DX-Series LIU. Line Interface Unit. Product Manual

Transcription

1 DX-Series LIU Line Interface Unit Product Manual

2 DX-Series LIU Line Interface Unit Product Manual Omnitronics Pty Ltd. All rights reserved. (ABN: ) Product Notice Please note that a major upgrade of the LIU was released in January This is known as the DX-Series LIU product. This product manual covers both the current DX-Series LIU and the pre-2011 LIU versions, and is compatible with DX-Altus systems and the legacy DX64. No part of the contents of this publication may be reproduced or transmitted in any form or by any means without the prior written consent of Omnitronics. Information contained in this document is provided solely to enable use of Omnitronics products. Omnitronics assumes no liability whatsoever for neither technical or editorial errors that may appear in this document nor does it make a commitment to update the information contained herein. Omnitronics retains the right to make changes to this information at any time without notice. Trademarks Microsoft and Windows are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. NGT is a registered trademark of Codan Limited. Freescale and Coldfire are either trademarks or registered trademarks of Freescale Semiconductor. SMARTnet is a trademark of Motorola. Firefox and the Firefox logos are trademarks of Mozilla Foundation. DX64, DX-Series LIU, RediTALK-Flex are trademarks of Omnitronics Pty Ltd. Technical Support If you require additional information or assistance with installation or configuration of this product, please contact our technical support at the appropriate contact details shown below. When contacting Omnitronics for support, please have your Omnitronics product serial number, system hardware, and system software versions available. Australia (Head Office) Omnitronics Pty Ltd 27 Sarich Court Osborne Park, WA 6017 Australia P: F: sales@omnitronics.com.au Australia (East Coast) Omnitronics Pty Ltd 301 Coronation Drive Milton, QLD 4064 Australia P: F: sales@omnitronics.com.au North America (USA) Omnitronics, Inc S. Harbor City Blvd, Ste #328 Melbourne, FL USA P: +1 (904) F: +1 (904) servicedesk@omnitronicsworld.com Documentation Feedback Omnitronics welcomes your comments and suggestions for improving this documentation. You can your comments and suggestions to documentation@omnitronics.com.au. Please include the Omnitronics product name and version with your correspondence. Omnitronics will carefully consider all feedback for future improvements to Omnitronics documentation and software. Date: November 2018 Document Number: MNL ii

3 Document Revision History Issue Date Description /2010 Original publication /2010 Minor updates to section Functional Overview /2011 Updated Index /2011 Updated section Using the configuration interface. Updated section LIU Configuration. Removed Appendix E: Echo Cancellation Using the PLI with an AFI-IP. Added Appendix E: Connecting to the DX-Series LIU. Added Chapter 5, Radio Diagnostics and Upgrading the Firmware /2012 Corrected E-Lead (Busy) Input Options /2014 Updated for DX-Altus. Updated Appendix B: Using the Built-in Menu System (Pre-2011) /2015 Updated section Summary of Menu Button Operation. Updated section "Viewing the System Status". Updated section "Technician Account". Updated section "Backing Up and Restoring the Configuration". Updated section "Backing Up the Configuration to a File". Updated section "Restoring the Configuration from a File". Updated section Serial Port. Updated section "About the Serial Monitor" /2017 Updated section "About the Serial Monitor". Updated section "Connecting to the DX-Series LIU". Updated section "Serial Monitor Commands". Updated section "Entering Commands". Updated section "Resetting to Factory Default Settings". Updated section "Connecting with Windows" /2018 Updated section Introduction. Updated section Startup and Initialization. Updated section Changing the LIU Address. Updated section User Accounts and Logging In. Updated section Modes of Operation. Updated section Menu Modes and Navigating Menus. Updated section Configuration and Diagnostics. Please report any errors or omissions in this document to Omnitronics so that such errors or omissions may be corrected in later issues (see Documentation Feedback on page ii). Contents iii

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5 Contents Introduction 1 What is the DX-Series LIU?... 1 Features... 2 Key Hardware Features... 2 Key Software Features... 3 Functional Overview... 3 Configuration and Diagnostics... 4 Related Documentation... 5 Document Conventions... 5 Using the Built-in Menu System 7 Startup and Initialization... 7 Multi-Level Menu System... 8 Using the Menu Button Modes of Operation Normal Mode Menu Mode and Navigating the Menus Edit Mode and Changing Settings Summary of Menu Button Operation Resetting to Factory Default Settings Upgrading the Firmware Configuring the DX-Series LIU 21 What is the Configuration Interface? Using the Configuration Interface Contents v

6 Layout of the Configuration Interface User Accounts and Logging In Configuration Status Saving Configuration Settings Restarting after Saving the Configuration Resetting the Configuration to Default Settings Exiting the Configuration Interface Viewing the System Status System Version Information Current Status Channel Information Configuring the TCP/IP Network Settings Basic Settings Network Settings Advanced Settings Using a DHCP Server Saving Network Settings Changing the Password Supervisor Account Technician Account Limited User Account Saving Password Changes Backing up and Restoring the Configuration Backing up the Configuration to a File Restoring the Configuration from a File LIU Configuration LIU Options Levels Configuration Port Levels Other Levels Selcall and Timing Configuration vi Contents

7 Selcall Parameters Selcall Timers PTT Guard Timers SMARTnet Radio/Trunk Pulse Mode VOX Configuration E & M Configuration Port Configuration Diagnostics and Upgrading the Firmware 53 Radio Diagnostics Fault Reporting Using the Diagnostic Report Feature Upgrading the Firmware Technical Reference 61 Specifications Wire Port Characteristics Frequency Response Digital and Analog I/O Connector E & M Configuration Options E-Lead (Busy) Input Options M-Lead (PTT) Output Options Notice of Compliance Programming with the Flash Programmer (Pre-2011) 69 What is the Flash Programmer? Using the Flash Programmer Upgrading the Firmware Using the Built-in Menu System (Pre-2011) 73 Navigating the Menu System Modes of Operation Contents vii

8 Menu Structure Menu Functions Trunk Network Mute Pulse Configuration Setting Mute Pulse Mode for a Channel Setting the Pulse Lead-in Time Setting the Pulse Width Adjusting LIU Levels Miscellaneous Options Hardware Configuration (Pre-2011) 81 LIU Mainboard Link Settings Bus Connections Audio Ports Serial Port Power Connectors Phone Line Interface Connectors TDM Interface Switches E & M Options Pin Connections for E & M Cable E-Lead (Busy) Input Options (using relay contacts) M-Lead (PTT) Output Options (using relay contacts) E-Lead (Busy) Input Options (components) M-Lead (PTT) Output Options (components) E & M Options (Connecting to +5V Supply) Transmit and Receive Analog Audio Path Diagnostics and Recovery with the Serial Monitor 95 About the Serial Monitor Installing the USB Device Drivers Connecting to the DX-Series LIU Using the Serial Monitor viii Contents

9 Serial Monitor Commands Entering Commands Resetting to Factory Default Settings Connecting to the DX-Series LIU 101 Connecting to the Network Connecting with Windows Step 1: Determine the IP address of your computer Step 2: Change the IP settings of your computer Step 3: Connect the DX-Series LIU to the computer Step 4: Configure the DX-Series LIU network settings Step 5: Restore the network settings of the computer Connecting with Mac OS X or Linux Glossary 109 Index 115 Contents ix

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11 Introduction This section provides an overview of the DX-Series LIU and includes the following topics: What is the DX-Series LIU? Features on page 2 Functional Overview on page 3 Configuration and Diagnostics on page 4 What is the DX-Series LIU? The DX-Series Line Interface Unit (LIU) is an eight-port radio communications hub designed to provide cost-effective interoperability between radios from different manufacturers and different RF systems. It incorporates a variety of signal processing and control techniques and is user configurable. The front panel of the DX-Series LIU provides a multi-function LCD with a backlight, a menu button for navigating the display, a USB port for upgrading the firmware, and a headset connector for monitoring the audio. The back panel includes power connectors, data-port connectors, and connectors for digital I/O. DX-Series LIU Product Manual 1

12 Features The DX-Series LIU provides eight 4-wire E&M (4W+E&M) channels that interface with DX-Altus and the legacy the DX64. These channels are normally used as the radio channels in a DX-Altus (and DX64) system although they can also be used as telephone channels. The DX-Series LIU includes the following features: Includes codecs for converting the 4W+E&M channels to digital signals. Connects to the TDM (Time Division Multiplex) buses and RS-485 bus to send/receive digital audio/data to/from the DX-Series SCU module. Supports selcall and DTMF encoding and decoding functions. Allows level adjustment of input and output on each 4W+E&M channel. Ability to generate system mute using VOX on each 4W+E&M channel for equipment that does not provide M-lead outputs. Provides 8 digital opto-inputs and two relay outputs for special functions. Allows for firmware upgrades (using the DX64CMU software for products manufactured prior to 2011 or the web-based configuration interface for products manufactured from 2011 onwards). Key Hardware Features The DX-Series LIU hardware manufactured from 2011 onwards is based on the success of its predecessor; but is completely redesigned from the ground up to make use of the latest in digital signal processing (DSP) technology and eliminates the need for physical hardware links. The key hardware features include: Standard 19-inch rack unit (1RU) Operates on 12VDC to 24VDC Eight independent analog 4-wire E&M ports Support for selcall (selective calling) detection/transmission Support for VOX (voice-operated switch) operation Simultaneous signal detection and generation on each port Digital level control of all signal inputs and outputs Opto-isolated mute (COS) inputs with contact, voltage, and switched options Isolated PTT outputs with contact, voltage, and switched options Transformer-isolated line audio Opto-isolated auxiliary digital inputs Dual relay outputs with changeover contacts for control applications Real-time clock for event scheduling 32-bit CPU with DSP coprocessor 10/100Mbit Ethernet port 2 x 16 character dot-matrix backlit LCD panel for status and diagnostics 2 Introduction

13 Key Software Features The operation of the DX-Series LIU is completely configurable using the built-in menu system and LCD on the front panel. You can also use the web-based configuration interface (2011 onwards) or the DX64CMU (DX64 Configuration and Maintenance Utility) software (pre-2011) with the Ethernet interface. Using the software configuration features, you can: Configure PTT Lead-Out (or hold ) period for selcall transmissions Configure PTT Lead-in (or delay ) period for selcall transmissions Monitor the status of the eight busy inputs and the eight PTT outputs (E&M ports) Change the levels for receive and transmit audio and selcall for any of the E&M ports Configure VOX activation thresholds and busy hold time Configure PLI (phone-line interface or telephone) features Increase, decrease, or disable the PTT "guard" timers for each of the channels (preventing continuous transmissions on radios) Configure lead-in time for use with SMARTnet Radio/Trunk Pulse Mode Functional Overview Receive and transmit audio for each of the eight ports has programmable level adjustment over a wide range of levels. E&M options cater for many Mute (COS) and PTT configurations. Each port has a VOX function for use with HF radios or audio bearers. The DX-Series LIU provides auxiliary I/O consisting of eight opto-isolated digital inputs, two relay outputs, and two analog inputs. The digital inputs and relay outputs are used for the Digital Control function of the DX-Altus (or DX64) system. Selective Calling (selcall) is used to allow operators to contact radios and it also provides an indication of incoming radios. DX-Series LIU Product Manual 3

14 Configuration and Diagnostics The DX-Series LIU provides several tools for configuring the settings. The following is a comparison of the configuration tools available. Parameter Built-in Menu Web-based interface* DX64CMU software** Set Transmit/Receive Levels per channel Set Transmit Selcall Levels per channel Set Selcall Lead-In Delay per channel Set Selcall Lead-Out Delay per channel Set Selcall Format and Repeat Tone Set Transmit DTMF Level Display Version Information Display Serial Number Set PTT Guard Timers per channel SMARTnet enable/disable per channel Set SMARTnet Lead-In Time Set SMARTnet Pulse Width VOX enable/disable per channel VOX for PLI enable/disable per channel Set VOX Threshold/Hold per channel DHCP enable/disable Set IP Address/Network Mask/Gateway Address Display MAC address Set PTT Output Mode per channel Set Busy Input Mode per channel Legacy Mode enable/disable Echo Cancellation per channel Change Device Network Name UPNP enable/disable Set DNS IP Address SNMP enable/disable Set SYSLOG Host Address Display LIU DX64 Address Set LIU DX64 Address Display Current LIU Status Diagnostic Functions per channel Print Configuration and Diagnostic Report * Web-based configuration only available for DX-Series LIU manufactured from 2011 onwards. ** DX64CMU software only available for DX-Series LIU manufactured prior to Introduction

15 The web-based configuration interface is the most comprehensive configuration tool as it also provides diagnostics tools. However, this is only available for the newer DX- Series LIU manufactured from 2011 onwards. The DX-Series LIU manufactured prior to 2011 can be configured using the DX64CMU (DX64 Configuration and Maintenance Utility) software. Additionally, both DX-Series LIUs can be configured using the built-in menu system with the LCD and MENU button on the front panel. Related Documentation This manual provides information about: Installing and configuring the DX-Series LIU product Using the DX-Series LIU product Troubleshooting the DX-Series LIU product In addition to this manual, the following document provides related information: DX-Series LIU Quick Start Guide (MNL-00004) Document Conventions The following conventions are used in this manual. Convention Blue, underlined text: Bold text Italic text Italic narrow text Italic text in quotation markes: see What is the DX-Series LIU? on page 1. Monospace text Description Website addresses and addresses Keys that are pressed, text typed into a UI element, such as a text box, UI elements that are clicked or selected, such as menu and list items, buttons, tabs, and check boxes. Text emphasis. File and directory names. Hyperlinked cross-references to other sections or paragraphs within the document. System output, configuration examples, commands and arguments. DX-Series LIU Product Manual 5

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17 Using the Built-in Menu System The DX-Series LIU provides a built-in menu system with an LCD on the front panel that you can use to view and configure the settings. This section discusses the menu system for LIU devices manufactured from 2011 onwards. For LIU devices manufactured prior to 2011, refer to Using the Built-in Menu System (Pre-2011) on page 81. This section includes the following topics: Startup and Initialization Multi-Level Menu System on page 8 Using the Menu Button on page 11 Modes of Operation on page 12 Resetting to Factory Default Settings on page 20 Upgrading the Firmware on page 20 Startup and Initialization Located on the front panel are a rotary MENU button and a 2x16-character dotmatrix LCD with backlight the DX-Series LIU manufactured prior to 2011 provides three push-buttons instead of the rotary MENU button. Use the MENU button to navigate the multi-level menu system for performing basic configuration of the DX-Series LIU. In normal mode, the LCD shows the current state of the inputs and outputs. In menu mode, it shows which menu or configuration setting is selected. When power is applied, the DX-Series LIU loads its configuration from Flash memory and performs startup and initialization tasks. During startup, the LCD shows several screens of information similar those shown in Figure 1. Figure 1. DX-Series LIU startup screens The start-up sequence takes about 20 seconds to complete. During the start-up sequence, the LIU boot loader loads and runs the firmware. It also loads the configuration settings from Flash memory. The product firmware version is then displayed for several seconds before it enters normal mode and is ready for operation, as indicated by and shown on the LCD. In normal mode, when any of the Busy inputs or PTT outputs on a port changes state, it will appear on the LCD (0 means port is OFF and 1 means port is ON). This provides an immediate visual indication of activity on the ports (or channels). DX-Series LIU Product Manual 7

18 Multi-Level Menu System The DX-Series LIU provides a sophisticated menu system with a multi-level menu structure. You use Menu mode for navigating the menus and for viewing and changing the configuration settings. To make it easy to navigate, the menu is partitioned into three functional categories: LIU Functions, Network Functions, and Miscellaneous Functions. These categories appear at the top level, as shown in Figure 2. MENU MODE Navigates multi-level menu structure (menu wraps around) Figure 2. Multi-level menu structure showing functional menus Each category of functions is further partitioned into its own sub-menu of configuration settings. Figure 3 illustrates the menu structure under the menu. This category of functions allows you to view and change functions related to LIU operation, such as transmit and receive audio levels. Figure 4 illustrates the menu structure under the menu, which provides functions to view and change the network-related settings of the LIU. It also shows the menu structure under the menu, which allows you to view the firmware version and product serial number as well as setting the PTT output mode and the Busy input mode on a per channel basis. 8 Using the Built-in Menu System

19 Figure 3. Menu structure for LIU Functions DX-Series LIU Product Manual 9

20 Figure 4. Menu structure for Network Functions and Miscellaneous Functions 10 Using the Built-in Menu System

21 Using the Menu Button The MENU button is a rotary push-button that you use to navigate the menu system to view and to change the configuration settings. The following summarizes the functions that you can perform with the MENU button. Menu Operation Press Press and hold for one second Rotate one-click clockwise Rotate one-click anticlockwise Description In Normal mode, selects Menu mode. In Menu mode, navigates down one level; or selects Edit mode to change a configuration setting. In Menu mode, navigates up one level. In Edit mode, accepts the selected configuration setting. In Normal mode, turns LCD backlight on. In Menu mode, navigates to the next menu item to the right at the current level. In Edit mode, increments the value of the selected setting. In Normal mode, turns LCD backlight off. In Menu mode, navigates to the next menu item to the left at current level. In Edit mode, decrements the value of the selected setting. You can configure most of the settings using the built-in menu system. Exceptions include the advanced network functions, the selcall parameters, and the VOX settings. Figure 5 illustrates how to use the MENU button to navigate the menu system. Figure 5. Using the MENU button to navigate the menus DX-Series LIU Product Manual 11

