Instruction manual
MERLIN LEGEND Communications System Release 5.0
Installation
555-650-140
Issue 1
June 1997
Installing the Control Unit
Page 2-5
Overview
Backboard Requirements
The backboard should be wide enough to accommodate the carrier and up to
two additional carriers, assuming that system growth is anticipated. There
should be enough room on each side of the control unit for the necessary wiring
fields.
To accommodate the maximum control unit size, make sure the backboard
meets the following requirements:
■ Material
—
¾-inch plywood
— Check with the local building code enforcement agency to see
whether fire-retardant material is required.
— Make sure that the material meets local building codes.
■ Dimensions
— With Systimax
wiring: 7 ft. wide by 4 ft. high
— Without Systimax wiring: 6 ft. wide by 3 ft. high
Installing the Backboard
When you are certain that the backboard meets the requirements indicated
above, or is the new lightweight plastic material backboard with preassembled
equipment in place, attach the backboard to the wall.
Use the following mounting hardware:
■ For a wood mounting surface, use wood screws.
■ For brick, cinderblock, or concrete, use masonry anchors.
■ For plaster or plasterboard, use toggle bolts.
■ For sheet metal, use sheet-metal screws and attach them to the
structural members.










