NEC UNIVERGE SV8500 - Page 466

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CHAPTER 3 System Messages
Changeover Information
Status of the Primary/Back-up Dch
EVENT number
b7 b3 b2 b1 b0
b7 b5 b4 b3 b2 b1 b0
b7 b6 b5 b4 b3 b2 b1 b0
b0, b1:
00 = Change from Primary Dch to Dch for Back-up
01 = Change from Dch for Back-up to Primary Dch
10 = Place Primary Dch to ACT status
11 = Place Dch for Back-up to ACT status
b2, b3:
00 = Change signal is received
01 = Change signal is sent
4
b0-b2: Status of Primary Dch
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
b3-b5: Status of Primary Dch
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
5
b0-b7: EVENT number
6