1 BASIC INFORMATION Revision History Scope Acronyms 1 2 SYSTEM OVERVIEW General Standards and regulations 2

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3 Document Contents 1 BASIC INFORMATION Revision History Scope Acronyms 1 2 SYSTEM OVERVIEW General Standards and regulations System Configurations 3 Single System 3 Single system with Active-Standby controller 3 A-B system 4 Multiple Exigo systems System size 5 Number of zones 5 Number of amplifiers or IP speakers 6 Number of access panels Priorities 6 Priority assignment 6 Number of priorities 6 Override possibilities Broadcast functions 7 Live announcement 7 Delayed announcement (recall) 7 Chimes 7 Stored voice messages 7 Audio program 7 Simultaneous audio stream General alarm 8 Alarm types 8 Alarm generator 8 Alarm indication with control outputs 8 Alarm override 8 Dual alarm generators 8 Alarm tone synchronization Background music 9 Audio inputs 9 Program selection function 9 Volume adjustment Volume control 9 Table of contents

4 Audio event volume 9 Digital volume control 9 Analog volume controllers Support functions 10 Tick tone 10 Activity indicator 10 System status 10 Microphone test 10 Remote microphone test 11 Panel lamp test Inputs and outputs 11 Analog audio inputs 11 Analog audio output 11 Control inputs 11 Control outputs 12 Control I/O response time 12 Fault relay output 12 Low impedance output System interconnection 12 Rack components 12 Analog loudspeakers 12 Backup amplifier 13 Network IP loudspeakers 13 Access panels 13 Network switches 14 Flowire Audio functions 14 Gain control 14 Audio monitor 15 Noise reduction 15 Automatic gain control/automatic level control 15 Local mute of speakers Integration 15 Radio integration 17 Alphacom integration 17 SIP integration to IPBX 18 Digital Integration with SDK/API 18 Digital Integration with OPC 18 Analog PABX 18 NMS / TMS integration 18 Telecom integration 19 Entertainment systems 19 External alarm systems Remote monitoring 19 Hardwired outputs 19 SNMP monitoring 20 Syslog Fault reporting 21 Visual indicators 21 Audible indicator 21 Display 21 Fault acknowledgement 21 Fault reset 21 Fault reports in A-B systems 22 Table of contents

5 Fault relay output 22 Fault inputs from other systems 22 Fault indication on control output 22 Fault indication on access panels 22 3 SYSTEM CONTROLLER System controller, ESC Mechanical interface 23 Handling 23 Ventilation 23 Power interface 23 Primary power connector 23 Secondary power connector 23 Power switch 24 Fuses 24 Chassis connector Power functions 24 Power redundancy 24 Power monitoring Indicator interface 25 Power indicator 25 Fault indicator 25 Alarm indicator 25 Disablement indicator User interface Audio input interface 26 Line input 26 Microphone input 26 Monitoring Audio output interface 27 Line output Headphone interface Serial port interface 27 RS RS422 & RS Control I/O interface 27 Control input interface 27 Control output interface 28 Fault relay output Control input functions 28 Trigger 28 Monitoring Control output functions 29 Relay control outputs 29 Voltage control outputs 29 Table of contents

6 3.13 Fault relay function Ethernet interface BASE-TX LAN network protocols 30 Spanning tree protocol IP network protocols 30 Configuration protocols 30 Management protocols 30 VoIP protocols Maintenance functions 31 Local storage of configuration 31 Indicator test 31 Connection state 31 Device faults 31 Centralized software upgrade 31 Software 31 Temperature 32 Fan System functions 32 Time synchronization 32 Alarm synchronization 32 Alarm generator Monitoring functions 32 Internal monitoring 33 Connected devices 33 4 EXIGO NETWORK AMPLIFIERS Versions 34 ENA ENA2400-DC 34 ENA2400-AC Mechanical interfaces 34 Handling 34 Ventilation Power interface 34 Primary power connector 34 Secondary power connector 35 Power switch 35 Fuses 35 Chassis connector Power functions 36 Power redundancy on ENA Power redundancy on ENA2400-AC, ENA2400-DC and single powered ENA Power monitoring on ENA Indicator interface 36 Table of contents

7 Power indicator 37 Fault indicator 37 Disablement indicator User interface Speaker loop interface 37 Speaker loop outputs 37 Speaker loop inputs Speaker loop functions 38 Audio channels 38 Loop monitoring 38 High voltage outputs 38 Low impedance output 38 Backup amplifier 39 Line End Transponders Audio functions 39 Audio quality 39 Volume control 39 Equalizer 40 Audio synchronization Audio input interface 40 Line input 40 Microphone input 40 Monitoring Control I/O interface 41 Control input interface 41 Control output interface 41 Fault relay output Control input functions 42 Trigger 42 Monitoring Control output functions 42 Relay control outputs 42 Voltage control outputs Fault relay function Headphone interface 43 Volume control Ethernet interface BASE-TX LAN network protocols 43 Spanning tree protocol IP network protocols 43 Configuration protocols 43 Management protocols 44 VoIP protocols 44 Table of contents

8 4.19 Monitoring 44 Internal power rails 45 Amplifier modules 45 Temperature 45 Ventilation fans 45 Loudspeaker loops 45 Line End Transponder 46 Software 46 Control inputs 46 Network interfaces Maintenance functions 46 Tick tone 46 Loop enable / disable 47 Indicator test 47 5 CONSOLE MOUNTED ACCESS PANELS Versions 47 ECPIR-P: PTT button call panel 47 ECPIR-3P: Three buttons call panel 48 EAPIR-8: Eight buttons alarm panel 48 EBMDR-8: Eight button expansion module Mechanical interface 49 Mounting interface 49 Protection interface 49 Connection interface 49 Ethernet interface 49 I/O interface Indicator interface 50 Power indicator 50 Fault indicator 50 Call indicator 50 Ethernet link indicator interface User interface 51 Microphone interface 51 Microphone monitoring 51 Loudspeaker 51 Volume control button 51 PTT button 51 Programmable buttons 51 Button access protection 51 Button labels 51 Backlight 52 Dimmer Eight buttons expansion module, EBMDR-8 52 Programmable buttons 52 Button access protection 52 Button labels Power functions 52 Power redundancy Inputs and output functions 53 Table of contents

9 General purpose I/O 53 Control relay output 53 Expansion relay Monitoring 53 Microphones 53 Software 53 Configuration 53 Network interfaces Microphone input functions 54 Input level sensitivity 54 Input level control Audio output functions 54 Loudspeaker output LAN network protocols 54 Spanning tree protocol IP network protocols 54 Configuration protocols 54 Management protocols 55 VoIP protocols 55 Microphone settings 55 Microphone monitoring 55 Software 55 Indicators 55 I/O 56 Power 56 Network 56 6 INDUSTRIAL ACCESS PANELS Versions 56 EAPII-1: One button industrial access panel 56 EAPII-6: Six button industrial access panel Mechanical interface 57 Mounting interface 57 Protection interface 57 Connection interface 58 Ethernet interface 58 I/O interface 58 Handheld microphone interface 58 Internal microphone interface Indicator interface 59 Power indicator 59 Fault indicator 59 Call indicator 59 Ethernet link indicator interface User interface 59 Microphone monitoring 59 Programmable buttons 59 Button access protection 60 Button labels 60 Table of contents

10 6.5 Power functions 60 Power redundancy Inputs and output functions 60 General purpose I/O 60 Control relay output 60 Expansion relay Monitoring functions 61 Microphones 61 Software 61 Configuration 61 Network interfaces Microphone input functions 61 Input level sensitivity 61 Input level control LAN network protocols 61 Spanning tree protocol IP network protocols 62 Configuration protocols 62 Management protocols 62 VoIP protocols 62 7 INDUSTRIAL EX ACCESS PANELS Versions 63 One button access panel 63 Six buttons access panel Mechanical interface 64 Mounting interface 64 Connection interface 64 Flowire interface 64 Handheld microphone interface 64 Internal microphone interface Indicator interface 65 Power indicator 65 Fault indicator 65 Call indicator User interface 65 Microphone monitoring 65 Programmable buttons 65 Button access protection 66 Button labels Power functions 66 Power 66 Power redundancy Monitoring functions 66 Table of contents

11 Microphones 66 Software 66 Configuration Microphone input functions 66 Input level sensitivity 66 Input level control IP network protocols 67 Configuration protocols 67 Management protocols 67 VoIP protocols 67 8 EXIGO KITS Versions 68 TKIS-2 68 TKIE Functions 69 Audio 69 I/O 69 Power 69 Network 69 9 IP BASED LOUDSPEAKERS LINE END TRANSPONDERS Versions 70 Industrial line end transponder Mounting interface Speaker loop interface 71 Primary line connection 71 Secondary line connection Power functions Indicator interface 71 Status indicator Status indicator functions 71 Connected 71 Lost connection 71 No connection after power up 71 No power Address setting 72 Address setting interface Operation 72 Table of contents

12 11 CONFIGURATION AND MAINTENANCE Configuration 73 Exigo Management Tool 73 Exigo-Web System maintenance 74 Maintenance of system controller 74 Maintenance on speaker loops 74 Tick tone 74 Indicator test 74 Microphone test Access Rights, Authorization and Login 75 Login ALARM GENERATOR Tones 75 Wave forms 75 Frequency 75 Amplitude Alarm composition 76 Tones 76 Silence Alarm synchronized control output Alarm synchronized with input Special alarms 77 Table of contents

13 1 Basic Information 1.1 Revision History Revision Revised by Date Comment 6.0 Erik Strømme Updated document 1.2 Scope This document is intended to describe the functional behavior and capabilities of the Vingtor- Stentofon Exigo system. After reading this document, the reader will have a clearer understanding of the system s capabilities and the applications for which the system can be used. 1.3 Acronyms DSP F&G GA GUI: HW IP LAN O&M OPC NAT NTP PA SIP SOLAS SSH SMS SMTP SNMP Digital Signal Processor Fire and Gas Alarm system General Alarm Graphical User Interface Hardware Internet Protocol Local Area Network Operation and Maintenance Open Platform Communication Network Address Translation Network Time Protocol Public Address Session Initiation Protocol Safety of Life at Sea Secure Shell Security Management System Simple Mail Transfer Protocol Simple Network Management Protocol System Description Exigo Public Address and General Alarm System 1

14 SAS TMS VA VoIP VPN ZAP Safety and Automation System Telecommunication Management System Voice Alarm Voice over IP Virtual Private Network Zenitel Application Protocol 2 System Overview 2.1 General Exigo is an IP based PAGA system designed to meet the robust and high availability requirements in both onshore and offshore critical applications. As an IP system, Exigo has a wide range of possibilities when it comes to integration. An audio system can integrate with Exigo using open standards such as SIP, while monitoring can be done remotely with industry standard SNMP solutions. In addition, a high level of custom integration can be done using the SDK/API directly on the Exigo system where all information such as fault status and activity is available. Analog integration to UHF or legacy audio PABX systems is also possible using the wide range of control inputs/outputs and audio inputs available in the system. The same inputs can also be used to integrate high quality music solutions to Exigo for the distribution of background music. The Exigo system is easily configurable and scalable after installation. 2.2 Standards and Regulations All components in the Exigo system are tested and certified according to: EN Maritime navigation and radio communication equipment and systems - General requirements - Methods of testing and required test results DNV 2.4 Offshore Installation Operations EN54-16 Fire detection and fire alarm systems. Components for fire alarm voice alarm systems. Voice alarm control and indicating equipment ABS SOLAS chapter III, part B, regulation 6.4 and 6.5 MSC.48(66) International Life Saving Appliance (LSA) Code MSC/Circ.808 Public address for passenger vessels MSC A.830(19) Code on alarms and indicators 2 System Description Exigo Public Address and General Alarm System

15 Network Switch System Description NORSOK Statoil TR3041 / TR System Configurations Exigo supports multiple system configurations. Which one to use will depend on the requirements of the regulations relevant to the system or the requirements from the end user. Single System A Single System, shown in Figure 1, is the most basic system configuration where one system controller is used together with multiple amplifiers and access panels. System Rack System Controller Network Amplifier #1 100/70 Volt Line Area 1 Network Amplifier #2 100/70 Volt Line Network Amplifier #n 100/70 Volt Line Area 2 Ethernet Ethernet Access Panel #1 Access Panel #n Figure 1: Single PA/GA system configuration Backup amplifiers and line end transponders can be incorporated into this type of system to increase system redundancy. Single System with Active-Standby Controller Single systems can be expanded to include a dedicated active-standby, or active-active, controller to increase redundancy. Access panels and kits will send audio and events to both controllers at the same time to ensure that the active-standby controller is able to take over in case the main System Description Exigo Public Address and General Alarm System 3