22 Modes of Operation The DX-Series LIU provides several modes of operation: Normal mode is for normal operation of the DX-Series LIU. It displays the operational status of the busy inputs and the PTT outputs. This is the mode in which the LIU starts up and operates for most of the time. Menu mode is for navigating the menu system and displaying the settings (see Menu Mode and Navigating the Menus on page 13). Edit mode is for editing or changing the value of a configuration setting. You use the MENU button to set the value (see Edit Mode and Changing Settings on page 17). Normal Mode When the LIU is in normal mode, the LCD shows the state of the busy inputs and PTT outputs of each port, as shown in Figure 6. Figure 6. Normal mode showing the status of the ports Port Status The first line displays the state of each of the Busy inputs from the ports, and the second line displays the state of each of the PTT outputs to the ports. An active busy input is shown as a and an inactive busy input is shown as a ; similarly, an active PTT output is shown as a and an inactive PTT output is shown as a. In this example, the port 1 has an active busy input and ports 2 and 5 have active PTT outputs. Backlight In Normal mode, rotating the MENU button one-click clockwise enables the backlight illumination of the LCD in dark environments, and rotating it anticlockwise turns off the backlight. 12 Using the Built-in Menu System

23 Menu Mode and Navigating the Menus Menu mode allows you to navigate the menu system and display the settings. Note The configuration settings for pre-2011 LIU can also be accessed using the DX64 Configuration and Maintenance Utility (DX64CMU). To enter and exit menu mode 1 While in normal mode, press the MENU button to enter menu mode. The first top-level menu is. 2 Do one of the following: To display the next menu at the same level, rotate the MENU button clockwise one-click. To display the previous menu at the same level, rotate the MENU button anticlockwise one-click. If you rotate the MENU button in the same direction, the menus will wrap-around. 3 To exit menu mode and return to normal mode, press and hold the MENU button for about one second. Note You can revert to normal mode from any top-level menu. DX-Series LIU Product Manual 13

24 Displaying the LIU Address Setting The following explains how to use the MENU button to view the address assigned to the DX-Series LIU in the LIU Address setting. To display the LIU Address setting 1 While in normal mode, press the MENU button to enter menu mode. The first top-level menu is. 2 Press the MENU button to navigate down one level to the. 3 Press the MENU button to display the value of the setting. To revert to normal mode 1 Press and hold the MENU button until appears on the display. 2 Press and hold the MENU button again until appears on the display. 3 Finally, press and hold the MENU button to exit menu mode. This returns to normal operation. 14 Using the Built-in Menu System

25 Displaying the Network Settings The following shows you how to navigate the menu system to display the and other network settings assigned to the DX-Series LIU. To display the IP Address setting 1 While in normal mode, press the MENU button enter mode. The first top-level menu is. 2 Rotate the MENU button one-click clockwise to the menu. 3 Press the MENU button to navigate down to. 4 Press the MENU button to display the setting. DX-Series LIU Product Manual 15

26 To display the IP Netmask setting 1 While in normal mode, press the MENU button enter mode. The first top-level menu is. 2 Rotate the MENU button one-click clockwise to the menu. 3 Press the MENU button to navigate down to. 4 Rotate the MENU button clockwise one click to navigate to, and then press the MENU button to display the value. 16 Using the Built-in Menu System

27 To revert to normal mode 1 Press and hold the MENU button to go up one level to on the display. 2 Press and hold the MENU button again until top-level menu appears on the display. 3 Finally, press and hold the MENU button to return to normal mode and display the port status. Edit Mode and Changing Settings Once you have selected the configuration setting that you want to change, press the MENU button to enter edit mode: the value of the setting blinks to indicate you can edit the value. You can change the value by rotating the MENU button. As you rotate the MENU button, you will feel a soft click as it rotates from one position to the next. Each time the MENU button clicks, the value is either incremented or decremented depending on the direction of rotation: rotating clockwise increments the value and rotating anticlockwise decrements the value. To accept the new value, press and hold the MENU button for about one second. An asterisk (*) then appears at the start of the second line to indicate that you changed the value of the setting. At this point, the new setting is not saved. To save the setting, press and hold the MENU button for one second. The value of the setting is then saved to the configuration. DX-Series LIU Product Manual 17

28 Changing the LIU Address Setting Usually, the address of the DX-Series LIU is factory set using the onboard DIP switches. In this case, you cannot change it using the LCD menu system or the webbased configuration interface. Note To change the address of the DX-Series LIU using the LCD menu system, or the web-based configuration interface, all of the onboard DIP switches must be set to the OFF position. If all of the switches are set to the OFF position (i.e. address not assigned), you can set the address using either the LCD menu system or the configuration interface. Figure 7 shows you how to change the LIU address using the LCD menu system. (1) Navigate to Set/View LIU Address item (2) Press to view LIU Address setting (3) Press to enter Edit mode (address digit blinks) (4) Rotate clockwise (to increment) or anticlockwise (to decrement) the address (5) Press to accept new value Asterisk indicates value has changed, but not yet saved (6) Press and hold to save configuration Saves configuration to FLASH Displays for 2 seconds then returns to Set/View LIU Address item Figure 7. Changing the value of the LIU Address setting in edit mode To change the LIU Address setting 1 Use the menu system to display the Set/View LIU Address item (see Displaying the LIU Address Setting on page 14). 2 Press the MENU button to display the LIU Address setting. 3 Press the MENU button to enter Edit mode. The address digit blinks to indicate you can edit the value. 18 Using the Built-in Menu System

29 4 To increase the address, rotate the MENU button clockwise; or to decrement the address, rotate the MENU button anticlockwise. 5 Press the MENU button to accept the new value. An asterisk next to the address indicates the value has changed but not yet saved. 6 Press and hold the MENU button for one second to save the configuration. When the configuration is saved, the display reverts to the Set/View LIU Address item after two seconds. Note If you do not press or rotate the MENU button within 5 seconds after entering edit mode, or while navigating the top-level menus, the LCD will revert to the normal mode. Summary of Menu Button Operation In summary, the LCD can operate in three modes: Normal, Menu, and Edit mode. In Normal mode, rotating the MENU button one-click clockwise turns the LCD backlight on and rotating it anticlockwise turns off the backlight. In Menu mode, you can navigate the multi-level menu system, and in Edit mode, you can change the value of the selected configuration setting. To select Menu mode, or to navigate down one menu level, press the MENU button. To navigate up one menu level, press and hold the MENU button for one second. In Menu mode, rotating the MENU button clockwise or anticlockwise navigates through menu items at the current menu level in the direction of rotation. To select Edit mode, press the MENU button whilst viewing a setting. In Edit mode, the setting blinks to indicate you can edit the value. In this mode, rotating the MENU button clockwise increments the value of the setting; and rotating the MENU button anticlockwise decrements the value. To accept a new value for a setting, press the MENU button: an asterisk (*) will appear on the start of the second line of the LCD to show the value has changed. To save the setting, press and hold the MENU button for one second. Most changes take effect as soon as the setting is saved to the configuration: some require a restart. DX-Series LIU Product Manual 19

30 Resetting to Factory Default Settings You may want to reset the DX-Series LIU configuration to factory default settings especially if the DX-Series LIU fails to start up properly due to a configuration error. Typically, this may be due to inconsistent network settings. You can use the following procedure to reset the DX-Series LIU to default settings should it fail to start up correctly. To reset the LIU to default settings 1 Disconnect the power to the LIU. 2 While you press and hold the MENU button on the front panel, reconnect power to the LIU. 3 Continue to press and hold the MENU button for about 20 seconds while the LIU completes its start-up sequence. The LIU should display the following messages as it resets its configuration to defaults: The LIU configuration should now be reset to its factory default settings. Upgrading the Firmware The firmware in the DX-Series LIU is stored in Flash memory so that it can be easily upgraded using the configuration interface when a new version becomes available. Note When upgrading the firmware, all configuration settings are preserved and will not be reset to factory defaults. Figure 8 shows the messages that appear on the front-panel display when upgrading the firmware via the web-based configuration interface. Display alternates between both screens at 2-second intervals until the firmware upgrade is complete. Waiting for user to click Restart on the Firmware Upgrade page Figure 8. Messages shown on the LCD when upgrading the firmware 20 Using the Built-in Menu System

31 Configuring the DX-Series LIU This chapter discusses the built-in web server that you can use to configure the settings of the DX-Series LIU product using a web browser with password-protected access, and includes the following sections: What is the Configuration Interface? Using the Configuration Interface Viewing the System Status on page 31 Configuring the TCP/IP Network Settings on page 33 Changing the Password on page 37 Backing up and Restoring the Configuration on page 40 LIU Configuration on page 44 Levels Configuration on page 45 Selcall and Timing Configuration on page 47 VOX Configuration on page 49 E & M Configuration on page 50 What is the Configuration Interface? The DX-Series LIU includes a built-in web server that provides a configuration and management interface called the configuration interface. This interface uses standard HTML and should be compatible with most web browsers. The web-based configuration interface provides a comprehensive user interface that consists of a series of web pages designed to help you configure the DX-Series LIU. Using the configuration interface, you can access all the status information, configuration parameters, and diagnostic tools in one convenient user interface. The configuration interface is compatible with the following web browsers, and it should also be compatible with later versions: Internet Explorer 9 11; Edge 38 and later Firefox 29 and later Google Chrome 14 and later Safari 5 and later Using the Configuration Interface All configuration and management of the DX-Series LIU is performed using either the DX64 Configuration and Maintenance Utility (for units manufactured pre-2011) or the built-in configuration interface (for units manufactured from 2011 onwards). DX-Series LIU Product Manual 21

32 You can also use the built-in menu system with the LCD on the front-panel to perform basic configuration of the DX-Series LIU. This section discusses how to use the configuration interface to configure the newer DX-Series LIU. The DX-Series LIU must be connected to an Ethernet computer network via the network connector on the front panel. The configuration interface is password protected to prevent unauthorized access to the settings. You must log in to the configuration interface before you can configure the DX-Series LIU. You need to know the IP address of the DX-Series LIU so you can connect to it using your web browser. If you are configuring the DX-Series LIU for first time, you can use the default IP address and type into the address bar of your web browser. This will load the log-in page in your web browser. Note If you do not know the IP address of the DX-Series LIU, you can use the built-in menu system with the MENU button and LCD on the front panel to access the Network Functions and view or change the network parameters accordingly. If UPNP is enabled in the DX-Series LIU, you should be able to discover the it on your network: its device name (e.g. LIU, Name: LIU , V ) will appear under the My Network Places on a computer running the Microsoft Windows operating system. Once you have located the device, double-click it to automatically load the log-in page in your web browser. Note To discover the DX-Series LIU on your network, the network settings of the DX-Series LIU must match those of the computer used to access the DX-Series LIU. That is, the IP address of the DX-Series LIU must be on the same sub-net as the IP address of the computer. Layout of the Configuration Interface Figure 9 shows the configuration interface when logged in under the supervisor account. The page shown here is the Network Configuration page (see Configuring the TCP/IP Network Settings on page 33) selected from the Network menu. At the bottom of this page is the Configuration Status area, which shows the status of the configuration and whether you have made any changes to the settings. This area appears on all pages that have configuration settings that you can change, and displays various status messages (see Configuration Status on page 27). Note If you use a version of a web browser that is not supported, the Configuration Status buttons may not be visible at the bottom of the browser window. This may happen with some older browsers, in which case, you can scroll to the bottom of the page to view the buttons. 22 Configuring the DX-Series LIU

33 Configuration page Shows name of page Basic Network Settings Displays the basic settings for the configuration page Advanced Network Settings Shows the advanced settings for the configuration page Configuration status Shows configuration status messages Menu panel Shows the configuration and diagnostics menus Control buttons Buttons to save, undo, and reset the configuration. Figure 9. Using the configuration interface The left-hand panel of the configuration interface provides the menu system, which shows a menu item for each of the available configuration pages the items shown in the menu depend on the user account you used when you logged in to the system and which menu mode you are using (the menu modes are discussed below). When you log in, the Basic Menu mode is shown by default. The various configuration pages are accessed by clicking the menu items located on the left-hand panel of the interface: selecting a menu item displays the corresponding configuration page on the right-hand panel. User Accounts and Logging In Before you can use the configuration interface, you must first log in using one of the built-in user accounts. Depending on the user account you use, you can either access all the configuration pages used to view and configure the DX-Series LIU, or just a subset of the pages. The configuration interface provides several types of user accounts that allow different levels of access: Supervisor Account provides full access to the configuration interface and allows supervisors or system administrators to configure all aspects of the DX- Series LIU. Technician Account provides access to only the System Status page and the Radio Diagnostics page. Limited User Account provides read-only access to the System page. DX-Series LIU Product Manual 23

34 To use the web-based configuration for the first time, launch your web browser and type into the address bar of the browser window (this is the default IP address of the DX-Series LIU). Figure 10 shows the default configuration login page displayed in Microsoft Windows Internet Explorer 8. Figure 10. Web-based configuration manager You need to log in by typing a valid user name and password. When you click on the Log In link, a password dialog similar to the one shown in Figure 11 is displayed (the dialog shown here is the dialog from Microsoft Windows Internet Explorer 8). When you configure the DX-Series LIU for the first time, you can log in under the built-in supervisor account. The default user name is omni and the password is liu (lowercase). Figure 11. Connecting to the configuration interface If you are not a supervisor, you can log in under either the Technician account or the Limited User account: you will need to check with your supervisor as to the correct user name and password to use. Note The user name is not case sensitive, however, the password is case sensitive. Once you have logged in, you will see the main System Status page, which is discussed in the following sections. You can also change the password used to access the configuration interface. 24 Configuring the DX-Series LIU

35 The various configuration pages are accessed by clicking on the menus located on the left-hand panel of the web interface: selecting a menu displays the corresponding configuration page on the right-hand panel of the web interface. Clicking Exit will close the configuration interface and take you back to the log-in page; you will need to enter the user name and password again to access the configuration pages. Supervisor Account When you log in under the Supervisor account, you will see the System Status page and menus depicted in Figure 12. Figure 12. System Status page with the supervisor account As a supervisor, you have unlimited access to the configuration interface and are responsible for configuring the DX-Series LIU and setting up the user accounts. Whilst you are logged in under the Supervisor account, it is recommended that you change the password of the Supervisor account so that non-supervisors cannot gain unrestricted access to the configuration interface. You should also set up the user name and password for both the Technician account and the Limited User account if required. DX-Series LIU Product Manual 25

36 Technician Account When you log in under the Technician account, the configuration interface shows only a limited set of menus and configuration pages, as shown in Figure 13. Figure 13. System Status page with the technician account Technicians can view the system status: System Version Information, the Current Status, and the Channel Information. Additionally, technicians can access the Radio Diagnostics page (see Radio Diagnostics on page 53). Limited User Account When you log in to the configuration interface under the Limited User account, the configuration interface shows only the System Status page, as shown in Figure 14. Figure 14. System Status page with the limited-user account 26 Configuring the DX-Series LIU

37 Configuration Status On all configuration pages that provide settings you can change, a configuration status area is displayed along the bottom edge of the page. This shows the status of the configuration settings for the current page, such as whether you have made any changes to the configuration, or the configuration has changed but you have not saved the changes you made. Figure 15 shows the Configuration Status area that is displayed when the configuration has not been changed. Save button Saves the configuration Figure 15. Configuration status area Undo button Discards any configuration changes Reset to Defaults button Resets to factory-default settings Restart button Restarts the device The Configuration Status area shows the status of the DX-Series LIU configuration, and provides several buttons to allow you to save or undo any changes you make to the configuration settings. You can also reset the DX-Series LIU to its default factory settings, and restart the DX-Series LIU as required. The buttons in the Configuration Status area and the function they perform are described below: Save allows you to save the changes you made to the settings on the configuration page displayed in the web browser. You must always save the configuration before navigating to another configuration page otherwise the changes will be discarded. Restart performs a restart of the DX-Series LIU using configuration settings from flash memory a restart is required after you save any the changes to the configuration. Reset to Defaults reloads the configuration with default values for settings on all configuration pages (not just the page displayed in the browser), but does not save the default settings to flash memory. Undo discards any changes that you made to the settings on the configuration page displayed in the web browser, and reloads the configuration. This affects the settings on all configuration pages; not just the settings on the current page. The area immediately above the buttons is the Status Message area, which is where the various status messages are displayed, as described below. DX-Series LIU Product Manual 27

