Which of the following logic function blocks are involved in processing clock signals? (Multiple choice).
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.
Which of the following are device-level protection schemes for SDH products? (Multiple choice).
Optical module parameter "L-64.2" in the "2" indicates which of the following working windows?
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.
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