16 controller fails. The amplifiers will listen to both controllers at all times and will instantly switch to the active-standby state in case the main controller is disconnected. Monitoring of the system is continuously done by the main controller, but critical faults such as disconnected devices are monitored by both controllers at all times. A-B System Exigo is designed to meet the requirements of A-B systems. In an A-B system, two system controllers are used together with amplifiers. A pair of A-B amplifiers will cover the same area with speakers, as seen in Figure 2. In situations where one of the amplifiers is not operational, the other amplifier will still cover the same area with audio, ensuring that audio coverage is maintained. System Rack System Controller A Network Switch Network Switch Network Amplifier #A.1 Network Amplifier #A.2 Network Amplifier #A.n Network Amplifier #B.1 Network Amplifier #B.2 Network Amplifier #B.n System Controller B 100/70 Volt Line 100/70 Volt Line 100/70 Volt Line Ethernet Ethernet Area 1 Area 2 Access Panel #1 Access Panel #n Ethernet Ethernet Figure 2: A-B PAGA with A-B amplifiers and A-B panels If system controller A goes down, all amplifiers will instantly switch to controller B and vice versa. Audio will not be lost on any amplifiers in this situation. When set up as an A-B system, each network access panel can be physically connected to both systems. The network access panels are registered in both systems and exchanges control and status information with the two systems in parallel. Figure 3 below shows how an A-B system can be set up in two different racks. This is commonly done to increase the robustness of the system in case either of the system racks become nonoperational. 4 System Description Exigo Public Address and General Alarm System

17 Network Switch Network Switch System Description System Rack A System Rack B System Controller A System Controller B Network Amplifier #A.1 100/70 Volt Line Area 1 Network Amplifier #B.1 Network Amplifier #A.2 100/70 Volt Line Network Amplifier #B.2 Network Amplifier #A.n 100/70 Volt Line Network Amplifier #B.n Area 2 Ethernet Ethernet Ethernet Access Panel #1 Access Panel #n Ethernet Ethernet Ethernet Figure 3: Dual PAGA System Configuration Multiple Exigo Systems Up to eight Exigo systems can be connected together in Exigo NET. This allows for very large systems and systems requiring additional redundancy. Each Exigo system is independent from the other systems, so in case it loses connection to the other systems it will still be operational. Figure 4: Multiple Exigo Systems The system controllers maintain the connection between the nodes in such an Exigo NET system. For multiple A-B systems connected together, the A controllers will be connected to each other, while the B controllers will be connected to each other. 2.4 System Size Number of Zones The Exigo system is designed to be extremely scalable, and can support systems with up to 250 zones. System Description Exigo Public Address and General Alarm System 5

18 A zone can be realized by using as little as a single IP speaker, a single audio channel or several amplifiers together. There are no limitations on how many audio channels a zone can contain. All amplifiers assigned to a zone amplify and distribute the audio synchronously. Number of Amplifiers or IP Speakers Each Exigo system can maintain 100 amplifiers providing 200 audio channels or up to 200 IP speakers. This can either be in an A-B system or a single system. If bigger systems are required they must be connected together using Exigo NET. Number of Access Panels Each Exigo system can have up to 40 access panels connected. This can be any combination of alarm panels, outdoor access panels, indoor access panels, or access panels for hazardous areas. 2.5 Priorities Priority Assignment In the Exigo system, priorities are assigned to the physical input activating a particular function. This can be functions on an access panel, control input or a signal from an external system. The priority will follow the function after activation, ensuring that an action with high priority is prioritized even when another lower priority action is started in the system. Number of Priorities The Exigo system offers 100 different priorities. The same priority level may be assigned to several access panels, inputs, etc. If multiple activities covering the same zones are activated in the system the activity with the highest priority will be used. The other activities will be queued until the zone is available again or discarded based on the configuration of the action. Various types of configurations can also be used if one of many zones are taken by a higher priority. This can mute the complete activity, cancel it or allow it to continue in the free zones. Override Options Activities with the highest priority will always override a lower priority input. By default, the override is a full muting of the lower priority activity. It is possible to configure the system to handle these situations differently, if needed. If two inputs with the same priority attempt to access the same zone, two things will happen: 1) The input triggered last will get a busy signal. As an example, a user of an access panel will get a busy indication for the zone when he attempts to select it. 2) The input triggered last will be queued until the zones are available or cancelled completely depending on the configuration. 6 System Description Exigo Public Address and General Alarm System

19 2.6 Broadcast Functions Live Announcement Live announcement is the most basic PA function. It is live speech, and is always initiated by a person using an access panel with a microphone. Routine announcements can be configured with predefined or default zones, allowing the broadcast of announcements to zones by pressing just one button. If the basic call is set up with no default or predefined zones, the operator must always select at least one zone before the call is set up. Live speech can be combined with call escalation allowing for changing priority, chime, volume and other parameters. This can, for example, be used to indicate that there is an emergency call active by a special chime. A timeout can also be defined for live speech, which will ensure that PA announcements can only last a certain time. If the announcement exceeds the time limit, it will time out and return the system back to normal operation. Delayed Announcement (Recall) A delayed announcement is a feature where the operator has the ability to record and listen to the message on-the-fly before it is broadcasted. The operator will typically record the message, listen, and then choose to dispatch, re-record or cancel the message. Chimes Each audio activity can be configured to play a chime before the audio is started. Different chimes may be defined based on which access panel is used. Typical usage is to have one chime for normal PA and one chime for important messages used in emergency situations. Stored Voice Messages Stored voice messages can be activated from buttons on access panels by control inputs or external systems (interfaces). Each stored message is uploaded to the system as a WAV file. Audio Program Audio Program is a function that allows a line input to be routed to any zone. This is typically used for analog integration or background music. Simultaneous Audio Stream The Exigo system will support a maximum of 32 simultaneous audio streams. Audio from an access panel to a zone will consume two streams, while alarms and messages will consume one stream. An activity with the highest priority will always take precedence. Background music distribution does not consume any audio streams as it is directly streamed to the amplifiers and IP speakers. System Description Exigo Public Address and General Alarm System 7

20 2.7 General Alarm Alarm Types The Exigo system supports the following alarm initiation features: Automatic Alarm Manual Alarm Automatic Alarm: Broadcasts alarms when activated via a 3rd party system, such as the fire and gas detector. The alarm operates until manually deactivated. Manual Alarm: Alarms where an operator manually activates the desired tone via a push button on a remote access panel. The alarm tone continues until deactivated by the operator. Alarm Generator The Exigo system controller is equipped with a software-controlled alarm generator, running on a separate signal processor. This generator is capable of generating tones with different frequencies. The alarm generator can use tones and pauses (silence) in order to generate customer-specific alarm patterns. A set of predefined alarms is included in the system controller. If special alarms are required, they can be easily configured using the Exigo Management Tool. Alarm Indication with Control Outputs Control outputs can be configured to indicate when an alarm is active. This is useful for noisy areas where light indication is required. Control outputs can also be configured to pulse in synch with alarms from the alarm generator, which will allow for an advantageous integration with other systems. Alarm Override If an audio activity such as a PA call with sufficient priority is initiated to a zone where a general alarm is ongoing, the system will mute the alarm during the duration of the PA call in any overlapping zones. When the PA call is over, the alarm will return to its original volume level. Dual Alarm Generators When the Exigo system is used in an A-B configuration, each system controller has its own alarm generator. If one of the controllers fails, all the amplifiers will switch over to the remaining controller and continue to send out the alarm. Alarm Tone Synchronization All amplifiers and IP speakers in an A-B system will broadcast the alarm generated by the system A controller or the system B controller if the former is unavailable. This ensures that the alarm tones are synchronized across all areas of the installation. 8 System Description Exigo Public Address and General Alarm System

21 2.8 Background Music The background music function enables the distribution of high quality music and audio to selected zones. Background music is handled as other audio with priority and can be set to one or more zones. Audio Inputs The audio program function is used to control background music. This function is used to source audio from one of the line inputs in the Exigo system to one or more zones. Each audio program can be started in a pre-selected zone or a dynamic zone using the zone select buttons. Program Selection Function Advanced audio program control can be used for program selection. This function can step through a list of predefined audio programs in a zone or on a single channel. The advanced audio program control is useful for programming entertainment. Volume Adjustment The volume control function can be used to adjust the volume of the audio programs in a selected zone or on a channel. This function will only control volume on the audio channel itself, so that other activities such as alarms or live speech will use the default maximum volume. 2.9 Volume Control Audio Event Volume Each audio event can have a different volume setting. Background music may have a lower volume level while emergency announcements will be at full volume. Digital Volume Control The digital volume control function can be used to adjust the audio program volume level. Only audio programs will be affected by this, and other activities will use the predefined volume. Analog Volume Controllers The volume can be adjusted locally in zones or areas by installing volume controllers on the speaker loop. These controllers include a volume override functionality to ensure volume restoration when important messages and alarms are broadcasted. The override relay in the volume control can be driven directly by the outputs on the amplifiers (24 V DC) as shown in Figure 5. Typically, the volume controllers will be wired in a failsafe manner, meaning that they will return to full volume if the 24 V DC is removed. System Description Exigo Public Address and General Alarm System 9

22 Ethernet System Controller LET #1 Network Amplifier #1 100/70 Volt Line Network Amplifier #2 100/70 Volt Line LET #1 Area 1 Network Amplifier #n 24 V DC 100/70 Volt Line V.C LET #1 Network Switch V.C LET #2 System Rack Area 2 Figure 5: Volume override 2.10 Support Functions Exigo has a number of support functions that can be used to monitor and test the system. Tick Tone Tick tones can be used to verify the integrity of the system and the speakers connected by listening to the audio. In Exigo the tick tones can be started directly from the GUI on the amplifiers or from a dedicated button on an access panel. Starting the tick tones from an access panel will broadcast the tick tone in the selected zones, while starting tick tones from the amplifiers will broadcast it on a single channel. Tick tones in an A-B system can be configured with different tick tones for the A and B loop which allows for a faster verification of the loops, simplifies maintenance, and speeds up periodical checks. Activity Indicator Activity indicator is a function, which can be assigned a button on an access panel. This button will then indicate whether there is activity in the pre-defined zone in the priority range defined. System Status System status is a function that can be used on a button to indicate the connection status to one of the system controllers in an A-B system and whether the system controller has any faults. Microphone Test Microphone test is a function that can be used on access panels with an inbuilt speaker to check whether the microphone is working as it should. This function will send audio from the microphone 10 System Description Exigo Public Address and General Alarm System

23 via the system controller and back to the access panel to verify that the microphone and audio handling on the access panel is operational. Remote Microphone Test The remote microphone test function can be used to activate a microphone on a remote access panel and route the audio to another access panel with a speaker. This is useful when outdoor access panels without an inbuilt speaker are used and the operator wants to test the microphone without activating the access panel. Remote microphone test can be configured with both a priority and a timeout, thereby ensuring that the station is fully operational after a short period of time. Panel Lamp Test Panel lamp test is a function, which can be used on all access panels to verify that the LEDs are working correctly. This is checked by activating the function and visually verifying that the LEDs are lit Inputs and Outputs Analog Audio Inputs Each Exigo system controller and network amplifier has one line input and one microphone input. The TKIS-2 kit has a microphone input while the TKIE-2 kit has both a line input and a microphone input. The audio inputs are available for general-purpose use such as background music or analog audio integration Phantom Power The microphone input on the controller and the amplifier has the possibility of phantom powering, meaning that standard phantom powered microphones can be connected directly to the input. The phantom power can be enabled or disabled through the Exigo Management Tool. Phantom powering is disabled by default. Analog Audio Output The system controller features a line out connection (600 ohm) to integrating audio from any zone, or set of zones, to an external device. This can be used to send audio to any third party system such as radio or PABX. The line output can be configured to be part of a zone or as a completely standalone zone. Line outputs can also be found on the TKIS-2 and TKIE-2 kits. Control Inputs Control inputs are global and can be used to trigger any activity in the Exigo system. Control inputs can be found on the system controller, amplifiers, kits, access panels and IP speakers. System Description Exigo Public Address and General Alarm System 11

24 Control Outputs Control outputs can be programmed to trigger on specific activities or if an activity with certain properties is activated. For example, the control output should trigger if an alarm with priority in a set range is active. An Idle position for all control outputs can also be configured. The system controller and amplifiers have six control outputs each. Each output is equipped with a relay and a 24 V DC output capable of supplying 200mA. The DC output can directly drive an external relay or low power light indicator. The relay output supplies connection to all outputs on the relay (COM, NO and NC). Control outputs for small signals can also be found on the access panels and kits. Control I/O Response Time The response time of any control input or control output in the system is guaranteed to be maximum 200 ms from action to reaction. Fault Relay Output One dedicated fault relay output is available on the system controller and on each amplifier. When a fault is present in the system, the system controller will close its fault relay. The amplifier s fault relay will only react on faults locally in the amplifier and will indicate whether the fault is active or not. The fault relay is de-energized if there is a fault, thus ensuring the possibility of failsafe connections. Low Impedance Output The amplifiers are equipped with low impedance monitor outputs for each audio channel. These can be used to connect monitoring loudspeakers in the system rack System Interconnection Rack Components The interconnection of the different system components is based on Ethernet. Analog Loudspeakers Loudspeakers are connected to the amplifiers using standard 2-wire cabling, in either 100V or 70V configuration. 12 System Description Exigo Public Address and General Alarm System

