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
