我® USRIOT USR-1」:1206-C User Manual Technical Support: h.usriot.com 1. Get Sta眈 If user has any ques咀on, please submit it back to cust.omer center: h.usriot.com. 1.1. Product introduction USR-LG206-C is half duplex LoRa serial server which supports LoRa concentrat.or communication protocol and can realize communication between user serial device and LoRa concentrator. USR-LG206-C working frequency band are: -L: 398~525MHz; -H: 903~927MHz.