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NEC Neax 2000 Ivs2 Maintenance Manual

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    							CHAPTER 2  TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
NEAX2000 IVS2 Maintenance Manual    
ND-70926 (E), Issue 1.0   Page 83
Lamp Indication on Cards
This section describes the method for fault diagnosis and troubleshooting when you detect the
fault occurrence by lamp indication on circuit cards.
Table 2-6 shows the contents of the fault and the remedial action on each lamp status.
Table 2-6  Remedial Action on Each Lamp Status 
CARD NAME LAMP STATUSFAU LT
CONTENTREMEDIAL ACTION
PN-CP14 (MP) RUN lamp is not 
flashingAbnormal 
operation of MP 
cardCheck the setting of SW2.
SW2-1 : ON (in case of A-law)
: OFF (in case of µ-law)
SW2-4 : OFF
Check to see if the SW3 switch 
is set to “0” (On Line).
If the fault cannot be cleared, 
replace the card.
PN-CP15 (FP) RUN lamp is not 
flashingAbnormal 
operation of FP 
cardConfirm the mounting slot of the 
FP card. (PIM2, 4, 6: Slot 12/
PIM0: Slot 11)
Check the setting of SENSE.
Location of FP
      SENSE
PIM0 0
PIM2 1
PIM4 2
PIM6 3
Reset the MB switch.
(Down→
Up→
Down)
Check to see if the BUS cable 
between each PIM is properly 
connected.
If the fault cannot be cleared, 
replace the card.
1
2
3
1
2
3
4
5
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    							 NEAX2000 IVS2 Maintenance ManualPage 84  ND-70926 (E), Issue 1.0
CHAPTER 2  TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
PN-PW00
(EXTPWR)RUN lamp is not 
on-48V power is not 
being suppliedConfirm the lamp indication of 
PZ-PW121 all lamps.
If the fault cannot be cleared, 
replace the PN-PW00 card.
If PZ-PW121 lamp has abnormal 
condition, replace the PZ-PW121 
card.
PZ-PW121
(AC/DC PWR)ON lamp is not 
onOperation power 
is not being 
suppliedConfirm the connection of PZ-
PW121 and PZ-PW122.
Turn PZ-PW122 SW switch on.
Confirm the lamp indication of 
PZ-PW121 all lamps.
If the fault cannot be cleared, 
replace the PZ-PW122 card.
If PZ-PW121 lamp has abnormal 
condition, replace the PZ-PW121 
card. PZ-PW122
(DC/DC PWR)
PN-AP00-A
 (DBM)RUN lamp is not 
flashingAbnormal 
operation of DBM 
cardConfirm the programming data: 
CM05.
Check to see if the SENSE switch 
is set as per the AP Number (04-
15) assigned by CM05.
Reset the MB switch. 
(Down
→Up
→Down)
Check the setting of SW1.
SW1-1: ON
SW1-2: ON
SW1-3: ON
SW1-4: OFF
If the fault cannot be cleared, 
replace the card.
Table 2-6  Remedial Action on Each Lamp Status (Continued)
CARD NAME LAMP STATUSFAU LT
CONTENTREMEDIAL ACTION
1
2
3
1
2
3
4
5
1
2
3
4
5
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    							CHAPTER 2  TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
NEAX2000 IVS2 Maintenance Manual    
ND-70926 (E), Issue 1.0   Page 85
PN-AP00-B
 (AP00)RUN lamp is not 
flashingAbnormal 
operation of 
AP00 cardConfirm the programming data: 
CM05.
Check to see if the SENSE switch 
is set as per the AP Number (04-
15, 20-31) assigned by CM05.
Reset the MB switch. 
(Down→
Up→
Down)
Check the setting of SW1.
SW1-1: ON
SW1-2: ON
SW1-3: ON
If the fault cannot be cleared, 
replace the card.
PN-AP01 (AP01) RUN lamp is not 
flashingAbnormal 
operation of 
AP01 cardConfirm the programming data: 
CM05.
Check to see if the SENSE switch 
is set as per the AP Number (04-
15) assigned by CM05.
