Crestron CNX-B4 Installation Guide download pdf (Page 11)

Crestron CNX-B2/B4/B6/B8/B12 Single Gang Keypads

Operations & Installation Guide - DOC. 8173A Single Gang Keypads: CNX-B2/B4/B6/B8/B12 • 7

Industry Compliance

As of the date of manufacture, the keypads have been tested and found to

comply with specifications for CE marking and standards per EMC and

Radiocommunications Compliance Labelling (N11785).

NOTE: This device complies with part 15 of the FCC rules. Operation is

subject to the following two conditions: (1) this device may not cause

harmful interference, and (2) this device must accept any interference

received, including interference that may cause undesired operation.

Setup

Network Wiring

CAUTION: Use only Crestron power supplies for Crestron equipment.

Failure to do so could cause equipment damage or void the Crestron

warranty.

NOTE: When installing network wiring, refer to the latest revision of

the wiring diagram(s) appropriate for your specific system configuration,

available from the Downloads | Product Manuals | Software and Wiring

Diagrams section of the Crestron website (www.crestron.com)

When calculating the wire gauge for a particular Cresnet run, the length

of the run and the power factor of each network unit to be connected

must be taken into consideration. If Cresnet units are to be daisy-chained

on the run, the power factor of each unit to be daisy-chained must be

added together to determine the power factor of the entire chain. If the

unit is a home-run from a Crestron system power supply network port,

the power factor of that unit is the power factor of the entire run. The

length of the run in feet and the power factor of the run should be used in

the resistance equation on the next page to calculate the value on the right

side of the equation.

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Crestron CNX-B4 Installation Guide Page 11