iRZ ATM2-232 User manual

Table of Contents
1. Introduction.......................................................................................................................................................6
1.1. About this Document...................................................................................................................................6
1.2. Operating Instructions.................................................................................................................................6
1.3. Terms and Definitions .................................................................................................................................7
2. Product Overview...........................................................................................................................................10
2.1. Product Purpose and Main Functions.......................................................................................................10
2.2. Document Usage Procedure.....................................................................................................................11
2.3. Data Transfer Technology.........................................................................................................................11
2.4. Hardware Specifications ...........................................................................................................................11
2.5. Physical Specifications..............................................................................................................................12
2.6. Electrical Specifications ............................................................................................................................12
2.7. GSM Module Specifications......................................................................................................................13
2.8. Device Functional Circuit ..........................................................................................................................13
2.9. Device View...............................................................................................................................................14
2.10. Interfaces.................................................................................................................................................15
2.10.1. Mini USB Connector....................................................................................................................15
2.10.2. DB9 Connector (RS232)..............................................................................................................16
2.10.3. Power Connector.........................................................................................................................17
2.10.4. Terminal Connector (2GPIO+1GPO) ..........................................................................................18
2.11. The Modem Status Indication .................................................................................................................19
2.11.1. Signal Strength Indicators ...........................................................................................................19
2.12. Parameters and Attributes Used.............................................................................................................20
3. SIM Card Installation and Device Mounting ................................................................................................23
3.1. SIM Card Installation.................................................................................................................................23
3.2. Device Mounting........................................................................................................................................24
4. Device Operation Description.......................................................................................................................27
4.1. Modem Setup Preparation ........................................................................................................................27
4.2. Device Operating Procedure.....................................................................................................................28
4.3. Service Mode ............................................................................................................................................28
4.4. Offline Mode..............................................................................................................................................29
4.5. Updating Firmware....................................................................................................................................33

4.6. Setting Up the Modem ..............................................................................................................................34
4.7. Working with SIM Cards............................................................................................................................34
4.8. Working with the Server............................................................................................................................35
4.9. Working with the iRZ Collector Server......................................................................................................37
4.10. Encapsulation Mode................................................................................................................................38
4.11. Connecting to the Server via SMS Commands ......................................................................................39
4.12. Sending SMS on GPRS Connection Loss..............................................................................................39
4.13. Data Transmission via CSD....................................................................................................................40
4.14. Watchdog Timers....................................................................................................................................41
4.15. Real-Time Clock (RTC)...........................................................................................................................41
4.16. GPIO Pins Operation ..............................................................................................................................41
4.16.1. Setting Up Pins of the «Input» Type............................................................................................42
4.16.2. Setting Up Pins of the «Output» Type.........................................................................................43
4.16.3. GPIO Pins Control via SMS Commands.....................................................................................45
4.17. Operating with Incoming SMS Messages...............................................................................................46
4.18. Modem Operation in the Server Mode....................................................................................................46
4.18.1. Authentication of Connecting Clients ..........................................................................................47
4.18.2. Monitoring and Control via iRZ Collector.....................................................................................48
4.18.3. TCP/IP Connection Control.........................................................................................................49
4.18.4. SMS on IP Address Change .......................................................................................................49
5. Log Main Messages .......................................................................................................................................50
5.1. Log Messages at the Modem Activation...................................................................................................50
5.2. Log Messages on the SIM Cards Used ....................................................................................................51
5.3. Log Messages at the Operation with Servers...........................................................................................52
5.4. Log Messages at Sending SMS on GPRS Connection Loss ...................................................................53
5.5. Log Messages at Receiving Signals from Outputs...................................................................................53
5.6. Log Messages at Receiving SMS Commands by the Modem..................................................................54
6. Contacts and Support....................................................................................................................................55