38 Status messages Configuration Unchanged Configuration has been saved. Restart required to take effect. Data is invalid: IT HAS NOT BEEN SAVED Configuration reset to defaults: NOT SAVED Configuration reset to saved values Description Indicates that the configuration settings on the page have not changed. Indicates that the configuration settings have been saved into flash memory of the DX-Series LIU, but are not currently used. A restart is required before the new settings will take effect. Indicates that one (or more) of the settings entered was invalid and the configuration has not been saved. All configuration values on a page must be valid before any values will be saved. You must identify all incorrect configuration values and correct the errors. The Configuration Status area will show additional information about the incorrect value. Indicates that the ALL configuration settings have been reset to the default values; not just the settings on this page. However, you still need to save the changes to make the changes permanent. The configuration values on the configuration page have been restored to the values saved in the flash memory. This is the result of clicking the Undo button. Important If you change the configuration settings on a page, you must save the changes before leaving that page otherwise the changes will be discarded. Saving Configuration Settings When you make changes to the settings on a configuration page, or you restore the configuration from a backup file, you must save the changes to the DX-Series LIU; otherwise, when you navigate to another page, the changes will be discarded. To save the configuration changes, click the Save button on the current page. After you save the changes, you may need to restart the DX-Series LIU for the changes to take effect. This depends on what configuration page you are on and which settings you changed. Some settings take effect immediately and do not require a restart. In this case, the status message displayed changes to Configuration has been saved, as shown in Figure 16. Figure 16. Saving changes to the configuration settings 28 Configuring the DX-Series LIU

39 When you save settings that require you need to restart the DX-Series LIU, the status message changes to Configuration has been saved. Restart required to take effect, as shown in Figure 17. Figure 17. Saving changes to the configuration settings This message advises you that although the configuration has been permanently saved, you now need to restart the DX-Series LIU for the new settings to be loaded (see Restarting after Saving the Configuration below). Restarting after Saving the Configuration Once you have saved the existing configuration, you may need to restart the DX- Series LIU for the changes to take effect (see Figure 17). To restart the DX-Series LIU, click the Restart button on the page, as shown in Figure 18. Warning! Do not remove the power to the DX-Series LIU while it is restarting; otherwise you may damage the device or corrupt the firmware. While the LIU is restarting, the page will show Restart in Progress. After about 30 seconds, it should restart and you will be redirected to the log-in page. You can then log in again if you want to change some settings (see User Accounts and Logging In on page 23). Figure 18. Restarting after saving the configuration settings DX-Series LIU Product Manual 29

40 After restarting the DX-Series LIU, it is recommended that you back up the configuration to a file on your computer in case you need to restore the configuration later (see Backing up the Configuration to a File on page 41). If you can no longer use your browser to communicate with the LIU after restarting the device, it is most likely that the IP address of your computer is now on a different subnet to the LIU. In this case, you ll need to change its subnet to the same as the LIU before you can use your browser. For further information about how to change the subnet of your computer, refer to Connecting to the DX-Series LIU. Important You may need to refresh your web browser after the DX- Series LIU has restarted. Resetting the Configuration to Default Settings Sometimes you may want to reset the configuration of the DX-Series LIU to its factory default settings. This is especially useful when you need to troubleshoot a particular problem or the device is not operating as you expected. In this case, you can start with the default settings and carefully make changes as required to determine the cause of any problem. Figure 19 shows the three steps involved in resetting the configuration of the DX-Series LIU to factory-default settings. Reset to Defaults Resetting the configuration to factory-default settings Save Saving the configuration Restart Restarting the LIU Restart in progress DX-Series LIU is restarting after resetting to defaults Figure 19. Resetting the configuration to default settings 30 Configuring the DX-Series LIU

41 The first step in resetting the configuration to default settings is to click the Reset to Defaults button on the page. This resets the in-memory configuration to default settings; however, it does not make the changes permanent. To make the changes permanent after resetting to defaults, you then need to save the default configuration to the DX-Series LIU by clicking the Save button on the page. The final step in resetting to defaults involves restarting the device by clicking the Restart button on the page. The new settings will then be loaded when the DX-Series LIU restarts. Note, however, that because the DX-Series LIU is now reset to the factory-default settings, you may not be able to communicate with the device using the same IP address. This is because the DX-Series LIU has reverted to its default IP address set at the factory. In this case, you may need to temporarily change the network settings of your computer in order to use your web browser to communicate with the device (see Connecting to the DX-Series LIU for the further information on how to do this for your operating system). Exiting the Configuration Interface Once you have completed configuring the DX-Series LIU, it is recommended that you exit from the configuration interface by clicking Exit. This will log you out of the session and load the login page; you will need to type your user name and password to access the DX-Series LIU configuration interface again. For further information about logging in to the web-based configuration interface, refer to User Accounts and Logging In on page 23. Viewing the System Status Use the System Status menu to display the version information for both the hardware and firmware used in the DX-Series LIU, together with the current status of operation. Figure 20 shows the System Status page under the Supervisor account. All the values on this page are read-only: you cannot change any of the values on this page. DX-Series LIU Product Manual 31

42 Figure 20. System Status page System Version Information The System Version Information section displays the version information of the firmware that is currently loaded in the DX-Series LIU. The DX-Series LIU uses two microprocessors: the Freescale Coldfire microprocessor performs all of the network and system functions; and a Digital Signal Processor (DSP) performs the audio processing such as encoding and decoding. The LIU Coldfire application version is the version of the main firmware that you can update when a new version is available from Omnitronics. Also displayed here is the revision of the hardware and the serial number of the product. Current Status The Current Status section displays current status information about the operation of the DX-Series LIU and includes the following: IP Address shows the current address of the DX-Series LIU. Device Address shows the address of the device assigned to the DX-Series LIU. In this example, the DX-Series LIU is assigned the address of 1, which corresponds to channels 1 to 8 in a DX-Altus (or DX64) system. System up time or elapsed time since the DX-Series LIU was last reset (displayed as days, hours, minutes and seconds). Real Time Clock displays the date and time maintained by the real-time clock onboard the DX-Series LIU. The time is in 24-hour format and the date is displayed in yyyy/mm/dd format (e.g. 2010/05/31 14:49:42). Free memory shows the unused memory (Kbytes) in the IPR device. 32 Configuring the DX-Series LIU

43 DIP Switch displays the setting of the 4-way DIP switches onboard the DX- Series LIU. Channel Information The Channel Information section shows the current state of the PTT output, Busy input, last received selcall, and last transmitted selcall for each of the eight channels. Figure 21 shows an example in which CH3 (corresponding to CH3 in the DX-Altus or DX64 system) has an active PTT and received the selcall number "6800"; and CH1 received the selcall "4444" from the radio and last sent the selcall "2368" to the radio. Figure 21. Example of channel information Configuring the TCP/IP Network Settings Figure 22 shows the Network Configuration page that is displayed when you select the Network menu. Use this page to configure network settings, such as the IP address, network mask, and the gateway address of the DX-Series LIU. The Network configuration consists of several sections: Basic Settings, Network Settings, and Advanced Settings. It also has a Configuration Status section along the lower edge, which appears on all configuration pages that allow you to make changes to the settings. Figure 22. Network configuration page DX-Series LIU Product Manual 33

44 Important If you make any changes to the settings on this Network page, you must SAVE and RESTART for the network changes to take effect. Basic Settings The Basic Settings section includes only one setting: Device network name is the name presented to the network by the DX- Series LIU (this name will appear in Network Neighborhood on a Microsoft Windows computer. Note Only alphanumeric characters can be used for the name: it may not contain any spaces or punctuation characters. The maximum number of characters is 100. Network Settings The Network Settings section allows you to use a DHCP server for automatic allocation of the network settings or to manually specify a static IP address, net mask and gateway address, and includes the following: Automatically obtain IP Address (using DHCP) option is used to allow the DX-Series LIU to obtain an IP address automatically from a DHCP server. When DHCP is enabled, the static IP address and network gateway address settings will be ignored as appropriate settings will be allocated by the DHCP server. When this option is selected, the other network settings are disabled. The setting is disabled by default. Static IP Address is the IPv4 address of the DX-Series LIU, which consists of 32 bits expressed in a form consisting of four decimal octets separated by periods (dots), called dot-decimal notation. The default value is Note If you want to use the option to Automatically obtain an IP Address (using DHCP), the DX-Series LIU will attempt to locate a DHCP server on start up. If it cannot find a server, it will either use the static IP address or automatically assign itself an address in the range x.x. In this case, the DX-Series LIU will take an additional 20 seconds or so to start up Netmask is the subnet mask that determines what part of the IPv4 address is used to identify the subnet that the DX-Series LIU is on. A valid IPv4 subnet mask consists of 32 bits: a sequence of ones (1) followed by a block of zeros (0), expressed in a form consisting of four decimal octets separated by periods (dots), called dot-decimal notation. The sequence of ones (1) designates that part as the network prefix (subnet) and the block of zeros (0) designates that part as the host identifier. The default value is Configuring the DX-Series LIU

45 Gateway Address is the IPv4 address of the default network gateway. This would usually be the IP address of the router or network device that provides access to the WAN or internet. A valid IPv4 gateway address consists of 32 bits, expressed in a form consisting of four decimal octets separated by periods (dots), called dot-decimal notation. The default value is Advanced Settings The Advanced Settings section allows you enable the Universal Plug and Play (UPnP) technology to make it easy for devices to discover each other on the network, and various other advanced settings. Enable UPNP selects the Universal Plug and Play (UPNP) feature, which is a networking technology that allows devices to work together with fewer configurations. By enabling UPnP, the DX-Series LIU will be displayed in the Network folder Microsoft Windows 7/8/8.1/10 computer. The default setting is Enabled. Enable network discovery using Bonjour/mDNS protocol selects the Multicast Domain Name System (mdns) feature, which is a technology that allows devices on a LAN or WAN that supports multicast to provide a domain name instead of an IP Address. mdns automatically converts the domain name to the corresponding IP Address without the need of a dedicated DNS. By enabling this setting, IPR devices can use names rather than IP addresses on local LANs. However, Microsoft Windows does not support mdns. This is not normally used on a DX-Series LIU as it does not communicate with another Omnitronics IP device. The default setting is Enabled. Domain Name System (DNS) Server 1 is the primary Domain Name Server (DNS). The DNS is how an Internet addresses, such as is converted into a numeric (dot notation) address, like Consult with your ISP or network administrator to determine the correct address. In some cases, the DNS address is the same as the Gateway address. If the VoIP remote address is a numeric value or a local mdns address, you do not need to change this setting. A valid numeric IP Address is of the form nnn.nnn.nnn.nnn where nnn is a number between 0 and A value of indicates that no DNS is used. The default setting is (not used). Domain Name System (DNS) Server 2 is the backup DNS that is used in the event the primary DNS is not available. A valid numeric IP Address is of the form nnn.nnn.nnn.nnn where nnn is a number between 0 and A value of indicates that no DNS is used. The default setting is (not used). Note The DNS settings are not usually required as the DX-Series LIU does not need to connect with other IP devices DX-Series LIU Product Manual 35

46 Enable Simple Network Management Protocol - SNMP selects the Simple Network Management Protocol (SNMP) feature. SNMP provides a means to extract status information from the DX-Series LIU through a network management system. The DX-Series LIU provides several standard network statistics as well as the site monitoring and control I/O of the DX-Series LIU. If SNMP is not being used, this setting should not be selected. This feature is not available in this version of the LIU. Syslog host address is the address used for debugging and diagnosing faults with the DX-Series LIU, which can report debug and error information via a network protocol called SYSLOG. This setting is normally set to the default of (not used). A valid IPv4 address consists of 32 bits, expressed in a form consisting of four decimal octets separated by periods called dot-decimal notation (not ). A value of indicates that no SYSLOG messages are used. This is the default value. Using a DHCP Server Select Automatically obtain IP Address (using DHCP) to enable Dynamic Host Configuration Protocol (DHCP), which allows the DX-Series LIU to obtain an IP address automatically from a DHCP server. When DHCP is enabled, the static IP address, network gateway address, and domain name server settings will be ignored as appropriate values will be provided by the DHCP server. If you want to assign a static IP address to the DX-Series LIU, it is recommended that you allocate an address in the range of to or to as these are especially reserved for private addresses. Note If you want to use the option to Automatically obtain an IP Address (using DHCP), the LIU will attempt to locate a DHCP server on start up. If it cannot find a server, it will either use the static IP address or automatically assign itself an address in the range x.x. In this case, the LIU will take an additional 20 seconds to start. When using a DHCP server to automatically allocate an IP address to the DX-Series LIU, you will not be able to connect to the device since you will not know the IP address allocated by the DHCP server. In this case, you can use the menu system and the LCD on the front panel to determine the IP Address of the DX-Series LIU. Saving Network Settings Once you make changes to the Network Settings, you must save the changes to the DX-Series LIU; otherwise if you navigate to another configuration page, the changes will be discarded. To save the changes, click Save under Configuration Status. 36 Configuring the DX-Series LIU

47 Figure 23. Restarting the DX-Series LIU after saving the configuration settings When you save the changes, the message displayed under Configuration Status changes to "Configuration has been saved. Restart required to take effect." advising you to restart the DX-Series LIU so that the new settings can be used. Click Restart to restart the DX-Series LIU with the new settings. Figure 23 shows the configuration page when a restart is in progress. Changing the Password Figure 24 shows the Change Password configuration page that is displayed when you select the Change Password menu. This page allows you to change the supervisor password used to access the DX-Series LIU configuration interface. Figure 24. Changing the password of the configuration interface DX-Series LIU Product Manual 37

48 Supervisor Account To change the password used to access the configuration interface under the supervisor account, type the new password you want to use in the Enter supervisor password box, and then retype it in the Confirm password box. Make sure you save the new password by clicking Save (otherwise your changes will be ignored), and then restart the LIU by clicking Restart. Note Only supervisors can change the password of the Supervisor account. You cannot change the user name using the web-based configuration interface as it is factory set to omni and cannot be changed. Under Advanced Settings, supervisors can enable two additional types of accounts: a technician account and a limited user account. Supervisors can also change the user name and password allocated to each account type. Each account provides different access privileges to the menus, as discussed in the following sections. Technician Account The technician account provides limited access to the System Status, Statistics, and Diagnostics menus. Figure 25 shows how to enable and set up the Technician account. Figure 25. Enabling the technician account settings Under the Advanced Settings for Technician, the settings are as follows: Enable technician user allows users to log in to the configuration interface using the Technician account. The default setting is Disabled. 38 Configuring the DX-Series LIU

49 Technician user name is the user name allocated to the Technician account, and is the name that must be entered in the login dialog when a user wants to log in under this account. The name must contain alphanumeric text with no punctuation characters, spaces or tabs. The default user name is tech. Technician password is the password allocated to the Technician account, and must be entered into the log into login dialog when a user wants to log in under this account. The password must contain alphanumeric text with no punctuation characters, spaces or tabs. The default is password. To enable the Technician account, simply select Enable technician user; otherwise the account will be disabled. Type a user name in the Technician user name text box and a password in the Technician password text box. Make sure you save any changes by clicking Save (otherwise your changes will be ignored), and then restart the LIU by clicking Restart. Limited User Account The limited user account provides access to only the System Status and Statistics menus. Figure 26 shows how to enable and set up the Limited User account. Figure 26. Enabling the limited-user account settings Under the Advanced Settings for Limited user, the settings are as follows: Enable limited user allows users to log in to the configuration manager as a limited user by using the Limited user account. The default setting is disabled. Limited user name is the user name allocated to the Limited User account, and is the user name that must be entered in the login dialog when a user wants to log in under the account. The name must contain alphanumeric text with no punctuation characters, spaces or tabs. The default user name is user. DX-Series LIU Product Manual 39

50 Limited user password is the password allocated to the Limited User account, and must be entered into the login dialog when a user wants to log in under the Limited User account. The password must contain alphanumeric text with no punctuation characters, spaces or tabs. The default is password. To enable the Limited User account, simply select Enable limited user; otherwise the account will be disabled. Type a user name and password in the Limited user name box and a password in the Limited user password box. Make sure you save any changes by clicking Save (otherwise your changes will be ignored), and then restart the LIU by clicking Restart. Saving Password Changes Once you have made any changes to the user accounts, you must ensure that you save the changes by clicking Save, and then restart the LIU by clicking Restart as shown in Figure 27; otherwise the changes will be ignored. Figure 27. Restarting after saving changes to the configuration Backing up and Restoring the Configuration Select Backup/Restore on the menu to display the page for backing up and restoring the configuration.as shown in Figure 28. The options on this page allow you to backup and restore the DX-Series LIU configuration as a file on the hard disk of your computer. It is recommended that the configuration be backed up to a file for safe-keeping, in case it needs to be restored later. 40 Configuring the DX-Series LIU

51 Figure 28. Saving and restoring the configuration Backing up the Configuration to a File Once you have completed making changes to the configuration, it is recommended that you back up the configuration to a file (backup file) on your computer for safekeeping. You will be prompted to select a location for the file. The default file name is LIU_cfg.bin, but you can type a new filename if you wish. To back up the configuration 1 Click Backup to open the File Download dialog. 2 Click Save to save the configuration. You will be prompted for a folder and file name in the Save As dialog. 3 (Optional) If you want to use a different file name than the default (LIU_cfg.bin), type the file name in the File name box. 4 Click Save to download and save the existing configuration to the specified file. When the download is complete, the Download Complete appears. DX-Series LIU Product Manual 41

