Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MultiModem EDGE Wireless Modem User Guide 7
General Specifications

General Specifications

Power Requirements 5 V to 32VDC; 400mA Average @5V, 1A Peak @ 5V
Circuit Switched Data/Fax Features Asynchronous, non-transparent up to 14.4K bps
Group 3 Fax, Class1
Mechanical Dimensions & Weight 4.3" L x 2.4" W x 0.94" H; 4.2 oz.
(11 cm x 6.1 cm x 2.4 cm; 119 g)
Connectors & Fasteners Antenna Connection type: Standard 3V SIM receptacle
Serial Connector: 15-pin RS232 SUB D female (DE15S)
Pins: RS232 link, audio link, BOOT, RESET
Power Connector: 2.5mm miniature power jack (screw-on)
Operating Temperatures -30° to +65°C
Storage Temperature -40° to +85°C
Humidity Relative humidity 20% to 90% noncondensing
Certifications CE Mark, R&TTE
EMC: FCC Part 2, 15 Class A, 22, 24, EN 55022 & EN 55024
Safety: cUL, UL 60950, EN 60950
Network: PTCRB
Electrical Specifications

Electrical Characteristics

Switching the GSM modem on/off The device is permanently powered (when connected to the power
supply).
Voltage Range Voltage range : 5 to 32V DC
GND : 0V
Over voltage and Under voltage Correct operation of the Wireless MultiModem in communication
mode is not guaranteed if input voltage falls below 5V.

Input/output electrical characteristics for external connections

Parameters GSM/GPRS 850/900 GSM/GPRS 1800/1900 Unit
Typ. Typ.
Input Supply Voltage 5 13.2 32 5 13.2 32 V
Input peak supply current in comm. mode at Pmax 1 .4 .2 1 .4 .2 A
Input average supply current in comm. mode at
Pmax 360 150 75 300 125 70 mA
Input average supply current in idle mode 30 10 10 30 10 10 mA
RF Specifications
GSM 850 EGSM 900 GSM 1800 GSM 1900
Frequency RX 869 to 894 MHz 925 to 960 MHz 1805 to 1800 MHz 1930 to 1990 MHz
Frequency TX 824 to 849 MHz 880 to 915 MHz 1710 to 1785 MHz 1850 to 1910 MHz
RF Power Stand 2W at 12.5% duty
cycle 2W at 12.5% duty
cycle 1W at 12.5% duty
cycle 1W at 12.5% duty
cycle