Crestron DigitalMedia DM-MDA-64-PWS Instructions

DigitalMedia™ Power Supplies:
DM-MDA-64-PWS/DM-MDA-128-PWS
Two redundant DM-MDA-64-PWS power supplies
occupy the DM-MD64X64. Three redundant
DM-MDA-128-PWS power supplies occupy the
DM-MD128X128. This document provides instructions
for replacing a failed power supply.
CAUTION: Before removing a power supply from a
power supply slot, ac power must be removed from the
power supply to prevent damage to the equipment.
In addition, the replacement power supply must be
installed before power is reconnected.
CAUTION: The power supplies are static sensitive.
Standard electrostatic discharge precautions should be
followed when handling the power supplies.
NOTE: Although the DigitalMedia™ switcher continues
to operate if a single power supply fails, it is
recommended that the failed power supply be replaced
as soon as possible to restore power supply
redundancy.
NOTE: The power supplies are hot swappable;
therefore, a failed power supply can be replaced without
shutting down the DigitalMedia switcher.
To replace a power supply:
1. Disconnect the power cord connected to the
power inlet of the power supply being replaced.
2. Using a Phillips head screwdriver, loosen—but
do not remove—the Phillips head screw that
holds the power supply retainer plate in place.
DM-MDA-64-PWS Power Supply Installation
Screw and
Retainer Plate
Locking Tab
Crestron Electronics, Inc.
15 Volvo Drive Rockleigh, NJ 07647
Tel: 888.CRESTRON
Fax: 201.767.7576
www.crestron.com
3. Do either of the following:

For the DM-MDA-64-PWS, slide the retainer
plate upward until it clears the power supply,
and then tighten the screw just enough to
hold the retainer plate in place.

For the DM-MDA-128-PWS, slide the
retainer plate sideways until it clears the
power supply.
4. Do either of the following:

For the DM-MDA-64-PWS, lift up the locking
tab of the power supply, and then use the
power supply handle to pull the power
supply out of the slot.

For the DM-MDA-128-PWS, use the power
supply handle to pull the power supply out of
the slot.
5. Insert the replacement power supply into the
slot until the power supply is fully seated.
6. (DM-MDA-64-PWS only) Loosen the screw that
holds the retainer plate in place.
7. Slide the retainer plate back in place, and then
tighten the screw just enough to hold the plate
in place—do not overtighten the screw.
8. Connect the power cord to the power inlet of the
power supply.
DM-MDA-128-PWS Power Supply Installation
Screw and
Retainer Plate
Installation Guide – DOC. 7505B
(2036010)
10.13
Specifications subject to
change without notice.