USR IOT USR-G781 - Brief Introduction; Features

USR-G781 User Manual Technical Support: h.usriot.com
Jinan USR IOT Technology Limited
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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.