52 5 Click Close. The configuration should now be backed up to the specified file on your computer. Restoring the Configuration from a File You can restore the configuration in the DX-Series LIU to a previously backed up configuration by restoring it from a backup file on your computer. Once you have restored the configuration from the backup file, you then need to save it and restart the LIU for the configuration to take effect. To restore the configuration 1 Click Browse to open the Choose File to Upload dialog. 2 In the Choose File to Upload dialog, locate the configuration file (LIU_cfg.bin) on your computer, and then click Open. The full path and filename is shown in the Select Restore Configuration file box. 3 Click Restore to load and restore the configuration from the file on your hard disk. The Configuration Status changes to Configuration restore complete! (Configuration has not been saved). 42 Configuring the DX-Series LIU

53 4 Click Save to save the configuration to the DX-Series LIU. This saves the restored configuration to the DX-Series LIU, but the new configuration will not take effect until you restart the DX-Series LIU. The Configuration Status changes to "Configuration has been saved. Restart required to take effect" (see Restarting after Saving the Configuration on page 29). DX-Series LIU Product Manual 43

54 LIU Configuration Figure 29 shows the LIU Configuration page this is displayed when you select the LIU menu. This page allows you to set the device address of the DX-Series LIU and to enable legacy mode if required. Both of these are discussed below. Figure 29. LIU configuration page Important If you change any of the settings on this page, you must click Save to save the configuration; otherwise, the changes will be discarded. LIU Options The settings available under the LIU Options include the following: Device Address shows the address for the DX-Series LIU. This can be set either in hardware (using the on-board DIP switches) or in software (by typing the address in the text box). DX64 Level Legacy Mode enables the legacy mode for audio levels. The legacy mode makes the DX-Series LIU levels compatible with older DX-Series LIU products using version 4.52 or earlier firmware. If the device address is set in hardware (at least one DIP switch is set to ON), you cannot set it using this page. Instead, the device address set in hardware will be displayed here (the setting is read-only). If the device address is not set in hardware (all of the DIP switches are set to OFF), you can specify the address by typing it into the Device Address text box, as shown in Figure 30. The address can be set from 1 (the default) to Configuring the DX-Series LIU

55 Figure 30. Specifying the device address Levels Configuration Figure 31 shows the Levels Configuration page that is displayed when you select the Levels menu. The eight port tabs across the top of the page represent the eight 4- wire plus E & M ports of the DX-Series LIU. The configuration page for each port is accessed by clicking on the appropriate port tab. Each port page allows you to set the gains for the Receive Input, Transmit Output, and the Selcall Transmit for the port. The DTMF Transmit Level is set on the Other page. All signals are displayed in decibels (db). Figure 31. Levels configuration page Figure 32 shows the Other tab, which allows you to adjust the DTMF output level common to all eight ports (or channels). DX-Series LIU Product Manual 45

56 Figure 32. Settings on the Other tab of the Levels page Important If you change any of the settings on this page, you must click on the Save button to save the configuration; otherwise, your changes will be discarded. Port Levels Each port page allows you to configure the port levels of the DX-Series LIU, which include the following: Receive Input provides a dropdown list that allows you to change the sensitivity of an input. A maximum gain of +/-17.69dB is available from the default setting of 0.0dB. Transmit Output provides a dropdown list that allows you to change the gain of an output. A maximum gain of +/-17.69dB is available from the default setting of 0.0dB. Selcall Transmit provides a dropdown list that allows you to select the output gain of the selcall tones. When a 600-ohm load is connected to the output, this gain can be read as dbm. This gain can also be related to an actual level. For example, the Selcall Transmit gain of -10dB will provide -10dBm when a 600-ohm load is connected to the output. In this example, it's interesting to note that the receive-input gain for port 1 is attenuated by 2.78dB. You would usually do this if you were expecting a nominal level from the radio of around -7dBu. The nearly 3dB of loss at the input will give the correct level of around -10dBu in the DX-Altus or DX64 system. The transmit gain has been increased by 2.35dB. You would do this if the connected radio required a nominal level of around -8dBu. Note The input and output gains are not actual levels, but are gain figures. 46 Configuring the DX-Series LIU

57 Other Levels The settings that you can adjust on the Other page include the following: DTMF Transmit Level provides a dropdown list that allows you to select output gain of the DTMF tones (these would be used for telephone dialing and channel change using an Omnitronics 970DD connected to an LIU port). A maximum gain of +/-17.69dB is available from the default setting of 0.0dB. Note The parameters on the Other tab are not used in the LIU product. In this example, the Selcall Transmit gain is set to -8dB. This would actually be 8dBm if input impedance of the connected radio is 600-ohm. Selcall and Timing Configuration Figure 33 shows the Timing Configuration page that is displayed when you select the SELCALL/Timing menu. The settings on this page allow you to adjust the selcall parameters, such as the scheme and repeat tone, the selcall lead-in and lead-out times, PTT guard timers, and SMARTnet Trunk Radio parameters. Figure 33. Selcall and timing configuration page Important If you change any of the settings on this page, you must click on the Save button to save the configuration; otherwise, your changes will be discarded. DX-Series LIU Product Manual 47

58 Selcall Parameters The settings under the Selcall Parameters section include the following: Selcall Scheme/Format provides a dropdown list that allows you to select the Selcall Scheme and Format you want to use such as CCIR and EIA etc. Selcall repeat tone provides a dropdown list that allows you to select the repeat tone to use. In this example, the selcall scheme is set to CCIR with repeat tone "E". Selcall Timers The settings under the Selcall Timers section include the following: PTT Lead-in is the length of time in milliseconds between the PTT going active and the selcall transmission commencing for a particular port or channel. Valid values range from 0 to 255 (2550ms) and are specified in multiples of 10ms. PTT Lead-out is the length of time in milliseconds between the end of the selcall transmission and the PTT going inactive for a particular port or channel. Valid values range from 0 to 255 (2550ms) and are specified in multiples of 10ms. In this example, all channels have a selcall PTT lead-in time of 500ms and a selcall PTT lead-out time of 0ms. PTT Guard Timers The settings under the PTT Guard Timers section include the following: Enable determines whether the PTT Guard Timer for a particular port or channel is used. The timer prevents a PTT from staying on indefinitely, for example, when the operator's PTT is "stuck" on. Timeout is the value of the PTT Guard Timer in seconds for a particular port. You can enable or disable the PTT guard timer for each port or channel. This value can be set from 30 to 1800 and is specified in seconds. In this example, channels 1 to 6 have PTT guard timers enabled with a timeout of 180 seconds on each channel. SMARTnet Radio/Trunk Pulse Mode Each port or channel can be configured for a SMARTnet Trunk Radio network by enabling the Trunk Pulse Mode parameter on a particular port or channel. When this setting is enabled, the DX-Series LIU generates an internal busy pulse on the channel when a PTT is generated. This allows the operator to hear confirmation tones from a SMARTnet Trunk Radio system. 48 Configuring the DX-Series LIU

59 Trunk Pulse Mode Enable for channels 1 to 8 enables the trunk-pulse mode for a SMARTnet Trunk Radio network on the particular port or channel. Trunk Pulse Lead-in Time is the length of time in milliseconds between the PTT going active and the busy going active. The valid values are 0 to 2550 milliseconds (0 to 2.55 seconds). Trunk Pulse Width is the length of time in milliseconds that the busy signal is active. The valid values range from 0 to 2550 (0 to 2.55 seconds) and are specified in milliseconds. Note Both the Trunk Pulse Lead-in Time and the Trunk Pulse Width parameters are common to all ports or channels. In this example, none of the channels has the SMARTnet compatibility function enabled. If any channels were enabled (Trunk Pulse Mode Enable), a PTT on that channel would cause a busy on the channel 2000ms later, and this busy would last for 2000ms (2 seconds). VOX Configuration Figure 34 shows the VOX Configuration page that is displayed when you select the VOX menu. This page allows you to configure and use the VOX (Voice Operated Switch) control feature of the DX-Series LIU to generate a busy signal when detecting voice activity on a port. The busy signal is required for the voice audio to be passed to the operator's headset. If VOX operation is enabled on a port, a busy signal will be generated when audio is detected on the receive input. The audio detection is based on the signal level of an audio input exceeding the value of the VOX Threshold setting. Once the audio falls below the threshold level, the busy will remain for a certain time known as the VOX Hold Time. Figure 34. Enabling VOX operation on selected ports DX-Series LIU Product Manual 49

60 Important If you change any of the settings on this page, you must click on the Save button to save the configuration; otherwise, your changes will be discarded. You can configure specific ports to use VOX operation by selecting the appropriate VOX Enable setting. The settings under the VOX Configuration section include the following: VOX Enable enables the VOX operation on a the particular port or channel. Phone (PLI) Mode enables operation with telephone channels when using a telephone/pli interface into the DX-Series LIU port if telephone to radio channel patching is required. Threshold provides a dropdown list to allow you to select the VOX threshold level for a particular channel. The higher the value, the more audio level is required to generate the busy signal. At the "2.5000V" setting, it will take approximately -26dBu of input audio (sine wave) to generate a busy signal. At the "0.3125V" setting, the sensitivity will be better than -42dBu (sine wave). These threshold points are not affected by the DX-Series LIU receive gain. Hold Time is the length of time that the busy signal is held on after the audio is removed. The range of valid values is from 200 to (200 to ms) and is specified in milliseconds. In this example, VOX operation and PLI Mode are enabled for ports 7 and 8. The threshold for these channels is V and the hold time is 1000ms (1 second). E & M Configuration Figure 35 shows the E & M Configuration page that is displayed when you select the E & M menu. This page allows you to configure the E & M settings for each of the eight data ports. In this example, Port 1 has the CONTACT option for the PTT output and VOLTAGE option for the Busy input The E input is also known as the Busy input, and the M output is also known as the PTT output. Figure 35. E & M configuration page showing settings for port 1 50 Configuring the DX-Series LIU

61 This configuration page displays a warning message to ensure that you disconnect radios or other devices from the ports before changing any of the configuration settings; otherwise, if you do not make the correct settings for the ports, you may cause damage to the external equipment or to the DX-Series LIU product. Important If you change any of the settings on this page, you must click on the Save button to save the configuration; otherwise, your changes will be discarded. Port Configuration Under the E & M Configuration, you can set the following for each port: PTT Output Control sets the type of output control for the PTT output. You can select the required output type from a list of four options: Contact The PTT output will be an isolated pair of contacts from a solid state relay in the DX-Series LIU. This is the default setting. Voltage The PTT output will be a voltage source switched through the solid state relay contacts to the device and the return line is ground. Switched Ground The PTT output will be a ground switched through the solid state relay contacts to the device. Switched Power The PTT output will be a voltage source switched through the solid state relay contacts to the device. BUSY/MUTE Input Control sets the type of input control for the BUSY (MUTE) input. The available values are the same for the PTT Output Control. You can select the required input type from a list of four options: Contact Current is sourced by the DX-Series LIU through an optocoupler to the device where it should be switched by a pair of isolated contacts and returned to the DX-Series LIU to complete the circuit. Voltage A voltage source on the connected device supplies current to the DX-Series LIU input where it passes through an opto-coupler and then returned to the device. Switched Ground Current is sourced by the DX-Series LIU through an optocoupler to the device where it should be switched to ground in the connected device. DX-Series LIU Product Manual 51

62 Switched Power A voltage source on the connected device supplies current to the DX-Series LIU input where it passes through an opto-coupler and is then returned to ground in the DX- Series LIU. Warning! Do not change any settings on the E&M port pages while external devices are connected to the ports; otherwise, you may cause damage to the DX-Series LIU or to the external devices. 52 Configuring the DX-Series LIU

63 Diagnostics and Upgrading the Firmware This chapter discusses the radio diagnostics page and how to update the firmware in the DX-Series LIU product, and includes the following sections: Radio Diagnostics Fault Reporting Using the Diagnostic Report Feature on page 55 Upgrading the Firmware on page 57 Radio Diagnostics The DX-Series LIU provides a diagnostics page that you can use to troubleshoot the radio and/or the DX-Series LIU. It also allows you to print and save diagnostic information, which will be required by Omnitronics to provide the best technical support possible. Figure 36 shows the Radio Diagnostics page that is displayed when you select Radio under the Diagnostics menu. This page is not intended for end-users, and is therefore accessible only under the Supervisor and Technician accounts. Figure 36. Radio diagnostics page Note To view the diagnostics page, you must be logged in under the Supervisor or Technician accounts. The Radio Diagnostics page is used to test the DX-Series LIU radio configuration and diagnose any problems. It includes the following diagnostic tools: DX-Series LIU Product Manual 53

64 Restart LIU allows you to restart the DX-Series LIU by clicking on the Restart button. Print Configuration allows you view and print the complete configuration of the DX-Series LIU by clicking on the Print button. This opens a new browser window that displays the existing configuration in a tabular format: you can print the configuration from this window. Diagnostic Report allows you to view and save diagnostic information that may assist you and Omnitronics technical support engineers in diagnosing and troubleshooting problems with the operation of the DX-Series LIU. Clicking on the Report button opens a new browser window that displays comprehensive diagnostic information about the operation of the DX-Series LIU. You can save the report to a file on your computer or print the report from this window. Note If you experience a problem with your DX-Series LIU, such as a particular channel is not operating as expected, please save the diagnostic report and it to Omnitronics technical support our technical support engineers will analyze the report and provide a solution to your problem (see Fault Reporting Using the Diagnostic Report Feature on page 55). Date and Time allows you set the real-time clock onboard the DX-Series LIU. Once you have typed the date and time, click on the Set Time button to set the real-time clock. This feature is not available in a DX64 system. You can also view and set diagnostic parameters on each of the eight ports. To view or set the parameters for a port, select the corresponding port tab. Each port includes the following parameters: Audio Loopback internally connects the local audio input to the local audio output on the port; the loopback is done at the digital interface. To enable audio loopback, click the Enable button. Play test tone transmits a 1000Hz tone at the local transmit output on the port. To transmit a tone, click the Enable button. Remember to disable this function in normal operation; otherwise a tone will be sent out on the radio system every time a PTT occurs! Local Push To Talk turns on the local transmit output on the port. To transmit, click the Turn ON button. Normally used in conjunction with Play test tone to send the test tone to air. Click Turn OFF to stop the PTT. DTMF/SELCALL Transmit Sequence specifies a sequence of digits to send via SELCALL or DTMF. This is used in conjunction with the Send DTMF and Send SELCALL buttons. If a selcall is to be sent, the number of digits should correspond to the selcall system being used. Type the sequence of digits in the box, and then click on the DTMF or SELCALL button to transmit the sequence. 54 Diagnostics and Upgrading the Firmware

65 Send DTMF sends the sequence of digits in the DTMF/SELCALL Transmit Sequence box to the local device as a sequence of DTMF tones on the transmit output of the port. To send the DTMF tones, click the DTMF button. A PTT will be applied to the port when the sequence is sent. Send SELCALL sends the sequence of digits in the DTMF/SELCALL Transmit Sequence box to the local device as a SELCALL sequence on the transmit output port. When sending a selcall, the sequence must have the same number of digits as the number of tones configured for selcall. Click on the SELCALL button to send the selcall. A PTT will be applied to the port when the sequence is sent. Fault Reporting Using the Diagnostic Report Feature If you are experiencing a fault or problems with your DX-Series LIU product, it is highly recommended that you send a device diagnostic report, in addition to a detailed description of the fault, to Omnitronics Technical Support for further analysis (see the Technical Support on page ii of this manual for further details). The following procedure provides step-by-step instructions for generating a diagnostic report for the DX-Series LIU. To generate a diagnostic report 1 Using your web browser, log in to the DX-Series LIU product. For further information about logging in, refer to User Accounts and Logging In on page 23. After logging in to the DX-Series LIU, the System Status page will appear in your browser. 2 Open the Radio Diagnostics page by clicking Radio under Diagnostics. The Radio Diagnostics page is displayed in your browser. DX-Series LIU Product Manual 55

66 Radio Diagnostics page Shows diagnostics tools and information Report button Opens the Diagnostic Report window 3 On the Radio Diagnostics page, open the Diagnostic Report window by clicking Report. Note If your browser uses a pop-up blocker (or in some cases, has the security settings set to the maximum), the diagnostic report may be blocked. In this case, you should disable your browser's pop-up blocker and/or reduce the security settings for your browser. The Diagnostic Report provides detailed technical information about your DX- Series LIU. 4 Save the diagnostic report by clicking Save. The report is saved in HTML format to the hard disk on your computer. Note Not all web browsers and operating systems support the Save feature. It may, therefore, be necessary to save the page using one of the alternate methods discussed in the side-bar Saving the Diagnostic Report below. Save button Saves the diagnostic report to your hard disk 5 Close the Diagnostic Report window by clicking Close. 56 Diagnostics and Upgrading the Firmware

