Network Wiring - Crestron UPX-2 Operation Manual

Crestron UPX-2
Ear Attachment for Rack Mounting
20 ¥ Universal Presentation Processor: UPX-2
3. Attach the ear to the unit with three screws from step 1, as shown in the
following illustration.
4. Repeat procedure (steps 1 through 3) to attach other ear to opposite side.

Network Wiring

While the UPX-2 does not require network power to operate, the following
guidelines should still be observed.
CAUTION: In order to ensure optimum performance over the full range of your
installation topology, Crestron Certified Wire, and only Crestron Certified Wire, may
be used. Failure to do so may incur additional charges if support is required to
identify performance deficiencies as a result of using improper wire.
CAUTION: Use only Crestron power supplies for Crestron equipment. Failure to
do so could cause equipment damage or void the Crestron warranty.
CAUTION: Provide sufficient power to the system. Insufficient power can lead to
unpredictable results or damage to the equipment. Please use the Crestron Power
Calculator to help calculate how much power is needed for the system
(http://www.crestron.com/calculators).
When calculating the length of wire for a particular Cresnet run, the wire gauge and
the Cresnet power usage of each network unit to be connected must be taken into
consideration. Use Crestron Certified Wire only. If Cresnet units are to be daisy-
chained on the run, the Cresnet power usage of each network unit to be daisy-
chained must be added together to determine the Cresnet power usage of the entire
chain. If the unit is a home-run from a Crestron system power supply network port,
the Cresnet power usage of that unit is the Cresnet power usage of the entire run. The
wire gauge and the Cresnet power usage of the run should be used in the following
equation to calculate the cable length value on the equation's left side.
Cable Length Equation
Where:
40,000
L <
R x P
Universal Presentation Processor
L = Length of run (or chain) in feet
R = 6 Ohms (Crestron Certified Wire: 18 AWG (0.75 MM ))
or 1.6 Ohms (Cresnet HP: 12 AWG (4 MM ))
P = Cresnet power usage of entire run (or chain)
Operations Guide – DOC. 6276B
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