价格：面议
深圳市百汇科技有限公司
联系人：李凌燕
电话：13424151239
地址：深圳市福田区福华三路恒运豪庭2栋21A
产品规格：M23/M22
产品数量：不限 个
包装说明：中性
关 键 词：M23/M22
行 业：
发布时间：2011-11-07
Model M22 Product Feature Tri-Band GSM/GPRS module : EGSM900/DCS1800/PCS1900 Compliant with GSM Phase 2+ standard Control via AT commands Supply Voltage range from 3.3v to 4.2v Voice HR/FR/EFR Noise deduction, echo cancellation Telephony Emergency Call Dual Tone Multi Frequency Function (DTMF) Short Message Service (SMS) Delivery Report Point to point MT/MO Cell Broadcast GSM Circuit Switched Data Asynchronous Transparent/ non-transparent Up to 14.4kbps GPRS Packet Data GPRS Class B GPRS Multi-slot Class 4 4 slot downlink (86.6kbps), 2 slot uplink (42.8kbps) max 5 slot Coding Schemes : CS1 to CS4 Supplementary Services Number identification Call forwarding (Call Divert) Call completion Multi Party Charging Call barring Interface Antenna Interfaces : RF connector support coaxial cable RF pads support RF cable soldering 44-pin B2B connector including : UART/RS232 SIM (1.8V/3V) General Purpose I/Os Analog audio input/output Power supply connection AT command set according to GSM 27.05, 27.07 General Information Dimension : 55.5 x 40 x 5.95 mm Weight : 15 g Operating Temperature : - 20 ~ + 60 °C Functional Temperature :- 20 ~ + 70 °C Storage Temperature : - 40 ~ +85 °C Q