25 Ethernet System Controller System Controller Network Amplifier #1 Network Amplifier #1 Speaker Loop 1 Network Amplifier #2 Network Amplifier #2 Speaker Loop 2 Backup Amplifier Backup Amplifier Network Switch Network Switch AC/DC AC/DC 230 VAC 48 VDC System Rack, Power System Rack, Signal Figure 6: Simplified Internal Cabling Backup Amplifier One amplifier can be the backup for up to six other amplifiers. The backup amplifier will be wired to all six amplifiers, both speaker loops, and control outputs, which are used for taking over the connector to the speakers. Network IP Loudspeakers The Exigo system supports network loudspeakers. Network IP loudspeakers are loudspeakers equipped with a network interface, DSP and an amplifier. These speakers use the network to send and receive audio and information used for monitoring. Network IP loudspeakers are individually configurable, addressable and monitored, and may be used as a micro-zone or part of a larger zone, consisting of both network speakers and 100V speakers. Access Panels All access panels in the Exigo system connectsto the central equipment using the network infrastructure. In an A-B system, both indoor and industrial access panels are connected to the A system (and B system) using standard Ethernet. It is possible to connect the panel with two cables in order to ensure redundancy. Figure 7 provides some examples of how Ethernet based access panels can be connected to the two systems. These access panels will receive power over Ethernet (PoE) from the A system, and a separate power feed from the B system. Alternatively, they can be powered via PoE injectors from both racks. Ex certified access panels are connected to the A system (and B system) using Flowire technology. The Flowire technology is a proprietary version of power-line communication. Flowire requires only a single pair of cable, which carries both data traffic and power to the access panels. System Description Exigo Public Address and General Alarm System 13

26 Ethernet Ethernet System Controller A Console Panel Industrial Panel Ex Panel System Controller B Network Amplifier #A.1 Network Amplifier #B.1 Network Amplifier #A.2 Network Amplifier #B.2 Network Amplifier #A.n Network Amplifier #B.n Network Switch Network Switch Ethernet, PoE Ethernet Ethernet, PoE Ethernet Ethernet Ethernet Flowire Converter Flowire Flowire Flowire Converter 24 VDC DC Supply System Rack A System Rack B Figure 7: Ethernet Access Panels Connected to A and B Systems Network Switches While any network switch can be used in the Exigo system, managed network switches are recommended. Network switches should support IGMP for optimal functionality. In a large WAN extra care must be taken into consideration about network architecture. Each call to a zone or group of zones is done with multicast from the system controller to the amplifiers. Devices communicate with the system controller by a combination of multicast and unicast on a number of ports. Typically, a firewall is placed between a dedicated Exigo network and the external network. Flowire Flowire is an Ethernet converter that can be used in Exigo. These transform normal Ethernet to 2- wire. Two Flowires can be placed back-to-back to extend the range of the network. One of the Flowire devices can receive power from the first Flowire. Each Flowire supports PoE, which means that they can power an access panel placed at the end of one Flowire pair Audio Functions Gain Control It is possible to adjust the gain of all outputs as well as analog inputs in the system. This is either done by using the Exigo Management Tool, or the user interface on the amplifiers. Each activity in the system can be configured with a predefined gain. This is useful if emergency PA should have a higher volume than normal PA. 14 System Description Exigo Public Address and General Alarm System

27 Audio Monitor The system controller and the network amplifiers are equipped with an output where a headset can be connected to monitor the audio. The system controller can listen to the audio inputs on the controller, while the network amplifiers can also listen to its own channel(s). This is useful for adjusting input levels when connecting the device to other audio equipment. Noise Reduction The Exigo network access panels are equipped with a noise suppression functionality through the automatic gain control functions. This allows for reducing the impact of noise in noisy areas. Automatic Gain Control / Automatic Level Control Exigo offers AGC for all microphone- and line-inputs on both access panels and other equipment, ensuring that the output level is always consistent. This can be used to improve audio intelligibility when the access panel is located in noisy areas. Automatic Local Mute of Speakers Exigo can use control outputs to mute local speakers. These control outputs can be configured to trigger when a specific access panel is sending audio to a specific zone. This ensures that local mute will only be used when there is a likelihood of feedback from the call station. Automatic muting of speakers can also be triggered from external systems such as IPBX, depending on which station is used to do a PA announcement. This will prevent feedback and enhance intelligibility. Manual Trigger Exigo has the option of manual local mute. This enables an operator to trigger the mute manually and is useful in control rooms when site-wide alarms are occurring. The manually triggered local mute can be configured to automatically turn off based on time, or if there are new alarms or when all alarms are turned off, ensuring that new events in the system are received by the operators Integration The Exigo system provides an extensive set of integration and interfacing options. This enables integrated operations, increasing the overall safety, security and efficiency of the different technical systems on site. System Description Exigo Public Address and General Alarm System 15

28 Figure 8: Integrated Operations The Exigo system has the following integration options: Control Input (potential-free contact) Control Output (potential-free contact and/or 24VDC) Audio Line In (600 ohm / 10 k ohm selectable) Audio Line Out (600 ohm) SNMP Syslog IP Audio integration through SIP IP Audio integration through Vingtor-Stentofon AlphaCom IP integration through the Vingtor-Stentofon Exigo SDK The following systems can be integrated with Exigo Radio Telecom integration (ipbx, PABX, external communication, intercom) Management systems SMS (Security Management Systems) SAS (Safety and Automation Systems) 16 System Description Exigo Public Address and General Alarm System

29 TMS (Telecom Management System) External Alarm systems (F&G, intrusion) Generic integrations (automation, paging, etc.) Entertainment systems Typhoon system (fog horn) ESD/ESS (Emergency shutdown systems) Radio Integration The Exigo system can interface radio systems using analog and digital technologies. The radios can be handled as one or more zones containing radios. This allows for separation on which audio should be sent to the radios. Exigo has been integrated with the following radio systems: UHF / VHF radio (analog E&M interface) Mototrbo (Motorola) digital radio system Rohil Tetra System Motorola TETRA System Rohde & Schwarz Tetra System The following integrated operations are supported: PA announcements to one or more radio channels using live broadcast or delayed broadcast Make PA announcements from radio using private radio call (only from digital and Tetra radio systems) AlphaCom Integration The Exigo system can be integrated with the AlphaCom system over IP. This allows the intercoms of the AlphaCom system to broadcast announcements on the Exigo system or trigger other activities such as alarms, depending on the configuration settings. System Description Exigo Public Address and General Alarm System 17

30 Figure 9: AlphaCom system The Exigo system can also forward audio to the AlphaCom system. Intercoms in the AlphaCom system can be part of one or more zones. Alarms can then be sent to the intercom stations to increase the audio coverage. The AlphaCom can also be used as a gateway to other systems. SIP Integration to IPBX The Exigo system can be integrated to any SIP server, such as Asterisk. This integration allows both incoming and outgoing audio to be set up depending on the configuration of both systems. Digital Integration with SDK/API The Exigo system has an API called ZAP that can be used for integration between Exigo and thirdparty systems. Through this system, information such as faults and system statuses of all components are available, including call status of all running activities. Digital Integration with OPC OPC can be used to integrate with the Exigo system. This allows the Exigo system to be part of bigger SCADA systems, or systems using OPC to control a large number of other systems. Analog PABX Using the line inputs, line outputs and control I/Os of Exigo allows for integration with analog PABX systems. NMS / TMS Integration Exigo supports SNMP, which allows Exigo to be integrated in Network Management Systems and Telecom Management Systems for automatic monitoring. 18 System Description Exigo Public Address and General Alarm System

31 Telecom Integration The Exigo system supports the following telecom interfaces: Analog Trunk (E&M) Analog Subscriber Line (FXO/FXS) through AlphaCom The following integrated operations are supported: Make remote PA calls from telephone Make a recall of PA message before it is broadcasted Send the PA message from Exigo to the telecom system Control alarms and other activities from the telephony system Entertainment Systems The integration with entertainment systems is mainly in order to mute the entertainment system s audio during PA and GA. The Exigo system can integrate with pure audio entertainment systems, but also audiovisual systems such as IP-TV systems. External Alarm Systems The Exigo system is able to mute external alarms systems via control outputs. This can be used to mute, e.g. external GA, foghorn and fire alarm bells during PA announcements Remote Monitoring The Exigo system provides remote reporting to NMS, TMS and SAS systems using: Hardwired relay and control outputs SNMP Syslog Hardwired Outputs Fault Relay All Exigo amplifiers and the Exigo system controller feature fault relays for remote monitoring. The fault relay s resting state indicates fault. Once the device is powered and operational and no faults exist in the device, the fault relay is energized, indicating Device OK. Any fault in the system will trigger the fault relay on the system controller Control Outputs All control outputs in the Exigo system can be programmed to trigger on any fault on the device or in the system to signal fault states to an external monitoring system. Several combinations of faults may be programmed to trigger the outputs. System Description Exigo Public Address and General Alarm System 19

32 SNMP Monitoring All devices have SNMP (v1, v2c) and support MIB2 and the Vingtor-Stentofon MIB SNMP Overview SNMP is used in network management systems to monitor network-attached devices for conditions that warrant administrative attention. SNMP works well in a multi- vendor environment and is a mature internet standard for managing devices on IP networks. The network management system will get information from the network devices by pulling the information available in the MIB from the device SNMP Support The Exigo system controller, network amplifiers and access panels supports SNMP v1 and v2c (RFC 2576). Two MIBS are used with the Exigo equipment: MIB-2 MIB-2 (RFC 1213) Vingtor-Stentofon-Device MIB MIB-2 is a standardized MIB that allows NMS, TMS and SAS systems to read out information such as logical network name, processor load, memory utilization and TCP/IP info from a network element. Vingtor-Stentofon-Device MIB The Vingtor-Stentofon-Device MIB allows the NMS, TMS and SAS system to read out additional information from the Exigo devices that are not covered by MIB-2. This information includes operational status, temperature, fan status, status of control inputs and outputs, and information about the microphones. Vingtor-Stentofon SNMP traps The Exigo system controller can forward syslog events as traps to an external system. The syslog contains information about all events in the system such as call states, faults, warnings and connection status Monitoring of External Devices without Native SNMP Support Exigo provides SNMP interface support for analog devices via the Vingtor-Stentofon-Device MIB and the Control Input Object. An example of usage is beacon monitoring, where a fault relay on a beacon loop can be connected to a control input on the system controller. The Control Input Object will include physical address, logical label (e.g. Beacon Loop #9), and status. Syslog Persistent logging in the Exigo system is done with syslog. Each system controller has a separate syslog where all events, faults, warnings and status changes are stored for later retrieval. The syslog events can be forwarded over UDP or TCP to an external system. Syslog events can also be forwarded as SNMP traps to an external system. This is useful for monitoring multiple 20 System Description Exigo Public Address and General Alarm System

33 Exigo systems in one common Network Management System using an external syslog PC to collect the information in a centralized location Fault Reporting All faults in the system are reported to the system controller, which is provisioned with an interface to view and handle them. Each fault is assigned a severity level which is used for logging purposes and to determine the severity of the fault. Visual Indicator The system controller has one light-emitting indicator to show that there are one or more faults detected in the system. This fault indicator will be lit as long as there are active faults or faults that has not been reset in the system. Audible Indicator The system controller has an audible indicator to draw attention when a fault is detected. This indicator will switch off when all faults are acknowledged. Display The system controller has an LCD display to show details of each registered fault. For each fault, it is possible to see: Identification of the faulty unit and its location Detailed description of the fault The time of detection The zones (if any) affected by the fault Fault Acknowledgement When a fault is detected, the system controller will activate the visual and audible fault indicators. In order to mute the audible indicator, a button (fault acknowledge) on the front of the system controller must be pressed. This will turn of the audible indicator, but not the visual indicator. The visual indicator will only be turned off when the fault is corrected and removed from the system. Fault Reset Through the system controller s user interface, faults can be selected and reset. The system will first run a check to see that the fault is corrected. If the fault is corrected, it will be removed from the fault list. If this was the last fault in the list, the visual fault indicator will be deactivated. If the fault is still present when a reset is attempted, the system will regenerate the fault and both visual and audible indicators will be re-activated. System Description Exigo Public Address and General Alarm System 21

34 Fault Reports in A-B Systems When the Exigo system operates in an A-B configuration, faults are handled in the A system and B system separately. Some faults, which affects both systems, such as disconnected access panels are reported to both. All devices can be configured to be reported as missing in one or both system controllers. Fault Relay Output System controllers and network amplifiers have dedicated fault relay outputs. The fault relay on the system controller indicates faults on all devices monitored by the system controller while the fault relay on the amplifier indicates active faults located on the amplifier itself. All relays are fail-safe, meaning that they will go to a fault position if the device loses power. Fault Inputs from Other Systems Any control input in the system can be set up to generate a specified type of fault. This can be used to monitor external equipment such as network switches, power supplies, etc. Fault Indication on Control Output It is possible to set an action on a control output to follow one or more faults in the system. This is used when Exigo is integrated with other monitoring systems that receive analog inputs. It can also be useful for troubleshooting and provides added security and safety features to the system. Fault Indication on Access Panels Fault LED on Access Panels Each access panel is equipped with a separate fault LED. This LED can be set up to either show that there is a fault in the system, including the access panel itself, or to show whether there is a fault on the access panel itself. System Status Buttons on the access panels can be assigned a system status function. This will be lit green if the access panel is connected to the system, and red if there is a fault in the system. Each system status function can be assigned to either system A or system B, or system A and B. 22 System Description Exigo Public Address and General Alarm System

