Specifications

Castle Care-Tech Ltd. Engineering
Page 10 - 2 Chapter 10
B: MOUNTING THE
EQUIPMENT
Mount the equipment carefully
in suitable locations, noting
particularly the following
points:
(i) Zone Expander Units
(ZEMs or TMZs) should be
located to suit the wiring to
appropriate detectors.
More than two units should
NOT be mounted together.
(ii) Where Zone Expanders,
Output Modules or Access
Controllers are mounted on
power supplies, all
necessary connections are
automatically made to
draw all current from the
power supply, and to use
the system diagnostic
capabilities to control the
power supply.
(iii) Intelligent Power
Supplies cannot be used in
isolation from the Euro-
MERiDIAN system plug-on
pcbs.
(iv) Keypads and Set/Unset
Tag Readers should NOT be
mounted on, or near a
metal surface, or within a
metre of each other, or tag
response could be affected.
(v) Where provided, metal
housings must have the
earth strap connected to
the lid to meet electrical
safety regulations.
(vi) When used in iD mode,
Zone Expanders should NOT
be located more than 10
metres from the power
supply it is powered from.
C: TAMPER SWITCHES
To suit different housing
requirements, tamper switches
may be either
Printed Circuit Board
mounted, using an arm
or spring to bear on the
lid, or screw on the
backplate to bear on
the switch
Or Secured to the housing,
and connected to the
PCB by a loom plugged
onto a suitable header.
Some products have the facility
to be used with either type.
Tamper switches should be
adjusted so that they are
correctly closed when the
housings are secured.
Where a back-tamper facility is
fitted, a
No. 6 round-head
screw should be inserted as a
locating hanger, but not
screwed home. Instead it
should be left to provide a
surface for the switch linkage
to bear onto, thus: