NEC NEAX 2000 IPS Maintenance Manual page 190

CARD NAME
PN-DAIA-A RUN lamp is not
(DAIA) flashing
LINK lamp is not
on
RED lamp is on
RMT lamp is on
Remedial Action on Each Lamp Status
LAMP FAULT
STATUS CONTENT
Abnormal opera-
tion of DAIA card
Layer 2 link con-
nection failure
between DAIA
and DAIB
PCM signal loss or
Frame Alignment
signal loss
Remote alarm
CHAPTER 2 TROUBLESHOOTING
FAULT DIAGNOSIS AND TROUBLESHOOTING
REMEDIAL ACTION
Reset the MB switch.
1
(Down→Up→Down)
Check the setting of SENSE switch
2
and SW1-4.
SENSE
Switch: 0
SENSE
Switch: 1
SENSE
Switch: 2
SENSE
Switch: 3
SENSE
Switch: 4-F
If the fault cannot be cleared,
3
replace the card.
Check to see if the cable between
1
DAIA and DAIB is correctly con-
nected.
Reset the MB switch.
2
(Down→Up→Down)
Check to see if the cable between DAIA
and DAIB is correctly connected.
Check to see if the cable between DAIA
and DAIB (sending side) is correctly
connected.
– 180 –
SW1-4: ON SW1-4: OFF
Not used FP No.16
FP No.01 FP No.17
FP No.02 FP No.18
FP No.03 FP No.19
Not used
Continued on next page
NWA-008847-001 Rev.3.0
a6ch2001.fm