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
Select
Active
or
Masked
using the
◄ ►
arrow keys, then press
ENTER
.
If the user selects
Active
, then a Receive Traffic fault will be generated whenever the
demodulator sees that the composite input level being applied will cause compression in
the IF stages, and hence degrade the performance of the demodulator.
Similarly, the user can mask an Eb/No, Receive AIS or Buffer alarm.
If the user selects
Masked
, no alarm will be generated.
Selecting
Reference
displays the following submenu:
Reference Alarm:
Active Masked ( ◄ ► ENT)
Select
Active
or
Masked
using the
◄ ►
arrow keys, then press
ENTER
.
If the user selects
Active
, then a unit fault will be generated whenever the unit sees:
1. External Reference is selected
2. There is no signal activity at the external reference port
If the user selects
Masked
, no alarm will be generated.
Selecting
BUC
displays the following submenu:
BUC Alarm:
Active Masked (
◄ ► ENT)
Select
Active
or
Masked
using the
◄ ►
arrow keys, then press
ENTER
.
Selecting
LNB
displays the following submenu:
LNB Alarm:
Active Masked (
◄ ► ENT)
Select
Active
or
Masked
using the ◄ ► arrow keys, then press
ENTER
.
5.7.1.9 (Config
%
ODU) – OUTDOOR UNIT (for L-Band Unit Only)
ODU (Outdoor Unit):
BUC LNB ( ◄ ► ENT)
The
ODU
(Outdoor Unit) menu permits the user to choose between controlling and
monitoring either a
BUC
(Block Upconverter) or an
LNB
(Low-noise Block
downconverter). Select
BUC
or
LNB
using the
◄ ►
arrow keys, then press
ENTER
.
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