iRZ ATM2-232 User manual

Operation Manual
GSM modem iRZ ATM2-232

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Table of Contents
1. Introduction.......................................................................................................................................................5
1.1. About this Document...................................................................................................................................5
1.2. Operating Instructions .................................................................................................................................5
1.3. Terms and Definitions .................................................................................................................................6
2. Product Overview.............................................................................................................................................9
2.1. Product Purpose and Main Functions.........................................................................................................9
2.2. Using the Document..................................................................................................................................10
2.3. Data Transfer Technology.........................................................................................................................11
2.4. Hardware Specifications............................................................................................................................11
2.5. Physical Specifications..............................................................................................................................11
2.6. Electrical Specifications.............................................................................................................................11
2.7. GSM Module Specifications......................................................................................................................12
2.8. Device Functional Circuit...........................................................................................................................12
2.9. Device View...............................................................................................................................................14
2.10. Interfaces.................................................................................................................................................15
2.10.1. Mini USB Connector....................................................................................................................15
2.10.2. DB9 Connector (RS232)..............................................................................................................15
2.10.3. Power Connector.........................................................................................................................17
2.10.4. Terminal Connector (2GPIO+1GPO) ..........................................................................................17
2.11. The Modem Status Indication..................................................................................................................18
2.11.1. Signal Strength Indicators ...........................................................................................................19
2.12. Parameters and Attributes Used.............................................................................................................19
3. SIM Card Installation and Device Mounting.................................................................................................22
3.1. SIM Card Installation.................................................................................................................................22
3.2. Device mounting........................................................................................................................................23
4. Device Operation Description.......................................................................................................................26
4.1. Modem Setup Preparation ........................................................................................................................26
4.2. Device Operating Procedure.....................................................................................................................27
4.3. Service Mode.............................................................................................................................................28
4.4. Offline Mode..............................................................................................................................................28
4.5. Updating Embedded Software (Firmware)................................................................................................32

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4.6. Setting Up the Modem...............................................................................................................................33
4.7. Working with SIM Cards............................................................................................................................33
4.8. Working with a Server ...............................................................................................................................34
4.9. Working with the iRZ Collector Server ......................................................................................................36
4.10. Working without iRZ Collector Protocol...................................................................................................37
4.11. Encapsulation Mode................................................................................................................................37
4.12. Connecting to the Server via SMS Commands.......................................................................................38
4.13. Sending SMS message...........................................................................................................................39
4.14. Data Transmission via CSD....................................................................................................................40
4.15. Watchdog Timers ....................................................................................................................................41
4.16. Real-Time Clock (RTC)...........................................................................................................................41
4.17. GPIO Pins Operation...............................................................................................................................41
4.17.1. Setting Up Pins of an "Input" Type ..............................................................................................41
4.17.2. Setting Up Pins of "Output" Type ................................................................................................43
4.17.3. GPIO Pins Control via SMS Commands.....................................................................................45
4.18. Operating with Incoming SMS Messages ...............................................................................................46
4.19. Modem Operation in the Server Mode....................................................................................................46
4.19.1. Authentication of Connecting Clients...........................................................................................47
4.19.2. Monitoring and Control via iRZ Collector.....................................................................................49
4.19.3. TCP/IP Connection Control.........................................................................................................49
4.19.4. SMS notification on IP Address Change .....................................................................................50
5. Contacts and Support....................................................................................................................................51
List of Tables
Table 2.1 The LLS connector pin assignments....................................................................................................16
Table 2.2 Power connector pin assignments.......................................................................................................17
Table 2.3 Terminal strip connector pin assignments ...........................................................................................18
Table 2.4 LED indication signals..........................................................................................................................18
Table 4.1 Assignments of pins set to input ..........................................................................................................42
Table 4.2 Output operation algorithm ..................................................................................................................44
Table 4.3 Available types of signals in the command mode................................................................................45

