Repair and Replacement 11-3
Troubleshooting the BPX Switch
BXM Port LED is red or orange
(BXM configured for trunk
mode).
Trunk is in local or remote alarm. Use NMS dsptrk screen to confirm trouble.
BNI Port LED is red or orange. Trunk is in local or remote alarm. Use NMS dsptrk screen to confirm trouble. Use short BNC
loopback cable at LM-BNI connectors for local test of trunk.
Loop trunk at DSX-3 crossconnect to check cable.
No BXM card or port LED on. No trunks or lines, as applicable
on card are upped. Card has not
necessarily failed.
Up at least one of the trunks or lines, as applicable, associated
with the card (Trunks if BXM configured for trunk
mode, lines if BXM configured for port mode).
No BME card or port LED on. No lines are upped. Card has not
necessarily failed.
Up at least one of lines, as applicable, associated with the
card.
No BNI card or port LED on. No trunks on card are upped.
Card not necessarily failed.
Up at least one of the trunks associated with the card.
BXM Port LED is red or orange
(BXM configured for port
mode)
Line is in local or remote alarm. Use NMS dsplns screen to confirm trouble.
BME Port LED is red or orange Line is in local or remote alarm. Use NMS dsplns screen to confirm trouble.
ASI Port LED is red or orange. Line is in local or remote alarm. Use NMS dsplns screen to confirm trouble.
No ASI card or port LED on. No lines on card are upped. Card
not necessarily failed.
Up at least one of the two lines associated with the card.
BCC fail LED flashing Downloading system software or
configuration data.
Wait for download to complete.
BCC LAN LED flashing Normal for node connected to
NMS terminal over Ethernet. If it
does not flash, there may be
problems with node to NMS data
path.
Check that the cabling to the NMS is firmly connected to the
LAN port on the LM-BCC back card. An alternate
connection is to the control port.
No BCC card LED on. Preparing to download new
software (momentary condition).
Wait for download to begin.
Command issued to run a
software rev. that was not
available in the network.
Check that proper s/w rev. is available on another node or on
NMS.
Table 11-1 Troubleshooting the BPX Switch (Continued)
Symptom Probable Cause Remedy
