Ericsson MINI-LINK E, Техническое описание

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MINI-LINK E and E Micro
6.1.4.1 Alarms for MINI-LINK E
Table 7 Transmitter alarms
Alarm Description
MUX LOS (SMU) Transmitting direction, input traffic failure to the SMU.
Input EX:Y Input traffic failure on a 2 or 8 Mbit/s traffic signal in the transmitting
direction.
MUX FAIL (SMU) Transmitting direction, input traffic failure to the 8/34 (E23) MUX
from a 2/8 (E12) MUX in the SMU.
Input EX:Y Input traffic failure on an 8 Mbit/s traffic signal from a 2/8 MUX (E12) to
the 8/34 MUX (E23) in the transmitting direction (SMU 16x2).
MOD LOS (MMU) Transmitting direction, input traffic failure to the MMU.
Input (BB1/BB2) Input traffic failure to MMU modulator.
Input EX:Y Input traffic failure in MMU 2/8 MUX (E12) (SMU 8x2).
MOD FAIL (MMU) Transmitting direction, internal failure in the MMU.
Input BB1 Input traffic failure to MMU modulator. (4x2 Mbit/s only).
Mod Index The modulation index of the MMU, controlled by the far-end MMU, is
out of the allowed range.
TX LOS (RAU)
Transmitting direction, failure on the input IF signal from the MMU
to the RAU.
Tx IF Input Failure on the received IF signal from the MMU to the RAU.
TX FAIL (RAU) Transmitting direction, internal failure in the RAU.
RF Output Level A major degradation of transmitter RF output level. Note: This alarm is
only enabled if the transmitter is on.
RAU2 28-E only: An MMU with wrong traffic capacity is used.
Tx Frequency The transmitter frequency loop is unlocked. The fault turns off the
transmitter.
Table 8 Receiver alarms
Alarm Description
RX LOS (RAU)
Receiving direction, low input power to the RAU.
RF Input Level The received RF input signal level has dropped below the threshold for
the receiver.
AGC Threshold The RF input level has dropped below the AGC threshold value. The AGC
threshold is set in Hop setup and is mainly used in 1+1 configurations
for Rx switching at fading.
RX FAIL (RAU) Receiving direction, internal failure in the RAU.
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AE/LZT 110 2012 R8C 2002-03-04