ALIENTEK
高性能 GSM/GPRS 模块
用户手册 www.alientek.com
1
目 录
1.特性参数 .................................................................................................................... 1
2.使用说明 .................................................................................................................... 3
2.1 模块简介 ........................................................................................................................... 3
2.2 模块硬件资源详解 ........................................................................................................... 5
2.2.1 GSM 模块(U2)......................................................................................................... 5
2.2.2 RTC 后备电池(BAT1 ) ......................................................................................... 5
2.2.3 麦克风(MIC)/耳机接口(PHONE) .......................................................................... 5
2.2.4 RS232 选择接口(P3) ............................................................................................... 5
2.2.5 RS232 串口(RS232_COM) ..................................................................................... 5
2.2.6 锂电池接口(P6) ...................................................................................................... 5
2.2.7 电源输入接口(DC_IN) .......................................................................................... 5
2.2.8 电源指示灯(PWR) ................................................................................................. 6
2.2.9 电源开关(K1) ......................................................................................................... 6
2.2.10 翻盖式 SIM 卡座(U4) .......................................................................................... 6
2.2.11 SMA 天线接口(J1) ................................................................................................ 6
2.2.12 开机/关机按键(PWR_KEY) ................................................................................ 6
2.2.13 网络状态指示灯(NET_STA) ............................................................................... 6
2.2.14 引出 IO 口(P1/P2/P4/P5) ...................................................................................... 6
2.3 模块使用 ........................................................................................................................... 7
2.3.1 使用前准备 ............................................................................................................. 7
2.3.2 AT 指令简介 ............................................................................................................ 8
2.3.3 拨打/接听电话 ........................................................................................................ 9
2.3.4 短信的读取与发送 ............................................................................................... 12
2.3.5 GPRS 通信 ............................................................................................................. 17
3.结构尺寸 .................................................................................................................. 27
4.其他 .......................................................................................................................... 28