CHAPTER 2 TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
NEAX2000 IVS
2
Maintenance Manual
ND-70926 (E), Issue 3.0
Page 101
PN-DAIC
(DAIC)
RUN lamp is not
flashing
Abnormal operation
of DAIC card
Reset the MB switch.
(Down
→
Up
→
Down)
If the fault cannot be cleared, replace
the card.
LINK lamp is not on
Layer 2 link
connection failure
between DAIA and
DAIB
Check to see if the cable between DAIA
and DAIB is correctly connected.
Reset the MB switch.
(Down
→
Up
→
Down)
Check to see if the cable between DAIC
cards is correctly connected.
RED lamp is on
PCM signal loss or
Frame Alignment
signal loss
Check to see if the cable between DAIC
cards is correctly connected.
RMT lamp is on
Remote alarm
Check to see if the cable between DAIC
cards (sending side) is correctly connected.
PN-DAID
(DAID)
RUN lamp is not
flashing
Abnormal operation
of DAID card
Reset the MB switch.
(Down
→
Up
→
Down)
Check the setting of SENSE switch.
1: FP No. 01
2: FP No. 02
3: FP No. 03
0, 4-F: Not used
If the fault cannot be cleared, replace
the card.
LINK lamp is not on
Layer 2 link
connection failure
between DAID and
DAIE
Check to see if the cable between DAID
and DAIE is correctly connected.
Reset the MB switch.
(Down
→
Up
→
Down)
RMT lamp is on
Remote alarm
Check to see if the cable between DAID
and DAIE (sending side) is correctly
connected.
PWR lamp is on
PCM signal loss
Check to see if the cable between DAID
and DAIE is correctly connected.
Table 2-6 Remedial Action on Each Lamp Status (Continued)
CARD NAME
LAMP STATUS
FAULT
CONTENT
REMEDIAL ACTION
1
2
1
2
3
1
2
3
1
2
Summary of Contents for NEAX 2000IVS2
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