15
9. 9V TERMINAL AND REMOTE TEST & HUSH
WARNING: THIS TERMINAL IS NOT ISOLATED FROM THE MAINS SUPPLY.
This first terminal (Yellow) has a 9Vdc positive output and can be used for the following
applications: As an output to operate smoke alarm as an early warning indicator system.
The 9V terminal in this smoke alarm is intended for use with a security/fire alarm
panel where a signal from that panel can be used to activate a single Smoke Alarm or
interconnected Smoke Alarms to alert residents/occupants that an alarm has been
activated elsewhere and there may be cause to evacuate the area. The diagram below
shows the 9V terminal and the Signal terminal, marked SW, connected to the N/O
(normally open) contacts of a suitable relay, the coil of which when energized from an
extra-low voltage signal from an alarm panel, closes the contacts thereby activating the
Smoke Alarm(s). This can be an Early Warning Indicator System.
Note: The presence of an audible sound from the smoke alarm and the absence of a
flashing RED LED in the smoke alarm(s), means the smoke alarm(s) have been
activated externally. It is an Early Warning Indicator.
However, check also for the presence of fire or smoke in the vicinity of your
dwellings. If there is fire, follow actions in Section 15.
It is essential that the relay and associated base must be of a type providing effective
isolation between the coil and contacts (having an isolation voltage [Dielectric
Strength] of 4kV and creep/clearance distances of no less than 8mm between the coil
and contacts).
We recommend using an OMRON Relay Type G2R-2-SN and Base
Type 17X5W which meet the necessary isolation requirements.
9.1
9V TERMINAL
1398-7210-01_v1.qxd:_ 2013.5.15 5:25 PM Page 15