List of Tables
Table 2.1 DB9 connector pin assignments...............................................................................................................16
Table 2.2 Power connector pin assignments............................................................................................................18
Table 2.3 Terminal connector pin assignments........................................................................................................18
Table 2.4 LED indication signals...............................................................................................................................19
Table 4.1 Assignments of pins set to input...............................................................................................................42
Table 4.2 Output operation algorithm .......................................................................................................................43
Table 4.3 Available types of signals in the command mode.....................................................................................44
Table 5.1 The sample of start log content ................................................................................................................50
Table 5.2 The sample of log messages at the module activation.............................................................................51
Table 5.3 The sample of log messages on SIM cards used.....................................................................................52
Table 5.4 The sample of log messages at operation with servers ...........................................................................52
Table 5.5 The sample of log messages at sending SMS messages on GPRS connection error ............................53
Table 5.6 The sample of log messages at receiving signals from pins....................................................................53
Table 5.7 The sample of log messages at receiving SMS commands by the modem.............................................54
List of Images
Fig. 1.1 Interaction diagram when using the iRZ Collector software solution –the modem operates in a client mode
.....................................................................................................................................................................................8
Fig. 1.2 Interaction diagram when using the iRZ Collector software solution –the modem operates in a server
mode............................................................................................................................................................................8
Fig. 2.1 ATM functional diagram...............................................................................................................................14
Fig. 2.2 Front Panel ..................................................................................................................................................14
Fig. 2.3 Back Panel...................................................................................................................................................15
Fig. 2.4 Mini USB connector .....................................................................................................................................16
Fig. 2.5 DB9 connector .............................................................................................................................................16
Fig. 2.6 Power connector..........................................................................................................................................18
Fig. 2.8 Signal strength indicators (a sample for the CSQ signal strength from 16 to 19) .......................................20
Fig. 3.1 Removing the SIM card tray from the modem.............................................................................................23
Fig. 3.2 Inserting the SIM card into the tray..............................................................................................................24
Fig. 3.3 The АТМ modem drawing dimensions ........................................................................................................25
Fig. 3.4 Device mounting –mounting the modem on a DIN rail to the side panel ...................................................25

Fig. 3.5 Device mounting –mounting the modem on a DIN rail with the front panel facing up................................26
Fig. 3.6 Device mounting –mounting the modem on the wall..................................................................................26
Fig. 4.1 Procedure of selecting a production server .................................................................................................36
Fig. 4.2 The diagram of operation with one server without backup..........................................................................36
Fig. 4.3 The diagram of operation with two servers..................................................................................................37
Fig. 4.4 The diagram of operation with two IP addresses on one server .................................................................37
Fig. 4.5 Methods of remote access to the modem....................................................................................................46
Fig. 4.6 Types of client authentication at connection to the modem-server .............................................................47
Fig. 4.7 The interaction diagram when using the iRZ Collector software solution - the modem operates in the
server mode...............................................................................................................................................................49

1. Introduction
1.1. About this Document
The document contains description and operating procedure of the iRZ ATM2-232 GSM/GPRS modem (he-
reinafter referred to as ATM). The document is intended for the users who are in charge of configuration and
maintenance of systems where data is transmitted via this device.
Document version
Firmware Version
Hardware Version
Issue Date
3.8
11.08
02
12.03.2015
Written by
Y. Petrova, P. Malikova
Approved by
D. Pavlov, G. Samakova
See also:
on getting started with the ATM Control utility and the modem basic setup –the «Setting Up iRZ ATM
Step by Step. ATM Control»document;
on setting up the modem via ATM Control –the «User Guide on the ATM Control Modem Configuration
Utility»document;
on setting up the modem via AT commands –the «AT Commands to Set Up the iRZ ATM2-232 Mod-
em»document;
on the benefits of the specialized iRZ Collector server –the «iRZ Collector. Solution Overview»
document;
on the use of the iRZ Collector dispatching application –the «iRZ Collector Dispatching Software Setup
and Operation User Guide»document.
1.2. Operating Instructions
The modem can interfere with electronic devices, therefore there are the following limitations on its use:
Power off the modem in medical centres and keep it away from medical equipment (for example, cardiac
pacemakers, and hearing aids).
Power off the modem in aircraft, take measures against accidental switch-on.
Power off the modem near gas stations, enterprises of chemical industry, in areas where blasting operations
are in progress.
At close range the modem can interfere with television and radioreceiver operation.
To ensure safe operation, follow the recommendations:
Do not expose the modem to aggressive influences (high temperatures, corrosive chemicals, dust, water,
etc.).

Protect the modem from impacts, drops and extreme vibration.
Do not attempt to disassemble or modify the modem. Such actions will void the warranty.
Note! Use the device in compliance with the operating instructions. The end user shall have no coverage
or benefits under the warranty if the product has been subject to abnormal use and storage.
1.3. Terms and Definitions
Local configuration or firmware updating –configuration or updating of the modem firmware connected to a
computer via a USB cable. For the ATM modem they are performed via the ATM Control program.
Remote configuration or firmware updating –configuration or updating of the modem firmware located on
the site, from the dispatching center. For the ATM modem they are performed via the iRZ Collector dispatching
application which is used together with the iRZ Collector server application.
Modem-client –the ATM modem operating in the TCP/IP client mode, i.e. the modem is connected to the data
collection server and transmits it data from an external device.
Modem-server –the ATM modem operating in the server mode, i.e. the modem awaits incoming connections
and processes them.
The system of data collection and device control (hereinafter referred to as system) –a set of tools for
automated data collection from external devices, located on sites, and their control as well as its processing, ac-
cumulation and transmission.
Server –a computer or specialized computer equipment with the installed server software for processing client
requests (in the terms of a client-server interaction model).
iRZ Collector solution –iRZ-manufactured software solution including the server and the dispatching applica-
tions of iRZ Collector.
iRZ Collector server application –the iRZ Collector server software to be installed on a data collection server.
It enables a third-party polling software, acting as a client (in the terms of a client-server interaction model), to re-
ceive data from the modems, which also act as a client. That is, the server application serves as a kind of «layer»
enabling their interaction (see Fig. 1.1).

