Hello Dear
RTN is a high quality MW link series from Huawei used to join 2 sites together depending on link design
-RTN family RTN9xx,RTN6xx,RTN3xx
-For installation u should now that IF system consist of 3 parts IDU(RTN indoor unit) +IF cable + ODU
and depending on link design
-For configuration also depending on link design sheet and u can review this post for how to login RTN
https://forum.huawei.com/enterprise/en/how-to-login-rtn-mw-link/thread/669987-100560 -Finally i will make a full PDF ISA for all u want dear
hope that i introduce a brief info about RTN