CHAPTER 2 TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
NEAX2000 IVS
2
Maintenance Manual
ND-70926 (E), Issue 3.0
Page 99
PN-DAIA-A
(DAIA)
RUN lamp is not
flashing
Abnormal operation
of DAIA card
Reset the MB switch.
(Down
→
Up
→
Down)
Check the setting of SENSE switch and
SW1-4.
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)
RED lamp is on
PCM signal loss or
Frame Alignment
signal loss
Check to see if the cable between DAIA and
DAIB is correctly connected.
RMT lamp is on
Remote alarm
Check to see if the cable between DAIA and
DAIB (sending side) is correctly connected.
Table 2-6 Remedial Action on Each Lamp Status (Continued)
CARD NAME
LAMP STATUS
FAULT
CONTENT
REMEDIAL ACTION
1
2
SW1-4: ON SW1-4: OFF
SENSE
Switch: 1
FP No.01
FP No. 17
SENSE
Switch: 2
FP No.02
FP No. 18
SENSE
Switch: 3
FP No.03
FP No. 19
SENSE
Switch: 0,4-F
Not used
3
1
2
Summary of Contents for NEAX 2000IVS2
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