CNT-SVX05A-EN
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Communications
Figure 5 — Daisy chain resistor placement
Recommended wiring practices
The following guidelines should be followed while installing communication
wire.
• Comm5 is not polarity sensitive. Trane recommends that the installer keep
polarity consistent throughout the site
• Only strip away 2" maximum of the outer conductor of shielded cable
• Make sure that the 24VAC power supplies are consistent in how they are
grounded. Avoid sharing 24VAC between Comm5 UCMs
• Avoid over-tightening cable ties and other forms of cable wraps.
A tight tie or wrap could damage the wires inside the cable
• Do not run Comm5 cable alongside or in the same conduit as 24VAC power
• In an open plenum, avoid lighting ballasts, especially those using 277VAC
• Do not use a trunk and branch configuration, if possible. Trunk and branch
configurations shorten the distance cable can be run
