Comtech EF Data CDM-Qx Installation And Operation Manual page 96

CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier®
Front Panel Operation
CONFIG: Group
Config Redundancy
None
Select None, 1:1, 1:2, or 1:3 using the ◄ ► arrow keys, then press
CONFIG: Group
For 1:1 redundancy, modulators are required in the top two slots – Slot#1 and Slot #3,
and demodulators in the bottom two slots – Slot#2 and Slot#4.
The backup modem is installed in Slot#3 and Slot #4. For ungrouped scenario, the
backup card is always installed in Slot #4.
The user can also configure 1:1 Tx or 1:1 Rx.
Without the proper hardware and FAST option enabled, the
the cursor to skip past the unavailable choice.
CONFIG: Group
For 1:2 redundancy, the backup is always installed in Slot#4. This is only applicable for
ungrouped scenario (no modem), i.e., 1:2 Tx or 1:2 Rx.
CONFIG: Group
For 1:3 redundancy, the backup is always installed in Slot#4. This is only applicable for
ungrouped scenario (no modem), i.e., 1:3 Tx or 1:3 Rx.
CONFIG: Group
Redundancy Mode:
Manual
Select Manual or Auto using the ◄ ► arrow keys, then press
Manual is the default selection/operation. If Manual is selected, when the prime is faulted,
the backup will not take over; the user will alsol have the option to do forced switching
When Auto is selected, the backup will automatically take over once the designated prime is
faulted, and vice-versa.
CONFIG: Group
Redundancy Manual Mode:
Forced-Backup = Slot#1 (▲▼,ENT)
If redundancy is configured (e.g., 1:1) and Manual is selected, the force-backup menu
appears. This submenu allows the user to do forced switching between the backup and
the designated primary device. Select the desired slot using thee
press ENTER when done.
Redundancy
1:1 1:2 1:3 (◄ ►,ENT)
Redundancy
Redundancy
Redundancy
Redundancy
Auto (◄ ►,ENT)
Redundancy
Config
Config
Config
Config
Mode
ENTER
Mode
5–30
Revision 7
MN/CDMQX.IOM
.
ENTER
1:1
arrow keys will force
1:2
1:3
.
Manual
arrow keys, then