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APPENDIX D: FTR-120 FREE TOPOLOGY REPEATER
When installing an FTR-120 network repeater on a Com-
pass-based RMS network, avoid using the twisted wire ter-
minator (provided in the RMS peripheral kit) on the network
output of the loudspeakers connected to the repeater unless
the repeater terminator is removed. Double terminating any
network output will decrease performance.
FTR-120 Wiring
The FTR-120 is wired using five position terminal blocks.
The wiring pin-out for the FTR-120 module is shown in
Table 5.
Table 5: FTR-120 Wiring Pin-Out
Pin Description
Function
PWR A+
Power A+ positive supply connection
PWR A-
Power A– negative supply connection
N/C
No connection (reserved)
PWR B+
Power B+ positive supply connection
PWR B–
Power B- negative supply connection
NET1
Network channel 1 connection
NET1
Network channel 1 connection
EGND
Earth ground
N/C
No connection (reserved)
NET2
Network channel 2 connection
NET2
Network channel 2 connection
NET3
Network channel 3 connection
NET3
Network channel 3 connection
EGND
Earth ground
N/C
No connection (reserved)
NET4
Network channel 4 connection
NET4
Network channel 4 connection
Power A+ and Power A– are the power supply inputs. Con-
nect the positive lead of the power supply to the terminal
block Power A+ and the negative lead of the power supply
to the terminal block Power A–.
If a redundant supply is required, connect it to Power B+
and Power B–. Connect the positive lead of the redundant
power supply to the terminal block Power B+ and the
negative lead of the power supply to the terminal block
Power B–.
68
Network 1-4 are the network connections. Network 1 is the
channel 1 network connection. Connect the first network
twisted pair to the terminal block NET1 positions. The wiring
is polarity-independent so it does not matter which wire in
the pair is connected to which position on the terminal
block. Connect the rest of the network twisted pairs to the
other channels. Leave any unused channels unconnected.
NOTE:
Terminals labeled EGND should be
connected to an earth ground.
The FTR-120 Universal Power Supply
The universal power supply included with the repeater kit
allows for FTR-120 operation around the world. The male
IEC input allows for any mains lead adapter to be used with
the supply.
Table 6: FTR-120 Power Supply Specifications
Input Voltage
100 V AC to 240 V AC
Output Voltage
+12 V DC to +24 V DC +/–10% @ 100 mA
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