NEC UNIVERGE NEAX 2000 IPS, Maintenance Manual

Page: 206 / 262

CHAPTER 2 TROUBLESHOOTING
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NWA-008847-001 Rev.3.0
a6ch2001.fm
Remedial Action on Each Lamp Status
Continued on next page
CARD NAME
LAMP
STATUS
FAULT
CONTENT
REMEDIAL ACTION
PN-SC00
(CCH) RUN lamp is not
flashing Abnormal opera-
tion of CCH card Confirm the programming data:
CM05 Y=0.
Check to see if the SENS switch is
set as per the AP Number (04-15,
20-31) assigned by CM05 Y=0.
Reset the MB switch.
(Down Up Down)
If the fault cannot be cleared,
replace the card.
LC lamp is not on CCH link connec-
tion failure
Check the status of the local-office side
line or the remote-office side line.
PN-SC01
(DCH) RUN lamp is not
flashing Abnormal opera-
tion of DCH card Confirm the programming data:
CM05 Y=0.
Check to see if the SENS switch is
set as per the AP Number (04-15,
20-31) assigned by CM05 Y=0.
Reset the MB switch.
(Down Up Down)
If the fault cannot be cleared,
replace the card.
LC lamp is not on DCH D-channel
link connection
failure
Check the status of the local-office side
line or the public network side line.
1
2
3
4
1
2
3
4
FAULT DIAGNOSIS AND TROUBLESHOOTING