NEC NEAX 2000 IVS2 Maintenance Manual page 122

CHAPTER 2 TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
Table 2-6 Remedial Action on Each Lamp Status (Continued)
CARD NAME
PN-SC03-A/ RUN lamp is not
PN-SC03-B flashing
(CSH/ICH)
DOPE 0-7 lamp is
not on
PN-2COTD (COT) LF lamp is on
[For Australia/
Others]
PN-4COTE (COT) LF lamp is on
[For Australia]
PN-6COTJ (COT) LF lamp is on
[For Australia]
PN-8COTT (COT) LF lamp is on
[For Australia]
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LAMP STATUS
Abnormal operation
of CSH card
D-Channel link is
not connected
between CSH and
CSI
Transmission line
fault
Transmission line
fault
Transmission line
fault
Transmission line
fault
FAULT
CONTENT
1
Confirm the programming data: CM05
Y=0.
2
After confirmation of CM05, reset the
system (Push the SW1 of MP).
3
Check to see if the SENSE switch is set
as per the AP Number (04-15, 20-31)
assigned by CM05 Y=0.
4
Reset the MB switch.
(Down→Up→Down)
5
If the fault cannot be cleared, replace
the card.
1
Confirm the programming data: CM06
YY=10
2
Confirm if the corresponding CSI card
is removed.
3
If the fault cannot be cleared, replace
the card.
1
Search for a line fault by CMB0 Y=1 or
CMF5 Y=0.
2
Check to see if the trunk line is faulty.
1
Search for a line fault by CMB0 Y=1 or
CMF5 Y=0.
2
Check to see if the trunk line is faulty.
1
Search for a line fault by CMB0 Y=1 or
CMF5 Y=0.
2
Check to see if the trunk line is faulty.
1
Search for a line fault by CMB0 Y=1 or
CMF5 Y=0.
2
Check to see if the trunk line is faulty.
REMEDIAL ACTION
2
NEAX2000 IVS Maintenance Manual
ND-70926 (E), Issue 3.0