General
All cables entering the panel must be via the cable entries provided or the aperture in the rear face.
All cables must be tested for earth fault before connecting to the panel. Do not use a High Voltage
Tester (Megger) on any cable after connection to any equipment including the panel.
The wiring of each zone, interface control or alarm line should be in a 2 core cable.
The total cable resistance for each zone must not exceed 85ohm.
Any voltage drop on alarm line cables will affect the sound level of alarm devices and should be kept
to a minimum.
The Cable used for alarm devices must be of a type suitable for protection against fire for at least 30
minutes. The Extra Low voltage unscreened cables must be segregated from the mains cables.
Please refer to BS 5839 part 1 1988 for more details.
For zones and alarms the end of line resistor must be fitted to the end of the circuit. No 'spurs' shall
be used.
If a zone is not to be used the end of line resistor should be fitted in the corresponding zone terminal
block between '+' and '-'.
A cable screen termination for each panel interface is provided. The cable screen of any zone,
interface control or alarm line should be connected directly to the corresponding terminal marked 'E'.
Additional Notes On Installation For Electromagnetic Compatibility (EMC)
When used as intended this product complies with EMC Directive (89/336/EEC) and the UK EMC
regulations 1992 (SI 2372/1992) by meeting the limits set by the standards EN61000-3-2 1994,
EN50081-1 1992 and EN50130-4 1996. The following installation guidelines must be followed:
1. External cables must be connected using the cable entries or knockouts provided.
2. When routing external cables inside the product they must be
a) kept as short as possible.
b) routed close to the metal back box.
c) kept as far as possible from the electronics.
Any modifications other than those in the main installation leaflet, or any other use of the product may
cause interference & is the responsibility of the user, who should ensure compliance with the EMC &
low Voltage directives.
PAGE 8
INSTALLATION INSTRUCTIONS
FAULT RELAY
REM SIG RELAY
254mm
249
Battery
Mains cable entry
Battery
connections
Printed circuit
board (PCB)
MAR424 Auxiliary
relay (PCB)
Cable entries and
blanking plugs
Mains cable entry
Mounting holes
Mounting hole
Safety isolating
Transformer
Mains terminal
block and fuse
(2A BS 1362)