3
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
SIMPLEX TIME RECORDER CO.
4190-9011
MASTER FIBER OPTIC
AUDIO MODEM
P/N 618-019
INSTALLATION INSTRUCTIONS:
574-795 REV _
Figure 1. Front View of Fiber Optic Audio Repeater
Continued on next page
Specifications
Specifications
Terminal #
Voltage
Terminal 1
+24 VDC
Terminal 2
0 V
Table 1. Power Connections
Table 2. Audio Connector Pin-Out
Terminal #
Connection
Terminal 1
Audio OUT*
Terminal 2
Audio OUT*
Terminal 3
Ground
Terminal 4
Audio IN**
Terminal 5
Audio IN**
Terminal 6
Ground
Table 3. Fault Detection Relay Pin-Out
Terminal #
Loop
Terminal 1
Channel A
Terminal 2
Channel A
Terminal 3
Channel B
Terminal 4
Channel B
Note:
A loss of carrier (optical signal) to
either the “A” or “B” port causes
the contact to open for that port.
These contacts are used to
annunciate trouble.
*
Used with Slave
**
Used with Master
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