NEC NEAX 2000 IPS Maintenance Manual page 196

CARD NAME
PN-DTA RUN lamp is not
(CCT/DTI/PRT) flashing
NOTE
LC lamp is not on ISDN Primary
LPB lamp is not
on
PCM lamp is on
MFRM lamp is on Multi-Frame
FRM lamp is on
Remedial Action on Each Lamp Status
LAMP FAULT
STATUS CONTENT
Abnormal opera-
tion of CCT/DTI/
PRT card
Rate D-channel
data link connec-
tion failure
No LPB signals
arrive from the
distant office
No PCM signals
arrive from the
distant office
Alignment signals
from the distant
office cannot be
received
Frame Alignment
signals from the
distant office can
not be received
CHAPTER 2 TROUBLESHOOTING
FAULT DIAGNOSIS AND TROUBLESHOOTING
REMEDIAL ACTION
Confirm the programming data:
1
CM05 Y=0/Y=1, CM07 Y=1.
Check to see if the SENSE switch is
2
set as per the AP Number (04-15,
20-31) assigned by CM05 Y=0.
Reset the MB switch.
3
(Down→Up→Down)
If the fault cannot be cleared,
4
replace the card.
Check the local office line or public net-
work line.
Check the local office line or public net-
work line.
Check to see if the line is correctly
1
connected to the CCT/DTI/PRT
card.
Plug and unplug the CCT/DTI/PRT
2
card.
Repeat this two or three times.
Check the receive line and external
1
equipment.
Replace the CCT/DTI/PRT card.
2
Check the receive line and external
1
equipment.
Replace the remote CCT/DTI/PRT
2
card.
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Continued on next page
NWA-008847-001 Rev.3.0
a6ch2001.fm
JULY/01/2006