Extron Electronics MDA 4V SDI User Guide - Manual (Page 6)

MDA 4V HD-SDI and SDI User's Guide • Introduction
MDA 4V HD-SDI and SDI User's Guide
4 MDA 4V HD-SDI and SDI User's Guide • Introduction MDA 4V HD-SDI and SDI User's Guide • Installation MDA 4V HD-SDI and SDI User's Guide • Installation
UL requirements
The following Underwriters Laboratories (UL) requirements
pertain to the installation of the MDA into a rack.
1
. Elevated operating ambient — If installed in a closed
or multi-unit rack assembly, the operating ambient
temperature of the rack environment may be greater
than room ambient. Therefore, consider installing the
equipment in an environment compatible with the
maximum ambient temperature (Tma) specified by the
manufacturer.
2 . Reduced air flow — Installation of the equipment in a rack
should be such that the amount of air flow required for
safe operation of the equipment is not compromised.
3 . Mechanical loading — Mounting of the equipment in
the rack should be such that a hazardous condition is not
achieved due to uneven mechanical loading.
4 . Circuit overloading — Consideration should be given to
the connection of the equipment to the supply circuit and
the effect that overloading of the circuits might have on
overcurrent protection and supply wiring. Appropriate
consideration of equipment nameplate ratings should be
used when addressing this concern.
5 . Reliable earthing (grounding) — Reliable earthing
of rack-mounted equipment should be maintained.
Particular attention should be given to supply connections
other than direct connections to the branch circuit (such as
the use of power strips).
Rack mounting instructions
N On the non-VersaTools rack shelves, the MDA can
mount in the front or the rear of the rack.
1 . Remove the feet from the bottom of the MDA if they are
already installed.
2 . Mount the MDA using two 4-40 x 3/16" screws in
opposite (diagonal) corners to secure the MDA to the shelf
(figure 3 on page 3).
3 . Install false faceplate(s) or other unit(s) to the rack shelf.
4 . Insert the shelf into the rack, aligning the holes in the shelf
with those of the rack.
5 . Secure the shelf to the rack using the supplied machine
screws (figure 4 on page 3).
Back of the rack mounting instructions
The MDA can be mounted to the rear of a rack using the
Extron MBB 100 VersaTools back of the rack mounting kit
(part #70-367-01) (figure 5). The kit allows the product to be
vertically mounted to the front or rear rack supports and facing
towards either the front or the rear of the rack.
Figure 5 — Attaching the back of the rack kit
1 . Remove feet from the bottom of the MDA if they are
installed.
2 . Remove two screws from one side of the unit. Retain the
screws for possible later reassembly without the bracket.
3 . Attach one bracket to the side of the unit (figure 5) using
the longer screws included in the kit.
4 . Repeat steps 2 and 3 on the other side of the unit.
5 . Mount the unit to the rack using the two included rack
screws (figure 6, on the next page). The MDA can be
vertically mounted facing in either direction.