NEC Univerge SV8500 Operation And Maintenance Manual page 468

4
Detailed information on changing
Dch
b7 b3
5
Status of Primary/Back-up Dch
b7 b5 b4 b3
6
EVENT number
b7 b6 b5 b4 b3
b0, b1:
b2 b1 b0
b2, b3: Way of changing
b0-b2: Status of Primary Dch
b2 b1 b0
b3-b5: Status of Back-up Dch
b0-b7: EVENT number
b2 b1 b0
00 = Change from Primary Dch to Dch for Back-up
01 = Change from the Dch for Back-up to Primary Dch
10 = Place Primary Dch to ACT status
11 = Place Dch for Back-up to ACT status
00 = Changed by the MAT
01 = Changed by the MB switch of the circuit card
02 = Changed by placing Dch to Make-Busy
03 = Unknown
0 = In Service
1 = Standby
2 = Out of Service
3 = Make Busy
4 = Changing status from STBY to In Service
5 = Manual Out of Service
0 = In Service
1 = Standby
2 = Out of Service
3 = Make Busy
4 = Changing status from STBY to In Service
5 = Manual Out of Service
– 421 –
CHAPTER 3 System Messages