For ease of reference, hereinafter the server with the installed iRZ Collector server application is referred as the
iRZ Collector server.
In case when the ATM modem operates in the server mode, it accepts connections itself: it no longer requires a
broker to interact with the polling software, operating in a client mode. In this case the iRZ Collector solution can
be still used to monitor and control the system modems (see Fig. 1.2).
Fig. 1.1 Interaction diagram when using the iRZ Collector software solution –the modem operates in a client mode
Fig. 1.2 Interaction diagram when using the iRZ Collector software solution –the modem operates in a server
mode
The iRZ Collector dispatching application –the iRZ Collector dispatching software which operates together
with the iRZ Collector server application and enables remote monitoring and control of the system modems. It can
be used in the dispatching center or data collection server as well as in any computer with the operating system
supporting the application.
External devices polling software is used in the dispatching center to poll external devices and is provided by
their manufacturer. Generally, it operates in the client mode, and therefore the following two methods are used to
interact with the modem: First –the modem operates in the client mode, and a special-purpose «layer»(for exam-
ple, the iRZ Collector server application) is used to interact with it. Second –the modem operates in the server
mode that enables a third-party software to connect it directly.

However in the second case each modem requires an external1static IP address.
Dispatching center –data collection and dispatching center intended to poll external devices, installed on
sites, and to monitor and control the system modems.
Data collection server2–the server where all the system data is accumulated and processed: data from ex-
ternal devices and system service information. The modem-clients are connected to the data collection server
and transmit the required data, the external device polling software is also connected to the server and re-
quests the data received by the server from the modem.
External device –the device mounted on a site and connected to the modem via the RS232 communica-
tions interface. Heat and energy meters, as well as any systems of telemetry and telemechanics, may act as
external devices.
SMS command –an SMS message sent to the modem, containing a character-based command of a certain
format.
1If your company rents an access point (APN) from a mobile network carrier, the modem will use an internal static ad-
2Used if the modem and the external devices polling software operate as clients. If the modem operates in the server
mode, the software can be connected to it directly and read out the required data.

10
2. Product Overview
2.1. Product Purpose and Main Functions
The iRZ ATM GSM/GPRS modem provides data transmission over GPRS via TCP/IP protocol stack.
The device is designed for operation in telemetry systems.
The modem can operate in any of the three modes: client, server or CSD only. In the Client mode (hereinaf-
ter –modem-client) the modem is connected to the data collection server and transmits data from an external
device. In the Server mode (hereinafter –modem server), the modem, on the contrary, waits for the client in-
coming connection (for example, from a dispatcher computer) on a certain port and processes it. In the CSD
only mode data is transmitted via CSD (voice channel) with no data transmission over GPRS and the offline
mode available.
For operation in the Client mode you can use any SIM card, for operation in the Server mode it is recom-
mended to use a SIM card with an external1static IP address. For operation in the CSD only mode you can
use any CSD-enabled SIM card.
In the Client and Server modes the modem automatically connects to GPRS. After that the modem estab-
lishes connection to the specified server (if operating in the client mode) or opens an incoming port and waits
for incoming connections (if operating in the server mode).
The device provides transparent communication between a third-party external devices polling software and
an external device connected to the modem via RS232 interface. The modem tracks the GPRS connection sta-
tus and in case of connection loss, the modem restores it (see section «Device Operating Procedure»)
The ATM modem allows for the use of two SIM cards providing backup mobile communication (see section
«Working with SIM Cards»).
The client mode supports backup Internet connection –the main server switches to a backup server in case
of disconnection. Switching between servers is also available by a signal from the modem GPIO pins (see sec-
tion «Working with the Server»).
The modem-client can operate with a standard server (see section «Working with the Server») or a special-
purpose iRZ Collector server. The iRZ Collector server provides transparent data communication between a
third-party polling software, operating as a client, and the modems which also operate as clients and do not
have static IP addresses (see section «Working with the Server»).
The modem supports data transmission over CSD (voice channel). If there are phone numbers enabled in
the modem settings, data transmission over CSD is available in the client and server mode. In addition, ATM
supports a separate mode for data transmission only over CSD.
1If your company rents an access point (APN) from a mobile network carrier, addresses of the sites for such network
will be internal. In this case it is recommended to use a private static address.