09/2016 Page 13 5IN2371 C
Connecting Auxiliary (12 V DC) Devices
Use the Auxiliary Power AUX (+) and COM (–) terminals to power, for example,
PIRs, glass-break detectors (4-wire types), smoke detectors, audio switches,
photoelectric systems, or any device that requires a 12 V DC power supply.
NOTES:
Maximum current draw for each bus (“AUX RED” terminals) is 750 mA.
Maximum combined current draw from the two AUX terminals plus UO1 and
UO2 is 750mA.
Total current draw from the panel terminal blocks should not exceed 2000mA, in
addition to above limitations.
If, at the main panel terminal block, any Bus or AUX outputs are overloaded and
are shut down, you must disconnect all loads from those Bus or AUX outputs for a
period of at least 10 seconds before you reconnect any load to those outputs.
To increase your power ability when employing multiple auxiliary devices, you
can use an optional Power Supply expansion module(s).
For 4-wire smoke detectors, see the ProSYS Plus Installation and Programming
Manual and the packaged installation instructions.
To prevent a possible drop in voltage due to current requirements and distances
involved, make sure to use the appropriate wire gauge (refer to the table of gauge
sizes for AUX devices in the ProSYS Plus Installation and Programming Manual).
Connecting the Bell / Loudspeaker
The Bell & LS (loudspeaker) terminals provide power to the internal bell (siren).
NOTE: A maximum of 750 mA may be drawn from this output.
To connect the internal bell (siren):
1. With main panel power removed, connect the internal bell with the correct
polarity (for installation instructions see the ProSYS Plus Installation and
Programming Manual and the packaged installation instructions).
2. At SW1 on the main panel PCB, be sure to position the BELL DIP switch
correctly accordingly (regarding bypassing or not bypassing the bell tamper).
See Setting Main Panel DIP Switches and Jumpers, page 11.
IMPORTANT: To avoid bell loop trouble, if no connections are made to an
internal bell, on the terminal block install a provided 2.2K resistor to the
BELL/LS (+ and – ) screw terminals, unless you are fitting an extension speaker
with DIP switch 1 in the OFF position.
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