67 6 After saving the diagnostic report, create a new message addressed to support@omnitronics.com.au and attach the Diagnostic Report. Try to provide as much information as possible to assist Omnitronics support engineers in diagnosing and resolving the problem, including a description of the fault, how it occurs, when it occurs, and its effect. Saving the Diagnostic Report If your browser will not save the Diagnostic Report when you click the Save button, you can try the following alternate methods: Right-click on the page and select Save Page As from the pop-up menu; or On the browser's File menu, select Save Page As. In the Save As window that opens, specify the location and file name of the Diagnostics Report you want to save (the default file name is report.asp.htm). If you still do not have any success in saving the Diagnostics Report, you can try the following: Highlight all the text on the web page using your mouse; or Right-click on the page and select Select All from the pop-up menu; or Select Select All from the Edit menu (you can also press Ctrl-A if you are using Microsoft Windows); and then right-click and select Copy from the pop-up menu (or press Ctrl-C if you are using Microsoft Windows) to copy the text to the clipboard. You can then open a text editor, such as Notepad or WordPad, and paste the text into a new document (you can also use a word processor such as Microsoft Word or OpenOffice Writer). After copying the text into the document, save the document to your computer in the default format with an appropriate file name. Upgrading the Firmware Figure 37 shows the Firmware Upgrade page this is displayed when you select the Firmware Upgrade menu. This page is not intended for end-users and is available only to system administrators: it is accessible only under the Supervisor account. Omnitronics may release new versions of the DX-Series LIU firmware from time to time to add additional features or to resolve issues. This page allows you to upgrade the Coldfire processor firmware. You can view the version loaded into the DX-Series LIU on the System Status page. The device configuration settings may return to the factory default settings after the firmware is upgraded, so it is recommended that you back up the configuration settings with the Backup/Restore menu before upgrading the firmware (see Backing up and Restoring the Configuration on page 40.) DX-Series LIU Product Manual 57

68 Figure 37. Upgrading the firmware in the DX-Series LIU Note To view the Firmware Upgrade page, you must be logged in under the Supervisor account. To upgrade the firmware in the DX-Series LIU, click on the Browse button to search for the firmware file on your computer; the firmware file is identified with a.bin.gz extension, and will normally consist of a number for the first part of the file name (e.g bin.gz). Once you have selected a file, the full path and filename will appear in the Select file box. Click on the Upgrade button to commence the firmware upgrade process. Warning! Do not remove power to the device during the ugrade process, as it may cause damage to the product or corrupt the firmware. While the firmware upgrade is in progress, a progress indicator will keep you informed of the progress, as shown in Figure 38. Once the upgrade process is complete, the page will display a message indicating that the firmware has been successfully programmed into flash memory, as shown in Figure 39. Figure 38. Firmware upgrade in progress A Restart button will appear allowing you to restart the device; the new firmware will not be loaded until the device is restarted. 58 Diagnostics and Upgrading the Firmware

69 Figure 39. Firmware upgrade completed Important If the LIU fails to upgrade the firmware, do not remove the power. Try repeating the firmware upgrade process again. You must now restart the DX-Series LIU so that the upgraded firmware can be loaded. When you click on the Restart button shown in Figure 39, the DX-Series LIU will restart and the upgraded firmware will be loaded. Whilst the DX-Series LIU is restarting, you will see the "Restart in Progress" page, as shown in Figure 40. Figure 40. Restarting the DX-Series LIU after upgrading the firmware DX-Series LIU Product Manual 59

70

71 Technical Reference This section provides the specifications of the DX-Series LIU and the pin assignments for connectors used by the DX-Series LIU. This chapter includes the following topics: Specifications 4-Wire Port Characteristics on page 63 E & M Configuration Options on page 65 Notice of Compliance on page 68 Specifications The specifications of the DX-Series LIU are listed below. Power Operating Supply Voltage Operating Current Power Dissipation Reverse Polarity Protection (Current) Digital Interface (DB25 Connector) Relay Outputs Digital Inputs Analog Inputs Radio Ports Input Impedance Output Impedance Input Level Output Level Software Programmable Gain Frequency Response +12VDC (+12 to 30VDC) 180mA 4.32W (typical) 0mA (typical) Relay contact limit is 30VDC or 1A and the maximum power rating is 30W. 5VDC to +30VDC and are isolated and polarity independent. 0V to +16VDC. 600 Ω 600 Ω -10dBm (-30 to +6 dbm) -10dBm (nominal), +3dBm (max) -36 to +12 dbm 300 to 3500 Hz Channel Distortion 1kHz < 0.8 % Channel Noise Out (No Input) E-Input Lead Input DC Voltage E-Input Lead Input DC Current M-Output Lead Output Current < -75 dbm 5 to 30 V 10.3 ma 80 ma DX-Series LIU Product Manual 61

72 M-Output Lead Output Resistance Monitor Port Output Impedance (1kHz) Output Level* Selcall Signal Output Level (all channels)* DTMF Signal Output Level (all channels) Tone Frequency Error 35 Ω (typical) 50 Ω (max) 150 Ω (typical) -10 dbv Signal Distortion < 1 % Isolated Digital Input/Output Port Opto Inputs 8 Input Resistance Input Voltage Input Current Relay Outputs 2 Switching Voltage Switching Current Switching Power Contact Resistance Analog Inputs 2 Input Impedance Input Voltage Range** Frequency Response (3dB) Network Interface Interface Communications Type Data Rate Configuration Physical Dimensions Environmental Operating Temperature Storage Temperature -40 dbm to 0 dbm -10 dbv* (-9.5 to-10.5 dbv*) 0.5 Hz (typical) < 1 Hz (max) 4700 Ω ±5 to ±30 VDC 24 VDC (0.01 to 220 VDC) 1 A 30 W 50 Ω 24 k Ω Humidity (non-condensing) 95 % 5 VDC (0 to 30 VDC) 30 Hz (0 Hz min) 10 / 100 BASE-T Ethernet with autodetection MDIX USB (2011 onwards); RS232 Asynchronous (pre-2011) USB 2.0 (2011 onwards); 9600 bps (pre-2011) 8 Data, 1 Stop, No parity 485mm(W) x 45mm(H) x 255mm(D) -40 to 50 C (-40 to 122 F) -55 to 60 C (-67 to 140 F) 62 Technical Reference

73 MTBF 70,000 hours * dbv is referenced to 1V RMS (which is 2.83Vpp or 0dBV). Example: -10dBV = 0.89Vpp = -7.78dBm into 600Ω ** Input voltages above 5V are clamped to the internal 5V rail. Figure 41 shows the DX-Series LIU front panel and the dimensions of the enclosure. Figure 41. DX-Series LIU front panel and dimensions 4-Wire Port Characteristics This section describes the frequency response and the noise output levels for the 4- wire port. Frequency Response The frequency response shown in Figure 42 was measured through the 4-wire port with a digital loopback in place. The digital loopback processes the audio as data through the codec, DSP and Coldfire processor chips. This plot is derived from a 10dBm input on channel 1 and the output measured at channel 4. DX-Series LIU Product Manual 63

74 Figure 42. Frequency response Digital and Analog I/O Connector Figure 43 shows the pin assignments of the DB25 connector located on the back panel of the DX-Series LIU. This connector is used for digital and analog I/O. Figure 43. Digital and Analog I/O connector pin assignments Connections The male DB25 connector found on the right hand side of the rear of the DX-Series LIU (viewed from the rear), above the TDM connector contains the relays and digital and analog inputs. The digital input pairs are not polarity sensitive and the voltage range is +5Vdc to +30Vdc. As depicted in Figure 43, the digital input pairs are not polarity sensitive. For example, to activate digital input 1, you may connect pin 1 to 0 volts (or ground) and connect pin 14 to a voltage range of between +5VDC and +30VDC; or you may connect pin 14 to 0 volts and connect pin 1 to a voltage range of between +5VDC and +30VDC. This applies to all digital inputs at the DB25 connector. 64 Technical Reference

75 E & M Configuration Options The E-lead (from Ear requiring an input) and M-lead (from Mouth providing an output) each have four available set-up options; contact, voltage, switched ground, and switched power. The options are configurable using the web-based configuration interface. Choose one E (Mute) option and one M (PTT) option. Refer to Table 1 and the following pages for all possible E&M configuration options. Table 1. E&M configuration options Label Description Level Pin Assignment Rx Transformer isolated input -20 to +4dBm 4=RxA, 5=RxB Tx Transformer isolated output -20 to +4dBm 3=TxA, 6=TxB M (PTT) (See link options) Voltage-free relay contacts +10V relay contact closure Switched Ground External +30V Max 1, 2 Biploar (default) 1=+10V, 2=0V 1=Power, 2=Open 1=Load, 2=Open Switched Power E (Mute) Opto-isloated contact 2mA Max 7=0V, 8=+10V (See link options) Opto-isolated voltage Switched External Ground Switched External Power External +5V to +30V 2mA Max External +5V to +30V 7, 8 Biploar (default) 7=Open, 8=2mA 7=Open, 8=ExtGnd The following sections show how the E & M lines of the DX-Series LIU can be interfaced to various types of equipment. The information is presented on two levels: a conceptual level using relay contacts and coils; and a practical level using typical circuitry. DX-Series LIU Product Manual 65

76 E-Lead (Busy) Input Options The options available for the E-Lead (Busy) inputs are configured using links A and B. A configuration diagram and rear panel view of each option is shown in Figure 44. Individual options may be configured for each available port. Figure 44. E-Lead (Busy) configuration using components 66 Technical Reference

77 M-Lead (PTT) Output Options The options available for the M-Lead (PTT) outputs are configured using links C and D. A configuration diagram and rear-panel view of each option is shown in Figure 45. Individual options may be configured for each available port. Figure 45. M-Lead (PTT) configuration using components DX-Series LIU Product Manual 67

78 Notice of Compliance CE (Europe) Omnitronics Pty Ltd declares under our sole responsibility that the product DX-Series LIU to which this declaration relates, is in conformance with the following standards: EN : Electromagnetic Compatibility Generic Immunity Standard CISPR Class A: IT Equipment Radio Disturbance Characteristics We hereby declare that the above equipment is in compliance with all essential requirements of Directive 89/336/EEC. The technical documentation pertaining to the above equipment can be made available for inspection on application to Omnitronics Pty Ltd. RoHS Omnitronics Pty Ltd confirms that the DX-Series LIU product complies with the Directive 2002/95/EC (RoHS). SAA (Australia) To ensure compliance with ACA Technical Standards, this equipment has been tested and complies with the following standard: AS/NZS CISPR Class A: IT Equipment Radio Disturbance Characteristics To Connector Power Lead Power Source Note: For this product to comply with C-Tick approval regulations it is essential that a power lead fitted with a ferrite core is used for connecting the product to the power supply. Note also that it is the responsibility of the customer to ensure that this lead is fitted at the time of the installation of this product. FCC (USA) Part 15 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Relates to Omnitronics products identified as: DX-Series LIU. 68 Technical Reference Ferrite Core

79 Programming with the Flash Programmer (Pre-2011) This section discusses using the Omnitronics Firmware Flash Programmer utility software and how to use it to upgrade the firmware in the pre-2011 versions of the DX-Series LIU. You cannot use this software to upgrade the firmware in the DX-Series LIU manufactured from 2011 onwards; you must use the web-based configuration interface instead. This section includes the following topics: What is the Flash Programmer? Using the Flash Programmer on page 70 Upgrading the Firmware on page 70 What is the Flash Programmer? The Omnitronics Firmware Flash Programmer (Flash.exe) is a firmware programming utility with a graphical user interface that makes it easy to upgrade the firmware in the standard DX-Series LIU. It runs under the Microsoft Windows operating system (95, 98, NT, XP, Vista, Windows 7), and it supports several types of Omnitronics products including the DX-Series LIU. The DX-Series LIU uses on-board Flash memory to save the firmware so that it can be upgraded when a new version becomes available. Figure 46 shows the main screen of the Firmware Flash Programmer. Figure 46. Flash programmer main screen DX-Series LIU Product Manual 69

80 Using the Flash Programmer Using the Firmware Flash Programmer, you can easily upgrade the firmware in the DX-Series LIU. As the Firmware Flash Programmer can support several different types of Omnitronics products, it is therefore necessary to select the proper product type before upgrading the firmware. The standard DX-Series LIU uses a proprietary programming cable supplied by Omnitronics. This cable connects to an available serial COM port on your computer and to the serial connector on the front panel of the DX-Series LIU. Figure 47 shows a wiring diagram of the pin assignments required for the programming cable DB9 - Female (PC) Programming Cable DB9 - Male (LIU) Figure 47. Wiring diagram for firmware programming cable Note The Firmware Flash Programmer (Flash.exe) can be used only to program the original DX-Series LIU via the RS232 serial port on the front panel. To program the newer DX-Series LIU, you must use the built-in web-based configuration interface interface. Upgrading the Firmware Omnitronics may release new versions of the firmware from time to time to add additional features or to resolve issues. Using the supplied Firmware Flash Programmer (Flash.exe) software version 3.0 or newer, you can easily upgrade the firmware in the standard DX-Series LIU device with the latest firmware available. Upgrading the firmware in the standard DX-Series LIU consists of several basic steps: Connect the programming cable Set the DX-Series LIU into programming mode Run the Firmware Flash Programmer Select the DX-Series LIU product type Load the firmware file Program the DX-Series LIU Before you use the Firmware Flash Programmer utility software to upgrade the firmware in the standard DX-Series LIU, you require the following: LIU programming cable (supplied) Firmware Flash Programmer utility software (Flash.exe) version 3.0 or later 70 Programming with the Flash Programmer (Pre-2011)

81 To upgrade the firmware, the DX-Series LIU needs to be placed into programming mode. This is done as part of the firmware upgrade procedure. You can then use the Firmware Flash Programmer utility software to upgrade the firmware. To upgrade the firmware 1 Disconnect power from the DX-Series LIU. 2 Remove the DB25 connector from the rear of the DX-Series LIU. 3 Connect the programming cable from your computer s COM port to the RS232 Serial Port (DB9) connector on the front panel of the DX-Series LIU. 4 Press and hold the button on the front panel, and then apply power to the DX- Series LIU. The DX-Series LIU should enter Programming Mode and the front-panel display should show the following: 5 Release the button. 6 On the Windows Start menu, run the Firmware Flash Programmer (Flash.exe). 7 From the Type dropdown list, select LIU DX64. 8 On the COM Port dropdown list, select the port to which the programming cable is connected. 9 On the File menu, click Open and locate the firmware file to load. The firmware file is identified by a.sx extension. 10 Click Program to start programming the DX-Series LIU with the firmware. The Firmware Flash Programmer shows the progress of the upgrade. When programming is completed, it will show an appropriate message. Warning! Do not remove power to the DX-Series LIU while programming the firmware, otherwise it may cause damage to the product or corrupt the firmware. 11 Disconnect power to DX-Series LIU. 12 Remove the programming cable from the RS232 Serial Port. 13 Reconnect the DB25 connector on the rear of the DX-Series LIU. 14 Reapply power to the DX-Series LIU. The DX-Series LIU should now be upgraded with the new firmware. You can check the version of the firmware on the front-panel LCD when the DX-Series LIU starts up. DX-Series LIU Product Manual 71

82

83 Using the Built-in Menu System (Pre-2011) The DX-Series LIU provides a built-in menu system with an LCD on the front panel. You can use this to view and configure the settings. This section discusses the menu system for LIUs manufactured prior to For the products manufactured from 2011 onwards, refer to Using the Built-in Menu System. This section includes the following topics: Navigating the Menu System Menu Functions on page 75 Navigating the Menu System The menu structure is hierarchical with up to four levels of selection. Figure 48 shows an example of the general structure. Figure 48. Menu structure of original DX-Series LIU The built-in menu system provides easy access to the LIU configuration parameters. Such parameters include audio levels for radio receive and transmit, selcall and DTMF levels, and other miscellaneous settings. Note You can also use the DX64 Configuration and Maintenance Utility (DX64CMU) software to configure the LIU over the network. Figure 49 shows the FUNCTION buttons on the front panel. Pressing the MENU button will cycle through the available topics. Each topic represents a group of related parameters that may be viewed or modified. DX-Series LIU Product Manual 73

84 MENU FUNCTION Figure 49. Menu function buttons Pressing the button enters the item list for the chosen topic. Pressing the button again will cycle through all the available items. An item represents a specific parameter that may be viewed or modified. Pressing the button will advance through each available level. Each level represents a specific action or request. If there is only one level and the item allows parameter modification, then the and buttons change the value of the parameter. If there are two levels, then the button allows value changes at level 1 and both and buttons allow value changes at level 2. Pressing the MENU button navigates back up through the menu levels. The LIU will revert to normal operation after five seconds of no button presses. Note Parameter changes are not saved to non-volatile memory until you navigate back to the item level in the menu hierarchy. Modes of Operation The LIU provides two modes of operation: normal and firmware upgrade. If the LIU is powered up without any buttons depressed, it will enter the normal mode of operation. However, if you depress the button while applying power to the LIU, it will enter the firmware-upgrade mode (see Upgrading the Firmware on page 70). Menu Structure Figure 50 shows the menu structure for normal operation of the original DX-Series LIU product. 74 Using the Built-in Menu System (Pre-2011)

