A. By default, the incident optical power of each optical fiber is the special incident optical power (high power).

B. If the output optical power of the downstream OA meets requirements in the case of the minimum pain, the upstream incident optical power cannot be lower than the incident optical power counters.

C. If the output optical power of the downstream OA still does not meet requirements, increase the gain of the downstream OA.

D. If the output optical power of the downstream OA does not meet requirements in the case of the minimum gain, reduce the attenuation value of the upstream EVOA first to a value within the range required by incident optical power counters.

A. Ultra-large capacity and ultra-long haul transmission

B. Transparent transmission of data

C. Various overheads

D. Flexible, economical, and reliable networking

A. You should check networks before NEs.

B. You should check bidirectional transmission before unidirectional transmission.

C. You should check for external faults before internal faults.

D. You should check single-wavelength services before multi-wavelength services.

A. G.654

B. G.655

C. G.653

D. G.652

A. The FAS is not scrambled.

B. OTUk_LOF is generated when FAS framing fails.

C. The FAS is located at the start position of the OTN frame structure.

D. The value of FAS changes dynamically with different signals.

A. False

B. True

A. In SAToP mode, the frame structure of TDM signals does not need to be identified, and the TDM signals are processed as serial data bit streams, divided into TDM bit streams by integer multiple of the E1 frame length, and then encapsulated into PWE3 packets for transmission.

B. In SAToP mode, overheads and payloads in TDM signals are transparently transmitted, and alarms can be transparently transmitted.

C. The number of E1 frames that are encapsulated in a CESoPSN packet is determined by the value of
"Packet Loading Time". The period of a TDM frame is 125 us. As a result, if the value of "Packet Loading Time" is 1 ms, each PW packet will load eight TDM frames.

D. The control word of SAToP packets is optional.

A. FALSE

B. TRUE

A. It is a reconfigurable optical add/drop multiplexing unit.

B. It is a 9-port wavelength selective multiplexer/demultiplexer board (Super C band).

C. It implements optical-layer service grooming for multiple wavelengths.

D. It supports optical power adjustment and online optical power detection.