Trane TR200 Operating Instructions Manual page 12

How to Install
Cable Routing
The BACnet communication cable must be kept away from motor and brake resistor cables to avoid coupling of high
frequency noise from one cable to the other. Normally a distance of 200 mm (7.9 in.) is sufficient, but maintaining the
greatest possible distance between cables is generally recommended, especially where cables run in parallel over long
distances.
When crossing is unavoidable, the BACnet cable must cross motor and brake resistor cables at an angle of 90 degrees.
TR200 Embedded BACnet Operating Instructions 11