i-modul Modem 3.1 PRO

Transcription

1 i-modul Modem 3.1 PRO i-modul Modem 144/336/56k Pro 3.1 Designer's Guide

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3 Copyright June 17 INSYS MICROELECTRONICS GmbH Any duplication of this manual is prohibited. All rights on this documentation and the devices are with INSYS MICROELECTRONICS GmbH Regensburg. Trademarks The use of a trademark not shown below is not an indication that it is freely available for use. MNP is a registered trademark of Microcom Inc. IBM PC, AT, XT are registered trademarks of International Business Machine Corporation. INSYS, e-mobility LSG and e-mobility PLC are registered trademarks of INSYS MICROELECTRONICS GmbH. Windows is a registered trademark of Microsoft Corporation. Linux is a registered trademark of Linus Torvalds. Publisher: INSYS MICROELECTRONICS GmbH Hermann-Köhl-Str. 22 D Regensburg, Germany Phone: Fax: info@insys-icom.com Internet: Date: Jun-17 Item: Version: 2.0 Language: EN

4 Content 1 Technical Data Physical Features Technological Features Connections PCB Layout Pin Layout Terminal Strip P Pin Layout Terminal Strip P Connection Example for Audio Interface for SP Version Function Overview Meaning of the Symbols and the Formatting in this Manual Operating Principle Operation with the Terminal Program Functions Select Country-Spezific Settings Automatic Baud Rate Detection Serial Connection Phone connection Data Buffer for Serial Data Transmission Bit Direct Mode Data Flow Control (Handshake) Hardware data flow control (RTS/CTS) Software data flow control (XON/XOFF) Error Correction Data Compression Selective Call Acceptance Switching Outputs Alarm Inputs Sending messages via Data connection, SMS or Fax Manual Sending of Messages Switching on the Remote Configuration Remote Configuration of the i-modul Modem 3.1 PRO Switching / Querying of the Outputs / Activate Inputs via DTMF Switching of the Outputs / Queries of the Inputs via DTMF Access Control and Security Callback Idle Connection Control with Data Transmit Control Priority Circuit for a Phone Connected in Series to the i-modul Modem 3.1 PRO Automatic Dial-Up Delay User Profiles Changing the Configuration Saving the Configuration Reset Jun-17

5 Contents 7 Maintenance AT Command Reference AT Messages Country Codes S Registry Overview S Registry Description S Registry SMS Provider / Service Center Alarm via SMS Alarm Using via SMS CE/EMC Compliant Integration Your Application Application Interface / Terminal Strip P Network Interface / Terminal Strip P2 (for Modem /ISDN) Antenna Connection (if equipped) Further Recommendations Reference Documents Declaration of Conformity Tables and Diagrams List of Tables List of Diagrams Index Jun-17 5

6 Technical Data i-modul Modem 3.1 PRO 1 Technical Data 1.1 Physical Features All specified data was measured with a nominal input voltage, at full load, and an ambient temperature of 25 C. The threshold value tolerances are subject to typical fluctuations. Physical Feature Operating voltage HIGH level alarm input V IH LOW level alarm input V IL HIGH level alarm output V OH (3.3 V CMOS compatible) LOW level alarm output V OL Input current of GND to internal V CC Maximum output current for state LOW I OLmax Maximum output current for state HIGH I OHmax Total current consumption in idle Total current consumption in active state Total current consumption in maximum Total current consumption in sleep mode Speaker output audio interface, minimum impedance Microphone input audio interface, input impedance Microphone input audio interface, AC input voltage Weight Dimensions (Width x Depth x Height) Height of the terminal strip above PCB PCB thickness Value +5 V (±5%) DC or +3.3 V (±5%) DC (depending on version) > 2 V (max. V CC) < 0.8 V >2.4 V < 0.4 V typical 0.5 ma 1.6 ma 100 μa approx. 200 ma approx. 240 ma approx. 400 ma approx. 60 ma 300 Ω >70 kω 2.2 VPP approx. 25 g 56.4 mm x 56.4 mm x 11 mm 6.5 mm 1.6 mm 6

7 i-modul Modem 3.1 PRO Technical Data Physical Feature Value Temperature range 0 C 70 C Maximum allowed humidity Table 1: Physical Features 1.2 Technological Features Technological Feature Supported data compression standards 95% non-condensing Description Fax-Classes Fax Class 1/2 Modulation types Error correction standards Voice functionality, sample encoding Table 2: Technological Features MNP 2/3, MNP 5, V.42 bis; V.44, MNP 10, MNP 10 EC V.32bis, V.32, V.23, V.22, V22 bis, V21, V.34+, V.34, V.42, (for 56k version additionally V.90 and V.92)Bell standard 103/212 MNP4, LAPM Linear PCM (8bit), ADPCM (2bit, 4 bit), IMA- ADPCM (4 bit) 7

8 Connections i-modul Modem 3.1 PRO 2 Connections 2.1 PCB Layout P2 P1 Figure 1: PCB layout, terminal strip and fixing hole position Pos. Type Description P1 SAMTEC TW series 2-row 2 mm Serial interface, inputs/outputs, audio pitch or Fischer SLY Z P2 SAMTEC TW series 2-row 2 mm pitch or Plastron PQFZ-06S-VK-024 or Fischer SLY 6 Phone network interface Table 3: Specification and assignment of the terminal strips 8

9 i-modul Modem 3.1 PRO Connections 2.2 Pin Layout Terminal Strip P1 Pin Type Signal Description 1 GND Ground of supply voltage (ground) 2 Supply VCC 5 V DC supply voltage (or 3,3 V) 3 GND Ground of supply voltage (ground) 4 Input TXD Terminal transmit signal of RS-232 line; TTL level 5 GND Ground of supply voltage (ground) 6 Output RXD Receive signal of RS-232 line; TTL level 7 Output ID-PIN2 Ground 8 Input RTS~ Request to Send; TTL level (RS-232 signal) 9 Output ID-PIN1 GND 10 Output CTS~ Clear To Send; TTL level (RS-232 signal) 11 Input RESET~ RESET, TTL level, tmin = 3 s 12 Input DTR~ Data Terminal Ready; TTL level (RS-232 signal) 13 Output OH~ Off Hook 14 Output DCD~ Data Carrier Detect; TTL level (RS-232 signal) 15 Output RI~ Ring Signal TTL level (RS-232 signal) 16 Output DSR~ Data Set Ready; TTL level (RS-232 signal) 17 Output UA Switch output; TTL level 18 Input UE Alarm input; TTL level 19 Output UA2 Switch output 2; TTL level 20 Input UE2 Alarm input 2; TTL level 21 GND Ground 22 Output SPK Speaker output (only i-modul Modem PRO SP) 23 Input MIC Microphone input (only i-modul Modem PRO SP) 24 GND Ground Table 4: Terminal strip in description, terminal strip P1 The tilde ~ behind the signal description indicates that it is low active. 2.3 Pin Layout Terminal Strip P2 Pin Type Signal Description 1 Phone signal b1 Incoming phone line (exchange line or PABX) 2 Phone signal b2 For connecting a subsequent phone 3 Phone signal a1 Outgoing phone line (exchange line or PABX) 4 Phone signal a2 For connecting a subsequent phone 5 External bell W Not connected 6 Earth E Earth Table 5: Terminal strip in description, terminal strip P2 9

10 Connections i-modul Modem 3.1 PRO 2.4 Connection Example for Audio Interface for SP Version Figure 2: Connection example of the audio output Figure 3: Connection of the analog audio input with electret microphone for SP version of the i- modul Modem 3.1 PRO 10

11 i-modul Modem 3.1 PRO Function Overview 3 Function Overview The i-modul Modem 3.1 PRO offers the following functions: Automatic baud rate detection The i-modul Modem 3.1 PRO will automatically adjust the data transmission rate, if a connection is made via its serial interface. The serial transmission rate can be preset for applications for the serial communication to be able to initialize with a defined baud rate. Data buffer for serial data transmission The i-modul Modem 3.1 PRO has a fast send and receive buffer (cache) to adjust the modem to the operating speed of the application. Bit direct mode The i-modul Modem 3.1 PRO can forward incoming data without having any influence on their transmission format. Hardware and software data flow control The i-modul Modem 3.1 PRO can transmit to the application via the control lines of the serial interface to interrupt the dataflow, if the buffers of the i-modul Modem 3.1 PRO exceed a certain level. An application can also prompt the i-modul Modem 3.1 PRO via a control line to interrupt the data flow. As an alternative, the i-modul Modem 3.1 PRO can control the data flow via XOFF/XON characters in the data stream. Error correction / data compression The i-modul Modem 3.1 PRO has the following error correction and data compression protocols: V.42, V.42bis, V.44, MNP 2, MNP 3, MNP 4, and MNP 10 Selective call answer The i-modul Modem 3.1 PRO can be set to accept only calls from phone numbers that were previously stored. Switching inputs and alarm outputs for SMS dispatch and to establish an alarm data connection The i-modul Modem 3.1 PRO has two potential-free switch outputs, which can be used to switch other functions in an application. The i- modul Modem 3.1 PRO also has digital switch inputs, which are used to establish connections or to send messages via SMS and fax. Sending messages via data connection, SMS or Fax The i-modul Modem 3.1 PRO can send up to 10 previously entered messages to any defined recipient via an AT command. The dispatch can also be triggered by switching the alarm inputs. Several transmission paths are possible, such as Fax and SMS. 11

12 Function Overview i-modul Modem 3.1 PRO Pulse input to send up to 10 SMS messages The SMS to a previously defined recipient can be triggered via the number of pulses at an alarm input. Remote configuration The i-modul Modem 3.1 PRO can be configured remotely with the help of a common modem and a terminal program. Remote switching of the outputs and queries of the inputs via DTMF The switching outputs at the i-modul Modem 3.1 PRO can be set remotely with the help of DTMF digits sent from a common phone. The alarm inputs can be selected via a DTMF phone and queried acoustically. Access control The i-modul Modem 3.1 PRO can be protected from unauthorized access via a phone connection. An incoming connection must first be enabled with a password. Using security callback, the i-modul Modem 3.1 PRO calls a previously defined phone number back, when a call comes in. Idle connection control with Data Transmit Control Data Transmit Control enables the i-modul Modem 3.1 PRO to terminate the connection, if no data is transmitted during a defined state. This will prevent unnecessary costs. Priority circuit for phones connected in series to the i-modul Modem 3.1 PRO The priority circuit prevents that a phone which is connected to the i- modul Modem 3.1 PRO in series is affected by the modem operation. The modem keeps the line free for phone operation. The i-modul Modem 3.1 PRO recognizes the states of the phone line at the individually adjustable voltages. Storing the settings in the user profiles The i-modul Modem 3.1 PRO can store the user settings in two different "profiles". This means that two different configurations can be stored for special purposes and loaded as needed. 12

13 i-modul Modem 3.1 PRO Meaning of the Symbols and the Formatting in this Manual 4 Meaning of the Symbols and the Formatting in this Manual This section describes the definition, formatting and symbols used in this manual. The various symbols are meant to help you read and find the information relevant to you. The following text is structured like a typical operating instruction of this manual. Bold print: This will tell you what the following steps will result in After that, there will be a detailed explanation why you could perform the following steps to be able to reach the objective indicated first. You can decide whether the section is relevant for you or not. An arrow will indicate prerequisites which must be fulfilled to be able to process the subsequent steps in a meaningful way. You will also learn which software or which equipment you will need. 1. One individual action step: This tells you what you need to do at this point. The steps are numbered for better orientation. A result which you will receive after performing a step will be marked with a check mark. At this point, you can check if the previous steps were successful. Additional information which you should consider are marked with a circled "i". At this point, we will indicate possible error sources and tell you how to avoid them. Alternative results and steps are marked with an arrow. This will tell you how to reach the same results performing different steps, or what you could do if you didn't reach the expected results at this point. 13

14 Operating Principle i-modul Modem 3.1 PRO 5 Operating Principle This chapter describes the basic procedures to operate and configure an i-modul Modem 3.1 PRO. In general, the i-modul Modem 3.1 PRO is configured and operated via AT commands. You can enter these commands yourself with the help of a terminal program and the AT command reference. 5.1 Operation with the Terminal Program In general, any terminal program can be used. We recommend the program TeraTerm by T. Teranishi under Windows. It is available free of cost on the Internet at You can use the program "minicom" if you work in a Linux environment. Caution! Damage of the serial interface! A possible direct connection of the serial interface of the i- modul Modem 3.1 PRO with a typical RS232 interface of a PC overloads components of the module due to the higher voltage levels. Use an RS232 level converter (e.g. MAX232) to adjust both interface types correctly. Configuring and operating the i-modul Modem 3.1 PRO with a terminal program How to configure and operate the i-modul Modem 3.1 PRO with a terminal program. The i-modul Modem 3.1 PRO is connected to the PC and supplied with power. A terminal program is installed on the PC. 1. Start your terminal program. 2. Select the serial port, to which your i-modul Modem 3.1 PRO is connected. COM1 under Windows corresponds to /dev/ttys0 under Linux. 3. Type the character string AT into the terminal program. Complete the entry by pressing the Enter key. Each command input starts with AT and is completed with the Enter key. The i-modul Modem 3.1 PRO replies with OK. 14

15 i-modul Modem 3.1 PRO Operating Principle If the i-modul Modem 3.1 PRO does not respond, this may have three probable reasons: a) the i-modul Modem 3.1 PRO is switched off or b) the i-modul Modem 3.1 PRO is not in configuration mode or c) the i-modul Modem 3.1 PRO is connected to another serial port. Check it and repeat step Configure the i-modul Modem 3.1 PRO using AT commands. A reference of the AT commands can be found in the chapter "AT Command Reference". 5. Save your entries with AT&W. Not all configurations at the i-modul Modem 3.1 PRO need to be saved actively by entering AT&W. Some settings are automatically saved immediately. We still recommend sending the command AT&W to the i-modul Modem 3.1 PRO as your last configuration step to ensure that all settings are stored safely and are available for the next restart. 15

16 Functions i-modul Modem 3.1 PRO 6 Functions 6.1 Select Country-Spezific Settings Loss of saved settings. Note Changing the country code will reset all stored settings in the i-modul Modem 3.1 PRO to factory defaults (except the country code setting). Download (or make notes of) the settings of your i- modul Modem 3.1 PRO before you change the country specific preset. The i-modul Modem 3.1 PRO holds a range of presets, which allow you to adjust the device to the standards and requirements of the local telephone network. You find a list of contries and the corresponding country codes in the section Country Codes. The default setting is Europe with the country code FD. Configuration with AT commands To choose the preset for the country where the the i-modul Modem 3.1 PRO is deployed, use the command: AT+GCI=<n> 16

17 i-modul Modem 3.1 PRO Functions 6.2 Automatic Baud Rate Detection Serial Connection The automatic baud rate detection enables a continuous automatic adjustment of all parameters (baud rate, data format) of the serial interface at the i-modul Modem 3.1 PRO. The device will detect during the operation, which baud rate and which data format is applied to the serial interface. After a restart, the i-modul Modem 3.1 PRO will restore the last working interface configuration. With each incoming AT command (according to the character string "AT"), the parameters for the interface of the i-modul Modem 3.1 PRO will be checked and adjusted, if necessary. This is the reason why the baud rate can not be stored with the command AT&W, as the i- modul Modem 3.1 PRO will immediately adjust its interface to the current parameters of the currently established serial connection. The function is active as default. Configuration with AT commands To set the baud rates temporarily (until the next "AT"), enter one of the following baud rates for <n>: 300, 600, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, or bps. This setting can not be stored. AT+IPR=<n> The i-modul Modem 3.1 PRO must be configured with the baud rate, which is used to operate the application at a later time, as the i-modul Modem 3.1 PRO will always use the last known functioning configuration of its interface. 17

18 Functions i-modul Modem 3.1 PRO Phone connection The automatic negotiation of the baud rate and the modulation standard enables the i-modul Modem 3.1 PRO to negotiate the largest possible connection speed to the remote terminal while the connection is established. The speed depends on the settings and the abilities of the modem at the remote terminal. Via the modulation standard, the connection speed can be set through the phone line. If nothing is defined, the i-modul Modem 3.1 PRO will automatically try to determine the optimum connection parameters. The function is active as default. Configuration with AT commands To configure the modulation standard and thus the connection speed, use the command: AT+MS=<modulation> Please find the possible parameters for this command in the Chapter "AT Command reference". To display the current settings: For a list of possible parameter of the command, enter: AT+MS? AT+MS=? 6.3 Data Buffer for Serial Data Transmission The i-modul Modem 3.1 PRO provides send and receive buffers. These buffers prevent the loss of data, in case the application or the remote terminal can not receive data at this time. The data buffer can be deactivated together with the error correction (bit direct mode). When the buffer is activated, the data flow control should be active to avoid a buffer overflow in the i-modul Modem 3.1 PRO. If the buffer overflows, the data gets lost. Operation without a buffer and error correction is only useful for special character framings. The function is active as default. Configuration with AT commands To deactivate the error correction as well as the buffer in the i-modul Modem 3.1 PRO for applications with special data format, use the command: To deactivate only the error correction, use the command: AT\N1 AT\N0 18

