... protocol, make convenient theremote, high-speed and transparent data transmission;With watchdog for hardware and software, guarantee the stability of ... .8V, 3V;l InterfaceRS232: serial data rate of 1,200~115,200bits/s;USB: USB2.0;Support full AT commands ... /500MA; Power consumption: Standby mode 30mA@+9VDC,Running mode: 200 to 400mA@+9VDCl Environment FeaturesWorking environment temperature: -20°C to ...