USR-G781 is an industrial cellular modem router, which provides a serial to cellular networking solution. Provide serial and Ethernet Connectivity to PLC, RTU, Data Loggers, Wireless SCADA applications and IP cameras at remote sites. It supports 2 10/100Base-T(X) self-adaptive Ethernet interface and 1RS485 port, hardware watchdog, rugged metal casing and wall mounting. It also supports VPN(PPTP) client, static routing, Firewall and QoS.