NEC SV8500 Operation And Maintenance Manual - page 278
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CHAPTER 3
System Messages
1-U: DLKC Data Transfer Failure (Permanent)
This message displays when DLKC data transfer failure (temporary), shown in System Message [1-V], occurs
more than 16 times an hour. At this time, the faulty DLKC card is down and its switching network automatically
changes over.
System status of faulty DLKC card
Error Code
Details on Switching Network
Default Alarm
Default Grade
Grade Modified
Lamp Modified
MN
3
1:
XXXX
XX00
0000
0000
2:
0000
0000
0000
0000
3:
0000
0000
0000
0000
4:
0000
0000
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
b0
b7
b6
b5
b4
b3
b2
b1
b0
b7
b1
b0
1 2
3
b0:
0/1 = System 0/ System 1
1
01H: Firmware fault
02H: Data transfer time out to DLKC
03H: No answer time out (at DLKC)
04H: Data parity error
2
b0:
Status of Speech Path System (including DLKC)
0/1 = System 0 is ACT/System 1 is ACT
b1:
Status of basic clock
0/1 = System 0 is ACT/System 1 is ACT
3