Supply Huawei MC323-a Shu CDMA 2G module Brand: Huawei Model: MC323-a messaging content: can support networks: CDMA frequency: 800MHz Antenna connection: 50Ω GSC RF antenna connector interest mode: can audio interface types: two analog audio interface Communication Interface Type: 50pin B2B phone book function: Dimensions: 35 mm × 32.5 mm × 3.05 mm (mm) Product Features dual-band support work: CDMA2000 1X 800MHz operating temperature at normal temperature: -20 ° C ~ + 70 ° C extended temperature: -30 ° C ~ + 75 ° C Supply Voltage 3.3V ~ 4.2V (recommended 3.8V) protocol support for IS-2000 supports IS95A / B AT Commands see MC323-a module AT command manual 50PIN B2B connector UART interfaces (up to a maximum serial rate 230400bit / s) standard RUIM card interface (1.8V or 3V) two-channel analog audio interface Power Interface GSC RF antenna connector 50Ω GSC RF antenna connector MO Short Message Service and Support MT SMS mode supports TXT format data services CDMA2000 1X (rel.0): UL 153.6 kbps / DL 153.6 kbps embedded TCP / IP protocol supplementary service Caller ID, call forwarding, call hold, call waiting, three-way calling, and other physical properties of size : 35mm X 32.5mm X 3.05mm Weight: 6.0g authentication information ROSH, CE, FCC, CMIIT, CCC