35 3 System Controller 3.1 System Controller ESC1 Figure 10: ESC1 3.2 Mechanical Interface Handling The system controller is equipped with integrated handles, making it easy to be pulled out of the rack. The handles can also be used to carry the system controller. Ventilation The system controller is equipped with a temperature-controlled fan on the left side. This fan draws air from the front side of the system controller and exhausts it out at the rear side. Power Interface The power interface consists of: Primary Power Connector Secondary Power Connector Power Switch Fuses Ground Connector Primary Power Connector The primary power connector is a V-Lock connector located at the rear side of the system controller. This connector can be used with standard IEC C13 power cords, or the special lockable V-Lock power cord. Secondary Power Connector The secondary power connector is pluggable and lockable, and is located at the rear side of the system controller, underneath the primary power connector. The plug is attached to the power cable with push-in spring-cage terminals capable of accomodating cables up to AWG 13 (2.5mm²). System Description Exigo Public Address and General Alarm System 23

36 Power Switch The system controller is equipped with a power switch for primary power (110VAC - 230VAC). This switch is located at the rear side of the system controller. The secondary power source (24-48VDC) must be physically disconnected in order to turn it off. Fuses There are three fuses in the system controller: Primary Fuse Secondary Fuse Internal Fuse All fuses are single phase, meaning that it will only break one of the phases of the power input. For the primary power, the fuse is connected to the AC live conductor. But with AC current and no coding of the socket, the power may still be energized even though the fuse is blown. For the secondary power the fuse is connected to the positive conductor. Being of DC current, it will always break the positive connection, leaving the power totally de-energized when the fuse is blown. All fuses are located inside the system controller and not accessible from the outside. The fuses are 5 x 20 mm ceramic fuses that can be changed by disconnecting the system controller from all power and opening the top cover of the system controller. Chassis Connector The chassis connector is located at the rear side of the system controller and consists of a rugged screw terminal, allowing the connection of 2.5mm² cables. This terminal can be used to connect the system controller s chassis to ground. The connector is marked with the earth symbol. 3.3 Power Functions Power Redundancy The system controller can be powered from two independent power sources - the primary and the secondary power source. The primary power, AC power, is the preferred power and will be used as long as it is present. The switchover to the secondary power, DC power, will occur if the primary power fails or is disconnected. If when operating from the secondary power the primary power becomes available, a switchover to the primary power will occur. The switchover from one power to the other is done without interruption of the system controller s operation. The system controller will not draw any significant amount of power from the unused power source, as only a small amount is used to monitor the power source (less than 1W). 24 System Description Exigo Public Address and General Alarm System

37 Power Monitoring Both primary and secondary power supplies are monitored, meaning that the system controller will detect the following possible scenarios: Primary power disconnected or fuse blown Secondary power disconnected or fuse blown Primary power or secondary power not powered and ready Each of these faults will generate a local failure condition in the system controller. Monitoring of unused power supplies can be turned off. 3.4 Indicator Interface The indicator interface consists of: Power Indicator Fault Indicator Alarm Indicator Disablement Indicator In-control Indicator Power Indicator The power indicator consists of two green LEDs, located on the system controller s front panel, labeled POWER AC and POWER DC. The LEDs will be lit when the corresponding power supply is connected and ready to power the system controller. Fault Indicator The fault indicator consists of a yellow LED located on the front panel of the system controller, and an audible buzzer. Whenever a fault is detected in the system, the LED will be lit. The audible buzzer will only sound when new faults are registered. If a fault which is not corrected is attempted to be cleared, the buzzer will sound again. Alarm Indicator The alarm indicator is a red LED located on the front panel of the system controller. This LED will be lit whenever there is alarm activity in the system, i.e. announcements with a priority within a certain range or marked as an alarm. Disablement Indicator The disablement indicator is a yellow LED located on the front panel of the system controller labeled DISABLED. This LED will be lit when an amplifier connected to the system controller is in disabled mode or if any audio channels on connected amplifiers are disabled. System Description Exigo Public Address and General Alarm System 25

38 3.5 User Interface The user interface consists of a graphical LCD display and a rotary switch with push-to-select, located on the front side of the system controller. The system controller s user interface utilizes the indicator LEDs, the display and the control button for interaction. The operator is presented with a graphical menu system where information can be viewed and basic test and monitoring tasks can be done. 3.6 Audio input interface The system controller s audio inputs can be used as audio sources by the entire system. Audio sources like CD-players, radios and MP3-players can be connected for background music, or microphones can be directly connected as simple call stations. Line input One line input is located at the rear side of the system controller and consists of a 3-pole pluggable screw terminal block. The terminal block offers a balanced input and ground (screen) and it is galvanically isolated from the system controller s power ground. The line input can be set up to feed audio into the system, most commonly for background music. The input level can be adjusted through configuration in order to facilitate the accommodation of several different audio sources. This input can also be used for audio integration from PBX or radio integration. Microphone input The microphone input is located at the rear side of the system controller and consists of a 2-pole pluggable screw terminal block. The terminal block offers a balanced input with phantom power and ground (screen). The microphone input is equipped with phantom powering, so that a P12 compatible microphone can be connected directly. The input is also monitored, so that it will be detected if the microphone is missing or shorted. The monitoring is activated by default, but can be deactivated if the function is not needed. Each microphone input has automatic gain control (AGC), ensuring a consistent output volume even though different users may talk with different intensity. Monitoring Both audio inputs have detectors for pilot tones. These detectors will be able to detect a pilot tone of 20 khz generated by the connected equipment. The monitoring is by default not activated, but can be enabled per individual audio input if the function is required. 26 System Description Exigo Public Address and General Alarm System

39 3.7 Audio output interface Line output One line output is located at the rear side of the system controller and consists of a 4-pole pluggable screw terminal block. The terminal offers a balanced output, 0V for monitoring and chassis connector for shielding of the cable. The analog audio output can be part of any zone or used in a zone alone. This is typically used for integration of audio with radio or analog PABX systems. 3.8 Headphone interface The headphone interface consists of a 3.5 mm jack located at the front side of the system controller. This interface allows connection of standard low impedance headsets for audio verification and for adjustments to line input and line outputs. Through the headphone interface, an operator can listen to any local channel / source in the device, and adjust the volume accordingly. 3.9 Serial port interface The serial port interface consists of two RJ45 connectors located at the rear side of the system controller. The system controller s serial ports can be used for maintenance and debugging. RS232 The RS232 port is available through the RJ45 marked with RS232. This port is a standard RS232 with data signals, but no control signals. Available behind the front panel. RS422 & RS485 The RS422 / RS485 port is available through the RJ45 marked with RS422. This port is a standard RS422 serial port without control signals. In order to use this port as a RS485 port, the Tx+ signal must be connected to the Rx+ signal and the Tx- signal must be connected to the Rx- signal Control I/O interface Control input interface The control input interface consists of one 12-pole pluggable screw terminal and is located on the rear side of the system controller. Each control input uses two poles, giving six control inputs. Figure 11: Connection terminal block Control inputs System Description Exigo Public Address and General Alarm System 27

40 Control output interface The control output interface consists of six control outputs. All six control outputs are located at the rear side of the system controller. Each output has a 24 V DC output and a relay which switch together. Two pins of each output offer 24 V DC and ground. Each output offers the common, normally open and normally closed terminals of the relay. 24V 0 V NO COM NC 24V 0 V NO COM NC 24V 0 V NO COM NC NO COM NC 24V 0 V NO COM NC 24V 0 V NO COM NC 24V 0 V Figure 12: Connection terminal block Control outputs Fault relay output The fault relay interface consists of a 3-pole pluggable screw terminal located at the rear side of the system controller. The terminal offers connection to the common, normally open and normally closed poles of the fault relay. The relay is energized when system is booted and OK. This means that the following states are valid: NC-COM NO-COM FAULT System OK NC COM NO 3.11 Control input functions Figure 13: Connection terminal Fault relay The control inputs allow connection of any closing / opening circuit, i.e. switches or relays. The system controller will react to the change of state on any control input within 200 ms. The control inputs can be used to trigger actions in the system, such as starting an alarm, or any other action available in the system. Trigger Each control input can be configured to activate on a closing or opening contact. Different audio activities can be assigned to the closing or opening of the contact allowing for a wide set of options. 28 System Description Exigo Public Address and General Alarm System

41 Monitoring The control inputs can be set up to monitor the connected circuit. For the monitoring to work, two resistors must be placed at the remote end of the signal cable as shown in Figure 14. System Controller R R Figure 14: Digital control I/O monitoring Monitoring of each control input can be enabled per control input if the function is needed Control output functions The control outputs are under individual control, and can be activated by any event in the system. Possible events include: Audio activity in a zone Local muting of speakers Active panel Priority level Specific faults Idle state of each control output can be configured to be either normally open or normally closed when they are idle, allowing for fail-safe connections to external equipment. Relay control outputs The relay control outputs will close the relay by energizing the relay coil when activated. Voltage control outputs The voltage control outputs will deliver 24 V DC on the associated terminal when activated. Max current is 200mA per output Fault relay function The fault relay is permanently energized when the system controller operates normally and no faults are present in the system. The fault relay will fall back to the normally open state if the system controller detects an internal fault (hardware or software), loses power or receives a fault notification from other system components (e.g. amplifiers). System Description Exigo Public Address and General Alarm System 29

42 3.14 Ethernet interface 100BASE-TX The 100BASE-TX interface offers two Ethernet ports in the form of two RJ45 connectors located on the rear side of the system controller. Each Ethernet port is equipped with LED indicators for link and activity. These ports share the same IP address, and act as a redundant connection to the system controller LAN network protocols All network connections on the system controller are internally connected to a managed layer 2 switch, enabling a shared IP address for all ports. Every connection can therefore act as a backup for the others. The system controller supports STP, making it possible to have multiple network connections to the same network without creating network loops. Both network ports of the system controller can be monitored and will report a fault if they are disconnected. This is useful in systems where both network ports are used to increase redundancy. Spanning tree protocol The system controller supports STP (IEEE 802.1D), making it possible to have multiple network connections to the same network without creating network loops. This function allows multiple network connections to the system controller, ensuring connection redundancy IP network protocols Configuration protocols ARP DHCP Zeroconf / Bonjour TFTP Open standard for resolution of IP addresses into MAC addresses. Open protocol used for dynamic configuration of hosts. Set of techniques that automatically create a usable Internet Protocol (IP) network without manual operator intervention or configuration servers. Open protocol for transfer of files. Management protocols NTP SNMP SMTP ZAP Open protocol for time synchronization. Open protocol for network management. Open protocol for reception and sending of s. Proprietary protocol for configuration and management of Exigo units. 30 System Description Exigo Public Address and General Alarm System

43 VoIP protocols DTMF DIP RTP RTCP SDP Support for DTMF in RTP data. RFC 2833 (RTP Payload for DTMF Signals) RFC 2976 (SIP INFO) Proprietary protocol for fast transmission of control data and audio routing. Open protocol for transmission of real-time media. RFC 3550 Open protocol for control of the RTP stream RFC 3550 Open protocol for description of streaming media parameters. RFC Maintenance functions Local storage of configuration The system controller stores a backup of all other system components configuration. This allows for the simple and efficient replacement of faulty amplifiers and access panels. Indicator test The system controller can initiate a test of all its local indicators from the GUI. This will allow the operator to ensure that all LEDs are working. Connection state The system controller contains a list accessible from the GUI connection status on all connected devices. Device faults The system controller will present any faults on the connected devices in the GUI. This allows for fast fault identification and resolving. Centralized software upgrade The system controller can initiate a global software upgrade of all connected devices over the network. This is triggered from the web interface of the controller. Software Two watchdogs monitor all software processes running on the system controller. The first watchdog is a software-based watchdog. This watchdog monitors the software processes and will log a fault and attempt to restart the process if the process hangs. The second watchdog is System Description Exigo Public Address and General Alarm System 31

44 hardware based, which will reset the entire device if the software watchdog stops signaling it with keep-alive messages at regular intervals. Temperature The system controller monitors all internal parts exposed to overheating. This means that internal components, such as power supplies, processors, etc. are monitored. Fan The system controller monitors the fan used for cooling. The monitoring will check that the fan operates at the nominal RPM, and report it as faulty if the deviation is too large or if the fan has stopped completely System functions Time synchronization The system controller can receive time synchronization from an NTP server, making it possible to synchronize the system time with other external systems. The system controller can also be set up to be the actual NTP server, and allow other systems to synchronize their time with the Exigo system. Alarm synchronization The system controller ensures that all devices in the system capable of playing back sound are synchronized. This makes sure that all audio and alarms in the entire system, or connected systems, are broadcasted synchronously. Alarm generator The system controller is equipped with an alarm generator capable of generating alarm patterns. The alarm generator can be configured to generate complex tone patterns with several different tones, duration and waveforms Monitoring functions The system controller continuously monitors, and receives monitoring information from all functions related to the proper operation of the audio distribution. This includes: Internal modules Amplifiers (including loudspeaker loops) Access panels The system controller will present any critical fault within 100 seconds of occurrence and raise a fault alarm. The fault must be acknowledged and reset before the fault can be removed from the fault list. 32 System Description Exigo Public Address and General Alarm System

