Ericsson MINI-LINK E - Receiver Alarms

MINI-LINKEandEMicro
Tabl e 8 Receiver alarms
Alarm Description
Rx AFC The frequency of the received signal is outside the range of the Automatic
Frequency Control in the RAU receiver.
Rx Frequency The receiver frequency loop is unlocked.
DMOD LOS
(MMU)
Receiving direction, failure on the IF signal from the RAU t o the
MMU.
Rx IF Input Failure on the receiver IF signal from the RAU to the MMU.
DMOD
FAIL
(MMU
)
Receiving direction, internal failure in the MMU or the received R F
signal.
Radio Frame The r eceiver failed to recognize the frame of the received composite
bit stream.
Radio ID The received traffic comes from a radio with an ID not matching the
far-end ID as set in t he Hop setup. This alarm can only be enabled if the
ID Check is activated in Hop setup.
BE
R
Th
e Bit Error Rate (BER) for the received signal has exceeded the BE R
al
ar m threshold. The BER alarm threshold is set in the Hop setup. (BER
10
–3
,10
–4
,10
–5
or 10
–6
)
Dmod Clock The inter nal data rate of the MMU does not correspond to the received
data rate. This will cause bit slip in the traffic bit stream.
Hitless Phase Failure when synchronizing the received traffic in the two MMUs. (1+1
configurations only.)
A
IS Received
A
IS is detected on the received traffic signal. (This alarm does not affect
the severity of the terminal.)
Frame E2:1 Receiving direction, MUX frame lock error. (4x2 Mbit/s in 1+0
configurations only).
System Line Fault
E2:1
Internal 8 Mbit/s Dmod signal in the MM U is lost (4x2 Mbit/s in 1+0
configurations only).
DMUX LOS
(SMU)
Receiving direction, failure on the traffic signal from the MMU to
the SMU.
System Line Fault Traffic signal failure to the MUX in receiving direction.
DMUX FAIL
(SMU)
Receiving direction, internal failure in the SMU.
System Line Fault Traffic signal failure to the MUX in receiving direction (SMU 16x2).
Frame Receiving direction MUX frame lock error.
AIS Received AIS is detected on the received traffi c signal. (This alarm does not affect
the severity of the terminal)
98 AE/LZT 110 2012 R8C 2002-03-04