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Figure 13 illustrates the segmented return plug-in board.
Figure 13
Segmented return board
Figure 14 illustrates the signal flow through the segmented return board:
Figure 14
Segmented return board – signal flow
To set up the segmented return option:
1
Confirm that dual SG4-DRT-2X return transmitters are installed in lid optics slots 3 and 4
and 5 and 6.
2
Confirm that a segmented return board is installed in the return configuration locations 2
and 3 as illustrated in Figure 11.
3
Connect an RF cable from connector TX1 on the segmented return board in configuration
location 2 to CH B of the SG4-DRT-2X in lid optics slots 3 and 4.
4
Connect an RF cable from connector TX2 on the segmented return board in configuration
location 2 to CH A of the SG4-DRT-2X in lid optics slots 3 and 4.
5
Connect an RF cable from connector TX1 on the segmented return board in configuration
location 3 to CH B of the SG4-DRT-2X in lid optics slots 5 and 6.
6
Connect an RF cable from connector TX2 on the segmented return board in configuration
location 3 to CH A of the SG4-DRT-2X in lid optics slots 5 and 6.
The RF cable should be approximately eight inches long and have red boots on the connector
signifying the return path.
7
If necessary, connect the appropriate return RF cables from the SG4-RF modules to each
segmented return board.
8
Ensure that the PIC cable is properly connected to the lid and power distribution board in
the housing base.
IN2
J7
J4
R5
R3
R8
R10
R7
R4
J5
J6
SM
J3
TX2
TX2
Pad
IN2
-0.5dB
TX1
IN1
Pad
SM
Loss = 0.9 dB
STARLINE
IN1
C1
R2
C2
T1
C3
R1
TX1
SG4-DRT-2X Installation Sheet
13
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