8
Interconnecting Alarms
With interconnected Alarms, when one Alarm detects fire all will
sound. However, only Alarms detecting fire will have a flashing
red LED.
Heat Alarms must always be interconnected to Smoke Alarms to
ensure early warning.
WARNING: Do not hardwire interconnect mains powered
Alarms with low voltage or battery powered Ei Electronics
Alarms/devices or any other type of Alarm produced by another
manufacturer. Doing so may damage the Alarms and could result
in a shock or fire hazard.
To interconnect Alarms connect all the IC terminals together as
shown in Figure 6.
The interconnect wire (minimum 0.75mm
2
cable) must be treated
as if it was Live. It should be insulated and sheathed.
A maximum of 250 metres of wire can be used (maximum
resistance between detectors 50 Ohms).
Alarms should be interconnected only within the confines of a
single family living unit.
The Alarm can also be RF interconnected to other RF Alarms and
devices by installing an Ei168RC RF base.
Test Alarms
Green LED
Power Indicator
Figure 5
Figure 6
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