iRZ TU31 User manual

Operation Manual
3G modem iRZ TU31

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Table of Contents
1.Introduction............................................................................................................................. 4
1.1.About this Document ............................................................................................................................4
1.2.Service Information...............................................................................................................................4
1.3.Safety Precautions ...............................................................................................................................4
2.Overview.................................................................................................................................. 5
2.1.Purpose ................................................................................................................................................5
2.2.Package Contents ................................................................................................................................5
2.3.Specifications........................................................................................................................................5
2.4.Device View..........................................................................................................................................7
2.5.Interfaces..............................................................................................................................................8
2.5.1. Interface connector (RS232).........................................................................................................8
2.5.2. Power Connector..........................................................................................................................9
2.5.3. USB connector............................................................................................................................10
2.6.Modem Status Indicators....................................................................................................................11
3.Connection, configuration and control................................................................................ 12
3.1.Connecting, operating mode ..............................................................................................................12
3.2.Control, Reset and Power Off.............................................................................................................13
3.3.Menu mode.........................................................................................................................................13
4.Emergencies.......................................................................................................................... 17
4.1.Emergency 1 (incorrect input power supply)......................................................................................17
4.2.Alarm 2 (incorrect module power supply)...........................................................................................17
4.3.Emergency 3 (GSM module failed to run)..........................................................................................17
5.Support.................................................................................................................................. 18

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Tables:
Table 2.5.1 Interface connector's pin assignments.................................................................................. 8
Table 2.5.2 Power connector pin assignments........................................................................................ 9
Table 2.5.3 USB connector pin assignments........................................................................................ 10
Table 2.6.1 Operation mode indication (green LED).............................................................................. 11
Table 2.6.2 Fault condition indication (red LED).................................................................................... 11
Figures:
Fig. 2.1 Front panel ............................................................................................................................. 7
Fig. 2.2 Back panel.............................................................................................................................. 7
Fig. 2.5.1 Interface connector ............................................................................................................... 8
Fig. 2.5.2 Power Connector.................................................................................................................. 9
Fig. 2.5.3 USB connector................................................................................................................... 10

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1. Introduction
1.1. About this Document
The operation manual is intended for skilled PC users and provides the description and operating
procedure of the iRZ TU31 3G modem.
1.2. Service Information
Document version
Issue Date
2.1
18/02/2016
Prepared by:
V. Golovin
Checked by:
B. Makatrinskiy
1.3. Safety Precautions
Restrictions on the router use near other electronic devices:
Power off the modem in medical centres and keep it away from medical equipment (cardiac
pacemakers, hearing aids). Medical equipment may be susceptible to any form of radio interference. In
such areas the modem can transmit signals that could interfere with this equipment.
Power off the modem in an aircraft. Take measures against accidental activation.
Power off the modem near gas stations, enterprises of chemical industry, in areas where blasting
operations are in progress. The modem can interfere with operation of technical devices.
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, 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.

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2. Overview
2.1. Purpose
The iRZ TU31 3G modem is an industrial GSM modem designed for high-bandwith data and text
messages transmission over GSM channel. It is well-designed for mobile Internet access, as well as for
industrial applications: telemetry, wireless data collection from sensors, remote surveillance and signalling.
The modem is implemented with function of unconditional reset upon set time intervals. The modem is
controlled via standard AT commands as well as some control commands of its own. It is fitted with LED lights
to indicate connection status and possible faults.
2.2. Package Contents
iRZ TU31 3G modem set:
TU31 terminal;
original package.
2.3. Specifications
General characteristics:
Frequency bands:
900/1800 MHz for GSM/GPRS/EDGE;
900/2100 MHz for HSPA+/UMTS;
Output power:
33 dBm (Class 4) for EGSM900;
30 dBm (Class 1) for GSM1800;
27 dBm (Class E2) for GSM900 8-PSK;
26 dBm (Class E2) for GSM1800 8-PSK;
24 dBm (Class 3) for UMTS2100, WCDMA FDD BdI;
24 dBm (Class 3) for UMTS900, WCDMA FDD BdVIII.
Standards and data transmission rates:
HSPA+ download —7,2 Mbps, upload —5,7 Mbps;
UMTS PS download —384 kbps, upload —384 kbps;
UMTS CS download —64 kbps, upload —64 kbps;
EDGE Class 12, download —236.8 kbps, upload —236,8 kbps;
GPRS Class 12, download —85,6 kbps, upload —42,8 kbps;
MS Class B;
USSD;
SMS: MT, MO, Text and PDU.

