Reference Information; Mounting The Dmp 128; Tabletop Use; Rack Mounting - Extron electronics DMP 128 User Manual

Reference
Information
This section contains reference information for the DMP 128, including:
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Mounting the DMP 128
The 1U high, full rack width, 8.5 inch deep DMP 128 Digital Matrix Processor can be set or
mounted in one of the following methods:
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Tabletop Use

Each DMP 128 is supplied with rubber feet (not installed). For tabletop use, attach a
self-adhesive rubber foot to each corner of the bottom of the unit.

Rack Mounting

The DMP 128 is delivered with rack mounting brackets attached. For rack mounting, do not
install the rubber feet. Use the rack ears to mount the DMP 128 in a standard equipment
rack. The DMP 128 can be mounted on a 19 inch Universal 1U or Basic rack shelf.

UL Rack Mounting Guidelines

The following Underwriters Laboratories (UL) guidelines pertain to the safe installation of the
DMP 128 in a rack.
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Mounting the DMP 128
Firmware Loader
DMP 128 Hardware Reset Modes
DSP SIS Commands for Mix-Point Level and Mute Control
SIS Command Mix-Points
Set on a table
Mounted on a rack shelf
Mounted under a desk or tabletop.
Elevated operating ambient temperature — If installed in a closed or multi-unit rack
assembly, the operating ambient temperature of the rack environment may be greater
than room ambient temperature. Therefore, install the unit in an environment compatible
with the maximum ambient temperature (Tma = +122 °F, +50 °C) specified by Extron.
Reduced air flow — Install the equipment in a rack so that the amount of air flow
required for safe operation of the equipment is not compromised.
Mechanical loading — Mount the equipment in the rack so that a hazardous
condition is not achieved due to uneven mechanical loading.
DMP 128 • Reference Information 165