Installation manual

12V Auxiliary Supply Outputs (12V and S12V)
12V and GND supply 12V to devices which require power e.g.
movement detectors. The S12V terminal provides 12V to external
devices which require resetting when activated, e.g. smoke detectors.
The S12V supply is switched off for 5 seconds whenever the system is
disarmed. Total continuous current from these and the Output 12V
terminals should not exceed 1 Amp. These terminals are current limited
by resettable fuses.
Arming Response
There is now an Arming response (Location 1850) which allows shock
detectors to be reset during the exiting procedure instead of at the
point that the system is Disarmed (which can reset the detector before
the culprit has been identified). You can feed such detectors via a relay
which is normally closed and pulse the output feeding the relay using a
pulsed output responses (eg. 130,20,8 = pulse OP8 for 1 second),via
the Arming Response in Location 1850.
False Alarm on Disarming
This may be caused by connecting PIRs or Keypads to the S12V output
instead of the 12V terminals. S12V and 12V share the same terminal
block. S12V is meant for detectors which need to be reset on
disarming, and is switched off for 5 seconds when the system is
disarmed. PIRs programmed as 24 hour zones which have their supply
connected to S12V will activate when disarmed. Also Keypads which are
powered from S12V will report ”Communication Failure”.
(( Do not feed PIRs set as 24 hour zones from the S12V supply.
(( For UL installations, the total current from Alarm output
terminals, outputs and 12v terminals should not exceed 500
mA
Comfort Installation Manual
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