19 i-modul Modem 3.1 PRO Functions 6.4 Bit Direct Mode For special applications, the buffering of the i-modul Modem 3.1 PRO can be deactivated using the setting "unbuffered, bit direct". All data is forwarded without buffering and further influence of the i-modul Modem 3.1 PRO. This applies especially to the parity and stop bits. The error correction and the data compression are in this case switched off as well. If the i-modul Modem 3.1 PRO is operated in this mode, not all functions will be available. The remote configuration and all functions for which a password is required, will no longer be available. This mode should only be used for special character framings. Configuration with AT commands To deactivate the buffer of the i-modul Modem 3.1 PRO and to switch on the bit direct mode, use the command: AT\N1 6.5 Data Flow Control (Handshake) The data flow control ensures that the data transfer is interrupted as soon as the modem buffer exceeds a certain level. Two data flow control options are available: Via the control lines RTS and CTS, or via the control characters XON/XOFF which are inserted into the data stream Hardware data flow control (RTS/CTS) The hardware data flow control works in two directions. When the critical buffer level is exceeded, the modem will set the CTS line to "low" and will thus indicate to the application to interrupt the dataflow. When the buffer is emptied sufficiently for the i-modul Modem 3.1 PRO to be able to receive data again, the CTS line is set to "high". Reversely, the application can also indicate to the i-modul Modem 3.1 PRO to interrupt the data flow. This is done via the RTS line. If it is set to "low", the modem will interrupt the data flow to the application. The application will set it to "high" to request data from the i-modul Modem 3.1 PRO. The data flow control with RTS/CTS behavior is active by default. Configuration with AT commands To switch the data flow control on and to set the type to RTS/CTS, use: To switch the data flow control off, use: AT&K3 AT&K0 19

20 Functions i-modul Modem 3.1 PRO Software data flow control (XON/XOFF) When the input buffer of the modem exceeds a certain fill state, the modem will insert an XOFF character into the data stream to the application. This character will cause the application to send no more data. It will depend on the according application software if the XON/XOFF data flow control is supported. After the input buffer of the modem is emptied so much that data can be received again, the modem will send an XON character to the application. This character will cause the application to send data to the modem again. Analogously, the application can insert XON/XOFF characters into the data stream to switch the data flow on and off. The XON/XOFF data flow control is only available when the transmitted data do not contain the characters XON or XOFF, which usually appear only in actual ASCII texts (7 bit). When binary data (programs, etc.) are transmitted, or in the XMODEM transmission protocol, for example, occasionally appearing XON or XOFF characters would disturb the operation. Configuration with AT commands To switch the data flow control on and to set the type to XON/XOFF, use: To switch the data flow control off, use: AT&K4 AT&K0 20

21 i-modul Modem 3.1 PRO Functions 6.6 Error Correction The i-modul Modem 3.1 PRO masters the V.42 error correction protocol including the Microcom Networking Protocol Levels 2/3/4 (MNP2, MNP3, MNP4) and the data throughput optimization MNP10. The V.42 error correction includes the protocols LAPM (Link Access Procedure for Modem) and MNP4. LAPM is the preferred error correction. MNP 4 is supported to maintain the compatibility with other MNP modems. Both methods determine frames to transfer net data and use CRC (Cyclic Redundancy Check) check sums for error tests. In V.42, there is the option to have the modem identify if the partner is a V.42 modem, a MNP modem, or a modem without error correction. The modem can then autonomously adjust to the partner. As default, the automatic selection of V.42LAPM or MNP4 or no correction is set. Configuration with AT commands To define the type of error correction, use the command: To set V.42LAP-M or MNP4 error correction exclusively, use: Use the following command for the i-modul Modem 3.1 PRO to automatically select V.42LAP-M, MNP4, or an error-corrected connection: To set V.42LAP-M error correction exclusively, use: For the buffered mode without error correction, use: AT\N<n> AT\N2 AT\N3 AT\N4 AT\N0 21

22 Functions i-modul Modem 3.1 PRO 6.7 Data Compression The i-modul Modem 3.1 PRO supports various data compression types. During the connection setup, it will automatically detect the type of data compression used by the remote terminal, or it is set to a certain type of data compression. Data compression is only available for error corrected connections. To be able to use data compression, both sides (sender and recipient) must be able to at least recognize and support the same data compression mode. The default setting is the automatic selection of MNP5 and V42.bis and V.44 data compression (AT%C3). Configuration with AT commands To select the compression type, use: To completely switch off the compression, use the following commands: To select the MNP4 compression: To select the V42bis and V.44 data compression if they are switched on (see below): To select the V42bis and MNP5 data compression if V42.bis compression is switched on (see below): To switch on V.42bis compression: To switch on V.44 compression: To switch off V.42bis compression: To switch off V.44 compression: AT%C<n> AT%C0 AT+DS44=0 AT%C1 AT%C2 AT%C3 AT%C2 AT+DS44=3 AT%C0 AT+DS44=0 22

