减贫战略的DTU调制解调器

Wirelessmodem Support dual band EGSM900/GSM1800 Transparent data transmission, always online and operation mode selection Support the virtual private data network Support data service center dynamic IP address and domain name Support 15 pin data interface Support remote configuration and maintenance Support near configuration and maintenance Support data interface application update LED displays work status Optimizing electromagnetism compatible design, adaptation to formidable electromagnetism environment and high-level application need Support standard RS-232 data interface Support GSM class 4 transceiverthe maximum is 2W Short Massage Server(SMS),support PDU and Block mode, conformity with GSM07.05 standard conformity with GPRS CLASS 10 standard,up 13.4Kbits/S,down 53.6Kbits/S AT command set, conformity with GSM07.07, GSM07.05 and V25 Hardware Dimensions: 97mm x 54mm x 25mm Weight: 138g Interface Power (AC)input2 pin Signal interfaceRS232 Antenna: SMA (Female) SIM socket: Drawer-structured, 8 pin Work temperature -20°C to +75°C Voltage: +6 to 30V DC Current: Stand by 5mA Average in use 350mA Safe circuit Embedded current surge and over-loading prevention Embedded EMC control circuit, keep external environment from disturbance SIM card detection Working indication After switching on power, indicator light is always on, AC2161 start to work. Indicator light flashing---network has been found. Indicator light quick flashing---transparent data is being transmitting. Short message remote control Hardware watch dog automatically reset