4G LTE DTU Serial RS232 RS485 4G Modem

Introduction USR-G780 is a 4G DTU modem which support TDD -LTE, FDD-LTE, WCDMA, TD-SCDMA and GSM network. Users can realize serial to network bidirectional transparent data transmission via simple configuration. And the device supports custom identity header, heartbeat packet, 4 Socket connection and USR-Cloud. Features Support TDD-LTE, FDD-LTE, WCDMA, TD-SCDMA, GSM/GPRS/EDGE network Based on embedded Linux system, has high stability Support RNDIS remote network driver interface, USB connection Support 4 sockets, support TCP and UDP Each connection supports 4KB data cache, can choose data cache to avoid data loss in abnormal connection Support sending identity header and heartbeat packet Support remote configuration via
SMS Work modes: network transmission mode and HTTPD mode Support basic instruction set Support socket distribution protocol, can send data to different Sockets FTP else upgrade protocol, apply to remotely update device FTP itself upgrade protocol, make firmware the latest version Support sending Chinese/English SMS via simple instructions Support class RFC2217, can modify module serial parameter via network dynamically