25
FX6000 InstAllAtIon And oPerAtIon MAnuAl
25-14683-C December 2019 www.eaton.com
Compatible Equipment
Zone monitor units
CZMU352
CZMU352 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 CDBB300 bases .
Please refer to local standards e .g .BS5839 Pt1:2017 for details of the maximum
allowable area to be covered by a single spur / zone . CZMU352 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 .
CZMu352-Is
CZMU352-IS Similar to the above but the detection zone has been programmed to
accept a Zener barrier and a zone of 10 intrinsically safe detectors . End of line for this
zone now becomes 6K8 and the diode in the detector base must be removed . The
maximum number of addressable CZMUs per loop is 20 .
shop unit interface
MSU840
MSU840 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 . It also has a 24V 1A rated relay output, and a facility to
connect a power supply, which can then be 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
