Motorola SG4-DRT-2X - Manual (Page 9)

STARLINE 9
Split Redundant Return
In the split redundant return configuration, each pair of RF returns is applied to a separate 2X
redundant return configuration board. In a typical installation, the RF module in Ports 1 and 3
are connected to the 2X redundant return board in configuration location 2. The RF modules in
Ports 4 and 6 are connected to the 2X redundant return board in configuration location 3. Both
outputs of each 2X redundant board go to the same RF input channel on two different SG4-DRT-
2X transmitters located in lid optics slots 3 and 4, and 5 and 6.
Figure 9 illustrates the split redundant return configuration:
Figure 9
Split redundant return configuration
2X DIGITAL TRANSMITT ER
CH B CH A
-5 dBmV NOMINAL TOTAL POWER
-5 V/mW
ENABLE/FAULT
-5 dBmV NOMINAL TOTAL POWER
J X
P J X
P
A / D A / D
INVISIBLE LASER RADIATION. AVOID EXPOSURE TO BEAM. CLASS 3B LASER PRODUCT.
2X DIGITAL TRANSMITT ER
CH B CH A
-5 dBmV NOMINAL TOTAL POWER
-5 V/mW
ENABLE/FAULT
-5 dBmV NOMINAL TOTAL POWER
J X
P J X
P
A / D A / D
INVISIBLE LASER
RADIATION. AVOID
EXPOSURE TO BEAM. CLASS 3B LASER PRODUCT.
Port 1 Port 6
Split Redundant
board location #2
Split Redundant
board location #3
CH A CH A
CH B CH B
Port 3 Port 4
SG4-DRT-2X Installation Sheet