– 5 –
Wire:
· Shielded wire is strongly recommended. Use the proper gauge for the distance being run.
·
Wiring between masters must be a multi-conductor cable. If more than one cable is used to connect masters, the "E",
"C", and number terminal wires must be in the same jacketed cable. If necessary, run multiple "E" wires, one in each
cable.
Wiring Method:
·
Run intercom cables at least 50cm (20") away from all AC wiring, fl uorescent lights, dimmer switches, and other
electrical or electronic devices. Intercom wiring can cross AC wires at 90 degrees.
· Sub stations can be homerun to the nearest master station, or daisy-chained. If daisy-chained, include 2 common wires
plus 1 individual wire per station on the run.
· In a SINGLE MASTER SYSTEM ONLY: Subs can be wired with 2 conductors homerun. Jumpers between "E" and "-"
must be attached on all subs and at the master station.
Intercom Locations:
· Do not install intercoms near dimmer or light switches, or other electrical wall devices.
· To prevent feedback, do not place sub stations back-to-back on a common wall.
· Near alarm panels or other electronic equipment that may emit data noise.
· Behind a doorway or any other area that may block access to the unit.
■
Before actually installing the LEF system, Precautions on Installation & Wiring must be
thoroughly read and understood.
To access the inside of the unit for making wire connections:
1.
Remove Operation plate & Directory card and loosen the screw on the front of the unit. (Do not remove
screw)
2. Carefully lift front of intercom up and off the back chassis.
3. If desired, unplug connectors and set unit aside during mounting and wiring of the back chassis.
4. When wiring is completed, plug in connectors and put unit back together. Peel protective covering off of Operation
plate.
Operation plate
PUSH
Directory card
To remove the operation
plate, push either left or
right side of the plate.
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