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List of Figures
Fig. 1.1 Interaction diagram when using the iRZ Collector software solution –the modem operates in a client
mode.......................................................................................................................................................................7
Fig. 1.2 Interaction diagram when using the iRZ Collector software solution –the modem operates in a server
mode.......................................................................................................................................................................7
Fig. 2.1 ATM functional diagram..........................................................................................................................13
Fig. 2.2 Front panel..............................................................................................................................................14
Fig. 2.3 Back panel ..............................................................................................................................................14
Fig. 2.4 Mini USB Connector................................................................................................................................15
Fig. 2.5 DB9 connector ........................................................................................................................................16
Fig. 2.6 Power Connector ....................................................................................................................................17
Fig. 2.7 Plug terminal connector ..........................................................................................................................17
Fig. 2.8 Signal Strength Indicators (a sample for the strength from 16 to 19 via CSQ).......................................19
Fig. 3.1 Removing the SIM Card Tray from the Modem......................................................................................22
Fig. 3.2 Inserting the SIM card into the tray.........................................................................................................23
Fig. 3.3 The ATM modem drawing dimensions ...................................................................................................24
Fig. 3.4 Device mounting –mounting the modem on a DIN rail on the lateral side.............................................24
Fig. 3.5 Device mounting –mounting the modem on a DIN rail on the lateral side.............................................25
Fig. 3.6 Device mounting –mounting the modem on the wall.............................................................................25
Fig. 4.1 Procedure of selecting a production server ............................................................................................35
Fig. 4.2 The diagram of operation with one server without backup.....................................................................35
Fig. 4.3 The diagram of operation with two servers.............................................................................................36
Fig. 4.4 The Diagram of Operation with Two IP Addresses on One Server........................................................36
Fig. 4.5 Outgoing SMS –structural diagram........................................................................................................39
Fig. 4.6 Methods of gaining remote access to the modem..................................................................................47
Fig. 4.7 Types of client authentication at connection to the server modem.........................................................48
Fig. 4.8 Interaction diagram when using the iRZ Collector software solution –the modem operates in a server
mode.....................................................................................................................................................................49

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1. Introduction
1.1. About this Document
The document contains description and operating procedure of the iRZ ATM2-232 GSM/GPRS modem
(hereinafter 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
3.11
12.0
02
01/02/2016
Written by
Y. Petrova, P. Malikova
Approved by
D. Pavlov, G. Samakova
Also refer to
getting started with the ATM Control application and the modem basic setup –the "Setting Up iRZ ATM
Step by Step. ATM Control" document;
setting up the modem via ATM Control –the "User Guide on the ATM Control Modem Configuration
Utility" document;
setting up the modem via AT commands –the "AT Commands to Set Up the iRZ ATM2-232 Modem"
document;
the benefits of the iRZ Collector special-purpose server –the "iRZ Collector. Solution Overview" docu-
ment;
the use of the iRZ Collector dispatcher 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 router in aircraft, take measures against accidental switch-on.
Power off the modem near gas stations, enterprises of chemical industry, in areas where blasting opera-
tions are in progress.
At close range the modem can interfere with television and radio receiver operation.
To ensure safe operation, follow the recommendations:

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Do not expose the modem to aggressive influences (high temperatures, corrosive chemicals, dust, water,
etc.).
Protect the modem from impacts, falls and excessive 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. Damages caused by improper use
and storage of the device are not covered by the warranty.
1.3. Terms and Definitions
Local configuration or updating of firmware –configuration or updating of the modem firmware connect-
ed to a computer via a USB cable. For the ATM modem they are performed via the ATM Control program.
Remote configuration or updating of firmware —configuration or updating of the modem firmware locat-
ed on the site, from the dispatching center. For the ATM modem they are performed via the iRZ Collector dis-
patching application which is used together with the, iRZ Collector server application.
Client modem –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.
Server modem –the ATM modem operating in the server mode, i.e. the modem waits for incoming connec-
tions 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,
accumulation and transmission.
Server –a computer or specialized computer equipment with the installed server software for processing cli-
ent requests (in the terms of a client-server interaction model).
iRZ Collector solution –IRZ-manufactured software solution including the server and the dispatching appli-
cations 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 receive data from the modems, which also act as clients. 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 in-
stalled iRZ Collector server application is referred as the iRZ Collector server.
When the ATM modem operates in the server mode, it accepts connections itself: it no longer requires a bro-
ker 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).

