Harris Corporation Constellation™
Field-Replaceable Units 12-13
FIELD-
REPLACEABLE
UNITS
option of the Multiplier-Filter must be installed
onto the board.
See
page 12-10
for “
“Removing and Installing the Multiplier-Filter”
”.
1. Check the part number of the Transmitter Assembly to ensure that the
correct unit is being installed.
2. Ensure that the
• TX switch on the Transmitter Assembly faceplate is in the OFF position.
• PWR switch on the Power Supply is in the OFF position.
3. Carefully slide the Transmitter Assembly into the designated slot in the
shelf until the unit plugs into the backplane.
4. Use the 2 thumbscrews to fasten the unit to the shelf.
5. On the faceplate, reconnect the cables onto the SMA connector.
• IF IN (from the Modem)
• RF OUT (to the ACU)
6. Use a torque wrench to tighten the connector (8 to 9 in-lb).
7. On the Power Supply, press the PWR switch to the ON position to turn on
the power supply.
On the Transmitter Assembly, press the TX switch to the ON position to turn
on the power amplifier.
Transmitter Turn-on Procedure
Consult your system administrator for Keypad access to
the controls of this procedure.
Table 12-1: Required test equipment
Test Equipment Model
Universal Frequency Counter with 10-digit
accuracy
Agilent 53131A or equivalent
Power meter with power sensor Agilent E4418B and 8485A
or equivalent
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