Reset the MB switch.
(Down→
Up→
Down)
If the fault cannot be cleared, 
replace the card.
PN-BRTA (BRT) RUN lamp is not 
flashingAbnormal 
operation of BRT 
cardConfirm the programming data: 
CM05, CM07 Y=02.
Check to see if the SENS switch 
is set as per the AP Number (04-
15) assigned by CM05.
Reset the MB switch.
(Down→
Up→
Down)
If the fault cannot be cleared, 
replace the card.
ALM lamp is on Transmission line 
faultConfirm circuit line status.
Confirm PSTN line status.
Table 2-6  Remedial Action on Each Lamp Status (Continued)
CARD NAME LAMP STATUSFAU LT
CONTENTREMEDIAL ACTION
1
2
3
4
5
1
2
3
4
1
2
3
4
1
2
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    							 NEAX2000 IVS2 Maintenance ManualPage 86  ND-70926 (E), Issue 1.0
CHAPTER 2  TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
PN-2BRTC
(BRT)RUN lamp is not 
flashingAbnormal 
operation of BRT 
cardConfirm the programming data: 
CM05.
Check to see if the SENSE switch 
is set as per the AP Number (04-
15, 20-31) assigned by CM05, 
CM07 Y=2.
Reset the MB switch.
(Down
→Up
→Down)
If the fault cannot be cleared, 
replace the card.
ALM0 lamp is on No.0 circuit 
transmission line 
faultConfirm No.0 circuit line status.
Confirm PSTN line status.
ALM1 lamp is on No.1 circuit 
transmission line 
faultConfirm No.1 circuit line status.
Confirm PSTN line status.
PN-CC01
(ETHER)RUN lamp is not 
flashingAbnormal 
operation of 
ETHER cardReplace the ETHER card.
Table 2-6  Remedial Action on Each Lamp Status (Continued)
CARD NAME LAMP STATUSFAU LT
CONTENTREMEDIAL ACTION
1
2
3
4
1
2
1
2
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    							CHAPTER 2  TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
NEAX2000 IVS2 Maintenance Manual    
ND-70926 (E), Issue 1.0   Page 87
PN-24DTA-C
(DTI)RUN lamp is not 
flashingAbnormal 
operation of DTI 
cardConfirm the programming data: 
CM05, CM07 Y=01.
Check to see if the SENS switch 
is set as per the AP Number (04-
15, 20-31) assigned by CM05.
Reset the MB switch.
(Down→
Up→
Down)
If the fault cannot be cleared, 
replace the card.
CRC lamp is on Bit Error Rate 
exceeds the 
predetermined 
valueCheck the receive line and exter-
nal equipment.
Replace the remote DTI card.
PCM lamp is on No PCM signals 
arrive from the 
distant officeCheck to see if the DTI cable is 
correctly connected.
Plug and unplug the DTI card.
Repeat this step two or three 
times.
FRM lamp is on Frame Alignment 
signals from the 
distant office can-
not be receivedCheck the receive line and exter-
nal equipment.
Replace the remote DTI card.
RMT lamp is on Frame Alignment 
signals cannot be 
sent to the 
remote PBXCheck the transmission line and 
external equipment.
Replace the DTI card.
AIS lamp is on Remote PBX is in 
the loop-back testCheck the switch settings of the 
remote DTI card.
Table 2-6  Remedial Action on Each Lamp Status (Continued)
CARD NAME LAMP STATUSFAU LT
CONTENTREMEDIAL ACTION
1
2
3
4
1
2
1
2
1
2
1
2
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    							 NEAX2000 IVS2 Maintenance ManualPage 88  ND-70926 (E), Issue 1.0
CHAPTER 2  TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
PN-30DTC-A
(DTI)RUN lamp is not 
flashingAbnormal 
operation of DTI 
cardConfirm the programming data: 
CM05, CM07 Y=01.
Check to see if the SENS switch 
is set as per the AP Number (04-
15, 20-31) assigned by CM05.
Reset the MB switch.
