81MN024-010
TFAM
Case R2
ALARM CODE
(TSUN
description)
ALARM
DESCRIPTION
ACTIVE LED
SUPERVISION
PRIORITY
LEVEL
ACTION
RECOMMENDED
RELÉ PRIORITY
LEVEL
(subrack)
Antenna DC
loop alarm
ALWAYS OK
DL optical
power fail
1
The optical power
received on the
DL is too low and
can’t no more be
compensated
RED MAJOR
Check the DL fi bre
and the TFLN laser
status
MAJOR
AGC out of
range
1
The optical power
received is under
the allowed
3dB optical loss
but it can be
compensated
NONE WARNING
Clean optical
connectors
MINOR
DL RF alarm
in Band 1
HW failure on the
DL low band RF
section
RED CRITICAL Return the unit MAJOR
DL RF alarm
in Band 2
HW failure on the
DL high band RF
section
RED CRITICAL Return the unit MAJOR
DL RF alarm
in Band 3
(if present)
HW failure on the
DL UMTS band RF
section
RED CRITICAL Return the unit MAJOR
External 1
alarm
Alarm on the
device connected
on dry-contact 1
RED MAJOR
Check the
external device or
alarm connection
MAJOR
External 2
alarm
Alarm on the
device connected
on dry-contact 2
RED MAJOR
Check the
external device or
alarm connection
MAJOR
Power supply
alarm
UPS HW failure or
malfunction.
RF is turned OFF
RED MAJOR
Check the
external PSU.
If it works properly,
return the unit
MAJOR
Internal BUS
alarm
A malfunctioning
on the digital
part involves a
fault in monitoring
functionalities
RED CRITICAL Return the unit MAJOR
Temperature
alarm
Over-temperature
alarm
NONE MINOR
Check ventilation
and environment
MINOR
Table 3.5.2: Description of the alarms of the Case-R and Case R2 Remote Unit,
as they are presented by the LMT application or by the Supervision interface
TFAx Case-R or Case-R2 troubleshooting
Faults can be revealed by LEDs on the Remote Unit (RU) front panel as well as by LMT or
Supervision System (running on the remote supervision unit)
Both LMT and Supervision System provide full information about the device causing the alarm.
As a consequence, troubleshooting procedure can be very immediate when the failure
Note: if then discovery doesn’t start automatically, check through the LMT or the remote
supervision whether it has been disabled (refer to LMT or remote Supervision System manuals
for further information).
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