NEC NEAX 2400 IPX Programming Manual page 211

4. System Message
1. "23-P" Automatic changeover for Dch Backup
1: XX XX XX XX
Location of Primary side Dch
MG
Condition: 1=Start
2. "23-Q" Manual changeover for Dch Backup
1: XX XX XX XX
Location of Primary side Dch
MG
Condition: 1=Start
XX XX
Location of Backup side Dch
Unit Group
MG
Unit
Group
2=Normal End
3=Failure
XX XX
Location of Backup side Dch
Unit
Group
MG
Unit Group
2=Normal End
3=Failure
Backup Dch Primary Dch
0= ACT
1= STBY
2= Out of Service
3= MB
4= Waiting (Under changing)
5= Manual changeover is out of service
00= SERV. message is received
01= SERV. message is sent
Backup Dch Primary Dch
0= ACT
1= STBY
2= Out of Service
3= MB
4= Waiting (Under changing)
5= Manual changeover is out of service
00= Changeover by MAT
01= Changeover by circuit card MB
02= Changeover by Dch MB
03= Not define the way of changeover
NDA-24305
D-CHANNEL BACKUP - PRI
00: Changeover Primary→Backup
01: Changeover Backup→Primary
10: Primary is set to ACT
11: Backup is set to ACT
00: Changeover Primary→Backup
01: Changeover Backup→Primary
10: Primary is set to ACT
11: Backup is set to ACT
CHAPTER 6
Page 193
Revision 1.0