23 i-modul Modem 3.1 PRO Functions 6.8 Selective Call Acceptance If the selective call acceptance is activated, the i-modul Modem 3.1 PRO will only accept calls from previously defined callers. The i-modul Modem 3.1 PRO will identify the caller via CLIP. This must, however, be supported by the network provider or the phone system, where the modem is connected to. The list of phone numbers of the i-modul Modem 3.1 PRO has 8 storage locations altogether (N0 to N7). The i-modul Modem 3.1 PRO checks the phone number sent via CLIP for one of the stored numbers. The check starts on the "right", i.e. from the end of the phone number submitted by CLIP. This makes it possible to recognize a phone number, although a prefix such as "+49" or "0049" was placed before the number. Also, the number for the detection can be made variable with the help of wild cards. The stored phone numbers may not include any separators, such as dashes between prefix and phone number. Configuration with AT commands To activate the selective call acceptance, use the command: To switch the selective call acceptance off, use the following command: To display a complete list of stored phone numbers for the selective call acceptance, use: To delete a single storage location, overwrite the storage location with an empty space after the character "=". To delete the entire phone list for the selective call acceptance: To store the phone number <nr> in the storage location <n>, use: For example, to permit the numbers , , as callers, just store at the location number 1. For each variable digit in the phone number, an asterisk * can be entered. To keep the last two digits variable, e.g. to allow callers from extensions, use two (**) characters. AT&A1 AT&A0 AT*N? AT*N<n>= AT*N99 AT*N<n>=<nr> AT*N1= AT*N1= ** 23

24 Functions i-modul Modem 3.1 PRO 6.9 Switching Outputs The i-modul Modem 3.1 PRO has two switching outputs, OUT1 and OUT2 on the bottom of the housing. The outputs are potential-free relay switches. They can be controlled individually via AT commands. OUT1 is automatically closed while a pulse alarm is processed. Configuration with AT commands Switching the outputs via the command: <Outp> is 0 for output 1, and 1 for output 2; <State> is 0 for Off and 1 for On. To turn on output 1: To turn off output 2: AT*Y<Outp>,<State> AT*Y0,1 AT*Y1,0 24

25 i-modul Modem 3.1 PRO Functions 6.10 Alarm Inputs The i-modul Modem 3.1 PRO has two digital inputs, which can trigger the sending of messages when connected to GND. When an alarm occurs, the i-modul Modem 3.1 PRO can send a message either via a data connection, a fax or an SMS. The events at the ports are treated in two different ways. Either "simple pulses" are processed at input 1 and only one single message is sent to only one recipient (alarming). As an alternative, the number of pulses from the i-modul Modem 3.1 PRO can be counted to send one of 10 certain messages (pulse input). Each of the 10 messages can be sent to another phone number. If the pulse count is active, an individual event can also be processed at input 2. Events at the input 2 will always send the message no. 2 from the list of messages. The i-modul Modem 3.1 PRO will evaluate a connection to the first input to GND as an impulse. This will only count negative flanks. Two "pulse types" are available: "Simple pulses" and count pulses. If no positive flanks are counted for at least 4 seconds, a "simple alam" is processed and the sending of the group message to the defined recipient is triggered. Count pulses are periodic connections to GND, which do not last longer than two seconds. The length of a pulse or the pause respectively can have a duration between 0.3 and 2 seconds (Figure 1: Duration of interpulse periods). Depending on the number of count pulses, the messages 1 to 10 are sent. Figure 4 Duration of interpulse periods The sent messages consist of the group message and the according message 1 to 10. It is thus possible to specify the system with the group message and to specify the reported system part in the pulse message. For control purposes, simple and pulse alarms may be triggered via AT commands. The status of the alarm inputs can be queried by AT commands or via DTMF tones. 25

26 Functions i-modul Modem 3.1 PRO 6.11 Sending messages via Data connection, SMS or Fax The i-modul Modem 3.1 PRO monitors its alarm inputs to be able to send a message, if an event occurs. The two types of message dispatch are simple "Alarming" and the pulse count. For simple alarming, one individual message is sent to an individual number. For the pulse count, either a group message is sent to one recipient or according to the number of pulses, the group message together with the message to the according recipient. As a default, three attempts are made to send a message. Configuration with AT commands To select the simple alarming, first define the SMS service center number. To prevent that the i-modul Modem 3.1 PRO does not wait for a phone number from the exchange (e.g. for configurations with phone systems), the dial tone detection can be turned off. To define the type of the message dispatch (SMS to mobile phone, SMS to fixed network, data connection, see Table 6: Type of the message transmission ), use: If you want to send all messages to mobile phones, e.g. in the D2 network, use: AT&Z0=phonenumber ATX3 AT*M<n> AT*M4 The connection type depends on the type of transmission, the provider and the end terminal. Please note that you set the transmission type for all messages of the i-modul Modem 3.1 PRO. If you set SMS to mobile phone via D2, for example, you can only send SMS to mobile phones in the D2 network. Some providers support the forwarding of a message to an address. Please contact your provider for further information. The following table shows various pre-settings of the i-modul Modem 3.1 PRO to send messages to different end devices. 26

