
Castle Care-Tech Ltd. Engineering
Page 11 - 4 Chapter 11
WIRING
See wiring specifications on page 11-2.
Single- or Double-resistor EoL wiring may be used.
NOTE: Zones are available only at nominated Keypads – see page 4-5
SINGLE RESISTOR WIRING
This is NOT suitable for systems
installed to BS.4737, or to
EN.50131 systems in grades 2
and above.
The 2K2 resistor MUST be
located at the furthest point on
the wiring circuit, or the wiring
security it provides will be lost
Resistor colour code:
2K2 – Red / Red / Red / Gold
NORMALLY OPEN DETECTORS
should be connected in the same
way, with the ‘Normally Open’
attribute selected when
programming the zone.
AVAILABLE ON DELUXE KEYPADS
ONLY - NOT Standard Keypads.
NOTE: Issue 3·1 software (& later) can use
total of 3 detectors with separate 4K7 resistors
per circuit.
Peripheral devices (keypads, ZEMs, etc) must b
fitted with software 1·19 (or later)
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