18
InsTALLATIon And oPerATIon MAnuAL
25-16330-B December 2019 www.eaton.com
Compatible Equipment
Zone Monitor units
This interface is designed to enable
a zone of compatible conventional
detectors and callpoints to be
connected into the addressable loop,
it is compatible with up to 20 Eaton
conventional detectors connected via
the EFXN520 range of detector bases
and compatible detectors . Please refer
to local standards for details of the
maximum allowable area to be covered
by a single spur / zone . The interface
fixes to a standard, deep, double gang
back box and can be either surface
or semi recess mounted . When semi
recessed only the front section protrudes giving a maximum 29mm depth .
An additional intrinsically safe variant is available . The detection zone has been
programmed to accept a Zener barrier and a zone of intrinsically safe detectors .
End of line for this zone now becomes 6K8 and the diode in the detector base must
be removed .
Shop Unit Interface
This interface accepts a zone of conventional detectors plus an unlimited number of
callpoints which can be connected to the same input as the detectors or a separate
callpoint input if required . There is a facility to connect a local 24v power supply
which is monitored for fault .
In addition it has the facility to connect
two circuits of conventional polarised
sounders, which are monitored by
means of an end of line resistor and
powered in alarm conditions from the
external power supply .
The sounder circuits can be
programmed to operate in pulsed,
continuous or time delayed mode .
Please refer to local standards for
details of the maximum allowable area
to be covered by a single spur / zone .
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The external supply must be connected even if the sounder
circuits are not used .