P/2 DA8 and P/2 DA12 • Installation and Operation
Installation and Operation
2-2
Installation Overview
The distribution amplifiers can be mounted on tabletops, in
racks and under furniture. Through-desk mounting is not
recommended for these products. To install these units, follow
these steps:
1. Turn off all electrical equipment. Make sure that the input
sources, the distribution amplifier, and the output displays
are all turned off, disconnected from their power sources,
and connecting cables have been removed.
2. Mount the unit (see "Mounting the Distribution
Amplifier" below).
3. Connect the Cables (see "Operation" on pages 2-8 to 2-12).
4. Plug in the power supply and turn on the display devices
and input devices.
Mounting the Distribution Amplifier
The 1 U, full rack size of these distribution amplifiers allows
them to be mounted on a tabletop, on racks, or under furniture.
Tabletop placement
Attach the four included rubber feet to the bottom of the unit
and place it in any convenient location.
Rack Mounting
UL requirements for rack mounting
The following Underwriters Laboratories (UL) concerns are
relevant to the safe installation of these distribution amplifiers in
a rack:
1. Elevated operating ambient temperature — If the unit
is 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 equipment in an environment compatible with
the maximum ambient temperature (Tma: +122 °F, +50 ° C)
specified by Extron.
2. Reduced air flow — Install the equipment in the rack
so that the equipment gets adequate air flow for safe
operation.
3. Mechanical loading — Mount the equipment in the rack
so that uneven mechanical loading does not create a
hazardous condition.
4. Circuit overloading — Connect the equipment to
the supply circuit and consider the effect that circuit
