NEC NEAX 2000 IVS2 Maintenance Manual page 116

CHAPTER 2 TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
Table 2-6 Remedial Action on Each Lamp Status (Continued)
CARD NAME
PN-IPTB L1 lamp is not on
(IPT)
LYR lamp is not on
Page 108
LAMP STATUS
Communication
error
Network feature
failure
FAULT
CONTENT
1
Confirm whether the LYR lamp is on.
2
Confirm the programming data: CMA7
3
Check to see if the LAN cable is
correctly connected.
4
Reset the MB switch.
(Down→Up→Down)
5
Send ping to the IP address of the IPT
from a computer on the LAN, and
confirm whether the reply is given.
When there is no reply, go to
6
For Point-to-Point connection only,
confirm the following:
a. Confirm the opposite side condition as
1
b. Send ping to the IP address of the
opposite IPT from a computer on the
LAN, and confirm whether the reply is
given.
When there is no replay, the LAN is
abnormal condition.
7
If the fault cannot be cleared, replace
the card.
1
Confirm the programming data: CMA7
2
Reset the MB switch.
(Down→Up→Down)
3
If the fault cannot be cleared, replace
the card.
REMEDIAL ACTION
5
to above.
2
NEAX2000 IVS Maintenance Manual
ND-70926 (E), Issue 3.0
7
.