LED Fault Indications
Chapter 13: MTS Troubleshooting
LED Fault Indications
Table 13-1
Site Controller LED Fault Indications
Indication
Possible Failure
Corrective Action
All LEDs: OFF
Power Supply switch is
OFF or power supply is
damaged
- Check if power supply switch is ON
- Verify power to the Site Controller cabling
- Check LEDs on PS (power supply)
- Replace PS (power supply)
Active LED: Amber, BTS
Alarm LED: RED
Application started
after Booting, or failed
activation, SC not active
If it is not booting / startup phase:
- Check the Standby Site Controller cabling,
connections to all units
- Check its status of ports and links
Active LED: GREEN
Mode LED: GREEN
BTS Alarm LED: RED
GPS LED: GREEN
WAT (Wide Area Trunking)
with problem Eg. IAC,
- Check status of appropriate frus: atcc, dpm,
psu (see can bus problems)
- Check ports and links state:
port
, in case of
problems check all cabling connections
- Check the status of IAC inputs
status
Active LED: Amber
E1/X.21 relay not energized
Inactive, Site Controller
standby
- 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
CAN Bus problems,
External Alarms,
Canbus problems:
- Check canbus registration table:
can
check_mapping
*
- Verify the registration table with existing
FRU con
fi
guration.
- If units not present exist, check cabling
(caution: all units connected in series). try to
reset or reboot
can reset
*,
can reboot
*
- If didn’t help may try to upgrade units
software or replace faulty unit
- If units not present doesn’t exist – remove
entry from registration table
- If track id not mapped probably registration
table not properly updated
Error detected:
- Get appropriate unit status / alarm to see
details about possible alarm cause
- If cause is in wrong con
fi
guration (wrong
VSWR thresholds or fans not started) modify
it. If alarms are considerably higher than
the default values, investigate a potential
hardware issue with the ATCC.
- If FRU doesn’t work properly, try to upgrade
13-2
6802800U74-N September 2009
Содержание DIMETRA MTS 2
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