H31-311_V2.5 Exam Dumps - HCIA-Transmission V2.5
The scope of management of OMSn is the path from the input optical port on the multiplexer unit of the sending site to the output optical port on the multiplexer unit of the receiving site, called the optical multiplexing segment (OMS) path.
Compared with dense wavelength division multiplexing (DWDM) systems, crude glass division multiplexing (CWDM) systems provide a certain amount of glass length and transmission distance within (kmkm), which greatly reduces system cost and has strong flexibility
Single-fiber bidirectional WDM systems use only one optical fiber to transmit optical signals in both directions at the same time. Light signals in both directions should be arranged at different wavelengths.
The 1510nm optical monitoring channel can be effectively amplified after passing through EDFA.
When the fiber between node A and node B is disconnected, the RU on node B detects OTS_LOS alarm and will OTS_BDI The ru of the alert inserted into node A of node A forces reports OTS BDI alarms. The board reports och_SSF alarm on the downstream C node.
The value of the MFAS byte increases with the sequence number of the OTUk/ODUK base frame and includes the most () base frames.
In the case of a 1+1 linear MSP, which of the following switching modes does not require the APS protection protocol full (multiple choice) to be enabled