NEC NEAX 2000 IVS2 Maintenance Manual page 126

CHAPTER 2 TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
Table 2-6 Remedial Action on Each Lamp Status (Continued)
CARD NAME
PN-M10 (M10) CK0 lamp is not on
CK1 lamp is not on
TALM lamp is on
RALM lamp is on
Page 118
LAMP STATUS
Cable connection
failure between
Digital Trunk
Interface and No. 0
circuit of M10
Cable connection
failure between
Digital Trunk
Interface and No. 1
circuit of M10
Optical output line
fault
Optical input line
fault
FAULT
CONTENT
1
Check to see if the cable between
Digital Trunk Interface and M10 is
correctly connected.
2
Check the switch setting of M10.
3
If the fault cannot be cleared, replace
the card.
1
Check to see if the cable between
Digital Trunk Interface and M10 is
correctly connected.
2
Check the switch setting of M10.
3
If the fault cannot be cleared, replace
the card.
1
Check to see if the cable between
Digital Trunk Interface and M10 is
correctly connected.
2
Check the switch setting of M10.
3
If the fault cannot be cleared, replace
the card.
1
Check to see if the optical cable
between the primary side M10 and the
remote
connected.
2
Check the switch setting of primary
side M10 and remote side M10.
3
If the fault cannot be cleared, replace
the card.
REMEDIAL ACTION
side M10 is
2
NEAX2000 IVS Maintenance Manual
ND-70926 (E), Issue 3.0
correctly