iRZ ES75iT User manual

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Contents
1.Introduction............................................................................................................................. 4
1.1.Document description..................................................................................................................... 4
1.2.Service data................................................................................................................................... 4
1.3.Safety rules.................................................................................................................................... 4
2.General Information................................................................................................................ 5
2.1.Purpose.......................................................................................................................................... 5
2.2.Set ................................................................................................................................................. 5
2.3.Features......................................................................................................................................... 5
2.4.Appearance.................................................................................................................................... 7
2.5.Interfaces....................................................................................................................................... 8
2.5.1. DB9 connector for connecting the communication cable.......................................................... 8
2.5.2. TJ6-6P6C power connector..................................................................................................... 9
2.5.3. USB type B connector........................................................................................................... 10
2.6.Modem status display................................................................................................................... 11
3.Connecting and configuring................................................................................................. 12
3.1.Connecting................................................................................................................................... 12
3.2.Control, rebooting, shutdown........................................................................................................ 12
3.3.Types of watchdog timers............................................................................................................. 13
3.4.Menu mode .................................................................................................................................. 13
3.5.Programming mode...................................................................................................................... 16
4.Emergencies.......................................................................................................................... 19
4.1.Emergency 1 (incorrect input power supply).................................................................................. 19
4.2.Emergency 2 (incorrect module power supply).............................................................................. 19
4.3.Emergency 3 (GSM module failed to start).................................................................................... 19
4.4.Emergency 4 (COM-port not ready).............................................................................................. 19
5.Support.................................................................................................................................. 20

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Tables
Table 2.5.1: Using DB9 connector pins..............................................................................................8
Table 2.5.2: Using connector power pins........................................................................................... 9
Table 2.5.3: Using USB connector pins ...........................................................................................10
Table 2.6.1: Operation mode display (green LED)........................................................................... 11
Table 2.6.2: Emergency display (red LED) ......................................................................................11
Figures
Fig. 2.4.1. Front view......................................................................................................................... 7
Fig. 2.4.2. Back view.......................................................................................................................... 7
Fig. 2.5.1. DB9 connector..................................................................................................................8
Fig. 2.5.3. Power connector...............................................................................................................9
Fig. 2.5.4. USB connector type B.....................................................................................................10
Fig. 3.1. Main view...........................................................................................................................16
Fig. 3.2. Port opening....................................................................................................................... 17
Fig. 3.3. File uploading.....................................................................................................................17
Fig. 3.4. File is uploaded.................................................................................................................. 17
Fig. 3.5. Flash-memory writing.........................................................................................................18
Fig. 3.6. Exiting program mode........................................................................................................18

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1. Introduction
1.1. Document description
This manual is intended for experienced PC users. It describes the device and the operation of the GSM
modem iRZ ES75iT.
1.2. Service data
Document version Issue date
2.2 10.17.2013
Prepared by V.N. Golovin Approved by P.A. Kosolapov
1.3. Safety rules
Restrictions on the use of the device near other electronic devices:
Turn the modem off in hospitals or when located near medical equipment such as pacemakers, hearing
aids and so on. Interference for medical equipment may occur;
Turn the terminal off when on an airplane. Take measures to avoid accidental turning on;
Turn the modem off in the vicinity of gas stations, chemical plants, and places where demolition work is
conducted. Interference for technical devices may occur;
At a close range, the modem may produce interference for television sets and radio transmitters.
Maintenance requirements:
Protect the modem against external hazards (high temperatures, caustic chemicals, dust, water and so
on);
Keep the modem safe from blows, falls, and strong vibrations;
Do not attempt to take apart or modify the modem on your own. Such actions will void your warranty.
Note: Make sure you follow the operation manual for this device. Improper use of the device will disqualify
your warranty.

