Motorola Starline SG 2000 Installation And Operation Manual page 72

5 - 8 O p e r a t i o n
If you are using a single DS-SG2-DRT-2X/A transmitter, it must be installed in the optical
transmitter A position. A JXP-5A (5 dB) pad must be installed in the pad facility at the input of both
the A and B transmitter locations. With this transmitter, the SG2 is configured with the return path
module/split (SG2-RPM/S). Return signals from two of the four node ports are fed to one RF input
of the transmitter while the remaining two return signals are fed to the second RF input as illustrated
in Figure 5-11:
F i g u r e 5- 11
D S - S G 2- D R T - 2 X / A s p l i t r et u rn
TP
Optional
transmitter
B
TP
Using a DS-SG2-DRT-2X/A transmitter in conjunction with an optional second transmitter (B)
provides return redundancy as illustrated in Figure 5-12. Installing a redundant B transmitter requires
you to remove the JXPs that are installed before the input to the transmitter and replace it with a
special adapter in order to route the signals properly.
F i g u r e 5- 12
D S - S G 2- D R T - 2 X / A r e d u n d ant r et u rn
TP
Optional
transmitter
A
Transmitter
B
TP
S G 2 0 0 0 I n s t a l l a t i o n a n d O p e r a t i o n M a n u a l
LID
BASE
SG2-RPM/S
SG2-RPLPF
JXP LP filter
JXP LP filter
LID
BASE
SG2-RPM/S
SG2-RPLPF
LP filter
LP filter
Status
monitor
TP
H
Ingress L
JXP
TP
Status
monitor
TP
H
Ingress L
JXP
TP