NEC SV8500 Operation And Maintenance Manual - 3-I:
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CHAPTER 3
System Messages
3-I:
Digital Line Failure
This message displays after [3-H] Digital Line Warning lasts in the DTI card over the particular time. This
failure may cause a speech path fault to the DTI card.
Location of faulty PM
Kind of fault
Location of faulty circuit card (This
data is valid when
is 0FH)
Default Alarm
Default Grade
Grade Modified
Lamp Modified
SUP
3
1:
XXXX
0000
XXXX
XXXX
2:
XXXX
XXXX
XXXX
XXXX
3:
XXXX
XXXX
XXXX
XXXX
4:
XXXX
XXXX
0000
0000
5:
0000
0000
0000
0000
6:
0000
0000
0000
0000
7:
0000
0000
0000
0000
8:
0000
0000
0000
0000
9:
0000
0000
0000
0000
b7
b6
b5
b4
b3
b2
b1
b0
b7
b6
b5
b4
b3
b2
b1
b0
b7
b6
b5
b4
b3
b0
1 2
3 4
3 4
3 4
3 4
3 4
3 4
3 4
3 4
3 4
3 4
3 4
b0-b4: Group
b5, b6: Unit
b7:
0/1 = Even-numbered MG/Odd-numbered MG
1
01H = Frame alignment loss occurs 100 times a day
03H = Slip occurs 50 times a day
04H = Multi-frame alignment loss occurs 110 times a day
06H = Frame alignment loss lasts for two to three seconds
07H = Bit error rate is over 10
-4
09H = Warning signal (AIS) from the opposite office has been received for
one second continuously.
0BH = Multi-frame alignment loss lasts for two to three seconds
0FH = Digital Line is not restored
2
b3-b7: Group number
3
2