Motorola Starline SG 2000 - Redundant Receiver Mode; Broadband;Narrowcast Mode; Figure 5-2 Redundant Receiver; Figure 5-3 Broadband;Narrowcast

5-2 Operation
SG 2000 Installation and Operation Manual
Redundant Receiver Mode
Operation in the redundant mode requires the installation of two optical receivers, one in position A
and the other in position B. An SG2-ABJ/P jumper board must be plugged into the lid motherboard.
Figure 3-1 illustrates the location of this jumper board.
The SG2-LIDB distributes an RF signal from receiver A or B to the RF chassis as illustrated in
Figure 5-2:
Figure 5-2
Redundant receiver
SG2-ABJ/
P
RF chassis
Relay
JXP
JXP
JXP
JXP
A
Optical
receiver C
Optical
receiver B
Optical
receiver A
Broadband/Narrowcast Mode
For broadband/narrowcast operation, the broadcast optical receiver must be installed in position C
and the narrowcast receiver in position A. If redundancy is required for the narrowcast channel,
install the backup receiver in position B. An SG2-FBS split-band combiner board must also be
plugged into the lid motherboard as illustrated in Figure 3-1.
The SG2-LIDB distributes a broadband signal from receiver C to the RF chassis. It also distributes a
narrowcast signal from receiver A or B to the RF chassis as illustrated in Figure 5-3:
Figure 5-3
Broadband/narrowcast
SG2-FBS
RF chassis
JXP
JXP
HPF
JXP
A
Optical
receiver C
Optical
receiver B
Optical
receiver A
Primary
Secondary
Relay