Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 9
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
Operating Temperatures -20° to +55°C
Storage Temperatures -40° to +85°C
Humidity Relative humidity 20% to 90% noncondensing
Certifications EMC: FCC Part 2, 15, 22, 24, EN 55022, EN 55024
Safety: cUL, UL 60950, EN 60950
Network: CDG 1 & 2
Functions – CDMA USB Modes
Mode Description
Standard Dual Band 800/1900 CDMA
Interface USB 12 Mbps. AT command set based on TIA/EIA/IS707.3, V.25ter and CDMA 07.05 & 07.07
SMS Mobile Originated (MO) and Mobile Terminated (MT), Over the Air Activation (OTA), OTASP,
and OTAPA
Data Asynchronous 2400, 4800, 9600, and 14400 bps.
Transparent and Non-Transparent modes.
Mode 3.1 KHz (PSTN) and V110 (ISDN).
Fax 2400/4800/7200/9600 bps
Class 2.0 Group 3 compatible.
Electrical Characteristers

Electrical Characteristics

Switching the modem on/off The device is permanently powered by the PC.
Voltage Range Voltage range : 4.75 to 5.25 coming from the PC
Overvoltage and Undervoltage Correct operation of the Wireless MultiModem in communication mode is
not guaranteed if input voltage falls below 4.75.
Current Requirement
Parameters 800 MHZ 1900 MHZ
Typ. Typ. Unit
Input supply current in comm. mode at full Tx power 500 500 mA
Input supply current in comm. mode at average Tx power 240 250 mA
Input supply current in idle mode 50 50 mA