Mounting The Xpa Ultra Series Amplifiers; Tabletop Use; Ul Guidelines For Rack Mounting - Extron electronics XPA Ultra Series User Manual

Mounting the XPA Ultra Series Amplifiers

The XPA Ultra Series amplifiers can be mounted in a rack using included rack ears, set on a
table, mounted on a rack shelf, or mounted in the plenum space above a ceiling-mounted
projector. Additionally, two XPA Ultra Series amplifiers can be connected using the included
bridging plate to create a full rack-width unit.

Tabletop Use

Four self-adhesive rubber feet are included with the audio amplifier.
For tabletop use, attach one foot at each corner on the bottom side of the amplifier and
place the unit in the desired location.

UL Guidelines for Rack Mounting

The following Underwriters Laboratories (UL) guidelines pertain to the installation of the
equipment in a rack.
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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 specified by the manufacturer [Tma = +32 to
+122 °F (0 to +50 °C)].
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.
Mechanical loading — Mounting of the equipment in the rack should be such that a
hazardous condition is not achieved due to uneven mechanical loading.
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.
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).
XPA Ultra Series Power Amplifiers • Installation 6