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
(Config
%
Group
%
Modem)
Modem Group:
Separate Grouped ( ◄ ► , ENT)
If there is a vertically aligned modulator demodulator pair with the modulator in the top
position, then the Modem selection is allowed. The selection applies to the pair of which
one is currently selected in the device select area.
Once grouped, the modulator demodulator pair can be configured as a single device.
(Config
%
Group
%
Redundancy)
Redundancy: Config Mode
( ◄ ► , ENT)
Selecting “
Config
” allows the user to set redundancy either 1:1, 1:2, 1:3, or none.
Redundancy is a FAST option and needs to be purchased to turn on this feature. Selecting
“
Mode
” allows the unit to do auto or manual switching between prime and back-up device.
(Config
%
Group
%
Redundancy
%
Config)
Config
Redundancy:
None 1:1 1:2 1:3 ( ◄ ► , ENT)
Selecting
None
turns off redundancy.
(Config
%
Group
%
Redundancy
%
Config
%
1:1)
Selecting the
1:1
entry configures 1:1 redundant modem. Modulators are required in the top
two slots, and demodulators in the bottom two. Without the proper hardware and FAST
option enabled, the
! " arrow keys will force the cursor to skip past the unavailable
choice. The backup modem is installed in slot #3 and slot #4. The user can also do 1:1 Tx or
1:1 Rx. For ungrouped scenario, the backup card is always installed in slot #4.
(Config
%
Group
%
Redundancy
%
Config
%
1:2)
For 1:2 case, the backup is always installed in slot #4. This is only applicable for
ungrouped scenario (no modem), that means, 1:2 Tx or 1:2 Rx.
(Config
%
Group
%
Redundancy
%
Config
%
1:3)
For 1:3 case, the backup is always installed in slot #4. This is only applicable for
ungrouped scenario (no modem), that means, 1:3 Tx or 1:3 Rx.
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