NEC NEAX 2000 IPS Maintenance Manual page 200

CARD NAME
PN-IPTB RUN lamp is not
(IPT) flashing
BUSY lamp is not
on, when even one
line is busy
SUBOPE0-3 lamp
is not on
Remedial Action on Each Lamp Status
LAMP FAULT
STATUS CONTENT
Abnormal opera-
tion of IPT card
Abnormal opera-
tion of IPT card
Abnormal connec-
tion between IPT
and 4VCT
CHAPTER 2 TROUBLESHOOTING
FAULT DIAGNOSIS AND TROUBLESHOOTING
REMEDIAL ACTION
Check whether the MODE switch is
1
set to 0 or 1.
(Standard setting: 0)
Confirm the programming data:
2
CM05 Y=0, CM06.
Reset the system (Push the SW1 of
3
MP).
Check to see if the SENSE and SW1
4
switch is set as per the AP Number
(04-15, 20-31) assigned by CM05
Y=0.
If the fault cannot be cleared,
5
replace the card.
Confirm the programming data:
1
CM30.
Reset the MB switch.
2
(Down Up Down)
If the fault cannot be cleared,
3
replace the card.
Check to see if the cable between
1
IPT and 4VCT is correctly con-
nected.
Reset the MB switch.
2
(Down Up Down)
If the fault cannot be cleared;
Replace the cable between IPT and
3
4VCT.
Replace the 4VCT card.
4
Replace the IPT card.
5
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Continued on next page
NWA-008847-001 Rev.3.0
a6ch2001.fm