Table of Contents
Advertisement
Chapter 2: Planning the Installation
Choosing the installation locations
When planning the installation, consider the following recommendations concerning the
locations of where to install the control unit and other devices.
Note: Also refer to the device installation instructions for any further guidance.
General requirements
Do not locate any device:
Near to any source of electromagnetic or radio interference.
Within 1 metre of high-voltage cables, metal pipes, computers, photocopiers, or
other electrical or electronic equipment.
In a location where maximum radio range or cable distances will be exceeded.
In a metal enclosure or close to large metal structures, if the device uses radio
communications.
Control unit
The control unit must be located:
Within the protected area.
Upright on a wall or other flat surface (to discourage tamper attempts from the rear).
Out of sight of potential intruders.
It is recommended that the control unit is located clear of coats, doors or other regularly
moving surfaces. This is to prevent unnecessary power consumption from the built-in
proximity reader during a power failure.
Carry out a radio survey using the DET-RSURV01 Survey Tool to confirm that there will be
sufficient signal strength between the planned location of the control unit and other radio
devices.
External sirens
These must be located out of reach of intruders and vandals, but must be easily visible for
maximum deterrence.
Power availability
Important note: The control unit does not provide a 12Vdc output in the event of a mains
failure. For this reason, powered detectors (such as PIRs) must be powered by an
alternative backed-up power source. If you are powering other devices (such as outputs)
from the control unit, you should consider whether alternative backed-up power sources
are also needed for these devices.
When fully charged, a single backup battery is capable of powering the system (excluding
outputs and powered detectors) in the event of a mains failure for at least 12 hours,
Page 8
Advertisement
Table of Contents