45 Internal monitoring The system controller monitors: Internal voltages Temperatures Power supplies Software Configuration Network connections Control inputs Ventilation fan Alarm generator Connected devices Amplifiers The system controller will regularly check that all amplifiers in the system are present and operational. The system controller will also receive notice of any faults detected by the amplifiers Access panels The system controller will regularly check that all alarm panels in the system are present and operational. The system controller will also receive notice of any faults detected by the access panels. The Exigo system controller is responsible for audio distribution in the system and for maintaining a list of faults in the system. Faults on a device is reported to the system controller, which logs the fault and displays the fault in the GUI. 4 Exigo Network Amplifiers Figure 15: ENA2200 System Description Exigo Public Address and General Alarm System 33

46 4.1 Versions ENA2200 Exigo amplifier with 2 x 200W channels Vac 24-48Vdc ENA2400-DC Exigo amplifier with 2 x 400W channels 48Vdc ENA2400-AC Exigo amplifier with 2 x 400W channels Vac 4.2 Mechanical interfaces Handling The amplifier is equipped with integrated handles, allowing it to be easily pulled out of the rack. The handles can also be used to carry the amplifier. Ventilation The amplifier is equipped with two temperature-controlled fans. The fans draw air from the front side of the amplifier and exhaust it out at the rear side. 4.3 Power interface The power interface consists of: Primary power connector Secondary power connector Power switches Fuses Ground connector Primary power connector ENA2200 and ENA2400-AC: 34 System Description Exigo Public Address and General Alarm System

47 The primary power connector is a V-Lock connector located at the rear side of the amplifier. This connector can be used with standard IEC C13 power cords, or the special lockable V- Lock power cord. Secondary power connector ENA2200 and ENA2400-DC: The secondary power connector is pluggable and lockable, and is located at the rear side of the amplifier, underneath the primary power connector. The plug is attached to the power cable with screw terminals capable of hosting cables up to AWG 6 (13 mm²). Power switch The amplifier is equipped with one power switch for the primary power (110Vac 230Vac). This switch is located at the rear side of the amplifier next to the power connector. The secondary power source (24-48Vdc) must be disconnected in order to turn it off. Fuses There are five fuses in the system controller: Primary fuse Secondary fuse Three internal fuses, including one for each audio channel All fuses are single phase, meaning that it will only break one of the phases of the power input. For the primary power the fuse is connected to the AC live conductor. But with AC current and no coding of the socket, the power may still be energized even though the fuse is blown. For the secondary power the fuse is connected to the positive conductor. Being of DC current, it will always break the positive connection, leaving the power totally de-energized when the fuse is blown. All fuses are located inside the amplifier and not accessible from the outside. The fuses are 5 x 20 mm ceramic fuses, which can be changed by disconnecting the amplifier from all power and opening the top cover of the system controller. Chassis connector The chassis connector is located at the rear side of the amplifier and consists of a rugged screw terminal, allowing connection 2.5mm² cables. This terminal can be used to connect the amplifier s chassis to ground. The connector is marked with the earth symbol. System Description Exigo Public Address and General Alarm System 35

48 4.4 Power functions Power redundancy on ENA2200 The amplifier can be powered from two independent power sources, the primary and the secondary. The primary power, the AC power, is the preferred power, and will be used as long as it is present. The switchover to the secondary power, the DC power, happens if the primary power fails or is disconnected. When operating from the secondary power and the primary becomes available, a switchover to the primary is done. The switchover from one power to the other is done without interruption of the amplifier s operation. The amplifier will not draw any significant amount of power from the unused power source, only a small amount used to monitor the power source (less than 1 W). Power redundancy on ENA2400-AC, ENA2400-DC and single powered ENA2200 The ENA2400-AC and ENA2400-DC contains one power module, and power redundancy must be handled outside of the amplifier. UPS or contactors can be used for this. The cutoff time before reboot of the amplifiers are 100ms, meaning that they can lose power for 100ms before rebooting. Audio will be muted during this switchover to increase robustness. Power monitoring on ENA2200 Both primary and secondary power supplies are monitored, meaning that the amplifier will detect the following possible faults: Primary power disconnected or fuse blown Secondary power disconnected or fuse blown Primary or secondary power not powered Each of these faults will generate a local failure condition in the amplifier, and a notification will be sent to the system controller. It is possible to configure the amplifier to disregard faults from the primary and / or secondary power. This can be used if only one of the power supplies will be used. 4.5 Indicator interface The indicator interface consists of: Power indicator Fault indicator Alarm indicator Disablement indicator 36 System Description Exigo Public Address and General Alarm System

49 Power indicator The power indicator consists of two green LEDs, one labeled POWER AC and the other POWER DC. The LEDs will be lit when the corresponding power supply is connected and ready to power the amplifier. Fault indicator The fault indicator consists of a yellow LED, located on the front side of the amplifier. Whenever a fault is present in the amplifier, the LED will be lit. If the fault is solved the LED will turn off. Disablement indicator The disablement indicator is a yellow LED located on the front side of the amplifier, labeled DISABLED. This LED will be lit when the amplifier is intentionally disabled where some of its functionality is disabled due to system testing. 4.6 User interface The amplifiers user interface utilizes the indicator LEDs, the display and the control button for interaction. The operator is presented with a graphical menu system where information can be viewed and basic test and monitoring tasks can be done. 4.7 Speaker loop interface The amplifiers has two independent audio outputs, each having the same interfaces as described below. Speaker loop outputs The loudspeaker output interface consists of: Low impedance output (8 ohm) 70 Volt line output 100 Volt line output These outputs are combined into one 5-pole pluggable screw terminal located at the rear end of the amplifier. 100 Volt 70 Volt Com 8 Ohm - 8 Ohm + Figure 16: Connection terminal Speaker output Speaker loop inputs The speaker loop input interface consists of: System Description Exigo Public Address and General Alarm System 37

50 Relay input 70 Volt line input 100 Volt line input These inputs are combined into one 5-pole pluggable screw terminal located at the rear end of the amplifier. The speaker loop input is used to connect a backup amplifier when required. 100 Volt 70 Volt Com Relay - Relay Speaker loop functions Figure 17: Connection terminal - Speaker input Audio channels The audio channels in the amplifier are independent of each other in regards to audio, control and monitoring. Each audio channel has its own connections for loudspeakers, 100 V RMS, 70 V RMS and low impedance (8 Ohm). The different output possibilities will always carry the same audio at the same time; they only have different electrical properties. Loop monitoring The amplifier monitors and reports the following on the loudspeaker outputs: Open loop Shorted loop Loop shorted to ground Load change or overload Monitoring can be done either continuously or by manual initiation. High voltage outputs The 100 V RMS and 70 V RMS outputs can be used to connect to transformer coupled loudspeakers, enabling the possibility of long loudspeaker loops with many loudspeakers connected. These outputs are monitored by the amplifier. Low impedance output The low impedance, 8 Ohm, output can be used for direct connection to loudspeakers without transformer coupling. This output is without monitoring, and therefore only recommended for audio verification purposes (e.g. local audio monitor loudspeaker). 38 System Description Exigo Public Address and General Alarm System

51 Backup amplifier The amplifier can be set up with a backup amplifier capable of taking over its speaker loops in case of faults. When configured as a backup, the amplifier is able to take over another amplifier s speaker loops without any interaction from the disabled amplifier or from the system controller. The speaker loop outputs from the backup amplifier are connected to the speaker loop inputs on the amplifier being backed up. One control output on the backup amplifier is required for each amplifier being backed up. This control output is used to control the internal line-switching relay of the amplifier. Line End Transponders Using optional Line End Transponders (LET / ELTSI) allows for a more detailed overview of faults on the audio loop. The LET is a small device, which is powered from, and communicates with the amplifier, over the loudspeaker line. The LET will report status back to the amplifier at regular intervals. Several LET units can be connected to the same loudspeaker loop (max. 10 per amplifier), allowing detailed monitoring of branches on the speaker loops. Network Amplifier LET #1 LET #2 LET #3 Figure 18: Branched loudspeaker loop example 4.9 Audio functions Audio quality Two audio modes are available on the amplifiers, Voice and HD mode. Voice mode will use G722 as the best audio codec, while HD mode will use PCM 48 khz 24 bit. G722 is limited to 8 khz while PCM supports up to 20 khz. Audio will in a zone be distributed with the best quality that all amplifiers support. If one amplifier is set to Voice mode all the audio will be distributed as G722, but if the voice-amplifier is not part of the zones the amplifiers will use PCM. Voice mode can be used if network bandwidth should be limited in a system. Volume control The amplifier is equipped with digital volume control for each audio channel. This allows different volume settings based on activity type or priority and is set through the configuration tool. System Description Exigo Public Address and General Alarm System 39

52 Equalizer The amplifier is equipped with powerful digital signal processing capabilities, allowing for numerous equalizer possibilities. Each audio channel can have 5 active filters, including high-pass, low-pass or band-pass. Each filter can be configured with gain, center frequency and bandwidth. Audio synchronization The audio played back by the amplifier is synchronized with every other playback device in the network, mainly other amplifiers Audio input interface The amplifiers audio inputs can be used as audio sources by the entire system. Audio sources like CD-players, radios and MP3-players can be connected for background music, or microphones can be directly connected as simple call stations. Line input One line input is located at the rear side of the amplifier and consists of a 3-pole pluggable screw terminal block. The terminal block offers a balanced input and ground (screen) and it is galvanically isolated from the system controller s power ground. The line input can be set up to feed audio into the system, most commonly for background music. The input level can be adjusted through configuration in order to facilitate the accommodation of several different audio sources. This input can also be used for audio integration from PBX or radio integration. Microphone input The microphone input is located at the rear side of the amplifier and consists of a 2-pole pluggable screw terminal block. The terminal block offers a balanced input with phantom power and ground (screen). The microphone input is equipped with phantom powering, so that a P12 compatible microphone can be connected directly. The input is also monitored, so that it will be detected if the microphone is missing or shorted. The monitoring is activated by default, but can be deactivated if the function is not needed. Each microphone input has automatic gain control (AGC), ensuring a consistent output volume even though different users may talk with different intensity. Monitoring Both audio inputs have detectors for pilot tones. These detectors will be able to detect a pilot tone of 20 khz generated by the connected equipment. The monitoring is not activated by default, but can be enabled per individual audio input if the function is required. 40 System Description Exigo Public Address and General Alarm System

53 4.11 Control I/O interface Control input interface The control input interface consists of one 12-pole pluggable screw terminal and is located on the rear side of the system controller. Each control input uses two poles, giving six control inputs. Figure 19: Connection terminal block Control inputs Control output interface The control output interface consists of six control outputs. All control outputs are located at the rear side of the system controller. Each output has a 24 V DC output and a relay that switch together. Two pins of each output offer 24 V DC and ground. Each output offers the common, normally open and normally closed terminals of the relay. 24V 0 V NO COM NC 24V 0 V NO COM NC 24V 0 V NO COM NC NO COM NC 24V 0 V NO COM NC 24V 0 V NO COM NC 24V 0 V Figure 20: Connection terminal block Control outputs Fault relay output The fault relay interface consists of a 3-pole pluggable screw terminal located at the rear side of the system controller. The terminal offers connection to the common, normally open and normally closed poles of the fault relay. The relay is energized when amplifier has connection with the system controller and no faults. This means that the following states are valid: NC-COM NO-COM FAULT System OK NC COM NO Figure 21: Connection terminal Fault relay System Description Exigo Public Address and General Alarm System 41

54 4.12 Control input functions The control inputs allow connection of any closing/opening circuit, i.e. switches or relays. The system controller will react to the change of state on any control input within 200 ms. The control inputs can be used to trigger actions in the system, such as starting an alarm or other actions available in the system. Trigger Each control input can be configured to activate on a closing or opening contact. Different audio activities can be assigned to the closing or opening of the contact allowing for a wide set of options. Monitoring The control inputs are by default set up to non-monitored. The monitoring can however be enabled per individual control input if the function is needed. For the monitoring to work, a pair of resistors must be connected at the remote end of the cable. This is shown in Figure 22. The monitoring will detect open circuits (disconnected cable) and short circuits on the control input cable Control output functions The control outputs are under individual control, and can be activated by any event in the system. Possible events include: Audio activity in a zone Local muting of speakers Active panel Priority level Faults Idle position of the control outputs are configurable, allowing for fail-safe connections to external equipment. Relay control outputs The relay control outputs will close the relay by energizing the relay coil when activated. Voltage control outputs The voltage control outputs will deliver 24 V DC on the associated terminal when activated. Max current is 200mA per output. 42 System Description Exigo Public Address and General Alarm System

