Users Manual Part 2

Indication Possible Failure Corrective Action
Mode LED: Green E1/X.21 relay not
energized Inactive,
Site Controller stand-
by
• Check site link failure: .sitelink, status
sc
• Check cabling, replace cabling if needed
Active LED: RED Failed Site Controller
or power up
• Replace FRU
GPS LED: RED
No GPS signal, no
connection to remote
GPS, or non-
synchronized mode
• Check if GPS antenna is connected
• Check status sri
BTS Alarm: Amber or
Red
BTS alarm, External
alarm, VSWR alarm,
CAN Bus problems
BTS alarm:
• Check status of BTS: status bts, status
bts -l Verify status of components (Nor-
mal)
EAS alarm:
• Check status of alarm system: status eas
-p9 alarm when external alarms are activa-
ted.
VSWR alarm:
• Check status of BR status br, brlock if
BRs are locked and dekeyed VSWR was
probably too high, unlock BRs with: brlock
-clearall
CAN bus problems:
• Check CAN bus registration table: can
check_mapping*
• Verify the registration table with existing
FRU configuration
• If units not present exist, check cabling (cau-
tion: all units connected in series). try to re-
set or reboot can reset*, can reboot*
• If did not help may try to upgrade units soft-
ware or replace faulty unit
• If units not present doesn’t exist – remove
entry from registration table
• If TrackID is not mapped, probably registra-
tion table not properly updated
Error detected:
• Get appropriate unit status / alarm to see de-
tails about possible alarm cause
• If cause is in wrong configuration (wrong
VSWR thresholds or fans not started) modify
it. If alarms are considerably higher than the
default values, investigate a potential hard-
ware issue with the ATCC
6802800U74-AP
Chapter 13: MTS Troubleshooting
374