This document provides detailed information on the Huawei CM300 series AT module, including its hardware interfaces, pin definitions, electrical characteristics, and mechanical dimensions. It is designed to assist developers in integrating the module into various wireless terminal products such as fixed phones, PCMCIA wireless cards, and mobile devices.
The module supports CDMA2000 1X standards with 153.6kbps full-duplex data transmission and features EVRC and QCELP codecs. It operates on +3.3V to +4.5V and is available in 450M/800M/1900M frequency variants. The module's compact size (48mm x 35mm x 3mm) and low weight (8g) make it suitable for embedded applications. This manual is written in Chinese.
| Air Interface | CDMA 2000 1X |
|---|---|
| Data Transmission Speed | 153.6kbps (full-duplex) |
| Operating Voltage | +3.3V~+4.5V |
| Operating Current | IDLE:50mA SLEEP:<4mA BUSY MODE:<600mA |
| Operating Temperature | -10ºC ~ +55ºC |
| Dimensions | 48mm x 35mm x 3mm |
It supports CDMA2000 1X with IS95 A/B and IS-2000 protocols.
It provides 153.6kbps full-duplex data transmission.
It operates on +3.3V to +4.5V with idle current of 50mA, sleep current under 4mA, and busy mode under 600mA.
It measures 48mm x 35mm x 3mm and weighs 8g.