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Crestron Serial Mouse Control Driver
Appendix 3 - Cable and Wiring Specifications
Cresnet 4-Wire Wiring
NOTE: If making category 5 connections to the Cresnet peripherals, refer to the latest
revision of the Cresnet Mini Network CAT 5 Interconnect Drawing (Doc. 5819). This
document can be obtained from the Products page (PRODUCT MANUALS section, manuals
for software and wiring diagrams section) or Downloads page (CABLES and MANUAL
Libraries) of Crestron's website (www.crestron.com). Search for CAT5.PDF.
When calculating the wire gauge for a particular Cresnet run, the length of the run and the
load 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 load factor of each unit to be daisy-chained must
be added together to determine the load factor of the entire chain. If the unit is a home-run
from a Crestron system power supply network port, the load factor of that unit is the load
factor of the entire run. The length of the run in feet and the load factor of the run should be
used in the resistance equation below to calculate the value on the right side of the equation.
Resistance Equation
R <
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)
NOTE: All Cresnet 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.
NOTE: When daisy-chaining Cresnet units, strip the ends of the wires carefully to avoid
nicking the conductors. Twist together the ends of the wires that share a pin on the network
connector, and tin the twisted connection. Apply solder only to the ends of the twisted wires.
Avoid tinning too far up the wires or the end becomes brittle. Insert the tinned connection
into the Cresnet connector and tighten the retaining screw. Repeat the procedure for the other
three conductors.
Programmer's Guide - DOC. 5916A
40,000
W here:
L x LF
WIRE GAUGE
4
6
10
15
13
Doubled CAT5
8.7
Tripled CAT5
R = R esistance (refer to next table).
L
= Length of run (or chain) in feet.
LF = Load factor of entire run (or chain).
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18
20
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Serial Mouse Control Driver • 25
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