55 4.14 Fault relay function The fault relay is permanently energized when the amplifier operates normally and no faults are present in the amplifier. The fault relay will fall back to the normally open state if the amplifier detects an internal fault (hardware or software) or loses power Headphone interface The headphone interface consists of a 3.5 mm jack located at the front side of the system controller. This interface allows connection of standard low impedance headsets for audio verification and for adjustments to line input and line outputs. Through the headphone interface, an operator can listen to any local channel / source in the device. Volume control The volume-setting submenu will allow the operator to change the output volume of the connected headphones Ethernet interface 100BASE-TX The 100BASE-TX interface offers two Ethernet ports in the form of two RJ45 connectors located on the rear side of the amplifier. Each Ethernet port is equipped with LED indicators for link and activity. These ports share the same IP address, and act as a redundant feed to the amplifier LAN network protocols All network connections on the amplifier are internally connected to a managed layer 2 switch, enabling a shared IP address for all ports. Every connection can therefore act as a backup for the other. The amplifier monitors all network connections, and will detect if a link is broken. The monitoring of network links is by default turned on, but can be deactivated if the function is not needed. Spanning tree protocol The amplifier supports STP (IEEE 802.1D), making it possible to have multiple network connections to the same network without creating network loops. This function allows multiple network connections to the amplifier, ensuring connection redundancy IP network protocols Configuration protocols ARP DHCP Open standard for resolution of IP addresses into MAC addresses. Open protocol used for dynamic configuration of hosts. System Description Exigo Public Address and General Alarm System 43

56 Zeroconf/ Bonjour TFTP Set of techniques that automatically create a usable Internet Protocol (IP) network without manual operator intervention or configuration servers. Open protocol for transfer of files. Management protocols NTP SNMP SMTP ZAP Open protocol for time synchronization. Open protocol for network management. Open protocol for reception and sending of . Proprietary protocol for configuration and management of Exigo units. VoIP protocols DTMF DIP RTP RTCP SDP Support for DTMF in RTP data. RFC 2833 (RTP Payload for DTMF Signals) RFC 2976 (SIP INFO) Proprietary protocol for fast transmission of control data and audio routing. Open protocol for transmission of real-time media. RFC 3550 Open protocol for control of the RTP stream RFC 3550 Open protocol for description of streaming media parameters. RFC Monitoring The amplifier continuously monitors all functions related to the proper operation of the audio distribution. This includes: Internal power rails Amplifier modules Temperature Ventilation fans Loudspeaker loops Internal software Amplifier configuration Control inputs Network connections 44 System Description Exigo Public Address and General Alarm System

57 Connection to system controller If a fault jeopardizing the operation of the amplifier occurs, the amplifier will detect this within 100 seconds and report it to the Exigo system controller. Internal power rails All internal power rails are continuously monitored by measuring the voltages. If the voltage is too high or too low, a fault will be generated and the event will be logged in the system controller. Amplifier modules The internal amplifier modules are continuously monitored for: Under voltage and over voltage Overload Short-circuit of outputs Overheating Temperature The temperature internally in the amplifier is measured continuously. If the temperature exceeds the upper limit of 75 C a fault will be triggered. Temperature faults, and even temperature shutdown, can also be triggered by local temperatures in amplifier modules or power supplies. Ventilation fans The ventilation fans in the amplifier are monitored by measuring the RPM of the fan. If the measured RPM is too low compared to what it should be, a fault will be triggered. Faults reported include: Missing fan Over speed (broken fan, slippage) Under speed (blockage, dust / dirt) Loudspeaker loops The loudspeaker loops can be monitored for ground faults, load changes, open line and shorted lines. The shorted line check will detect whether the line is shorted together or shorted to ground. Any overload event will disable the output to protect the amplifier. Which faults to report are configurable, so load changes may be disabled for loudspeaker loops that are exposed to too much wind. The amplifier measures the impedance of each loudspeaker loop and stores the value. If subsequent measurements detect that the measured value deviate from the stored value with more than an adjustable percentage, an open line fault will be reported. Loudspeaker monitoring can be continuous or by manual initiation. System Description Exigo Public Address and General Alarm System 45

58 Line End Transponder The line impedance measurements will give an overview of errors on the audio line. Line End Transponders (ELTSI/LET) can be added to give a better overview of the line. These will continuously be monitored by the amplifier and in case one is lost, a fault will be presented together with an optional description. This description is part of the configuration and can be used to describe where the ELTSI is placed for easier maintenance. Up to 10 ELTSI/LET can be distributed across the two speaker lines for each amplifier, and they do not need to be at the end of the line. Software Two watchdogs monitor all software processes running on the amplifier. The first watchdog is a software-based watchdog. This watchdog monitors the software processes and will log a fault and attempt to restart the process if the process hangs. The second watchdog is hardware-based which will reset the entire device if the software watchdog stops signaling it with keep-alive messages at regular intervals. Control inputs The control inputs are by default set up to be non-monitored. The monitoring can however be enabled per individual control input if the function is needed. For the monitoring to work, a pair of resistors must be connected at the remote end of the cable. This is shown in Figure 22. The monitoring will detect open circuits (disconnected cable) and short circuits on the control input cable. To control input R R Figure 22 Control input monitoring Network interfaces The amplifier will continuously check that the network interfaces are connected to either a switch or another system component. If the network link is disconnected, this will generate a fault in the system Maintenance functions Tick tone The amplifier can generate a tick tone and route this to the selected audio channels. This function can be used to verify the speakers. 46 System Description Exigo Public Address and General Alarm System

59 The tick tone can be various types of clicking sound, allowing for verification of multiple speaker channels at the same time. Zone wide tick tones can be started from a system input. In A-B systems, this can be done with different tick tones in the two systems allowing for verification of each system at the same time. Loop enable / disable The amplifier can activate / deactivate amplifier audio channel outputs, rendering the output free of any voltage. The system controller and the amplifier will enable their disabled indicators when speaker loops are disabled by this function. This function can be used when maintenance must be done on the system during operation. Indicator test The amplifier can initiate a test of all indicators. This test will activate the indicators on the amplifier, and turn them off again after 5 seconds. 5 Console mounted access panels 5.1 Versions ECPIR-P: PTT button call panel PTT button, speaker Gooseneck or handheld microphone The network call panel, ECPIR-P, is equipped with one PTT button. Expansion modules, such as EBMDR-8, can expand this access panel with additional buttons. The panel can be equipped with either gooseneck or handheld microphone and the button functionality is fully programmable. Figure 23: ECPIR-P System Description Exigo Public Address and General Alarm System 47

60 ECPIR-3P: Three buttons call panel 3 buttons, PTT button, speaker Optional gooseneck or handheld microphone The network call panel, ECPIR-3P, is equipped with three programmable buttons in addition to the PTT button. Expansion modules, such as the EBMDR-8, can be used together with this panel to expand the number of buttons. The buttons can be used to trigger any function in the Exigo system. A typical example for this panel is zone select used together with the PTT button. The panel can be equipped with either a gooseneck or handheld microphone. Figure 24: ECPIR-3P EAPIR-8: Eight buttons alarm panel 8 button extension module for the other indoor access panels The network alarm panel, EAPIR-8, is equipped with eight programmable buttons only. This unit is typically used to initiate different alarms or stored messages in the system. If more buttons is required, up to four EBMDR-8 expansion modules can be used. Figure 25: EAPIR-8 48 System Description Exigo Public Address and General Alarm System

61 EBMDR-8: Eight button expansion module The button expansion module can be used to add extra buttons to access panels. One EBMDR-8 unit contains eight programmable buttons and up to four EBMDR-8 can be connected to each Access panel. Figure 26: EBMDR Mechanical interface This chapter describes the interfaces common to all access panel models. Mounting interface The access panels are designed to be flush-mounted in operator consoles, but can be adapted to on-wall mounting by the means of a back-box. The access panel is secured to the console/backbox with four screws. Protection interface The electronics are protected from damage by an enclosure, which encapsulates everything except the different connectors. Connection interface All external connections to the access panel are made through a dedicated connection interface. These connections are only available for the installation personnel, and are located at the rear side of the access panel. Ethernet interface The Ethernet interface consists of two RJ45 ports located next to each other. These interfaces are identical with respect to functionality, and offer a redundant connection to the network. This interface can be used to connect to A and B systems. System Description Exigo Public Address and General Alarm System 49

62 I/O interface The I/O interface offers connections for general I/O, two small-signal relays, line out audio and an external power source. External power + External power - Relay, COM Relay, NO Relay, NC 5V output GND I/O 1 I/O 2 I/O 3 I/O 4 I/O 5 I/O 6 Line out + Line out - Figure 27: I/O interface TODO: FIXME 5.3 Indicator interface The indicator interface consists of three common indicators, which are present on all versions of access panels. Each programmable button on access panels with programmable buttons has two indicators. These are used for various purposes depending on the functionality of the button. The indicators are designed to be clearly visible in daylight, at a distance of one meter. A local brightness control allows adjustment of all indicators. Brightness control can be disabled through the configuration tool. Power indicator The power indicator interface consists of a single green light emitting indicator, visible at the front, clearly labeled Power. This indicator will be lit when the access panel is powered. Fault indicator The fault indicator interface consists of a single yellow light emitting indicator, visible at the front, clearly labeled Fault. This light emitting indicator will be lit when there are faults in the system. It is also possible to configure this LED so that it only shows faults on the access panel itself. If the access panel loses connection with all system controllers the LED will start to blink. Call indicator The call indicator interface consists of a single red light emitting indicator, visible at the front, clearly labeled Call. This light emitting indicator will be lit when the access panel is used and the microphone is active. Ethernet link indicator interface The Ethernet link indicator interface consists of two green and two yellow light emitting indicators, located at the circuit board, but visible through the protective cover from the back of the access panel. 50 System Description Exigo Public Address and General Alarm System

63 5.4 User interface Microphone interface The microphone interface on the ECPIR-P and the ECPIR-3P consists of a five-pole connector fastened to the front plate. This connector can be used to connect either a gooseneck microphone or a handheld microphone with PTT button. Microphone monitoring The microphone on the ECPIR-P and the ECPIR-3P is monitored by the access panel. If the microphone is faulty or removed, a fault will be generated and reported to the system controller. Loudspeaker The ECPIR-P and ECPIR-3P are equipped with a small loudspeaker, allowing the system to play back messages and give audible feedback to the operator. This is typically used for listening and verifying recall messages before dispatching them. Volume control button The ECPIR-P and ECPIR-3P are equipped with a volume control button, which can be used to adjust the volume on the panel s integrated loudspeaker. PTT button The ECPIR-3P and ECPIR-P are equipped with a dedicated PTT button. The default configuration of this button is to set up a call and broadcast the audio from the panel to the pre-programmed zones when pushed. This configuration can be adjusted or changed through the configuration tool. Programmable buttons All buttons on the access panels are programmable buttons, including the PTT button. This means that any function available in the system can be triggered by pressing the buttons. Functions can be assigned to the press of the key and / or the release of the key. Typically, the buttons are used to select zones and / or programmed messages and alarms, but the buttons can also be used to indicate system status or zone activity for example. Button access protection Each button except for the PTT button is equipped with access protection caps, meaning that a cap must be flipped up before the button can be pressed. The cap can be removed if not required. Button labels All the buttons are equipped with a labeling solution allowing permanent marking of the button s functionality. The PTT button does not have a labeling solution. System Description Exigo Public Address and General Alarm System 51

64 Backlight The access panel s buttons and labels are equipped with backlight, enabling functionality to be legible even in dark environments. Dimmer The backlight s intensity can easily be adjusted by the operator in order to avoid loss of night vision. The backlight can be adjusted locally from the dedicated button on the access panel. Dimming of the backlight will also dim the intensity of the different light emitting indicators accordingly. This control can be disabled through the configuration tool. 5.5 Eight buttons expansion module, EBMDR-8 The button expansion module has no Ethernet connections, and must always be connected to a master access panel. This unit will receive backlight information from the access panel, and is therefore not equipped with dimmer buttons and status indicators. Up to four expansion modules can be connected to each master panel. Programmable buttons The eight programmable buttons on the EBMDR-8 are freely programmable, meaning that any function available in the system can be triggered by pressing the buttons. Functions can be assigned to the press of the key and / or the release of the key. Typically, the buttons are used to select zones and / or programmed messages and alarms. Button access protection Each button is equipped with access protection caps, meaning that a cap must be flipped up before the button can be pressed. The cap can be removed if not wanted. Button labels The programmable buttons on the EBMDR-8 are equipped with a labeling solution allowing permanent and indelible marking of the button s functionality. 5.6 Power functions Power redundancy The access panels can be powered from two independent sources: PoE on one of the two Ethernet interfaces and separate power input. The access panel will operate on the power from the different sources in the following prioritized order: 1. PoE from one Ethernet port 2. Dual PoE-injection over spare-pair (Type B) 52 System Description Exigo Public Address and General Alarm System

65 3. Separate power supply on DC-input 5.7 Inputs and output functions General purpose I/O The six general inputs / outputs can be configured, per I/O, to be either an input or an output. As inputs, they trigger on a closing contact. As outputs, they deliver 5V capable of driving loads up to 12 ma. Inputs can be used to initiate any function in the system, just like the programmable buttons. Outputs are controlled from the central equipment, and are fully programmable. Control relay output The two control relays are controlled from the central equipment and can be programmed to switch over at any event in the system. One typical use is to disconnect the local speaker loop during a broadcast to avoid feedback. Expansion relay Two additional high power relays can be added with the TA-10 relay module. These are capable of switching up to 6A current 400Vac / 48Vdc and can be used to control flashing light systems. 5.8 Monitoring Microphones All microphone inputs are monitored, meaning that it will be detected if the microphone is missing or shorted. The monitoring is activated by default, but can be deactivated in software if the function is not required or needed. Software The software running internally in the access panel is continuously monitored. If the software is corrupted or stops working properly, a fault will be reported and the access panel will attempt to restart. Configuration The access panel will regularly check that its configuration is intact. Any changes to the configuration in the system controller will be updated in the access panel. Network interfaces The access panel will continuously check that the Ethernet interfaces have a link to the central equipment. If monitoring is enabled on the Ethernet interface a fault will be generated if the network port is disconnected from the network switch. System Description Exigo Public Address and General Alarm System 53

