Crestron b-g2-fp b-g3-fp 用户手册

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2 and 3 Gang Faceplates
 
Crestron B-G2-FP & B-G3-FP
 
Setup 
Network Wiring 
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 (
).  
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 following resistance equation to calculate the value on the right side 
of the equation. 
Resistance Equation 
R  =  Resistance (refer to table below).
L   =  Length of run (or chain) in feet.
PF = Power factor of entire run (or chain).
R  < L x PF
40,000
Where:
 
The required wire gauge should be chosen such that the resistance value 
is less than the value calculated in the resistance equation. Refer to the 
table below. 
Wire Gauge Values 
RESISTANCE (R)
WIRE GAUGE
4
16
6
18
10
20
15
22
13
Doubled CAT5
8.7
Tripled CAT5
 
4  
  2 and 3 Gang Faceplates:  B-G2-FP & B-G3-FP 
 Installation Guide - DOC. 8182