A.AU-PTR indicates the position of the JO byte.

B.The root cause of the AU pointer justification is that the clocks of the upstream and downstream stations are not synchronized.

C.If the receive end detects that the H1H2 bytes are "1", the local end generates the AU-AIS alarm.

D.The value of the AU-PTR pointer is placed in the last 10 bits of the HI and H2 bytes. Therefore, the valid value of the AU-PTR pointer is 0-1023.

A.EFI

B.EFI1

C.SCC

D.EFI2

A.Telecommunications Exchange

B.E&M voice exchange

C.Softswitch platform

D.PBX

A.The PM_BIP8_OVER alarm indicates the PM segment error amount of the ODU layer is over-limit alarm.

B.The PM_BIP8_SD alarm indicates the PM segment signal degradation alarm in the ODU layer.

C.The PM_BIP8_DEG alarm indicates the PM segment signal degradation alarm in the ODU layer.

A.False

B.True