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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 to-
gether with the iRZ Collector server application and enables remote monitoring and control of the system mo-
dems. It can be used in the dispatching center or data collection server as well as in any computer with the op-
erating system supporting the application.
External devices’polling software is used in the dispatching center to poll external devices and is provid-
ed by their manufacturer. Generally, it operates in the client mode, and therefore the following two main meth-
ods are used to interact with the modem: First –the modem operates in the client mode, and a special-purpose
"layer" (for example, the iRZ Collector server application) is used to interact with it. Second –the modem oper-
ates in the server mode that enables third-party software to connect it directly. However in the second case
each modem requires an external
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static IP address.
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If your company rents an access point (APN) from a mobile network carrier, the modem will use an internal static ad-
dress.

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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 server
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–the server where all the system data is accumulated and processed: both data
from external devices and system service data. The client modems 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 operate
as external devices.
SMS command –an SMS message sent to the modem, containing a character-based command of a certain
format.
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Used 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.

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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 –client modem) 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 external
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static 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 supports the use of two SIM cards providing backup mobile access (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 possible with a signal from the modem GPIO pins (see
section "Working with a Server").
The client modem can operate with a standard server (see section "Working with a 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 iRZ Collector Server").
The modem supports data transmission via CSD (voice channel). If there is phone number group 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.
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If 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.

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The modem has additional pins (GPIO) to monitor and control external devices (see section "GPIO Pins Op-
eration"). ATM can send SMS messages at change of pin signal strength enabling remote control of external
devices connected to the modem. The pins state can be changed sending SMS command to the modem ena-
bling remote control of external devices.
The modem features the offline mode supporting all functions except GPRS connection (see section "Offline
mode"). Offline mode provides economy of traffic and power consumption. It is used if there is no need for con-
tinuous connection.
ATM tracks the GSM module hang-up and provides its additional restart by a signal from the configurable
watchdog timer (see section "Watchdog Timers"). GSM module rebooting can be initiated with a phone call
from a group of numbers, specified in ATM Control application (Settings → Advanced→ WDT → Phone No.
for rebooting the module), as well as with the SMS command "XXXX reboot", where XXXX is the access
code for service mode (5492 by default). The modem provides operation within a wide range of input voltages
and temperatures.
During its operation the modem displays messages in the log via USB interface in a real time. To view and
analyse the log on a computer, use any terminal program.
2.2. Using the Document
Modem functions are described in sections "Service Mode", "Offline Mode", "Updating Embedded Software
(Firmware)", "Setting Up the Modem", "Working with SIM Cards", "Connecting to the Server via SMS Com-
mands", "Data Transmission via CSD", "Watchdog Timers", "Real-Time Clock (RTC)", "GPIO Pins Operation",
"Operating with Incoming SMS Messages" can be applied both to "Client" and "Server" modes. In cases
when the action of a function depends on the modem operating mode, it is specified directly in the function de-
scription.
Sections “Working with a Server”and "Working with the iRZ Collector Server " can be applied to Client mode
only; section “Modem Operation in the Server Mode”—can be applied to Server mode only.
In the CSD Only mode the modem cannot operate as a client or a server, data can be transmitted only over
CSD. The CSD Only mode does not support: GPRS connection (including operation with the server), offline
mode, remote firmware updating and settings change as well as the Modbus protocol for a COM port. Other
features are supported in the same way as for the Client and Server modes.