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InStallatIon anD oPeratIon manual
25-15049-G
October 2021 www.eaton.com
3. About the xDetect Fire Panel System
timer t1/t2 (option not required by BS en54-2)
This mode is set on at access level 3 and is a commonly used by
Eastern European Countries.
In the event of a Fire the timer T1 can be set from 1 to 3 mins where the alarm will
be displayed on the panel and no output activation, if during this time the alarm is
acknowledged then timer T2 can be set from 1-10 mins where the alarm can be
investigated and alarm reset.
However if timer T1 & T2 time out during alarm activation, the outputs
will be activated.
timer t1/t2 with Call point override (option not required by BS en54-2)
This is similar to the above except a call point alarm will activate the output instantly.
3.3 Ancillary Functions
relays/auto-dialers and auxiliary equipment
A wide variety of relays and other equipment can be connected to the system, but
you should note the following constraints:
•
The panel provides monitored outputs to drive fire and fault relays mounted in
external equipment. External relays should be suppressed. If a non-suppressed
relay is used then a diode can be connected to suppress any reverse EMF on the
release of the relay which might cause the panel to malfunction
•
A 24V DC output is provided at the panel to make it easy to connect ancillary
equipment. Although the panel can supply a continuous quiescent load of up to
30 mA, BS 5839-1 precludes this practice and any ancillary equipment you
connect should only consume power in the alarm or fault mode to meet the
requirement of BS 5839-1.