27 i-modul Modem 3.1 PRO Functions Transmission Protocol Data Format Example Data connection AT*M0 SMS to Mobile PET 8N1 D1 or E AT*M1 Network SMS to Mobile UCP 7E1 AT*M2 SMS to Mobile PET 7E1 AT*M3 SMS to Mobile UCP 8N1 D2 network AT*M4 Fax AT*M5 SMS to mobile phone or fixed network AT*M6 Table 6: Type of the message transmission This setting must be saved. Enter the message for the simple alarming with this command: After this command is entered, the modem will respond and wait for the message text. To define the group message for the pulse alarm, which is put before all pulse messages or is sent for all "simple" pulses, also use the command. The message can be a maximum of 160 characters long. AT&W AT*V New alarm text: AT*V To define the messages for an active pulse input for the according number of count pulses, use the command: where <n> is the position of the message in the list. After the command has been entered, the i-modul Modem 3.1 PRO will respond and expects the recipient phone number and the message text, separated by a comma. The message can be a maximum of 80 characters long. AT*V<n> 27

28 Functions i-modul Modem 3.1 PRO 6.12 Manual Sending of Messages The group message or the individual pulse messages can be sent manually. Configuration with AT commands To send the commands, use the command: Use <n> to address the messages which are supposed to be sent. The message no. 0 is the group message; the other pulse messages are addressed by 1 to 10. For example, the message no. 1 is sent with this command: AT%A<n> AT%A1 If the messages 1 to 10 are triggered, the sent message will always consist of the group message and the attached pulse message. 28

29 i-modul Modem 3.1 PRO Functions 6.13 Switching on the Remote Configuration The i-modul Modem 3.1 PRO can be configured remotely. It has a remote configuration mode. To configure the i-modul Modem 3.1 PRO remotely, a data connection to the modem to be configured must be established. This can be performed by calling the i-modul Modem 3.1 PRO from any modem. After switching into the remote configuration mode, AT commands can be sent to configure the i-modul Modem 3.1 PRO. To switch into the remote configuration mode, a data connection must be established between the modems. A particular connection type is not mandatory. We recommend using only error-corrected connections for the remote configuration to avoid AT command transfer errors. The remote configuration is active as default. Configuration with AT commands To turn the remote configuration on, use: To enable the remote configuration, the automatic call acceptance (e.g. after 2 ring tones) must be activated. Activate the error correction, for example, for the i-modul Modem 3.1 PRO to automatically dial the V.42LAP-M or MNP4 error correction. To enter a password for the remote configuration, use the command: Save the settings with: AT*R1 ATS0=2 AT\N2 AT*C AT&W 29

30 Functions i-modul Modem 3.1 PRO 6.14 Remote Configuration of the i-modul Modem 3.1 PRO Perform the remote configuration In the following, we show how you can configure the i-modul Modem 3.1 PRO remotely. You will need a modem which you can use to establish a connection to the i-modul Modem 3.1 PRO. You will need a terminal program. 1. Open your terminal program. 2. Establish a connection to the i-modul Modem 3.1 PRO. Use the local modem to dial the phone number of the i-modul Modem 3.1 PRO with ATD<phonenumber>. The local modem establishes a connection. 3. After the connection has been established, enter **** (four asterisks). This will switch you into remote maintenance mode. If you set a password, you will now need to enter it. After you successfully entered the password, the i-modul Modem 3.1 PRO will send a prompt in form of an ">". You can now configure the i-modul Modem 3.1 PRO remotely. Some AT commands are not available in remote maintenance mode. The AT commands are ATA, ATD, ATO, AT&F, AT/B. 4. Complete the remote configuration by entering AT*E. The i-modul Modem 3.1 PRO is now in the normal data connection mode. You can now exchange data between your local modem and the i-modul Modem 3.1 PRO, or terminate the connection. Enter **** to re-initiate a remote configuration. 30

31 i-modul Modem 3.1 PRO Functions 6.15 Switching / Querying of the Outputs / Activate Inputs via DTMF The outputs at the i-modul Modem 3.1 PRO can be switched via the DTMF tones of a conventional telephone. The inputs can also be queried via DTMF tones. The input states as well as the responses of the switching processes will be transformed acoustically into tone sequences of well differentiated high and low tones. Configuration with AT commands To switch the DTMF mode on, use: To accept a call from this telephone, the automatic call acceptance must be activated: To switch the DTMF mode off, use: To store the settings for the DTMF mode, use the command: To set the PIN for the DTMF mode, use the command: AT\D1 ATS0=2 AT\D0 AT&W AT*C1 To change the PIN, the old PIN from the i- modul Modem 3.1 PRO must be queried, before a new PIN can be entered. The default setting for the DTMF PIN is "0000". Immediately after it has been changed, the PIN will be stored in the permanent memory of the i-modul Modem 3.1 PRO. 31

32 Functions i-modul Modem 3.1 PRO Switching of the Outputs / Queries of the Inputs via DTMF This section describes how the outputs of the i-modul Modem 3.1 PRO can be switched with the help of the DTMF tones of a regular phone. The i-modul Modem 3.1 PRO responds with a tone. Acoustic responses of the i-modul Modem 3.1 PRO: OK ERROR =short low tone, short high tone =long low tone Login at the i-modul Modem 3.1 PRO with a remote phone The automatic call acceptance at the i-modul Modem 3.1 PRO is activated. The DTMF mode is switched on. The selective call acceptance is deactivated or allows calls from the extension of the phone which you use to switch the outputs. The acoustic "OK" is a short low tone, followed by a short high tone. The acoustic "ERROR" is a long low tone. 2. Call the i-modul Modem 3.1 PRO. The modem will go off-hook after a set number of ring tones. The modem sends an acoustic "OK". The i-modul Modem 3.1 PRO will now expect that the PIN is entered. 3. Enter the DTMF PIN. You will hear the acoustic signal for "OK" again. When you hear the acoustic signal for "Error", you must reenter the PIN. After three unsuccessful attempts, the i-modul Modem 3.1 PRO will hang up. Switch outputs How to switch the outputs of the i-modul Modem 3.1 PRO via DTMF. You are connected to the i-modul Modem 3.1 PRO via phone. The DTMF query is activated. 1. Press the numeric key "1" to select the output 1 or press the numeric key "2" to select the output 2 of the i-modul Modem 3.1 PRO for switching. 2. Press the key "*" at the phone. 3. Press the numeric key "1" to activate the selected input; press the numeric key "0" to deactivate the selected input.

