Setup; Network Wiring - Crestron TPS-4500IMC User Manual

Interface Module

Setup

Network Wiring

NOTE: When making wire connections, refer to the latest revision of
the Cresnet Network Interconnect Drawing (Doc. 5411). The document
can be obtained from the Downloads page (CABLES and MANUAL
Libraries) of the Crestron website (www. crestron.com). Search for the
CRESNET.PDF files.
When calculating the wire gauge for a particular network run, the length
of the run and the power factor of each network unit to be connected
must be taken into consideration. If network units are to be daisy-chained
on the run, the load factor of each network unit to be daisy-chained must
be added together to determine the load factor of the entire chain. The
length of the run in feet and the load 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 < L x LF
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 after this paragraph.
Wire Gauge Values
NOTE: All network wiring must consist of two twisted-pairs. One
twisted pair is the +24V conductor and the GND conductor and the other
twisted pair is the Y conductor and the Z conductor.
4 • Interface Module: TPS-4500IMC
40,000
RESISTANCE (R)
4
6
10
15
13
Crestron TPS-4500IMC
Where: R = Resistance (refer to table below).
L = Length of run (or chain) in feet.
LF = Load factor of entire run (or chain).
WIRE GAUGE
24 (Doubled-CAT 5)
Operations Guide - DOC. 5890
16
18
20
22