Comtech EF Data CDM-Qx, Installation And Operation Manual

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CDM-Qx Satellite Modem Revision 6
Front Panel Operation MN/CDMQx.IOM
5.7.2.1 (Monitor
%
Alarms) ALARMS
The modem uses a system of Fault Prioritization. In each category of fault, only the
highest priority fault is displayed. For instance, if the demodulator is unlocked, it is
irrelevant if there are other receive faults present. If the demodulator then locks, but
there is a fault of a lower priority present, this will then be displayed. This also holds
true for the faults reported via the remote control. This system cuts down drastically
on unwanted and irrelevant fault reporting. A comprehensive list of faults is shown
at the end of this section.
IMPORTANT
Live Alarms: Transmit
Receive Unit ODU ( ◄ ► , ENT)
Select
Transmit
,
Receive
or
Unit
using the ! " arrow keys, then press
ENTER
.
Depending on the selection, one of the following menus will be shown:
(Monitor
%
Alarms
%
Unit) – UNIT ALARMS
Unit Fault: -12 Volt PSU
is under voltage (ENT)
This screen indicates if there are any Unit Faults. If not, it displays ‘
None
’. Pressing
ENTER
takes the user back to the previous menu.
(Monitor
%
Alarms
%
Receive) – RECEIVE ALARMS
Rx Traffic: AGC Alarm -
Reduce Input level (ENT)
This screen indicates if there are any Receive Traffic Faults. If not, it displays ‘
None
’.
Pressing
ENTER
takes the user back to the previous menu.
(Monitor
%
Alarms
%
Transmit) - TRANSMIT ALARMS
Tx Traffic: No Tx Clock
From Terrestrial (ENT)
This screen indicates if there are any Transmit Traffic Faults. If not, it displays ‘
None
’.
Pressing
ENTER
takes the user back to the previous menu.
(Monitor
%
Alarms
%
ODU) – OUTDOOR UNIT ALARMS
This screen indicates if there are any ODU Alarms. If not, it displays ‘
None
’. Pressing
ENTER
takes the user back to the previous menu.
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