NEC NEAX 2000 IVS2 Maintenance Manual page 102

CHAPTER 2 TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
Table 2-6 Remedial Action on Each Lamp Status (Continued)
CARD NAME
PN-BRTA RUN lamp is not
(BRT) flashing
ALM lamp is on
PN-2BRTC (BRT) RUN lamp is not
flashing
ALM1 lamp is on
ALM0 lamp is on
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LAMP STATUS
Abnormal operation
of BRT card
Transmission line
fault
Abnormal operation
of BRT card
No. 1 circuit
transmission line
fault
No.0 circuit
transmission line
fault
FAULT
CONTENT
1
Confirm the programming data: CM05,
CM07 YY=02.
2
Check to see if the SENS switch is set
as per the AP Number (04-15)
assigned by CM05.
3
Reset the MB switch.
(Down→Up→Down)
4
If the fault cannot be cleared, replace
the card.
1
Confirm circuit line status.
2
Confirm PSTN line status.
1
Confirm the programming data: CM05.
2
Check to see if the SENS switch is set
as per the AP Number (04-15, 20-31)
assigned by CM05, CM07 Y=2.
3
Reset the MB switch.
(Down→Up→Down)
4
If the fault cannot be cleared, replace
the card.
1
Confirm No. 1 circuit line status.
2
Confirm PSTN line status.
1
Confirm No.0 circuit line status.
2
Confirm PSTN line status.
REMEDIAL ACTION
2
NEAX2000 IVS Maintenance Manual
ND-70926 (E), Issue 3.0