85 MENU BUTTON REPEATEDLY PRESSING THE MENU BUTTON WILL TOGGLE BETWEEN MENU OPTIONS A & B OPTION A OPTION B ADJUST LIU LEVELS PRESS TO SCROLL T HROUGH FU NCTIONS MISCELLANEOUS OPTIONS PRESS TO SCROLL THROUGH FUNCT ION S FUNCTION: FUNCTION: VIEW RX LEVELS SET RX LEVELS SET TX LEVELS SET TX SELCAL SETDTMF LEVEL PRESS TO SCROLL THROUGH C HANNELS SELECT CHANNEL: SET PTT WATCH SET PTT MASK VIEW LIU ID VIEW LIU VERSION SET TRUNK PULSE SET PULSE LEAD SET PULSE WIDTH PRESS TO MAKE CHANGES CHANGE SETTINGS PRESS TO SCROLL THROUGH C HANNELS SELECT CHANNEL: MENU PRESS TO M AKE CHANGES SCROLL FUNCTIONS MENU CHANGE SETTINGS MENU MENU MENU SCROLL FUNCTIONS MENU GO TO MISCELLANEOUS OPTIONS GO TO ADJUST LIU LEVELS Figure 50. Menu structure of the original DX-Series LIU Menu Functions This section discusses the functions available in each menu and how to use those functions to view and change configuration settings of the LIU. Trunk Network Mute Pulse Configuration This information applies to DX64 LIU firmware version 1.15 (and later) which features a mechanism to capture the access-granted tone from a trunk radio. When an operator wishes to access the trunk network they assert PTT, whereupon the local radio will contact the network controller to try to gain access. The network controller will then notify the local radio of the success of its access attempt. The local radio will then issue a unique tone sequence to the operator to signal that the call has been successful (i.e. the radio was granted access to the network). DX-Series LIU Product Manual 75

86 This tone sequence is simply a local alert and consequently there is no M signal generated by the radio (i.e. Mouth/PTT). The M signal is required by the DX64 LIU (on the E input, i.e. Ear/Mute/Busy) in order for it to route audio through the system to the operator(s). Without this signal, the operator(s) will not hear the local radio confirmation that it has gained access to the network. This version (and onwards) of DX-Series LIU firmware introduces a mute pulse that will allow the local radio confirmation alert audio to be routed to the operator(s) by internally generating and then releasing Mute for a brief window of time. Operator PTT Mute (LIU) Lead-In Pulse Radio Confirmation Figure 51. Timing diagram for mute-pulse configuration Figure 51 shows the timing diagram for configuring the mute pulse. The lead-in time, pulse width, and LIU channels on which this behaviour occurs can all be configured. Setting Mute Pulse Mode for a Channel To set the mute pulse mode 1 On the LIU front panel, press the MENU (left-most) button repeatedly until the display shows (menu options will cycle around). 2 Press the middle button repeatedly until the display shows (menu options will cycle around). 3 Press the right-most button. The display should now show. 4 Press the middle button to select the channel to set (pressing repeatedly will continually cycle through the channels 1 to 8). 5 Once the desired channel is selected, press the right-most button. The display should now show (the channel selected in the previous step will be shown as well as its actual state: enabled or disabled). 6 Pressing the middle and/or right-most buttons will toggle the mode for the selected channel between and. 7 Once the desired selection has been made, press the left-most button. This will move back through the menu hierarchy by one level. 76 Using the Built-in Menu System (Pre-2011)

87 8 Repeat steps 3 to 7 for each channel as desired. 9 When complete, press the left-most button three times to back out of the menu hierarchy. This will commit the parameters to non-volatile memory. Setting the Pulse Lead-in Time To set the pulse lead-in time 1 On the LIU front panel, press the MENU (left-most) button repeatedly until the display shows (menu options will cycle around). 2 Press the middle button repeatedly until the display shows (menu options will cycle around). 3 Press the right-most button to enter this menu option. The display should now show. 4 Set the mute pulse lead-in time by pressing the middle button to increment and the right-most button to decrement. You can set the value in steps of 10ms and the value will wrap from 2550ms to 0ms and vice versa. 5 Once the desired lead-in time has been selected, press the left-most button twice to back out of the menu hierarchy. This will commit the value to non-volatile memory. Setting the Pulse Width To set the pulse width 1 On the LIU front panel, press the MENU (left-most) button repeatedly until the display shows (menu options will cycle around). 2 Press the middle button repeatedly until the display shows (menu options will cycle around). 3 Press the right-most button to enter this menu option. The display should now show. 4 Set the mute pulse-width time by pressing the middle button to increment and the right-most button to decrement. You can set the value in steps of 10ms and the value will wrap from 2550ms (i.e. 2.55s) to 0ms and vice versa. 5 Once the desired pulse-width time has been selected, press the left-most button twice to back out of the menu hierarchy. This will commit the value to non-volatile memory. DX-Series LIU Product Manual 77

88 Adjusting LIU Levels View RX Levels individually displays the input level of each LIU audio port. The top line of the LCD display shows approximate decibel graduations, where the left-most line shows 21dB, the middle line 0dB and the right-most line +6dB. The bottom line of the LCD visualizes the dynamic response of the incoming audio with an arrow that points to the right. The length of the arrow varies in accordance with the measured audio level, where the point of the arrow represents the actual level detected. This value cannot be retrieved by the DX64CMU application. Set RX Levels individually sets the digital potentiometer values for each of the incoming LIU audio lines. Each line may be amplified or attenuated as desired with 64 discrete level settings available, giving a range of approximately -17dB to +17dB. Default factory setting is 0dB for all ports. These values can also be read to and written from the DX64CMU application. Set TX Levels individually sets the digital potentiometer values for each of the outgoing LIU audio lines. Each line may be amplified or attenuated as desired with 64 discrete levels available giving a range of approximately 17dB to +17dB. Default factory setting is 0dB for all ports. These values can also be read to and written from the DX64CMU application. Set TX Selcall individually sets the output levels for each of the LIU Selcall processors. Each line may be attenuated as desired with 32 discrete levels available giving a range of approximately 0dB to 40dB. Default factory setting is 0dB for all ports. These values can also be read to and written from the DX64CMU application. Set DTMF Level sets the digital potentiometer value associated with output of the DTMF audio processor. This value may be amplified or attenuated as desired with 64 discrete levels available giving a range of approximately 17dB to +17dB. Default factory setting is 0dB for all ports. This value can also be read to and written from the DX64CMU application. 78 Using the Built-in Menu System (Pre-2011)

89 Miscellaneous Options Set PTT Watch individually sets a countdown timer value for each LIU port, that will clear PTT (if active) on expiration. Set a time from 0 to 1800 seconds (30mins). Each timer is only active if the corresponding port is enabled via the Set PTT Mask option. Default factory setting is 180s for all ports. These timer values can be accessed by the DX64CMU software. Set PTT Mask individually enables or disables audio loop-back of transmit audio on each LIU port. A PTT on an enabled port will cause the transmitted audio to be looped back (intended for normal radio operation). Default factory setting is enabled for all ports. The PTT mask can be accessed by the DX64CMU software. View LIU ID views the physical address of LIU (set via the internal DIP-switch setting). This value cannot be retrieved by the DX64CMU application. View Version views the firmware version of the LIU. This value can be retrieved by the DX64CMU software. Set Trunk Pulse individually enables or disables Trunk Pulse mode on each LIU port. This mode causes the LIU to internally generate a short pulse of the Busy signal on the corresponding (enabled) port to capture confirmation tones from a trunk radio (see the following two options for further configuration of this mode). If enabled, the corresponding PTT Mask port must be disabled to operate correctly. Default factory setting is disabled for all ports. Use DX64CMU to access Trunk Pulse mask. Set Pulse Lead sets the global (i.e. same value for all LIU ports) lead-in timer for the Trunk Pulse mode (see above). This is the time between detecting PTT and generating the Busy pulse (see below). Valid times range from 0 to 2550ms in steps of 10ms. Default factory setting is 100ms. Use DX64CMU to retrieve this value. Set Pulse Width sets the global (i.e. same value for all LIU ports) pulse time for the Trunk Pulse mode (see above). This is the duration of the Busy pulse after the lead-in time has expired. Valid times range from 0 to 2550ms in steps of 10ms. Default factory setting is 500ms. This value can be retrieved by the DX64CMU software. DX-Series LIU Product Manual 79

90

91 Hardware Configuration (Pre-2011) This section discusses the configuration of the hardware links for original DX-Series LIU product manufactured in 2010 and earlier, and includes the following topics: LIU Mainboard Link Settings Bus Connections on page 83 Audio Ports on page 84 Serial Port on page 84 Power Connectors on page 85 Phone Line Interface Connectors on page 85 TDM Interface Switches on page 86 E & M Options on page 86 Transmit and Receive Analog Audio Path on page 93 LIU Mainboard Link Settings The DX-Series LIU mainboard manufactured prior to 2011 (version 1.90 and later) has many links. These links are factory pre-set for LIU functions and should never need changing. However, in case you need to configure the LIU, Table 2 lists the links and the correct settings. DX-Series LIU Product Manual 81

92 Table 2. Link settings on main board Link Setting Link Setting Link Setting LK1 1-2 LK LK31 OFF LK2 OFF LK17 OFF LK32 LK3 OFF LK18 ON LK33 ON LK4 OFF LK19 CH3 E&M options LK LK5 ON LK LK35 ON LK6 CH1 E&M options LK LK36 ON LK7 1-2 LK22 OFF LK37* OFF LK8 1-2 LK LK38 OFF LK9 1-2 CH6 E&M options LK24 ON LK39 CH7 E&M options LK10 OFF LK25 CH4 E&M options LK40 ON LK11 OFF LK LK LK12 ON LK27 OFF LK42 OFF LK13 CH2 E&M options LK28 ON LK43 CH8 E&M options LK LK29 CH5 E&M options LK44 ON LK LK LK * LK37 should be ON for the last LIU on the DX64 bus cable CN4, labeled DX64 BUS, on the TDM interface connects to CN1 on the backplane. This is a one-to-one ribbon cable connection that can connect together up to eight audio bridges in parallel. Ports 1 to 8 on the LIU provide connections for 600Ω, 4-wire audio with E & M control. 12V DC power for the LIU is connected to CN19, labeled "12Vdc". A plug pack connector is also provided. 82 Hardware Configuration (Pre-2011)

93 Bus Connections Table 3 lists the pin assignments for the bus connections. Table 3. Pin assignments for the bus connection DB25 Male IDC (connects to CN1 on backplane) Description 1 0V 2 TDM5 Audio in from Line 1-3 TDM7 Audio in from Line 2-4 TDM8 Audio out to Line 1+ 5 TDM10 Audio out to Line V 7 TDMFSB frame sync 8 CLK4B MHz clock 9 HICHANA High Channel enable 10 WRENA Write enable 11 0V 12 RS485A serial comms RS V 14 TDM4 Audio in from Line TDM6 Audio in from Line V 17 TDM9 Audio out to Line 1-18 TDM11 Audio out to Line 2-19 TDMFSA frame sync 20 CLK4A MHz clock 21 0V 22 HICHANB High Channel enable 23 WRENB Write enable 24 0V 25 RS485B serial comms RS485 DX-Series LIU Product Manual 83

94 Audio Ports Table 4 lists the pins for the eight audio port connectors on the back panel. Table 4. Pin assignments for the port connectors Pin Description 1 PTT a Relay contact common 2 PTT b Link for source voltage 3 TX a Balanced audio out 600W 4 RX a Balanced audio in 600W 5 RX b Balanced audio in 600W 6 TX b Balanced audio out 600W 7 MUTE a Link for source voltage 8 MUTE b Opto-isolator common Serial Port Table 5 lists the pinouts for the DB9 serial port connector on the front panel. This is not strictly an RS232 DTE serial port as pins 1 and 6 are used for RS485 signals. When connecting this port to an RS232 DTE serial port on a computer, you must use a cross-over cable and ensure that pins 1 and 6 are disconnected (for further details, refer to the cable diagram shown in Figure 47 on page 70). Table 5. Pin assignments for DB9 serial port connector Pin Signal Signal Description 1 RS485A Driver Output/Receiver Input 2 RXD Receive Data 3 TXD Transmit Data 4 DTR Data Terminal Ready (Not Connected) 5 GND Signal Ground 6 RS485B Driver Output/Receiver Input 7 RTS Request To Send 8 CTS Clear To Send 9 RI Ring Indicator (Not Connected) 84 Hardware Configuration (Pre-2011)

95 Power Connectors Table 6 lists the pins for the power connectors CN18 and CN19 on the back panel. Table 6. Pin assignments for the power connectors CN18 and CN19 Pin Description 1 +12Vdc to +24Vdc Supply 2 0V Phone Line Interface Connectors Figure 52 shows a connection diagram for a one-to-one cable that connects the output of a Line Interface Unit (A) to the input of a Phone Line Interface (B), and the pin details for the Phone connection (C). 4 Wire + E&M 8 1 Ports 1 to 8 viewed from the rear 1 & 2... PTT Out 3 & 6... Tx Out 4 & 5... Rx In 7 & 8... Mute In Line Interface Unit A B C 4 Wire + E&M 8 1 Ports 1 to 8 (rear view) 1 & 2... Mute In 3 & 6... Rx In 4 & 5... Tx Out 7 & 8... PTT Out Phone Line Interface Figure 52. Connection diagram for phone line interface LINE 6 1 Ports 1 to 8 (rear view) 1 & 2... Not Used 3 & 4... Line 5 & 6... Not Used Phone Line Interface Figure 53 shows the link settings for each of the eight ports located on the back panel. Figure 54 shows the link settings for the Phone Line Interface (PLI) LIU Ports 1-8 D C B A Figure 53. Link settings for ports 1 to 8 PLI Links PLI Links Figure 54. Link settings for Phone Line Interface Note Links 6 to 9 and links 10 to 13 for the PLI are located next to relay 1 and relay 2 on the PCB. DX-Series LIU Product Manual 85

96 TDM Interface Switches Table 7 lists the switches used for the TDM interface and the default settings. Table 7. Switches used for the TDM interface Switch 1 Default Setting Function 1 Bit 0 of card address 2 Bit 1 of card address 3 Bit 2 of card address 4 Bit 3 of card address 5 Off Reserved 6 Off Reserved 7 Off Reserved 8 Off Reserved Note The first LIU to be installed in a DX64 Radio Management System should be assigned the address of 1. A second LIU should be assigned the address of 2 and so on. E & M Options The E-lead (from Ear requiring an input) and the M-lead (from Mouth providing an output), each have four available set-up options: contact, voltage, switched ground, and switched power. Figure 55. E & M header The set-up options are link-selectable. To access the links, you must first remove the LIU rear panel and then remove the port cover from the rear of the enclosure. Each port has a 4-way by 3-way right-angled header comprised of pins 1, 2, & 3 and links D, C, B & A, as shown Figure 55. Note Pins 1, 2, and 3 are indicated as shown. Links D, C, B, and A are printed on the rear panel of the enclosure. 86 Hardware Configuration (Pre-2011)

97 Pin Connections for E & M Cable Table 8 lists the pin connections for the 8-way cables used for connecting the external E&M equipment to the LIU. The end of the cable that connects to the LIU is already terminated with a connector. The other end needs to be terminated to suit your equipment you can use the pin connections in this table to terminate the cables accordingly. Table 8. Pin connections for E & M cables Label Description Level Pins Rx Transformer isolated input -20dBm to +4dBm 4 & 5 Pin 4 = RxA; Pin 5 = RxB Tx Transformer isolated output -20dBm to +4dBm 3 & 6 Pin 3 = TxA; Pin 6 = TxB Voltage-free relay contacts 500mA 1 & 2 Bipolar (default) M (PTT) (see link options) +10V relay contact closure Switched Ground 20mA External +30V (max) 1 & 2 1 & 2 Pin 1= +10V; Pin 2 = 0V Pin 1 = Power; Pin 2 = Open Switched Power 20mA 1 & 2 Pin 1 = Load; Pin 2 = Open Opto-isloated contact 2mA (max) 7 & 8 Pin 7 = 0V; Pin 8 = +10V E (Mute) (see link options) Opto-isloated voltage Switched external ground External +5V to +30V 2mA (max) 7 & 8 7 & 8 Bipolar (default) Pin 7 = Open; Pin 8 = 2mA Switched external power External +5V to +30V 7 & 8 Pin 7 = Open; Pin 8 = Ext Gnd The diagrams on the following pages illustrate the various E&M options available for connecting external equipment to the LIU. Choose one E (Mute) option and one M (PTT) option. DX-Series LIU Product Manual 87

98 E-Lead (Busy) Input Options (using relay contacts) The options available for the E-Lead (Busy) inputs are configured using links A and B. Figure 56 shows a configuration diagram with link settings for each option. Individual options may be configured for each available port. Figure 56. Configuration options for E-Lead (Busy) Input using relay contacts Warning! Incorrect link settings can connect an external supply to ground causing damage to the equpiment. 88 Hardware Configuration (Pre-2011)

99 M-Lead (PTT) Output Options (using relay contacts) The options available for the M-Lead (PTT) outputs are configured using Link C and Link D. Figure 57 shows a configuration diagram with link settings for each option. Individual options may be configured for each available port. Figure 57. Configuration options for M-Lead (PTT) Output using relay contacts Warning! Incorrect link settings can connect an external supply to ground causing damage to the equpiment. DX-Series LIU Product Manual 89

