Honeywell SILENT KNIGHT SK-5208, Installation And Operation Manual

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Model SK-5208 Fire Control/Communicator Installation and Operation Manual
3-2 P/N 151204
3.3 Wiring Specifications
To avoid induced noise (transfer of electrical energy from one wire to another), keep input
wiring isolated from high current output and power wiring. Induced noise can interfere with
telephone communication or even cause false alarms. Avoid pulling one multiconductor cable
for the entire panel. Instead, separate the wiring as follows:
DO NOT pull wires from different groups through the same conduit. If you must run them
together, do so for as short a distance as possible or use shielded cable. Connect the shield to
earth ground at the panel only.
For the same reasons, wiring within the cabinet should be routed around the perimeter of the
cabinet. It should not cross the printed circuit board where it could induce noise into the
sensitive microelectronics or pick up unwanted RF noise from the high speed circuits.
High frequency noise, such as that produced by the inductive reactance of a speaker or bell,
can also be reduced by running the wire through ferrite shield beads or by wrapping it around
1/4" spacing must be maintained
between each of these circuit types;
as well as between power limited
and non-power limited circuits.
Input/Output Type Wiring
High Voltage: AC power
Low Voltage: Annunciator, zone circuit wiring, and notification devices
Audio: Speaker
Telco Separated
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