66 5.9 Microphone input functions Input level sensitivity Microphone input sensitivity can be adjusted to fit the environment. Input level control The microphone input has automatic gain control (AGC), ensuring a consistent output volume even though different users may talk with different intensity. This is typically used in noisy areas to reduce the impact of continuous noise Audio output functions Loudspeaker output The small-integrated loudspeaker is used to play back recall messages, so that the operator can listen and verify before the message is broadcasted. The speaker is also used for other functions, e.g. reading the IP address of the unit aloud when the device is not connected to the system controller. Microphone audio can also be routed from other access panels to the loudspeaker output to verify the functionality of the remote microphone. This is commonly done to test microphones in exposed areas LAN network protocols Spanning tree protocol The access panel supports STP (IEEE 802.1D) and RSTP (IEEE 802.1W), making it possible to have multiple network connections to the same network without creating network loops. This function allows multiple network connections to the access panel, ensuring connection redundancy IP network protocols Configuration protocols ARP DHCP Zeroconf/ Bonjour TFTP Open standard for resolution of IP addresses into MAC addresses. Open protocol used for dynamic configuration of hosts. Set of techniques that automatically create a usable Internet Protocol (IP) network without manual operator intervention or configuration servers. Open protocol for transfer of files. 54 System Description Exigo Public Address and General Alarm System

67 Management protocols NTP SNMP ZAP Open protocol for time synchronization. Open protocol for network management. Proprietary protocol for configuration and management of Exigo units. VoIP protocols DTMF DIP RTP RTCP SDP SIP Support for DTMF in RTP data. RFC 2833 (RTP Payload for DTMF Signals) RFC 2976 (SIP INFO) Proprietary protocol for fast transmission of control data and audio routing. Open protocol for transmission of real-time media. RFC 3550 Open protocol for control of the RTP stream RFC 3550 Open protocol for description of streaming media parameters. RFC 4566 Open protocol for initiation and setup of communication channels over IP. RFC 3261 (SIP base standard) RFC 3215 (SIP REFER) RFC 2976 (SIP INFO) Microphone settings The microphone sensitivity can be adjusted and automatic gain control (AGC) can be enabled on the microphone. This ensures better audio quality in the system. Microphone monitoring The microphone is monitored on all access panels. Network call panels perform the monitoring and report a faulty microphone back to the system controller. Software A watchdog monitors the software processes and will log a fault and attempt to restart the process if the process hangs. Indicators All access panels have a set of indicators indicating the status of the panel: Power LED: Indicates if the panel has power or not System Description Exigo Public Address and General Alarm System 55

68 Fault LED: Indicates if the panel has a fault. This LED can also be used to indicate faults in the system on other devices. Call LED: Indicates if the microphone is active. Button indicator LEDs: Red and blue indicator on each button to indicate various statuses depending on the function. I/O All access panels, except for the EX panels, have six general-purpose inputs/outputs and two small signal relays. These are fully programmable and can be used to trigger an activity in the system or to trigger on any activity in the system. The EAPFX-1 and EAPFX-6 does not have any input/outputs. Power All the access panels can be directly powered with 24-48Vdc or over the network with PoE. The EAPFX-1 and EAPFX-6 can only be powered over the Flowire interface. Network All access panels have two network interfaces. Both network ports can be monitored and will report a fault if they are disconnected. This is useful in systems where both network ports are used to increase redundancy. The EAPFX-1 and EAPFX-6 access panels use the Flowire Ethernet over 2-wire connection for connection to the system. This is a bus-based protocol and the network connections are not monitored. The Flowire devices used in the system racks are monitored and will report a fault if the connection is lost. 6 Industrial access panels Industrial access panels are designed for use in exposed areas and offer IP66 protection. Ambient temperature range spans from -40C to +60C. 6.1 Versions EAPII-1: One button industrial access panel 1 button and embedded microphone Optional handheld microphone IP-66 Optional relay board, TA10 56 System Description Exigo Public Address and General Alarm System

69 The industrial, one button access panel, EAPII-1, is equipped with one programmable button and a built-in microphone. Connections for an optional handheld PTT microphone is available. Figure 28: EAPII-1 and EAPII-6 EAPII-6: Six button industrial access panel 1 button and embedded microphone Optional handheld microphone IP-66 Optional relay board, TA10 The industrial, six buttons access panel, EAPII-6, is equipped with six programmable buttons and a built-in microphone. Connections for an optional handheld PTT microphone is available. 6.2 Mechanical interface This chapter describes the mechanical interface of the industrial access panels. Mounting interface The access panels are designed for on-wall mounting, and can be secured to the wall using four rugged screws. Protection interface The electronics are protected from damage by being securely placed in the rear part of the panel s back-box. System Description Exigo Public Address and General Alarm System 57

70 Connection interface All external connections to the access panel are made through a dedicated connection interface. These connections are only available for the installation personnel, and are located inside the access panel. Four cable glands are available at the bottom of the station for waterproof connection of the external wiring. Ethernet interface The Ethernet interface consists of two RJ45 ports located next to each other. These interfaces are identical with respect to functionality, and offer a redundant connection to the network, or individual connections to A and B systems. I/O interface The I/O interface offers connections for general I/O, two small-signal relays, line out audio and an external power source. A connection for the high power relay module TA-10 is also available inside the access panel. External power + External power - Relay, COM Relay, NO Relay, NC 5V output GND I/O 1 I/O 2 I/O 3 I/O 4 I/O 5 I/O 6 Line out + Line out - Figure 29: I/O interface TODO: FIXME: Handheld microphone interface The handheld microphone interface consists of a four-pole screw terminal block, enabling the handheld microphone to be connected. Mic+ PTT Figure 30: Connection of handheld microphone Internal microphone interface The internal microphone interface consists of a two-pole screw terminal block, allowing the internal microphone to be connected to the access panel. Mic- Mic- Mic+ Figure 31: Microphone connection 58 System Description Exigo Public Address and General Alarm System

71 6.3 Indicator interface The indicator interface consists of three common indicators, which are present on all versions of access panels. Each programmable button on the access panel has two indicators per button. These are used for various purposes depending on the functionality of the button. The indicators are designed to be clearly visible in daylight, at a distance of one meter. Power indicator The power indicator interface consists of a single green light emitting indicator, visible at the front, clearly labeled Power. This indicator will be lit when the access panel is powered. Fault indicator The fault indicator interface consists of a single yellow light emitting indicator, visible at the front, clearly labeled Fault. This light emitting indicator will be lit when there are faults in the system. It is also possible to configure this LED so that it only shows faults on the access panel itself. If the access panel loses connection with all system controllers the LED will start to blink. Call indicator The call indicator interface consists of a single red light emitting indicator, visible at the front, clearly labeled Call. This light emitting indicator will be lit when the access panel is used and the microphone is active. Ethernet link indicator interface The Ethernet link indicator interface consists of two green and two yellow light emitting indicators, located at the circuit board, but visible through the protective cover from the back of the access panel. 6.4 User interface Microphone monitoring The microphones available on the industrial access panels are monitored. This means that if the microphone is faulty or removed a fault will be generated and reported to the system controller. Programmable buttons All buttons on the access panels are programmable buttons, including the button on the handheld PTT microphone. This means that any function available in the system can be triggered by pressing the buttons. Functions can be assigned to the press of the key and / or the release of the key. Typically, the buttons are used to select zones and / or programmed messages and alarms, but the buttons can also be used to indicate system status or zone activity for example. System Description Exigo Public Address and General Alarm System 59

72 Button access protection Many installations require dual-action triggering of functions, typically the initiation of alarms. It is therefore possible to equip the programmable buttons with access protection caps, meaning that a cap must be flipped up before the button can be pressed. Button labels The programmable buttons are equipped with a labeling solution allowing permanent marking of the button s functionality. 6.5 Power functions Power redundancy The access panels can be powered from two independent sources: PoE on one of the two Ethernet interfaces and separate power input. The access panel will operate on the power from the different sources in the following prioritized order: 1. PoE from one Ethernet port 2. Dual PoE-injection over spare-pair (Type B) 3. Separate power supply on DC-input 6.6 Inputs and output functions General purpose I/O The six general inputs/outputs can be configured, per I/O, to be either an input or an output. As inputs, they trigger on a closing contact. As outputs, they deliver 5V capable of driving loads up to 12 ma. Inputs can be used to initiate any function in the system, just like the programmable buttons. Outputs are controlled from the central equipment, and are fully programmable. Control relay output The two control relays are controlled from the central equipment and can be programmed to switch over at any event in the system. One typical use is to disconnect the local speaker loop during a broadcast to avoid feedback. Expansion relay Two additional high power relays can be added with the TA-10 relay module. These are capable of switching up to 6A current 400Vac / 48Vdc and can be used to control flashing light systems. 60 System Description Exigo Public Address and General Alarm System

73 6.7 Monitoring functions Microphones All microphone inputs are monitored, meaning that it will be detected if the microphone is missing or shorted. The monitoring is activated by default, but can be deactivated in software if the function is not required or used. Software The software running internally in the access panel is continuously monitored. If the software is corrupted or stops working properly, a fault will be reported and the access panel will attempt to restart. Configuration The access panel will regularly check that its configuration is intact. Any changes to the configuration in the system controller will be updated in the access panel. Network interfaces The access panel will continuously check that the Ethernet interfaces have a link to the central equipment. If monitoring is enabled on the Ethernet interface a fault will be generated if the network port is disconnected from the network switch. 6.8 Microphone input functions Input level sensitivity Microphone input sensitivity can be adjusted to fit the environment. Input level control The microphone input has automatic gain control (AGC), ensuring a consistent output volume even though different users may talk with different intensity. This is typically used in noisy areas to reduce the impact of continuous noise. 6.9 LAN network protocols Spanning tree protocol The access panel supports STP (IEEE 802.1D) and RSTP (IEEE 802.1W), making it possible to have multiple network connections to the same network without creating network loops. This function allows multiple network connections to the access panel, ensuring connection redundancy. System Description Exigo Public Address and General Alarm System 61

74 6.10 IP network protocols Configuration protocols ARP DHCP Zeroconf/ Bonjour TFTP Open standard for resolution of IP addresses into MAC addresses. Open protocol used for dynamic configuration of hosts. Set of techniques that automatically create a usable Internet Protocol (IP) network without manual operator intervention or configuration servers. Open protocol for transfer of files. Management protocols NTP SNMP ZAP Open protocol for time synchronization. Open protocol for network management. Proprietary protocol for configuration and management of Exigo units. VoIP protocols DTMF DIP RTP RTCP SDP SIP Support for DTMF in RTP data. RFC 2833 (RTP Payload for DTMF Signals) RFC 2976 (SIP INFO) Proprietary protocol for fast transmission of control data and audio routing. Open protocol for transmission of real-time media. RFC 3550 Open protocol for control of the RTP stream RFC 3550 Open protocol for description of streaming media parameters. RFC 4566 Open protocol for initiation and setup of communication channels over IP. RFC 3261 (SIP base standard) RFC 3215 (SIP REFER) RFC 2976 (SIP INFO) 62 System Description Exigo Public Address and General Alarm System

75 7 Industrial EX access panels Industrial EX access panels are designed for use in exposed hazardous areas. The Exigo Industrial EX panels are rated to Ex II 2G ib mb e IIC T4 (-20C < T amb < +60C) 7.1 Versions One button access panel 1 button and embedded microphone Optional handheld microphone Ex mb ib e IIC T4 Gb The industrial, one button access panel, EAPFX-1, is equipped with one programmable button and an in built microphone. Connections for an optional handheld PTT microphone are available. Figure 32: EAPFX-1 and EAPFX-6 Six buttons access panel 6 buttons and embedded microphone Optional handheld microphone Ex mb ib e IIC T4 Gb The industrial, six button access panel, EAPFX-6, is equipped with six programmable buttons and an in built microphone. Connections for an optional handheld PTT microphone are available. System Description Exigo Public Address and General Alarm System 63

76 7.2 Mechanical interface This chapter describes the interfaces common to all EX models. Mounting interface The access panels are designed for on-wall mounting, and can be secured to the wall using four rugged screws. The instructions from A100K11523 Exigo & Turbine Ex Mounting Manual describe how to mount the EX panels and must be followed during installation. Connection interface All external connections to the access panels are made through a dedicated connection interface. These connections are only available for the installation personnel, and are located in a dedicated watertight compartment of the back-box. Only connections intended for installation purposes are available in this compartment. All connections available to installation personnel are protected and labeled as required by IEC Flowire interface The Flowire interface consists of one rugged, four-pole screw terminal block, enabling the access panel to be connected to two system racks at the same time. This terminal block is capable of terminating a rugged installation cable up to AWG 13. Flowire B - Flowire B + Flowire A - Flowire A + Figure 33: Flowire connection for EAPFX-x Handheld microphone interface The handheld microphone interface consists of a four-pole screw terminal block, enabling the handheld microphone to be connected. Mic+ Mic- PTT Figure 34: Connection of handheld mic for EAPFX-x Internal microphone interface The internal microphone interface consists of a two-pole screw terminal block, which is used by the internal microphone mounted on the front. 64 System Description Exigo Public Address and General Alarm System