33 i-modul Modem 3.1 PRO Functions The i-modul Modem 3.1 PRO responds with an acoustic OK: Querying the inputs How to query the inputs of the i-modul Modem 3.1 PRO via DTMF. You are connected to the i-modul Modem 3.1 PRO via phone. The DTMF query is activated. 1. Press the numeric key "3" at the telephone. 2. Press the key "*" at the phone. The i-modul Modem 3.1 PRO will output its input states. First input 1, then input 2. For the HIGH state, a long, high ton is produced; for the LOW state a low, long tone. Terminate the connection How to terminate the connection to the i-modul Modem 3.1 PRO. 1. Press the numeric key "0" at the telephone. 2. Press the key "*" at the phone. The i-modul Modem 3.1 PROhangs up. The i-modul Modem 3.1 PRO will terminate the connection automatically, if no entry was made for 25 seconds. 33

34 Functions i-modul Modem 3.1 PRO 6.17 Access Control and Security Callback To protect yourself from unauthorized access via the phone line, the modem may be protected by a password. This password is used to establish a data connection, for security callback and remote configuration. This means: If the access control is activated, the system will prompt you for a password before outgoing connections and when dialing into the i-modul Modem 3.1 PRO for remote configuration. After successful authentication, the function Security Callback will trigger a callback from the i-modul Modem 3.1 PRO to a predefined number. The factory default standard password is "QWERTY". Configuration with AT commands To change the password, use To turn the access control for incoming and outgoing connections on, use To turn the access control off, use To accept a call, the automatic call acceptance must be activated: To activate the security callback and to save the phone number to be called, use the command: AT*C AT*P1 AT*P0 ATS0=2 AT&Z1=<YourNumber> Please note: If you operate the i-modul Modem 3.1 PRO at a phone system, which will not provide an exchange after going off-hook, enter the character for the exchange together with the phone number. To activate the security callback and to call back the caller identified by CLIP instead of a special phone number, use the command: AT&Z1=C Please note that a phone system may make a callback impossible, if it requires an exchange first. Some phone systems, however, can add the character for the exchange to the CLIP which they send to the end device. To store the command, use the command: AT&W 34

35 i-modul Modem 3.1 PRO Functions Triggering a "Security Callback" How to trigger a security callback of the i-modul Modem 3.1 PRO: You will another modem to be able to connect to the i-modul Modem 3.1 PRO. The security callback function at the i-modul Modem 3.1 PRO is activated. The automatic call acceptance at the i-modul Modem 3.1 PRO is activated. Use the function "selective call acceptance" to be able to restrict the number of callers who can trigger a security callback. If you use another i-modul Modem 3.1 PRO to trigger a security callback at a i-modul Modem 3.1 PRO, the access control must be deactivated at one of the devices. Your second modem can be reached at the number stored in the i-modul Modem 3.1 PRO. It must be able to accept calls. You will need a terminal program. 1. Establish a connection to the i-modul Modem 3.1 PRO. The i-modul Modem 3.1 PRO responds the incoming call. Connect SECURITY CALLBACK REMOTE PASSWORD: The i-modul Modem 3.1 PRO prompts you to enter the password. The standard password is "QWERTY". 2. Enter the password. After three unsuccessful password entries, the i-modul Modem 3.1 PRO will hang up. After 10 seconds, the i-modul Modem 3.1 PRO will dial the stored phone number. The i-modul Modem 3.1 PRO performs 3 dialing attempts with 10 seconds pause before each subsequent attempt. If the called modem responds, a normal data connection exists. 35

36 Functions i-modul Modem 3.1 PRO 6.18 Idle Connection Control with Data Transmit Control The Data Transmit Control (DTC) is a function of the i-modul Modem 3.1 PRO which monitors the data transmission in online mode. This function prevents the i- modul Modem 3.1 PRO to stay online for an unlimited amount of time, although no data is being transmitted anymore. The DTC function can define the time after which the i-modul Modem 3.1 PRO will hang up as soon as there is no data transfer on the phone line. Configuration with AT commands To define the time, after which the i-modul Modem 3.1 PRO should hang up, if no data transmission is available, use the command You can select a value between 1 and 255 seconds for <n>. Please note that the timer will start running, as soon as the i-modul Modem 3.1 PRO goes off-hook ("OH" LED lights up). We therefore strongly recommend to configure no times below 20 seconds. ATS15=<n> 6.19 Priority Circuit for a Phone Connected in Series to the i-modul Modem 3.1 PRO The i-modul Modem 3.1 PRO may give a phone connected in series priority, to make sure the modem functions interfere as little as possible with the usage of the phone connection. Thei-modul Modem 3.1 PRO can determine on the basis of the voltage in the line, if the phone line is used by a phone, if a phone in series is going off-hook or if the remote terminal of the i-modul Modem 3.1 PRO is terminating the connection. The functions of the priority circuit may be combined or used individually. The functions can be selected and activated with the AT command AT-STE=<n>. The following table provides the combination of functions with the according AT- STE command. 36

