Question 171
The number of signals multiplexed from ODU2e and ODU2 to ODU3 is 4.
Question 172
When there is no frequency difference and phase difference between VC-4 and AU-4, and between VC-12 and TU-12, the AU-PTR value is 522 and the TU-PTR value is 70.
Question 173
The primary and backup ports of the linear multiplexing segment must be on the same board.
Question 174
MSP is a network-level protection scheme. MSF does not directly protect services, and MSP switching and recovery are not affected even if there is no service on the MSP ring.
Question 175
The transmitting end detects that b6-b8 of the K2 byte is 110, indicating that the transmitting end generates an MS-AIS alarm.