Lighting Control Panel (LCP) Interface
BMTW-SVN01F-EN 87
Type of Communication Card: Isolated Comm3
Refer to “Isolated Comm3 Card” on page 49.
Wiring Notes
To establish connections between the UCM and the BCU, Trane requires
that you use communication-link wire specified in this manual. For wire
selection specifications, see “UCM Communication-Wire Characteristics”
on page 55.
Use fiber-optic modems for building-to-building communication. If fiber
optics are not used, building-to-building communication wiring requires a
Transtector transient protector at each building. You can purchase Tran-
stector protectors through Trane. Contact your local Trane sales office for
details.
To connect communication wiring:
1. Attach one end of the communication-link wiring to TB2 on the BCU.
For the location of TB2, refer to Figure 16 on page 47.
2. Attach the other end of the communication-link wiring to the LCP
supervisor at TB5. For communication-link connection points on the
LCP supervisor, refer to Figure 43 on page 88.
Note:
Observe the polarity throughout communication links.