(Down
→Up
→Down)
If the fault cannot be cleared, 
replace the card.
PCM lamp is on No PCM signals 
arrive from the 
distant officeCheck to see if the DTI cable is 
correctly connected.
Plug and unplug the DTI card.
Repeat this step two or three 
times.
FRM lamp is on Frame Alignment 
signals from the 
distant office can-
not be receivedCheck the receive line and exter-
nal equipment.
Replace the DTI card.
MFRM lamp is 
onMulti Frame 
Alignment signals 
from the distant 
office cannot be 
receivedCheck the receive line and exter-
nal equipment.
Replace the DTI card.
RMT lamp is on Frame Alignment 
signals cannot be 
sent to the 
remote PBXCheck the transmission line and 
external equipment.
Replace the DTI card.
MRMT lamp is 
onFrame Alignment 
signals from the 
distant office can-
not be receivedConfirm the switch setting on the 
DTI board indicating an alarm.
Replace the DTI card not indicat-
ing an alarm, with a spare.
AIS lamp is on Remote PBX is in 
the loop-back testCheck the switch settings of the 
remote DTI card.
Table 2-6  Remedial Action on Each Lamp Status (Continued)
CARD NAME LAMP STATUSFAU LT
CONTENTREMEDIAL ACTION
1
2
3
4
1
2
1
2
1
2
1
2
1
2
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    							CHAPTER 2  TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
NEAX2000 IVS2 Maintenance Manual    
ND-70926 (E), Issue 1.0   Page 89
PN-24PRT
(PRT)RUN lamp is not 
flashingAbnormal 
operation of PRT 
cardConfirm the programming data: 
CM05, CM07 Y=01.
Check to see if the SENS switch 
is set as per the AP Number (04-
15, 20-31) assigned by CM05.
Reset the MB switch.
(Down→
Up→
Down)
If the fault cannot be cleared, 
replace the card.
LC lamp is not 
onISDN primary 
rate D-channel 
data link 
connection failureCheck the status of the local-office 
side line or the public network side 
line.
CRC lamp is on Bit Error Rate 
exceeds the 
predetermined 
valueCheck the receive line and exter-
nal equipment.
Replace the remote PRT card.
PCM lamp is on No PCM signals 
arrive from the 
distant officeCheck to see if the PRT cable is 
correctly connected.
Plug and unplug the PRT card.
Repeat this step two or three 
times.
FRM lamp is on Frame Alignment 
signals from the 
distant office can-
not be receivedCheck the receive line and exter-
nal equipment.
Replace the remote PRT card.
RMT lamp is on Frame Alignment 
signals cannot be 
sent to the 
remote PBXCheck the transmission line and 
external equipment.
Replace the PRT card.
AIS lamp is on Remote PBX is in 
the loop-back testCheck the switch settings of the 
remote PRT card.
Table 2-6  Remedial Action on Each Lamp Status (Continued)
CARD NAME LAMP STATUSFAU LT
CONTENTREMEDIAL ACTION
1
2
3
4
1
2
1
2
1
2
1
2
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    							 NEAX2000 IVS2 Maintenance ManualPage 90  ND-70926 (E), Issue 1.0
CHAPTER 2  TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
PN-4RSTB
(MFR)RUN lamp is not 
flashingAbnormal 
operation of MFR 
cardConfirm the programming data: 
CM05.
Check to see if the SENSE switch 
is set as per the AP Number (04-
15, 20-31) assigned by CM05.
Reset the MB switch.
(Down
→Up
→Down)
If the fault cannot be cleared, 
replace the card.
PN-4RSTC
(CIR)RUN lamp is not 
flashingAbnormal 
operation of CIR 
cardConfirm the programming data: 
CM05.
Check to see if the SENSE switch 
is set as per the AP Number (04-
15) assigned by CM05.
Reset the MB switch.
(Down
→Up
→Down)
If the fault cannot be cleared, 
replace the card.
PN-SC00 (CCH) RUN lamp is not 
flashingAbnormal 
operation of CCH 
cardConfirm the programming data: 
CM05.
