Trane Tracer MP581

Wiring requirements
CNT-SVN01C-EN 41
Wiring requirements
Twisted-pair wire
The recommended Comm5 communication-link wiring is 22-gauge,
Level 4, twisted-pair wire. The wire can be either shielded or unshielded.
However unshielded wire is recommended for most installations. You can
also use low capacitance, 18-gauge, shielded, twisted-pair with stranded,
tinned-copper conductors (Trane “purple” wire).
The maximum wire length for Comm5 communication links is 4,500 ft
(1,400 m).
Recommended wiring configuration
Comm5 communication-link wiring must be installed in a daisy-chain
configuration (see Figure 21 and Figure 22 on page 42).
Figure 21. Daisy chain configuration
Figure Note:
• Maximum wire length for Comm5 is 4,500 ft (1,400 m). (Comm5 wire length
limitations can be extended through the use of a link repeater. See “Comm5
physical link repeater” on page 44.)
• For termination resistor placement, see “Termination resistance placement
for Comm5 links” on page 42.
System Panel
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Device
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