100 E-Lead (Busy) Input Options (components) The options available for the E-Lead (Busy) inputs are configured using Link A and Link B. Figure 58 shows a configuration diagram with link settings for each option. Individual options may be configured for each available port. Figure 58. Configuration options for E-Lead (Busy) Input using components Warning! Incorrect link settings can connect an external supply to ground causing damage to the equpiment. 90 Hardware Configuration (Pre-2011)

101 M-Lead (PTT) Output Options (components) The options available for the M-Lead (PTT) outputs are configured using Link C and Link D. Figure 59 shows a configuration diagram with link settings for each option. Individual options may be configured for each available port. Figure 59. M-Lead configuration options using components Warning! Incorrect link settings can connect an external supply to ground causing damage to the equpiment. DX-Series LIU Product Manual 91

102 E & M Options (Connecting to +5V Supply) In the event that a connection from the DX64 Line Interface Unit to an open collector configuration (active low) with a +5 volt supply is required, the configuration shown in Figure 60 may be used. Figure 60. Connection diagram for +5V supply 92 Hardware Configuration (Pre-2011)

103 Transmit and Receive Analog Audio Path Figure 61 shows a block diagram of the analog audio paths for both transmit and receive audio for the original DX-Series LIU rev 2.00 (619/15 rev 2.00). Audio TX RX LK (CH 1&2 only) LIU TRANSMIT & RECEIVE ANALOG AUDIO PATH (619/15 rev 2.0) Tone Gen TXn TXn SIGTXn Mixer & Switch HiTone LoTone RX_OUTn TDM_INn V23 DTMF JL3 RXIN_MIX LK (CH 1&2 only) MT8880 MSM7512 RXn FX828 SELCAL_IN (CH 8 only) RXAudn Notch Filter DTMF_IN RX_INn VOXAUDn V23_IN Switch Switch (1:1) LK LK RX_INn LK VOXDCn TXn (CH 1&2 only) LK Comparator TDM_INn SIGTDMn CN4 Monitor CN2 TDM SIGTDMn Figure 61. Block diagram of analog audio path for pre-2011 versions of the LIU DX-Series LIU Product Manual 93

104

105 Diagnostics and Recovery with the Serial Monitor This section describes how to use the built-in Serial Monitor with the USB interface on the front of the device to perform basic configuration and troubleshooting, and includes the following topics: About the Serial Monitor Installing the USB Device Drivers on page 96 Connecting to the DX-Series LIU on page 96 Using the Serial Monitor on page 97 Resetting to Factory Default Settings on page 100 About the Serial Monitor You can perform basic configuration and troubleshooting of the DX-Series LIU (manufactured from 2011 onwards) using the USB interface and terminal emulation software. However, it is recommended that you use the web-based configuration interface to configure the settings in the DX-Series LIU; for older LIUs, you should use the DX64 Configuration and Maintenance Utility (DX64CMU). You can also use the built-in menu system with the LCD to configure both types of LIU. Note The Serial Monitor is intended only for technicians or Omnitronics Support Engineers to assist in diagnosing and resolving problems. You should not use the Serial Monitor to configure the LIU: you should use the built-in configuration interface instead. Before using the LIU for the first time, you must configure the basic network settings to suit your particular network environment. The easiest way to do this is to use the Serial Monitor with serial communications software such as TeraTerm this popular software is freely downloadable from the Internet; however, you can use whatever serial communications software you like. Before you can configure the basic network settings, you must set up TeraTerm to communicate with the Serial Monitor (see Connecting to the DX-Series LIU on page 96). DX-Series LIU Product Manual 95

106 Installing the USB Device Drivers The DX-Series LIU provides a USB 2.0 compliant interface port on the front panel. This port uses a Type B male USB connector that interfaces to a USB port on your computer. The USB to serial data conversion is done by USB drivers provided by the manufacturer, FTDI Chip, which you can download from the manufacturer s website at The drivers should also be available on the supplied product media (CD/DVD/USB stick). Connecting to the DX-Series LIU This section describes how to set up TeraTerm for use with the built-in Serial Monitor (the same steps should apply to other serial software). The Serial Monitor uses the USB port on the front of the device to communicate with serial communications software, such as TeraTerm. To connect to the Serial Monitor 1 Connect the USB cable from your computer to the device. 2 Apply power to the device. 3 Run TeraTerm. 4 On the Serial port setup dialog, select the port and then set the values: Baud rate: 19200, Data: 8, Parity: None, Stop: 1 bit, and Flow control: None. 5 Click OK to close the dialog. 6 Press Enter on the keyboard. You should now be connected to the Serial Monitor, and you should see the liu $ command prompt, as shown in the screenshot below. You can now use the Serial Monitor to issue commands to the device, as discussed in the section Using the Serial Monitor on page Diagnostics and Recovery with the Serial Monitor

107 Using the Serial Monitor The Serial Monitor is used to perform basic configuration and diagnostics of the LIU device. You can also set the basic network settings, such as IP address, gateway address, and subnet mask to establish network connectivity with the device. You can also reset the device to factory-default settings (see Resetting to Factory Default Settings on page 100). Using the Serial Monitor, you can issue commands to: Display the current configuration Change the basic network settings Reset to factory-default settings Send a network ping to test the network connectivity Perform diagnostic troubleshooting Before you using the Serial Monitor, you should set up your serial communications software (see Connecting to the DX-Series LIU on page 96). Serial Monitor Commands The Serial Monitor interface provides many commands that allow you to configure and test the operation of the DX-Series LIU. Most of the commands are used for software debugging and testing, however, some of the commands allow you to configure the basic network settings to establish network connectivity with the LIU. The common commands used for basic configuration are listed below. Commands aconfig defaults set ipaddress set dhcp ping reset Description Application Configuration command displays the current application configuration settings. Usage: aconfig < Enter> Resets all configuration values back to factor default settings. Usage: defaults <new address> < Enter> Sets the IP address. The format of the address is n.n.n.n where (n) can be any number between 0 and 255. Note: this will have no effect if the device is configured to use DHCP to automatically determine its IP address. Usage: set ipaddress<new address>< Enter> Enables or disabled dhcp mode. In DHCP mode the IP address of the device is automatically allocated by a server. Usage: set dhcp 0<Enter> to disable DHCP mode or set dhcp 1<Enter> to enable DHCP mode. Sends a special echo message to another machine on the network to test communications. Usage: ping <new address>< Enter> Causes the device to reset. Usage: reset<enter> DX-Series LIU Product Manual 97

108 Note The Serial Monitor provides many commands in addition to those listed in the table above. However, the additional commands are intended only for device testing and debugging, and are not intended for initial configuration or for use in a live radio network. Entering Commands Using TeraTerm, or similar terminal emulation software, you can enter commands at the command prompt liu $ by typing the command name followed by any required command argument(s), and ending the command by pressing the Enter key some commands allow you to specify a command argument(s) to provide additional information. Note If you set the LIU device on a different IP network or subnet to the computer used to access it, you may not be able to access the configuration interface due to incompatible network settings. To see a list of the available commands, enter help at the command prompt. Listing 1 shows the output from the help command. Listing 1. Output from the help command liu $ help config - Show the system configuration. pause - Monitor goes to "sleep" for specified ticks (default is 1). Monitor will resume at end of period or if explicitly awakened pause [ticks] continue - Put the monitor to sleep waiting for an explicit wakeup from the program running. go - Alias for 'continue' extension - Display information about specified extensions. Default is to display information about all extensions on this node. extension [id [id...] ] task - Display information about the specified tasks. Default is to display information about all tasks on this node. task [id [id...] ] queue - Display information about the specified message queues. Default is to display information about all queues on this node. queue [id [id... ] ] object - Display information about specified RTEMS objects. Object id's must include 'type' information. (which may normally be defaulted) object [id [id...] ] driver - Display the RTEMS device driver table. driver [ major [ major... ] ] exit - Invoke 'rtems_fatal_error_occurred' with 'status' (default is RTEMS_SUCCESSFUL) exit [status] 98 Diagnostics and Recovery with the Serial Monitor

109 Listing 1 (continued) chdir pwd cat rte suspend resume cpu clear stack mem debug aconfig defaults ping set transmit play rtp-test tone-transmit - Change directory, cd <directory> - display present working directory, pwd - display contents of file, cat <filename> - Display run time error table - Suspend a task, suspend <task> - Resume a task, resume <task> - Display CPU usage - Reset CPU Usage statistics - Display stack usage - Display memory usage - Set level of debug output - Display the current application Configuration - Reset application configuration to default values - Send a ping/test icmp message, ping <ip address> - set a configuration value - transmit a sound file. transmit <filename> - play a sound file locally. play <channel> <filename> - transmit a sound file, repeatedly with remote PTT. rtp-test <filename> - transmit a tone to network channel, tone-transmit <channel> [ frequency ] [ amplitude ] tone-play - locally output an audio tone, tone-play <channel> [frequency ] [ amplitude ] ptt - Toggles a PTT output manufacture-test - Puts LIU-IP into manufacturing test mode report dtmf selcal detect-tone help summary. ifstats ipstats routes mbufs icmp udp tcp reset tod dm pm fatal quit fm hex. - Print a diagnostic report showing internal debug information - send a DTMF string - send a SELCAL string - Enable a tone detector for a channel and frequency - Provide information about commands. Default is show basic command help [ command [ command ] ] - Show the interface stats. - Show the IP stats. - Show the inet routes. - Show the mbuf stats. - Show the ICMP stats. - Show the UDP stats. - Show the TCP stats. - Reset the target. - Print the current time. - Dump memory, dm <b/w/l> <addr>, and use '0x' for hex. - Patch memory, pm <b/w/l> <addr> <data>, and use '0x' for hex. - 'exit' with fatal error; default error is RTEMS_TASK_EXITTED fatal [status] - Alias for 'exit' - Fill memory, fm <b/w/l> <saddr> <eaddr> <data>, and use '0x' for liu $ DX-Series LIU Product Manual 99

110 Listing 1 (continued) The end address (eaddr) can be a value or have a '+' to indicate a length. The length is always in bytes. eg fm l 0x8000 0xa000 0x fm l 0x x2000 0x sm - Search memory, sm <b/w/l> <saddr> [<eaddr>] <pattern>, and use '0x'for hex. The end address (eaddr) can be a value or have a '+' toindicate a length. The length is always in bytes and a defaultof eg sm l 0x8000 0xa000 0x sm l 0x x2000 0x eg sm l 0x8000 0x , uses the last used length. ls - s Files, ls [directory] Resetting to Factory Default Settings You may want to use the Serial Monitor to reset the DX-Series LIU device to factorydefault settings. You can do this by entering the defaults command followed by the reset command. Table 9 lists the factory default settings. Note You might lose network connectivity with the LIU after resetting to factory defaults. In this case, you can use the Serial Monitor to reestablish network connectivity by setting the basic network settings to match your network. Table 9. Factory default settings Feature Setting Default Device login Login URL User name Login password (casesensitive) omni Local network (LAN) IP address liu Subnet mask (network mask) Gateway address DHCP server Disabled LIU LIU Address 1 (or DIP switch SW1) DX64 Level Legacy Mode Disabled 100 Diagnostics and Recovery with the Serial Monitor

111 Connecting to the DX-Series LIU This chapter contains step-by-step instructions for connecting the DX-Series LIU to your network and to get it up and running quickly, and includes the following sections: Connecting to the Network Connecting with Windows on page 102 Connecting with Mac OS X or Linux on page 107 Connecting to the Network All settings for the DX-Series LIU can be configured using the built-in web server that provides a configuration and management interface call the configuration interface. However, before you can access this web-based configuration interface, you need to ensure that your computer and the DX-Series LIU device are both using IP addresses that are compatible. If the IP address of your computer does not have a similar address, it is highly unlikely that it will communicate with a DX-Series LIU that is using the factory-set address. All DX-Series LIU devices leave the factory configured with an IP address of If the IP address of your computer does not have a similar address (i.e., an IP address starting with xxx), you will need to temporarily change the IP address of your computer before it can connect to the DX-Series LIU by following the steps below for your operating system. The recommended method of connecting the DX-Series LIU and a computer via an Ethernet network is to use an Ethernet switch or router. However, if such a switch or router is not available, you may connect the computer directly to the DX-Series LIU using an Ethernet network cable you do not need to use a cross-over cable as the Ethernet port is auto-mdix compatible. The Ethernet port is located on the front panel of the DX-Series LIU. When connecting the Ethernet cable from the DX-Series LIU to the Ethernet switch, the Link indicator on the front panel will illuminate. If this indicator does not illuminate, then you may have a problem with the cabling; and the computer will not be able to communicate with the DX-Series LIU until the problem is corrected. This indicator will flash whenever the DX-Series LIU detects network activity. DX-Series LIU Product Manual 101

112 Connecting with Windows This section contains basic information to help get your DX-Series LIU up and running using Microsoft Windows 7 (this will be similar for Windows 8/8.1/10). All settings for the DX-Series LIU can be set using a web-based configuration interface. Before you can access this configuration interface, you must ensure your computer and the DX-Series LIU device are on the same subnet or using compatible IP addresses. All DX-Series LIU devices leave the factory configured with an IP address of If the IP address of your computer does not have a compatible address (that is, an IP address starting with x), you will need to temporarily change the IP address of your computer before it can connect to the DX-Series LIU by following the steps below. Note To change the IP address of your computer, you must be logged in with a user account that has administrator priviledges. Step 1: Determine the IP address of your computer You can determine the address of your computer by following the procedure below. To determine the IP address of your computer 1 On the Start menu, click Control Panel. 2 Click Network and Internet. 102 Connecting to the DX-Series LIU

113 3 On the Network and Internet window, click Network and Sharing Center. 4 Under View your active networks, click Local Area Connection to open the Local Area Connection Status dialog. 5 Click Details to display the Network Connection Details dialog. DX-Series LIU Product Manual 103

114 The Network Connection Details shows the various settings for the network. The settings of interest are the IPv4 IP Address, the IPv4 Subnet Mask and the IPv4 Default Gateway. 6 Record the details for IPv4 IP Address, IPv4 Subnet Mask, and IPv4 Default Gateway from the Network Connection Details, then and click Close. Step 2: Change the IP settings of your computer Before you can connect to the DX-Series LIU, you need to temporarily configure the IP settings of your computer to match the IP settings of the DX-Series LIU. If the IPv4 Address starts with the numbers and the IPv4 Subnet Mask is (see Step 1: Determine the IP address of your computer on page 102), your computer is compatible with, and it will be able to talk to, the DX-Series LIU without any changes to its IP settings. Skip to Step 3: Connect the DX-Series LIU to the computer. In this case, you can skip to Step 3: Connect the DX-Series LIU to the computer on page 106. However, if the IPv4 Address of your computer does not start with the numbers , then it will be necessary to temporarily change the IP address of your computer. Note Ensure you record the current IP settings so that you can restore your computer to its original configuration after you have finished configuring the DX-Series LIU device. 104 Connecting to the DX-Series LIU

115 To change the IP settings on your computer 1 In the Local Area Connection Status dialog, click Properties. The Local Area Connection Properties dialog is displayed. 2 In the This connection uses the following items list, select Internet Protocol Version 4(TCP/IPv4), and then click Properties. The Internet Protocol Version 4 (TCP/IPv4) Properties dialog is displayed. 3 Under the General tab, select Use the following IP address and enter the following details: IP address is the static IP address you want to assign to your computer. Subnet mask is the subnet mask used by your router. Default gateway is the IP address of the default gateway. 4 Click OK. The changes will take effect immediately; it should not be necessary to restart your computer. DX-Series LIU Product Manual 105

116 Step 3: Connect the DX-Series LIU to the computer This step connects the DX-Series LIU to the computer via an Ethernet network. The recommended method of doing this is to use an Ethernet switch or router. However, if such a switch or router is not available, you may connect the computer directly to the DX-Series LIU using an Ethernet network cable. Note If you are using a switch or router, connect the DX-Series LIU to the switch or router using an Ethernet network cable; otherwise connect the DX-Series LIU directly to the computer using an Ethernet network cable. You do not need to use a cross-over cable as the Ethernet port is auto-mdix compatible. When connecting the Ethernet cable from the DX-Series LIU to the Ethernet switch, the Link indicator will illuminate. If this indicator does not illuminate, then you may have a problem with the cabling; and the computer will not be able to communicate with the DX-Series LIU until the problem is corrected. Step 4: Configure the DX-Series LIU network settings This step involves using the web-based configuration interface to configure the network settings of the DX-Series LIU. To configure the DX-Series LIU network settings 1 Start your web browser and type the IP address ( ) of the DX-Series LIU device in the address bar. Note All DX-Series LIU devices leave the factory configured with an IP address of The login page is displayed. 106 Connecting to the DX-Series LIU

