Aux 24V
The AUX 24V connection is a common DC voltage and special application output.
The output is supervised for short-circuits and ground faults. The output is not supervised for open
circuit conditions. Terminals of the Aux 24V output are labeled positive ( + ) and negative ( - ).
Operating Limits
The AUX 24V supply is protected by an electronic, self-resetting fuse rated at 1.1 A.
Devices connected to this output must not draw current in excess of 500 mA. The AUX 24V supply is a
special application output.
CAUTION!
Reference Appendix A, Specifications, Current Loading Limitations for loading details during standby and
alarm conditions.
ALM RES
The ALM RES field terminals include inputs for SIL, ALM. TRBL and RES. These inputs are not authorized
for operation under the UL listing of this product and therefore are
no connection
terminals.
RS485
The RS485 communication bus provides no connection and is reserved for future use.
Do not operate in standby while maintaining a 500 mA load on the AUX 24 V output of this fire
control panel. The fire control panel cannot provide 500 mA of current to the load of the AUX
24 V output during an AC failure condition and maintain continuous standby operation for
twenty-four hours followed by five minutes of alarm.
Total standby-current of the 7 AH batteries must draw less than 225 mA to maintain
continuous standby operation for twenty-four hours followed by five minutes of alarm. Total
standby-current of the 12 AH batteries must draw less than 400 mA to maintain continuous
standby operation for twenty-four hours followed by five minutes of alarm.
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