77 Mic- Mic+ 7.3 Indicator interface Figure 35: Connection of internal microphone to EAPFX-x The indicator interface consists of three common indicators, which are present on all versions of access panels. Each programmable buttons on the access panel has two indicators per button. These are used for various purposes depending on the functionality of the button. The indicators are designed to be clearly visible in daylight, at a distance of one meter. Power indicator The power indicator interface consists of a single green light emitting indicator, visible at the front, clearly labeled Power. This indicator will be lit when the access panel is powered. Fault indicator The fault indicator interface consists of a single yellow light emitting indicator, visible at the front, clearly labeled Fault. This light emitting indicator will be lit when there are faults in the system. It is also possible to configure this LED so that it only shows faults on the access panel itself. If the access panel loses connection with all system controllers the LED will start to blink. Call indicator The call indicator interface consists of a single red light emitting indicator, visible at the front, clearly labeled Call. This light emitting indicator will be lit when the access panel is used and the microphone is active. 7.4 User interface Microphone monitoring The microphones available on the EX access panels are monitored. This means that if the microphone is faulty or removed a fault will be generated and reported to the system controller. Programmable buttons All buttons on the access panels are programmable buttons, including the button on the handheld PTT microphone. This means that any function available in the system can be triggered by pressing the buttons. Functions can be assigned to the press of the key and / or the release of the key. Typically, the buttons are used to select zones and / or programmed messages and alarms, but the buttons can also be used to indicate system status or zone activity for example. System Description Exigo Public Address and General Alarm System 65

78 Button access protection Many installations require dual-action triggering of functions, typically the initiation of alarms. It is therefore possible to equip the programmable buttons with access protection caps, meaning that a cap must be flipped up before the button can be pressed. Button labels The programmable buttons are equipped with a labeling solution allowing permanent marking of the button s functionality. 7.5 Power functions Power The EX access panels are powered by 24Vdc over the Flowire link. Power redundancy The access panels can be powered from both Flowire connections simultaneously. This means that the access panel is operational even if one of the central equipment racks should fail, and stop providing power to the access panel. 7.6 Monitoring functions Microphones All microphone inputs are monitored, meaning that it will be detected if the microphone is missing or shorted. The monitoring is activated by default, but can be deactivated if the function is not used or required. Software The software running internally in the access panel is continuously monitored. If the software is corrupted or stops working properly, a fault will be reported and the access panel will attempt to restart. Configuration The access panel will regularly check that its configuration is intact. Any changes to the configuration in the system controller will be updated in the access panel. 7.7 Microphone input functions Input level sensitivity Microphone input sensitivity can be adjusted to fit the environment. 66 System Description Exigo Public Address and General Alarm System

79 Input level control The microphone input has automatic gain control (AGC), ensuring a consistent output volume even though different users may talk with different intensity. This is typically used in noisy areas to reduce the impact of continuous noise. 7.8 IP network protocols Configuration protocols ARP DHCP Zeroconf/ Bonjour TFTP Open standard for resolution of IP addresses into MAC addresses. Open protocol used for dynamic configuration of hosts. Set of techniques that automatically create a usable Internet Protocol (IP) network without manual operator intervention or configuration servers. Open protocol for transfer of files. Management protocols NTP SNMP ZAP Open protocol for time synchronization. Open protocol for network management. Proprietary protocol for configuration and management of Exigo units. VoIP protocols DTMF DIP RTP RTCP SDP SIP Support for DTMF in RTP data. RFC 2833 (RTP Payload for DTMF Signals) RFC 2976 (SIP INFO) Proprietary protocol for fast transmission of control data and audio routing. Open protocol for transmission of real-time media. RFC 3550 Open protocol for control of the RTP stream RFC 3550 Open protocol for description of streaming media parameters. RFC 4566 Open protocol for initiation and setup of communication channels over IP. RFC 3261 (SIP base standard) RFC 3215 (SIP REFER) RFC 2976 (SIP INFO) System Description Exigo Public Address and General Alarm System 67

80 8 Exigo Kits Exigo supports Vingtor Stentofon kits. These kits can be used to expand the system with more IO and audio inputs or to expand the system with more remote IO. 8.1 Versions Figure 36: TKIS-2 and TKIE-2 TKIS-2 One network interface Mic input Amplifier output and line output One relay 6 GPIO TKIE-2 Two network interfaces Mic input and Line input Amplifier output and line output Two relays 6 GPIO 68 System Description Exigo Public Address and General Alarm System

81 8.2 Functions Audio Output: Audio outputs can be part of any zone in the Exigo system. This is useful if the kit is used as an interface to an external audio system. Input: Audio program is used to route the audio inputs to any zones and can be controlled by IO or buttons. This is typically used to route audio from an analog system into the Exigo system. Sensitivity adjustments and AGC is available on all audio inputs. I/O The relays available are small signal relays with potential free outputs useful for indication to external systems. The general-purpose input/outputs can be set to either input or output. They are 5V signals, which can be used to trigger small relays as outputs. If the GPIO is used as an input, it can be shorted to indicate a changing state. Power The kits can be powered directly with 24-48V or over PoE through the network interface. Network The network interface can be monitored and a fault will be reported if either of the network interfaces are disconnected. 9 IP based loudspeakers The Exigo system includes support for Vingtor-Stentofon IP based loudspeakers. The loudspeaker has digitally controlled volume and a maximum music effect of 10 watt. Two IP loudspeakers are available, ELSIR-10C Ceiling loudspeaker and ELSII-10H Horn loudspeaker. System Description Exigo Public Address and General Alarm System 69

82 Figure 37: ELSIR-10C and ELSII-10H The loudspeakers can be part of a single micro zone, or be included in larger zones. The loudspeaker will be continuously monitored by the system and is powered over PoE. 10 Line End Transponders Figure 38: ELTSI The Line End Transponders (ELTSI) is for monitoring purposes in the Exigo system and is mounted on the loudspeaker loops. The ELTSI will give reliable detection of faulty loudspeaker loops Versions Industrial line end transponder The industrial line end transponder is a rugged device intended for mounting in exposed or sheltered areas on the speaker loop Mounting interface The LET can be mounted to flat surfaces using the four screw holes in the housing. 70 System Description Exigo Public Address and General Alarm System

83 10.3 Speaker loop interface Primary line connection The primary line connection interface consists of a rugged IP68 PG cable gland (PK10) in the ELTSI housing, and a 2-pole 2.5 mm² spring-loaded connector inside the housing. This interface allows fast and simple connection of rugged speaker cables to the LET. Secondary line connection The secondary line connection interface consists of a blinded cable entry in the housing and a 2- pole 2.5 mm² spring-loaded connector inside the housing. This interface can be used if the ELTSI is to be placed inline on the speaker loop. The blinded cable entry should then be opened and substituted with the accompanying IP68 PG cable gland (PK10) Power functions The ELTSI is powered over the loudspeaker line with a pilot tone Indicator interface Status indicator The status indicator interface consists of one green LED, visible through the transparent ELTSI housing, used to indicate the status of the ELTSI Status indicator functions Connected If the ELTSI is fully functional and has connection with an amplifier, the status indicator will blink once every 10 th second. Lost connection If the ELTSI loses the connection with the amplifier, it will blink twice every 10 th second. It will also signal its address by blinking the number of times. The address signaling is done once every 30 th second. No connection after power up If the ELTSI have no connection with the amplifier after power up, it will blink three times every 10 th second. It will also signal its address by blinking the number of times. The address signaling is done once every 30 th second. System Description Exigo Public Address and General Alarm System 71

84 No power If the ELTSI has no power, the status indicator will not be lit Address setting Address setting interface The address-setting interface consists of a rotary switch inside the ELTSI housing. Each amplifier can support up to 10 ELTSI with unique addresses Operation The ELTSI will continuously receive and respond to status queries from the amplifier driving the speaker loop. If the ELTSI reports a problem, or does not respond at all, the amplifier will raise a fault in the system. 72 System Description Exigo Public Address and General Alarm System

85 11 Configuration and maintenance 11.1 Configuration Exigo Management Tool and the device web interface is used for configuration of the Exigo system. Exigo Management Tool The Exigo Management Tool is a tool for configuration and monitoring of the Exigo system. It is self-contained, simple to install and use. Figure 39: Exigo Management Tool When a new module shall be configured, the module is given a working default factory setting. The operator can then modify the settings such as: Volume settings Zone definitions Call priorities Interfaces to external systems Interfaces to radio, ipbx, paging and other analog audio systems. System Description Exigo Public Address and General Alarm System 73

86 The Exigo Management Tool connects to the system via the IP network and can be used online or offline. Exigo-Web The Exigo-Web is an embedded web interface running on all Exigo devices. It allows users to log on, using standard web browsers such as Internet Explorer and Firefox, for basic functions such as: System Monitoring System Configuration System Upgrade 11.2 System maintenance Maintenance of system controller The configuration of the system controller s main processor board can be backed up to a PC and restored to another board. The system controller s main processor board is pluggable and can be changed by opening the front. Maintenance on speaker loops The amplifier can deactivate its amplifier loop outputs, rendering the output free of any voltage by disabling the amplifier circuit. The system controller and the affected amplifier(s) will enable their disabled indicators when speaker loops are disabled by this function and generate a warning which will log the event. This function can be used when maintenance must be done on speaker loops during operation. Tick tone All amplifiers contain an embedded tick tone generator. This allows each amplifier to have a tick tone on each speaker channel without affecting other parts of the system. Tick tones can also be started from dedicated buttons. This function can be configured to have different tick tones in amplifier for A and B systems. Indicator test Indicator test is activated locally on the amplifiers. The test will turn on the indicators (visible and audible) for the device only. The indicators will be activated for 5 seconds, and then be turned off. Dedicated buttons can be configured on access panels, which allows for an indicator test on a per panel basis. 74 System Description Exigo Public Address and General Alarm System

87 Microphone test A function can be added to each access panel with a speaker allowing for a microphone test. This will test the complete microphone path from the microphone to the system controller and back again Access Rights, Authorization and Login The Exigo system provides User Management features where users of the Exigo system management tools are granted different access rights and authorization levels. The following authorization levels are supported: Read-only users Read/write users Read-only users: Read/write users: Read-only users can only read out status information from the system Read/write users can do system configuration of the system Login Exigo-Web users have to log in with a username and password. When using the display and rotary switch on system controllers and amplifiers, users must log in with a PIN code. Each log in will be logged in the syslog with user ID and time of log in / log out. 12 Alarm generator The Exigo alarm generator comprises two major components, the tone generator and the alarm pattern generator. The tone generator can create a multitude of tones, while the alarm pattern generator can use these to form complex alarm signals Tones Steady tones are defined as tones with a steady frequency and amplitude. For steady tones, a steady frequency and steady amplitude are the only parameters. Wave forms The tone generator can synthesize one wave form: Sine wave: Standard sine wave with steady frequency and amplitude. Duty cycle is always 50%. Frequency The frequency for sinewaves can be set to a value between 200 Hz and 7 khz. System Description Exigo Public Address and General Alarm System 75

88 Amplitude The amplitude for the tone can be adjusted as a relative value between 1 and 100 in increments of 1. This regulates the relative amplitude of the signal, i.e. the amplitude of the signal generated from the tone generator Alarm composition Alarms can be composed of different tones and periods of silence in sequence, and can be graphically represented as below. ALARM SEQUENCE TONE 1 TONE 2 SILENCE TONE 1 TONE 2 STORED MESSAGE Figure 40: Alarm pattern example Tones The tones can be added from the collection of tones available from the tone generator. For each tone, a duration can be set, specifying how long the tone should be kept going. For steady tones, this duration can be set as a time in seconds, with a resolution of 100 ms from 0.1 to 15 seconds. For variable tones, the duration can be set as a time in seconds as well, but the resolution will be the duration of the tone itself. It is also possible to set the duration as a multiple of the tone, i.e. repetitions of the tone. Silence Silence can be added from the collection of tones available from the tone generator. This is a special tone, which cannot be altered. The duration of silence can be set as a time in seconds, with a resolution of 100 ms from 0.1 to 15 seconds Alarm synchronized control output For some alarms, it is important to be able to control an output in synchronization with the alarm. This is typically used to control other alarm systems, like the Typhoon horn (foghorn). Synchronized control outputs can be added to the alarm sequence as shown below. DURATION SEQUENCE ALARM SEQUENCE TONE 1 TONE 2 SILENCE TONE 1 TONE 2 STORED MESSAGE SYNCHRONIZED CONTROL OUTPUT Figure 41: Synchronized control output 76 System Description Exigo Public Address and General Alarm System

89 12.4 Alarm synchronized with input The alarm generator can also act as a slave to an input (Control input or manual button). This allows for integration and synchronization of other alarms into the system generated by external systems. Input signal Alarm pattern Tone Silence Tone Silence Figure 42: Synchronized control input 12.5 Special alarms Special alarms such as bells and special audio messages can be uploaded as WAV files to the system controller. System Description Exigo Public Address and General Alarm System 77

90 78 System Description Exigo Public Address and General Alarm System

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