Chapter 4: Installation; Electromagnetic Compatibility (Emc); Mounting Procedure For The Pcx System; Resistors - Pyronix PCX-256 Installation Manual

P C X 2 5 6 I N S T A L L A T I O N M A N U A L
This chapter describes the recommended procedure for installing PCX systems
4 . 1 E l e c t r o m a g n e t i c C o m p a t i b i l i t y ( E M C )
The PCX system has been designed to meet or exceed all relevant EMC requirements. This alone
does not guarantee that no problems will be experienced, especially in relation to older equipment
not designed to the same standards, or to equipment for which the same provisions of the EMC
Directive do not apply.
To maintain full EMC performance for the system, it is essential that the following points be
followed:
All other equipment used must carry the CE mark for electromagnetic compatibility.
Do not locate the PCX system, or any other component, close to equipment switching high
frequencies, or using radio frequencies in its operation.
Avoid using mains supplies contaminated by interference generated by switching, arcing, etc.
The system must be connected to a good, clean earth. The earth connection of housing lids is
a mandatory safety requirement.
The correct cable type should be used for each application as specified.
Cables should be routed to avoid the possibility of interference being picked up from other
nearby cabling or equipment. Be alert to the possibility of other cables being installed after the
alarm system has been commissioned.
For further information refer to BSIA "EMC Guidelines for Alarm Installers".
4 . 2 M o u n t i n g P r o c e d u r e f o r t h e P C X s y s t e m
The following steps illustrate basic mounting procedure for the PCX metal case.
Step 1 – Remove the case lid from the PCX panel and check all parts and components are in
place.
Step 2 – Decide where the PCX panel will be situated. The PCX panel may be housed in the loft or
different rooms in the premises. A discrete and concealed place is advisable, as only the PCX
keypads need to be seen.
Step 3 – Secure the PCX panel to a sturdy and stable surface, using the mounting screws
provided. First mark the wall where the panel is to be situated (using the mounting holes), drill
holes in the wall, and fasten the panel base to the wall using the screws provided.
Step 4 – Before the panel base is completely secured to the wall feed cables for keypads / AC
power supply / and accessories through the cable entry holes as illustrated.
4 . 3 R e s i s t o r s
The resistor values are recognised as follows:
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C H A P T E R 4 : I N S T A L L A T I O N
2k2 resistor = Red / Red / Red
4k7 resistor = Yellow / Violet / Red
6k8 resistor = Blue/Grey/Red
12k resistor = Brown / Red / Orange
470Ω resistor = Yellow/Violet/Brown
RINS869-8