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Installation and Operation, cont'd
6.
Assemble the U-bolt and the following parts in the
following order (figure 2-8):
a. Pass the legs of the U-bolt through the slotted holes on
the mount plate flange.
b. Place the legs around the projector pole.
c. Pass the legs through the holes in the contour base.
N
d. Pass the legs through the holes in the L-shaped bracket.
N
Mount Plate
Flange
U-bolt
Slotted Hole
in PMK Tray
Ceiling
Pole
Figure 2-8 — Hanging the tray on the pole
7.
Align the two slotted holes in the bottom of the L-shaped
bracket with the two slotted holes in the base of the tray.
Secure the L-bracket to the base by inserting two provided
6-32 x 5/16" screws through the aligned slots.
8.
Move the PMK 350 up to the desired location on the ceiling
pole, as close to the ceiling as desired.
9.
Secure the L-shaped bracket to the U-bolt using the
included hex nuts, washers, and lock washers. Tighten the
hex nuts securely.
Be sure to tighten the hex nuts securely enough that the
N
PMK 350 does not slide down the ceiling pole. A socket
wrench is recommended to tighten the hex nuts.
10.
Secure the front and rear plates to the mounting tray with
four of the included #6 screws.
11.
If desired, choose one of the provided four sizes of self-
adhesive cover sheets, and apply it to the underside of the
mounting tray.
DVI 201 Tx/Rx • Installation and Operation
2-10
The pole fits snugly into the depression in the
center of the contoured base.
The supplied U-bolt fits a typical (1.5" to 2.0"
diameter) ceiling pole.
Contoured
Base
L-shaped
Bracket
L-shaped
Bracket Screws
Decora unit mounting
The DVI 201 A D (Decora) transmitter and receiver can be
installed in a one-gang electrical wall box with a Decora wall
plate cover (supplied).
The installation must conform to national and local electrical
codes and to the wall plate's size requirements.
UL/Safety Requirements
The following Underwriters Laboratories (UL) requirements
pertain to the installation of the Decora transmitters and
receivers into a wall or furniture.
1.
These units are not to be connected to a centralized DC
power source or used beyond their rated voltage range.
2.
These units must be installed in UL listed junction boxes.
3.
These units must be installed with conduit in accordance
with National Electrical Code.
Preparing the site and installing the wall box
Choose a location that allows cable runs without interference.
Allow enough depth for both the wall box and the cables. The
box should be at least 2.5" (6.4 cm) deep to accommodate the
connectors and cables. Install the cables into the wall, furniture,
or conduits before installing the wall plate.
The Decora units are very deep and have connectors
N
on the back side (figure 2-9 on page 2-12). Extron
recommends its 1-gang or 2-gang junction boxes
(part #s 980130 or 980084), which have a depth of
2.5" (6.4 cm).
DVI 201 Tx/Rx • Installation and Operation
2-11
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