Owner`s manual
2.1 Wiring Guidelines
Do not run high voltage (115 V) power lines and communication lines in the same conduit. These
should be in separate conduits at least six (6) inches apart. Be sure that all phone line wiring is
twisted and completely isolated from ground.
Use only the supplied 16.5 VAC (or U.L. listed equivalent) to power the entry system. Do not power
any other devices (electric strikes, magnetic locks, lights, etc.) from this transformer. Do not
run 16 VAC entry system power lines over 200 feet. It is advisable to keep these wires as short as
possible. Use 18 AWG wire for wire runs up to 100 feet, and 16 AWG wire for wire runs up to
200 feet. Install a low voltage surge suppresser (DoorKing p/n 1878-010 or equivalent) to help
protect the entry system from power surges.
Use Belden 9418 (4-conductor), Belden 9931 (6-conductor) or equivalent for all weigand device
wiring. Do not use twisted pair type wire with weigand format. Float the shield at the weigand device.
Do not connect the shield to the weigand device common. Weigand wire runs are 500-feet
maximum.
A 12 volt .8 amp hour gel-cell battery (DoorKing p/n 1801-008) can be installed in the system to
provide stand-by power in the event of a power outage. Two batteries are required, one for the
system power and one for the auxiliary terminal power.
Proper grounding of this system is a requirement. The use of surge suppressers can significantly
reduce the chance of component failure because of static charges or surges. To be effective, ground
connections should be made with a minimum 12 AWG, 600 volt insulated wire to a ground point
within 10 feet of the telephone entry system. The ground point must be at an electrical panel, a
metallic cold water pipe that runs in the earth, or a stainless steel grounding rod driven at least ten
(10) feet into the soil.
Be sure that you use proper wire that has an insulation rated for an underground environment. All
wires should be placed in conduits. Proper pre-planning can greatly ease the installation and wiring
of this system. Always check with the local building code to determine the type of wire required in
your municipality.
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