117 2 Configure the network settings of the DX-Series LIU to match the network settings of your computer network. Note For details on how to configure the network settings of the LIU, refer to Configuring the TCP/IP Network Settings on page 33. Step 5: Restore the network settings of the computer Once you have configured the network settings of the DX-Series LIU device, you can restore the network settings of your computer back to the original settings. Note If you did not need to change the network settings of your computer, you do not need to perform this step. Repeat Step 2: Change the IP settings of your computer on page 104 to restore the network settings of your computer back to its original settings that you recorded in Step 1: Determine the IP address of your computer on page 102. This time, however, you ll change the IPv4 address, IPv4 Subnet mask, and the IPv4 Default gateway to the original settings. Congratulations! You have now configured the DX-Series LIU to communicate on your network, and you should now be able to connect to the DX-Series LIU using the original network settings of your computer. Connecting with Mac OS X or Linux For other operating systems, the same basic steps are necessary: change the computers IP address to one in the sub-net, then access the DX-Series LIU web-based configuration interface to change its IP address, and then save the configuration and restart. DX-Series LIU Product Manual 107

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119 Glossary Refer to the list below for DX-Series LIU terms and definitions. Adaptive DPCM (ADPCM) Advanced Encryption Standard (AES) Class A, B and C Addresses Class A Class B Class C A variant of DPCM that varies the size of the quantization step, to allow further reduction of the required bandwidth for a given signal-to-noise ratio (SNR or S/N). Also known as Rijndael and is a block cipher adopted as an encryption standard by the U.S. government. It has been analyzed extensively and is now used worldwide. IP or Internet addresses can be grouped into 3 classes: Class A, B and C. The different classes allow for more or less computers on a network. The value of the first number in the IP address determines which class the address belongs to and how many computers are allowed on that network. Addresses in the range: Addresses in this range are used as global addresses on the Internet, and are usually allocated by a global registry. Addresses in the range: Addresses in this range allow for up to hosts on a network and are typically used for large organizations. Addresses in the range: Addresses in this range allow for up to 254 hosts on a network and are typically used for LANs. In addition certain address ranges are reserved for private use and are normally those that an organisation will use for its internal networks. These private use network addresses are: , , Note: Each of the Class A, B and C address ranges shown above provides a private use set of addresses. Typically, small LANs will use addresses in the range. DX-Series LIU Product Manual 109

120 Codec COR/COS Data Encryption Standard (DES) Differential (or Delta) Pulse-Code Modulation (DPCM) Domain Name System (DNS) Dynamic Host Configuration Protocol (DHCP) DTMF A device or program capable of performing encoding and decoding on a digital data stream or signal. The word codec may be a combination of any of the following: Compressor- Decompressor, Coder-Decoder, or Compression- Decompression. Codecs (in the modern, software sense) encode a stream or signal for transmission, storage or encryption and decode it so that it is in a format suitable for viewing or for radio. The codecs used in the DX-Series LIU are audio codecs and provide data compression to decrease the amount of bandwidth required to transmit the audio data. Refers to Carrier Operated Relay/Carrier Operated Squelch and is used in the same way that Mute is used. A block cipher with a key length of 56 bits. It is the least secure of the algorithms supported because it uses a short key. encodes the PCM values as differences between the current and the previous value. For audio this type of encoding reduces the number of bits required per sample by about 25% compared to PCM. Stores and associates various sorts of information with socalled domain names; most importantly, it serves as the 'phone book' for the Internet: it translates human-readable computer hostnames, e.g. omnitronics.com.au, into the IP addresses that networking equipment needs for delivering information. It also stores other information such as the list of mail exchange servers that accept for a given domain. In providing a worldwide keyword-based redirection service, DNS is an essential component of contemporary Internet use. A set of rules used by communications devices such as a computer router or network adapter to allow the device to request and obtain an IP address from a server which has a list of addresses available for assignment. DHCP is a protocol used by networked computers (clients) to obtain IP addresses and other parameters such as the default gateway, subnet mask and IP addresses of DNS servers from a DHCP server. It facilitates access to a network because these settings would otherwise have to be made manually for the client to participate in the network. The DHCP server ensures that all IP addresses are unique, e.g., no IP address is assigned to a second client while the first client's assignment is valid (its lease has not expired). Thus IP address pool management is done by the server and not by a human network administrator. Dual Tone Multi-Frequency. 110 Glossary

121 Encryption FIFS FSK Gateway GSM The process of obscuring information to make it unreadable without special knowledge. First In First Served. Frequency Shift Keying. A default gateway is used by a host when an IP packet's destination address belongs to some place outside the local subnet (thus requiring more than one hop of Ethernet communication). The default gateway address is usually an interface belonging to the LAN's border router or firewall. The first digital speech coding standard used in GSM (Global System for Mobile Communications) digital mobile phone system. The bit rate of the codec is 13kbps. G.711 This is an ITU-T standard for audio companding. It is primarily used in telephony. G.711 is a standard that represents 8 bit compressed pulse code modulation (PCM) samples for signals of voice frequencies, sampled at the rate of 8000 samples per second. A G.711 encoder will create a 64kbps bit-stream. There are two main algorithms defined in the standard, mu-law algorithm (used in North America & Japan) and a-law algorithm (used in Europe and the rest of the world). Both are logarithmic, but the later a-law was specifically designed to be simpler for a computer to process. The standard also defines a sequence of repeating code values which defines the power level of 0dB. G.726 G.726 is ITU-T speech codec operating at bit rates of 16-40kbps. The most commonly used mode is 32kbps, since this is half of the rate of G.711, thus increasing the usable network capacity by 100%. G.726 is based on ADPCM technology. HTML Internet Protocol (IP) Jitter Buffer Short for HyperText Markup Language, is the predominant markup language for the creation of web pages It provides a means to describe the structure of text-based information in a document. HTML is written in the form of labels (known as tags), surrounded by angle brackets < and >. This is a data-oriented protocol used by source and destination hosts for communicating data across a packetswitched network such as the internet. Used to counter jitter introduced by packet networks so that a continuous play-out of audio (or video) transmitted over the network can be assured. The maximum jitter that can be countered by a de-jitter buffer is equal to the buffering delay introduced before starting the play-out of the media-stream. DX-Series LIU Product Manual 111

122 Mean Opinion Score (MOS) Multicast Network Address Translation (NAT) Netmask Pulse-Coded Modulation (PCM) Real Time Protocol (RTP) Provides a numerical measure of the quality of human speech at the destination end of the circuit. The scheme uses subjective tests (opinionated scores) that are mathematically averaged to obtain a quantitative indicator of the system performance. A protocol for efficiently sending to multiple receivers at the same time over TCP/IP networks, by employing a multicast address. Traditional techniques for sending IP packets include Unicasting and Broadcasting. Unicast transmissions are pointto-point only. If you want to send a packet to ten different destination devices then you must transmit ten copies of the same packet. This floods the network with unnecessary traffic. Broadcast transmissions overcome this problem by sending just one copy of a packet (i.e. point to multi-point). However, broadcast transmissions cannot easily traverse a WAN and they end up being processed by all devices on a network, regardless of whether the device needs the packetized data or not. Multicasting overcomes these problems. Using multicasting, the IPR110Plus sends one copy of a packet to a group of receivers that want to receive it. Involves re-writing the source and/or destination addresses of IP packets as they pass through a router or firewall. Most systems using NAT do so in order to enable multiple hosts on a private network to access the Internet using a single public IP address. In a typical configuration, a local network uses one of the designated private IP address sub-nets (such as x.x or 10.x.x.x), and a router on that network has a private address (such as ) in that address space. The router is also connected to the Internet with a single public address (known as overloaded NAT) or multiple public addresses assigned by an ISP. A network mask, also known as a subnet mask, netmask or address mask, is a bit mask used to show how much of an IP address identifies the sub network the host is on and how much identifies the host. A digital representation of an analog signal where the magnitude of the signal is sampled regularly at uniform intervals and then quantized. Defines a standardised packet format for delivering audio and video over the Internet. It can be used in both multicast and unicast applications. It is built on top of User Datagram Protocol. 112 Glossary

123 Simple Network Management Protocol (SNMP) Side-tone Transmission Control Protocol (TCP) Time To Live (TTL) Unicast User Datagram Protocol (UDP) Voice Operated Switch (VOX) is the network management protocol used almost exclusively in TCP/IP networks. SNMP provides a means to monitor and control network devices, and to manage configurations, collection of statistics, performance and security. Sound that is picked up by the telephone's mouthpiece and introduced (at low level) into the earpiece of the same handset, acting as feedback. Side-tone provides users with confidence that the handset is actually working. TCP is one of the core protocols of the Internet protocol suite. Using TCP, programs on networked computers can create connections to one another, over which they can send data. The protocol guarantees that data sent by one end-point will be received in the same order by the other, and without any pieces missing. This determines the number of network routers that will pass on the data packets from this unit. This value limits how far the message will be sent. Typically as a router passes on a data packet, it will decrease the TTL information in the data packet, once the TTL reaches zero, the message will no longer get forwarded. The sending of information packets to a single destination. UDP is one of the core protocols of the Internet protocol suite. Using UDP, programs on networked computers can send short messages known as Datagram to one another. UDP does not provide the reliability and ordering guarantees that TCP does; Datagram may arrive out of order or go missing without notice. However, as a result, UDP is faster and more efficient for many light weight or time-sensitive purposes. VOX is a switch that operates when sound over a certain threshold is detected. It is usually used to turn on a transmitter when someone speaks and turn it off when they stop speaking. It is used instead of a push-to-talk button. DX-Series LIU Product Manual 113

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125 Index A analog audio paths about, 93 block diagram, 93 audio ports, pin assignments, 84 B backlight. See LCD Backup/Restore menu, 40 basic network settings. See network settings built-in menu system. See menu system bus connections, 83 C Change Password page, advanced settings, 38 password changing, 38 saving, 40 user accounts limited, 39 supervisor, 38 technician, 38 command prompt. See Serial Monitor configuration backing up, 30, 31, 41, 57 backup and restore, changing, 11 current status, 27 device network name, 34 DHCP server, using, 34 loading, 7 network settings, 33 resetting to defaults, 20, 30, 31 restoring, 30, 42 saving, 28, 29, 31 configuration and diagnostics tools, 3 configuration interface about, 21, 101 accessing, 24, 101, 102, 107 Backup and Restore page, 30, 40 browser compatability, 21 Change Password page, 37 configuration status area, 22, 27 control buttons, 27 Exit button, 31 exiting, 25, 31 logging in, 24, 106 network settings, 106 Network Settings page, 33 password, 37 Reset to Defaults button, 27 Restart buitton, 31 Restart button, 27, 29 Save button, 27, 28, 31 status message area, 27 switching modes, 25 system status, 31 System Status page, 31 system version information, 32 Undo button, 27 user interface, 22 configuration status area, 27 configuration tools, comparison of, 3 D DHCP server local addressing, 36 using, 36 diagnostics, 53 Display IP Address setting, 15 DTMF level. See LIU levels DTMF transmit level, 45 DX64CMU, 21, 73, 78, 79 DX-Series LIU. See Line Interface Unit (LIU) E E & M DX-Series LIU Product Manual 115

126 cable, pin assignments, 87 configuration options, E-lead (Busy) input options, 66, 88, 90 M-lead (PTT) output options, 67, 89, 91 options, 86 E & M Configuration page, Busy input control, 51 ports configuring, 50 contact option, 50 controlling, 51 voltage option, 50 PTT output control, 51 warning message, 51 edit mode about, 12 selecting, 11, 17 setting accepting, 17 blinking, 18 changing, 17 saving, 17 F features hardware, 2 overview, 2 software, 3 firmware file extension of, 58 mute pulse, 76 upgrading, 20, 53, 58, 70, 71 version, displaying, 7, 57 Firmware Upgrade page, accessing, 57 firmware file extension of, 58 file, selecting, 58 upgrading, 58 version of, displaying, 57 Firmware Upload menu, 70 Flash programmer, 70 about, 70 firmware, upgrading, 70 programming cable, 70 programming mode, 71 requirements, 70 FUNCTION buttons, 73 L LCD about, 7 backlight, 12, 19 normal mode, 12 settings, displaying, 13 startup screens, 7 Levels Configuration page, DTMF transmit level, 45 E & M ports, 45 receive input, 45 selcall transmit, 45 transmit output, 45 other levels, 47 Other tab, 45 port levels, 46 limited user account about, 39 enabling, 39 logging in, 26 Line Interface Unit (LIU) about, 1 address changing, 18 DIP switches, 18 assigned address of, 14 auxiliary I/O, 3 back view, 1 configuration changes to, 19 network settings, 34 pre-2011 product, 5 configuration interface about, 21 configuring, 101 methods of, 3 connecting to, 22, 101 default address of, 18, 22, 24, 102 diagnostics, 3 discovering, 22 display, 3 Ethernet port, 101 features, 2 3 hardware, 2 overview, Index

127 software, 3 front view, 1 functional overview, 3 logging in, user accounts, 23 Mac OS X or Linux, 107 multi-function display, 7 operation about, 12 edit mode, 12, 17 menu mode, 12, 13 modes of, 12 normal mode, 12 pre-2011 product about, 81 block diagram, 93 links, 81 resetting to defaults, 20, 100 restarting, 29, 31, 37, 58 startup seqeuence, 7 USB interface, 95 Windows 7, 102 LINK indicator, 101 link settings, 81 LIU. See Line Interface Unit (LIU) LIU Address setting changing, 18, 19 displaying, 14 LIU Configuration page about, 44 LIU options, 44 device address, 44 DX64 level legacy mode, 44 LIU levels adjusting, 78 compatability mode, 44 DTMF, 78 RX levels setting, 78 viewing, 78 TX Levels setting, 78 TX selcall, 78 M MENU button, 1, 5 backlight, 12, 19 functions, 7 location of, 7 menu modes about, 19 changing, 13 press and hold, 17 pressing, 74 rotating, 11, 17, 19 summary of operation, 11, 19 using, 11, 12, 13, 73 menu functions, LIU levels, adjusting, 78 mute pulse configuration, 75 timing diagram, 76 mute pulsed mode, 76 pulse lead-in time, 77 pulse width, 77 trunk network, 75 menu mode, 12, 13 about, 23 exiting, 13 selecting, 19 using, 8 menu system, 10 about, 7, 8, 73 functions, 75 modes about, 13 changing, 13 navigating, 7, 11, 15, 19, 73 structure, 73 using, 3, 11, 18, 22, 73 miscellaneous options set PTT mask, 79 set PTT watch, 79 set pulse lead, 79 set pulse width, 79 set trunk pulse, 79 view LIU identity, 79 view version, 79 M-Lead (PTT) output options, 67 modes of operation, 12, edit mode about, 12 selecting, 11, 17 setting, changing, 17 menu mode, 13, 19 normal mode, 12 programming mode, 71 DX-Series LIU Product Manual 117

128 multi-function display, 7 multi-level menu system. See menu system N network configuration, advanced settings, 35 basic settings, 34 DHCP server, using, 36 settings about, 34 displaying, 15 gateway address, 35 netmask, 34 saving, 36 static IP address, 34 Network Configuration page about, 22 selecting, 22 Network menu, 33 network settings basic, 95, 96 network settings, saving, 31 normal mode, 7, 12 O operation about, 12 edit mode, 12 menu mode, 12 modes of, 12 normal mode, 12 P password. See Change Password page phone line interface connectors, 85 ports activity, 7 changing state, 7 power connectors, pin assignments, 85 programming mode. See Flash programmer R Radio Diagnostics page, accessing, 53 diagnostic tools, 53 parameters audio loopback, 54 DTMF, sending, 55 DTMF/selcall transmit sequence, 54 local push-to-talk, 54 selcall, sending, 55 test tone, playing, 54 problems, diagnosing, 53 resetting to defaults. See configuration RX levels. See LIU Levels S Save button. See configuration interface selcall. See selective calling SELCALL/Timing page, PTT guard timers, 48 selcall parameters, 48 timers, 48 trunk pulse mode parameters, 48 selective calling (selcall) about, 3 settings, 11 serial communications, 95, 97 Serial Monitor about, 95 command listing, 97 command prompt, 96 connecting to, 96 using, 97, 98 serial port cross-over cable, 70, 84 pin assignements, 84 specifications, startup sequence, 7 status message area. See configuration interface supervisor user account about, 25 logging in, 25 password, changing, 25 system status channel information, 33 current status, 32 device address, Index

129 DIP switches, 33 free memory, 32 IP address, 32 real-time clock, 32 system up time, 32 system version information, 32 System Status menu selecting, 31 system status page, 31 T TDM interface switches, 86 technician user account about, 38 enabling, 38 logging in, 26 trunk radio parameters, 47 TX levels. See LIU Levels TX selcall levels setting, 78 U Universal Plug and Play (UPnP), 3, 22, 35 upgrading the firmware. See firmware USB port about, 96 device drivers, 96 user accounts about, 23 configuring, 25 limited, 23, 40 supervisor, 23 technician, 23, 24, 38 V VOX Configuration page, VOX configuring, 50 enabling, 49 hold time, 49 threshold, exceeding, 49 W web browser, compatability, 21 web interface. See configuration interface DX-Series LIU Product Manual 119

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132 ABN: DX-Series LIU: Product Manual Copyright Omnitronics Pty Ltd MNL /18