CDM-Qx Satellite Modem

 

 

Revision 5

Front Panel Operation

 

 

MN/CDMQx.IOM

Two modems can share a modem:

 

 

 

 

 

 

MD <MD>

(right

hand display area)

 

 

(right

hand display area)

 

The selected modem is the modulator demodulator pair on the right side of the chassis (when viewed from the back). When modem is in CnC™ mode, the brackets (<>) will turn into bold characters.

5.2.2Redundancy

Modules, (modulators and demodulators) can be upgraded to operate as redundant units. If enabled the module can back up a like kind module located anywhere in the chassis. If a modulator and demodulator have redundancy enabled and they are grouped as a modem, the pair can back up a modem. Note: The interface selected for the modules does not have to match the interface type used on the prime modules.

Three redundancy modes are possible with a modem. Back-up devices are notated with a B suffix while the designated prime modules (non-modem grouped) are noted with P suffix. In a non-modem configuration, the back-up device must be installed in slot #4. If a backup device has failed, the B suffix and the F suffix will alternately display.

1:1 redundant modems look similar to the two-modem example. The modems have independent monitor functions, but configuring the prime modem will configure the back up modem.

MD <MDB> (right hand display area) (right hand display area)

In this example, the backup modem is selected.

1:2 and 1:3 modulators or demodulators look similar to the basic display. A backup modulator or demodulator will back up all compatible modulators or demodulators in the chassis designated as primes.

The Online LED together with the selection bracket (<>) is used to indicate which device is online.

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Mocomtech CDM-QX operation manual Redundancy, Md Md