Check to see if the SENS switch 
is set as per the AP Number (04-
15, 20-31) assigned by CM05.
Reset the MB switch.
(Down
→Up
→Down)
If the fault cannot be cleared, 
replace the card.
LC lamp is not 
onCCH link 
connection failureCheck the status of the local-office 
side line or the remote-office side 
line.
Table 2-6  Remedial Action on Each Lamp Status (Continued)
CARD NAME LAMP STATUSFAU LT
CONTENTREMEDIAL ACTION
1
2
3
4
1
2
3
4
1
2
3
4
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    							CHAPTER 2  TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
NEAX2000 IVS2 Maintenance Manual    
ND-70926 (E), Issue 1.0   Page 91
PN-SC01 (DCH) RUN lamp is not 
flashingAbnormal opera-
tion of DCH cardConfirm the programming data: 
CM05.
Check to see if the SENS switch 
is set as per the AP Number (04-
15, 20-31) assigned by CM05.
Reset the MB switch.
(Down→
Up→
Down)
If the fault cannot be cleared, 
replace the card.
LC lamp is not 
onDCH D-channel 
link connection 
failureCheck the status of the local-office 
side line or the public network side 
line.
PN-SC03
(ICH)RUN lamp is not 
flashingAbnormal opera-
tion of ICH cardConfirm the programming data: 
CM05.
After confirmation of CM05, reset 
the system (Push the SW1 of 
MP).
Check to see if the SENS switch 
is set as per the AP Number (04-
15, 20-31) assigned by CM05. 
Reset the MB switch.
(Down→
Up→
Down)
If the fault cannot be cleared, 
replace the card.
DOPE lamp is 
not onD channel link is 
not connected 
between ICH and 
ILCConfirm the programming data: 
CM06.
Confirm if the corresponding ILC 
card is removed.
If the fault cannot be cleared, 
replace the card.   
Table 2-6  Remedial Action on Each Lamp Status (Continued)
CARD NAME LAMP STATUSFAU LT
CONTENTREMEDIAL ACTION
1
2
3
4
1
2
3
4
5
1
2
3
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    							 NEAX2000 IVS2 Maintenance ManualPage 92  ND-70926 (E), Issue 1.0
CHAPTER 2  TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
PN-SC03-A
(CSH)RUN lamp is not 
flashingAbnormal opera-
tion of CSH cardConfirm the programming data: 
CM05.
After confirmation of CM05, reset 
the system (Push the SW1 of 
MP).
Check to see if the SENS switch 
is set as per the AP Number (04-
15, 20-31) assigned by CM05. 
Reset the MB switch.
(Down
→Up
→Down)
If the fault cannot be cleared, 
replace the card.
DOPE lamp is 
not onD channel link is 
not connected 
between CSH 
and CSIConfirm the programming data: 
CM06 Y=10
Confirm if the corresponding CSI 
card is removed.
If the fault cannot be cleared, 
replace the card.   
PN-2COTD 
(COT)
[For Australia/
Others]LF lamp is on Transmission line 
faultSearch for a line fault by CMB0 
Y=1 or CMF5 Y=0.
Check to see if the trunk line is 
faulty. 
PN-4COTE 
(COT)
[For Australia]LF lamp is on Transmission line 
faultSearch for a line fault by CMB0 
Y=1 or CMF5 Y=0.
Check to see if the trunk line is 
faulty.
PN-6COTJ 
(COT)
[For Australia]LF lamp is on Transmission line 
faultSearch for a line fault by CMB0 
Y=1 or CMF5 Y=0.
Check to see if the trunk line is 
faulty.
PN-8COTT 
(COT)
[For Australia]LF lamp is on Transmission line 
faultSearch for a line fault by CMB0 
Y=1 or CMF5 Y=0.
Check to see if the trunk line is 
faulty.
Table 2-6  Remedial Action on Each Lamp Status (Continued)
CARD NAME LAMP STATUSFAU LT
CONTENTREMEDIAL ACTION
1
2
3
4
5
1
2
3
1
2
1
2
1
2
1
2
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