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Power Supply
Power voltage –9 to 30V
When powered through USB, 5V
current consumption:
At a supply voltage of +12V –max 400 mA
At a supply voltage of +24V –max 200 mA
Physical Specifications
Dimensions –max 69x75x26 mm;
weight: max 125 grams;
Operating temperature: -30°С to +60°С;
Storage temperature: -40°С to +85°С.
Interfaces and Connectors:
USB connector (type B) –data cable connection, USB 2.0 interface, modem power supply;
Interface connector DB9-FF —connection of communication cable and RS232 interface;
FME-M antenna connector —connection of the GSM antenna;
TJ6-6P6C power connector —modem power, reset signal.

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2.4. Device View
The TU31 modem is a compact-size device encased in a plastic housing. The device general view is given
in Fig. 2.1 and Fig. 2.2.
Fig. 2.1 Front panel
Fig. 2.2 Back panel
The numbers in the figures illustrate:
1. USB connector (B type) –connection of communication cable;
2. LED status (green) and error (red) indicators;
3. SIM card tray;
4. Eject button for SIM card tray;
5. Interface connector DB9-FF, connections of communication cable;
6. Power connector TJ6-6P6C, power connection;
7. Antenna connector FME-M, connections of a GSM antenna.

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2.5. Interfaces
2.5.1. Interface connector (RS232)
The DB9 connector is designed for connection to a control device via RS232 interface. Factory settings:
connection speed of 115200 bps, 8-N-1. The view of the connector is shown in Fig. 2.5.1:
Fig. 2.5.1 Interface connector
Table 2.5.1 Interface connector's pin assignments
Pin
Signal
Direction
Function
1
DCD
Modem-PC
Carrier Detect
2
RXD
Modem-PC
Receive Data
3
TXD
PC-Modem
Transmit Data
4
DTR
PC-Modem
Data Terminal Ready
5
GND
Ground
System Housing
6
Not used
7
RTS
PC-Modem
Request To Send
8
CTS
Modem-PC
Clear To Send
9
RI
Modem-PC
Ring Indicator
Pin assignments match serial interface with V.24 protocol.
Cable length must not exceed 1,8 m. It is not recommended to use transmission speed above 115200 bps.
Note: The RS232 (COM port) standard does not allow hot plugging.
To prevent damage to the modem's COM port, be sure to connect and disconnect devices after at least 5
seconds upon powering them off.

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2.5.2. Power Connector
Main designation of TJ6-6P6C is connecting the modem's power supply. The modem is also fitted with
emergency reset pin. The view of the connector is shown in Fig. 2.5.2.
Fig. 2.5.2 Power Connector
Table 2.5.2 Power connector pin assignments
Pin
Signal
Function
1
+Vin
Positive terminal of constant power supply voltage. Protected by a fuse and
overvoltage (at input power supply over 30V) and reverse polarity protection
circuit. Range of voltage: 9 V to 30 V
2
Not used
3
RESET
Modem reset –send positive impulse (10 to 20 V) with length above 50 ms
4
Not used
5
Not used
6
GND
System Housing

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2.5.3. USB connector
USB connector (B type) is used for connection to managing device via USB 2.0 interface. The view of the
connector is shown in Fig. 2.5.3:
Fig. 2.5.3 USB connector
Table 2.5.3 USB connector pin assignments
Pin
Signal
Function
1
+5V
Modem power, consumption no more than 500 mA
2
D−
Transmit Data
3
D+
Transmit Data
4
GND
System Housing