Chapter 2 – Installation
Multi-Tech Systems, Inc. MultiModem GPRS USB Wireless Modem User Guide 7
General Specifications

General Specifications

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: SMA jack
Interface Connector: USB Type B
Phone Handset: Modular handset jack
SIM receptacle: Standard 3V SIM receptacle
Operating Temperatures -30° to +70°C
Storage Temperatures -40° to +85°C
Humidity Relative humidity 20% to 90% noncondensing
Certifications CE Mark, R&TTE
EMC: FCC Part 2, 15, 22, 24, EN 55022 & EN 55024
Safety: cUL, UL 60950, EN 60950
Network: PTCRB
Functions – GSM/GPRS Modes
Mode Description
Standard Quad Band 850/900/1800/1900 MHz
Interface USB interface. USB Type B.
SMS Mobile Originated (MO) and Mobile Terminated (MT) SMS Mode Text & PDU point to point. Cell
broadcast in accordance with GSM 07.05.
Data Data circuit asynchronous, transparent, non-transparent up to 14,400 bits
Fax Class 1 and Class 2 Group 3 compatible.
GPRS Class 10. Coding schemes: CS1 to CS4.
Electrical Specifications

Electrical Characteristics

Switching on/off The device is permanently powered when connected to the USB port.
Voltage Voltage Range: 5 to 32V DC
GND: 0V
Current Requirements
GSM/GPRS 850/900 GSM/GPRS 1800/1900
Parameters Typ. Typ. Unit
Input average supply current in comm. mode at Pmax 360 300 mA
Input average supply current in idle mode 30 30 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