®
Wire the UCMs
Figure 20. Comm5 daisy-chain repeater connection
Comm5 device | Comm5 device |
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| termination boardTB1 | |
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| 1 | 13 | COMM |
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| 15 |
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| Splice | 3 |
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| Link repeater | |
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| 1 | 24 VAC |
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| 3 | Comm |
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| 1 | 7 | Comm |
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(Last device on the link) |
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Comm5 device |
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B | A | B | A | B | A | B | A |
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| Splice |
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Legend |
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= | Twisted pair, shielded wire |
| = | Shield termination |
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per Trane specifications |
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= | Shield ground | = | Figure note | Figure Notes: | |||
1 | 105 Ω termination resistor | ||||||
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= | Termination resistor |
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| 2 | Shield must be cut back and taped | |
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| 3 | A continuous shield is required. At each | |
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| controller, splice shield wire and tape back to | ||
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| prevent grounding. | ||
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