Constellation™ November 2003
11-24 Field-Replaceable Units
Modem
This section is applicable to the High Capacity Modem also.
Figure 11-17:Modem, front view
Removing the Modem
• In a MHSB configuration, start with step 1.
• In a nonprotected configuration, start with step 2.
In a nonprotected configuration, removing the
Modem is a service-affecting procedure.
1. Use the Keypad command to lock traffic on to the Modem that is not
being removed. This procedure causes a minor alarm.
CONTROL > LOCK/IF LPBK > LOCK MOD/TX, SET
CONTROL > LOCK/IF LPBK > LOCK DMOD/RX, SET
Extractor (2)
FAULT (red LED)
ON LINE (green LED)
IF OUT (to Transmitter Assembly)
IF IN (from Receiver Assembly)
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