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2. General Information
2.1. Purpose
ES75iT is an industrial GSM modem for receiving and transmitting data through a GSM channel (EDGE,
GPRS). It is perfectly suited both for providing mobile access to the Internet and for industrial applications
including telemetry, wireless data collection from sensors, remote monitoring, control, and signaling.
The modem is equipped with a watchdog timer, which allows for an unconditional reboot of the equipment
after a specified period of time. The modem is controlled by standard AT-commands and also possesses its
own range of control commands. The device is equipped with LEDs to monitor connection status and signal for
emergency.
2.2. Set
The set of the GSM modem ES75iT includes:
ES75iT terminal;
Factory package;
2.3. Features
Key features:
Frequency ranges: GSM 850/900/1800/1900MHz;
Output power:
2W (class 4 for EGSM850/900);
1W (class 1 for GSM1800/1900);
EDGE class 12;
GPRS class 12;
MS class B;
CSD up to 14.4 kbps;
USSD;
SMS: MT, MO, CB, Text and PDU modes;
Fax group 3, class 1;
Power:
Power supply from 9 to 30V;
Consumption current not exceeding:
with the supply voltage of +12V - 200mA;
with the supply voltage of +24V - 100mA;

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Physical characteristics:
Dimensions not exceeding 70х74х33 mm;
Weight not exceeding 105g;
Operating temperatures from -30°Сto +60°С;
Interfaces:
DB9-F connector for connecting the communication cable with RS232 interface;
USB type B connector for connecting the communication cable with USB 2.0 interface;
FME Jack (male) for connecting the GSM antenna;
TJ6-6P6C for RJ12 power connector for powering the modem.

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2.4. Appearance
Terminal ES75iT is a compact device in a durable and light case. Its appearance is displayed on Fig. 2.4.1
and Fig. 2.4.2.
Fig. 2.4.1. Front view
Fig. 2.4.2. Back view
The numbers on Fig. 2.4.1 and Fig. 2.4.2 stand for:
1. USB-B connector for connecting the communication cable with USB 2.0 interface;
2. LED;
3. SIM-card tray;
4. SIM-card tray eject button;
5. DB9-F connector for connecting the communication cable with RS232 interface;
6. TJ6-6P6C power connector;
7. FME Jack (male) for connecting the GSM antenna;

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2.5. Interfaces
2.5.1. DB9 connector for connecting the communication cable
This connector is used for connecting to the control device using the RS232 exchange protocol (for service
mode only). Factory settings of the port: speed 115200Kbit/s, 8 bits of data, no parity, stop bit – 1. The AT-
commands are used to control the modem operation (see the module description). The appearance of the
connector is displayed on Fig. 2.5.1:
Fig. 2.5.1. DB9 connector
Table 2.5.1: Using DB9 connector pins
Pins Signal Direction Purpose
1 DCD Modem-PC Presence of the carrier
2 RXD Modem-PC Data reception
3 TXD PC-Modem Data transmission
4 DTR PC-Modem Readiness for data reception
5 GND General Ground
6 DSR Modem-PC Data readiness
7 RTS PC-Modem Request to transmit
8 CTS Modem-PC Readiness for data transmission
9 RI Modem-PC Call signal
The purpose of pins is consistent with the serial interface with V.24 protocol.
The length of the cable is not to exceed 1.8 m. It is recommended to set data transfer speed that does not
exceed 115200 bit/s.

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Attention: RS232 standard (COM-port) does not support a "hot" connection.
To avoid damaging the COM-port of the modem connect and disconnect the device at least 5 seconds after
the power of the connecting devices has been turned off.
2.5.2. TJ6-6P6C power connector
The connector is used to power the device and reset the module. Its appearance is displayed on Fig. 2.5.2.
Fig. 2.5.2. Power connector
Table 2.5.2: Using connector power pins
Contact
Signal Purpose
1 + 12V The positive pole of DC supply voltage. Fused circuit and overvoltage
protection (when applied to the input voltage of over 30V) and reverse
polarity
2 Not used
3 Not used
4 Not used
5 Not used
6 GND Ground

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2.5.3. USB type B connector
The connector is used to connect to the control device using USB 2.0 interface. Its appearance is displayed
on Fig. 2.5.3.
Fig. 2.5.3. USB connector type B
Table 2.5.3: Using USB connector pins
Contact
Signal Purpose
1 V BUS +5V (used as input to determine USB connection)
2 D− Data transmission
3 D+ Data transmission
4 GND Ground