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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...