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提示信息| 电话薄功能： | 有 | 频段： | 850/900/1800/1900（MHz） |
| 支持网络： | GSM/GPRS | 信息传送内容： | 都可以 |
| 型号： | MG2639 | 短信息模式： | 都可以 |
| 品牌： | 中兴 | 电源电压： | 3.4-4.25（V） |
| 外形尺寸： | 30.0×25.0×2.68（mm） | 通讯接口型式： | 串口 |
| 发射功率： | 1-2（W） |
中兴MG2639无线模块是一款GSM/GPRS无线模块，双频四频可选。具有丰富的语音、短信、数据业务等功能。采用邮票孔连接器，体积小，连接可靠，适用于对体积有要求的手持终端等行业，在数据监控，直放站等行业应用广泛。
- 支持语音/数据/短信
- 双频四频可选
- GPRS class 10
- 丰富的AT接口
- 内置TCP/IP协议栈
- 高稳定性能
- 支持多路复用功能/CSD/USSD功能
- 支持数据透传功能
| MG2639 | |
| General Features | |
| Frequency Bands | Dual Band: 900/1800MHz Quad Band: 850/900/1800/1900MHz |
| Dimensions | 30×25×2.68mm |
| Weight | 6.5g |
| Operating Temperature Range | -30℃~+80℃ |
| Storage Temperature Range | -40℃~+85℃ |
| Performance | |
| Operating Voltage Range | 3.3V~4.2V/Typical: 3.8V |
| Current Consumption Typically | Idle Current: 2.5mA@DRX9 |
| GPRS Current: 300mA@MAX | |
| Max Current: 1800mA@-106dBm | |
| TX Power | GSM850/EGSM900: Class 4 (2W) |
| DCS1800/PCS1900: Class 1 (1W) | |
| RX Sensitivity | -106dBm |
| Interfaces | |
| Connector | 50Pin Board-to-board Connector |
| Antenna | U.FL-R-SMT 50Ω Antenna Connector Antenna Solder Pad |
| Integrated Full Duplex UART | AT/Data |
| Accessorial Full Duplex UART | Debug |
| SIM Card Interface | 1.8V/3.0V |
| Data Features | |
| GPRS | Class 10 |
| Mobile Station | Class B |
| Max Downlink | 85.6Kbps |
| Max Uplink | 42.8Kbps |
| Coding Schemes | CS1-CS4 |
| Internal TCP/IP & UDP/IP Protocol Stack | |
| TCP Server/Client | |
| Embedded FTP | |
| Cell Indication | |
| SMS Features | |
| Support TEXT/PDU Mode | |
| Point-to-point MO/MT | |
| SMS Cell Broadcast | |
| Voice Features | |
| Double Channels & High-quality Voice | |
| 2SPK/2MIC Analog Audio | |
| Vocoders HR/FR/EFR | |
| Echo Cancellation | |
| Volume Control | |
| Support DTMF | |
| DAI Interface (PCM) | |
| AT Command Set | |
| GSM 07.05 | |
| GSM 07.07 | |
| Extended AT Commands | |
