Installation and Operation, cont’d

Preparing the installation site and installing the wall box

Actual-size rough-in templates for each model are provided in Appendix B. If needed, make a 100% size photocopy of the appropriate template to use for installation. Compare the photocopy with the faceplate and wall box to make sure the photocopy size is the same as the equipment.

Use the template as a guide to mark and cut the hole in the wall or furniture through which the interface will be installed. The innermost line represents the opening where material will be removed and the wall box will be installed.

1.	Cut out the center portion (up to the guidelines) of the
	cut-out (rough-in) template.
2.	Place the template on the surface where the interface
	will be installed. Use a soft pencil to mark the
	guidelines for the opening on the wall/furniture.

Wall Stud

Wall Box

Screws or Nails

Flush with Wall Surface

3.	Cut out the material from the cut-out area with a
	jigsaw or small hand saw.
4.	Check the opening size by inserting the wall box (if
	used) or the interface (if no wall box is used) into the
	opening. The wall box will be mounted flush with the
	outer wall or furniture surface. The box and/or
	interface should fit easily into the opening.
5.	If needed, use a saw, file or sandpaper to enlarge the
	hole. Smooth the edges of the opening to avoid
	damage or injury to yourself or the cables during
	installation.
6.	Attach the wall box to the wall stud (2 x 4) with nails
	or screws, leaving the front edge flush with the wall
	surface, as shown in the following illustration.

Attaching the wall box to wall studs

To attach the wall box to wood, use four #8 to # 10 wood or sheet metal screws. A minimum of 1/2 inch (1.25 cm) of screw threads must penetrate the wood. If the wood is a 2 x 4, such as a wall stud, 10-penny or larger nails can be used.

To attach the electrical wall box to metal, use four #8 or #10 sheet metal screws (self-tapping) or #8 or #10 machine bolts with matching nuts.

7.Output cables will usually be out of sight inside a wall, for example. Feed the cables through the wall box “punch-out” holes for connection to the interface. Cable clamps should be used to hold the cables in place for strain relief.

8.Exposed cable shields (braids or foil) are potential sources of short circuits. Trim back and/or insulate shields with heat shrink. Details for typical maximum coaxial cable bend inside a wall box are given on page 2-3.

9.Configure, cable and test the interface before securing the interface to the wall box. Configuration consists of setting circuit board DIP switches and jumpers based on installation requirements. See page 2-14 for more information.

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RGB 400 Series Installation and Operation

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