Alarms
Reference Manual for EL470 IP Satellite Modem
Alarm Label Name Description
25%
50 Kbps <= interface rate < 200
Kbps : [5% - 60%] nominal
12.5%
This alarm is not applicable if the
internal transmit clock (free
running) is
selected.
Synthesiser AlMoSynth The synthesiser alarm indicates
a malfunction of the hardware
which generates the carrier
frequency. The presence of this
alarm suppresses transmit of the
L-band/Rf output (internal L-
band).
Demod lock AlReceiverOk This alarm is asserted when the
receiver is not sychronised.
Demod Tuner Lock AlDmTunerLock Alarm indicates whether the
Tuner Synthesizer is phase
locked.
Demod Physical layer sync AlDmPlSync Alarm indicates Loss of Physical
Layer frame synchronisation.
Demod Baseband frame sync AlDmBbSync A Baseband framing sync alarm
indicates loss of synchronisation
between the baseband framing
and physical layer framing.
Internal M&C module AlMcModule Indicates an alarm internal to the
M&C board.
For detailed information the
alarms of the M&C module
should be consulted.
Internal interface module AlIntfModule Indicates an alarm internal to the
interface function/module. For
detailed information the alarms
of the interface module should
be consulted.
Internal modulator AlModModule Indicates an alarm internal to the
modulator board.
Demodulator module AlDmModule Indicates an alarm internal to the
demodulator board.
For detailed information the
alarms of the M&C module
should be consulted.
Device architecture AlArchitecture The architecture alarm indicates
that the detected device
architecture
(modules/interconnect) does not
match the expected architecture.
Internal communication AlIntComm An internal communication alarm
indicates that there is a
communication error between
different boards in the system.
Input alarm AlInput The input alarm is a combined
alarm indicating a missing or
invalid input signal
to the device.
version 3.1
253
SHAPING THE FUTURE OF SATELLITE COMMUNICATIONS
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