USR-G781 User Manual
Technical Support:
h.usriot.com
Jinan USR IOT Technology Limited
4
Brief Introduction
USR-G781 is a 3G&4G DTU which apply to LTE WCDMA and GPRS. Serial RS232 or RS485 can be transfer to
Internet server via LTE technology. G781 has two Ethernet port for networking accessory.
Features
ARM 9 core and Linux system based.
Supports 2G 3G and 4G LTE. Different version for America, Europe, Australia and other areas.
Support 2 Ethernet RJ45 port. One LAN port, and another one can be set as WAN port or LAN port.
Support 1 SIM card socket.
Support PPTP VPN. LT2P, IPSEC and Open VPN are on developing.
Support DDNS, static routing and firewall.
Support NTP and clock synchronization.
Support Web Server configuration.
Supports 4 connections online simultaneously, supports TCP and UDP
Supports sending network identity packet.
Supports sending heartbeat packet data to network or serial port
Supports 2 serial work modes: Network transparent transmission mode and HTTPD mode
Dual watchdog timer for stability.
