5
Refer to Figure 2 below to complete fiber optic connections on the repeater.
Duplex multimode
fiber optic cable
Duplex multimode
fiber optic cable
Duplex multimode
fiber optic cable
To next Slave
unit or Master
if end of loop
B
REC
A
XMIT
Duplex multimode
fiber optic cable
Channel B Relay
}
Channel A Relay
}
Ground
Audio Out
Audio Out
+
-
Channel B Relay
}
Channel A Relay
}
Ground
Audio In
Audio In
+
-
Loop from
last Slave
A
REC
B
XMIT
FIBER
XTMR
CHNL A
CHNL B
FIBER
REC
FIBER
XTMR
FIBER
REC
0V - 2
+V - 1
4
3
2
1
GND - 6
5
4
3
2
1
CARRIER (ON=OK)
POWER
CARRIER (ON=OK)
POWER
AUDIO IN
(2V P-P MAX)
NOT USED
CHNL B
CHNL A
SUPERVISION
CONTACTS
CLOSED=OK
4190-9011
MASTER FIBER OPTIC
AUDIO MODEM
P/N 618-019
INSTALLATION INSTRUCTIONS:
574-795 REV _
FIBER
XTMR
CHNL A
CHNL B
FIBER
REC
FIBER
XTMR
FIBER
REC
0V - 2
+V - 1
4
3
2
1
6
5
4
GND - 3
2
1
CARRIER (ON=OK)
POWER
CARRIER (ON=OK)
POWER
AUDIO OUT
(2V P-P MAX)
NOT USED
CHNL B
CHNL A
SUPERVISION
CONTACTS
CLOSED=OK
4190-9012
SLAVE FIBER OPTIC
AUDIO MODEM
P/N 618-020
INSTALLATION INSTRUCTIONS:
574-795 REV _
Channel B Relay
}
Channel A Relay
}
Ground
Audio Out
Audio Out
+
-
FIBER
XTMR
CHNL A
CHNL B
FIBER
REC
FIBER
XTMR
FIBER
REC
0V - 2
+V - 1
4
3
2
1
6
5
4
GND - 3
2
1
CARRIER (ON=OK)
POWER
CARRIER (ON=OK)
POWER
AUDIO OUT
(2V P-P MAX)
NOT USED
CHNL B
CHNL A
SUPERVISION
CONTACTS
CLOSED=OK
4190-9012
SLAVE FIBER OPTIC
AUDIO MODEM
P/N 618-020
INSTALLATION INSTRUCTIONS:
574-795 REV _
Figure 2. Fiber Optic Wiring
Fiber Optic Connection
Fiber Optic Connection
IMPORTANT:
You must maintain a minimum two-inch bend radius
on the fiber optic cables. A bend radius less than
two inches may permanently damage the optical
fibers. (See Figure 3.)
Solid Lines indicate the
minimum requirements for a
Class B fiber configuration.
Broken Lines (in addition to
Solid Lines) indicate the
minimum requirements for a
Class A fiber configuration.
Notes:
See the 4100 Field Wiring
Diagrams (841-731 or 841-995)
for more information.
Figure 2 not shown to scale.
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