37 i-modul Modem 3.1 PRO Functions Command Detecting a busy phone line Going off-hook by telephone AT-STE=0 Off Off Off AT-STE=1 On Off Off AT-STE=2 Off On Off AT-STE=3 On On Off AT-STE=4 Off Off On AT-STE=5 On Off On AT-STE=6 Off On On AT-STE=7 On On On Table 7: Possible combinations of the individual functions of the priority circuit Remote terminal connection abort The modem detects the status of the phone line at the voltage levels in the line. Optionally, the voltages for the various line states can be set with the command AT-TTE=U1,U2,U3. The voltages U1, U2 and U3 are by default set to functioning values and need not be modified. The following illustration shows the voltage curve for the according line state and the appropriate AT command parameters. U U1 U2 U t Figure 5: Line states and voltages in the line 37

38 Functions i-modul Modem 3.1 PRO State Description 1 No connection has been established. The line is free. 2 A connection has been established. The telephone is off-hook and connected to a remote terminal. The voltage in the line has dropped with the amount of U1. The i-modul Modem 3.1 PRO can thus detect that the line is busy. 3 A connection has been established, but this time the i-modul Modem 3.1 PRO occupies the line and is connected to a remote terminal. If the telephone connected in series goes off-hook, the voltage will drop with the amount U2. The i-modul Modem 3.1 PRO will detect that the phone has gone off-hook and will terminate the connection. 4 The line is busy during a modem connection. After the remote terminal hangs up, the i-modul Modem 3.1 PRO will detect through the short power spike U3 (the crackling noise in the line) that the remote terminal has hung up. This will set the event code of the S registry 86 to 25 (remote terminal has hung up). This means that the i-modul Modem 3.1 PRO will not keep the line busy for an unnecessarily long period. If phone systems are used which dampen the crackling noise or the short power spike, it may occur that the system will not detect that the remote terminal has hung up. Table 8: Line states and behavior of the priority circuit Configuration with AT commands To use the desired functions of the priority circuit, use: AT-STE=<n> To set the voltage level for the detection of the line status, use: U1 is the voltage difference in the phone line between hung up state (free line) and the busy line. U2 is the voltage difference, which is generated in the phone line when the i- modul Modem 3.1 PRO has already gone off-hook and a telephone connected in series is going off-hook. AT-TTE=U1,U2,U3 U3 is the voltage difference in the phone line between hung up state (free line) and the busy line. To store the command, use the command: AT&W 38

39 i-modul Modem 3.1 PRO Functions 6.20 Automatic Dial-Up Delay The standard TBR21 applies to all public phone networks in EC countries (Belgium, Denmark, German, Finland, France, Greece, Great Britain, Ireland, Italy, Luxembourg, Netherlands, Austria, Portugal, Sweden, Spain), as well as in Switzerland, Liechtenstein, Norway and Iceland. According to the regulations of the TBR 21, a dial-up is blocked for 2 hours after 12 unsuccessful dial-up attempts. In this case, the modem indicates the message BLACKLISTED. The modem must be briefly disconnected from the power supply in this case. The counter will be reset automatically following each successful connection establishment. If the connection to the remote terminal has been established successful, a dialling pause of 5 seconds will be maintained User Profiles Changing the Configuration The i-modul Modem 3.1 PRO knows different user profiles. Besides the default factory settings, which serve for achieving a defined, operable initial condition of the modem, the user profiles 0 and 1 are available. You can save configurations to the user profiles, which are reused for certain purposes. A part of the S registry is saved with each profile. The concerned registers are indicated in the S registry description with an asterisk "*". A reset is always performed before loading a user profile. Configuration with AT commands In order to load the factory default settings into the i-modul Modem 3.1 PRO, use the command In order to load user profile 0 into the i- modul Modem 3.1 PRO, use the command In order to load user profile 1 into the i- modul Modem 3.1 PRO, use the command In order to display the user profile settings, use the command AT&F ATZ ATZ0 ATZ1 AT&V 39

40 Functions i-modul Modem 3.1 PRO Saving the Configuration If the configuration of the i-modul Modem 3.1 PRO has been adapted to the requirements of the user, it is possible to save the settings in user profile 0 or 1. Changes of the configuration get lost after a RESET or restart, if the have not been saved before. Configuration with AT commands In order to save the current configuration to user profile 0, use the command In order to save the current configuration to user profile 1, use the command AT&W AT&W0 AT&W Reset There are several methods to reset the i-modul Modem 3.1 PRO: by cutting off the supply voltage, by connecting the terminal RESET with the terminal GND, and by using an AT command. Configuration with AT commands To reset the i-modul Modem 3.1 PRO, use the command To reset the i-modul Modem 3.1 PRO and load the settings stored in user profile 0, use the command To reset the i-modul Modem 3.1 PRO and load the settings stored in user profile 1, use the command To reset the i-modul Modem 3.1 PRO to factory defaults, use the command ATZ ATZ0 ATZ1 AT&F&WZ 40

41 i-modul Modem 3.1 PRO Maintenance 7 Maintenance Firmware update Note Function loss due to faulty update! The i-modul Modem 3.1 PRO may loose its function, if it is updated with a wrong firmware or if the transfer of the firmware was faulty. Before updating the firmware of the i-modul Modem 3.1 PRO, contact the INSYS MICROELECTRONICS support department. They will provide you with the suitable firmware version for your i-modul Modem 3.1 PRO. Hinweis Damage of the serial interface! A possible direct connection of the serial interface of the i-modul Modem 3.1 PRO with a typical RS-232 interface of a PC overloads components of the module due to the higher voltage levels. Use a RS-232 level converter (e.g. MAX232) to adjust both interface types correctly. The firmware of the i-modul Modem 3.1 PRO can be updated to add more functions to the i-modul Modem 3.1 PRO or to improve the existing functions. A firmware update can be performed with the help of a terminal program that supports ASCII uploads (e.g. TeraTerm). 41