BMTW-SVN01F-EN 223
Appendix B
BCU (BMTS)
This appendix provides information about hardware installation and
troubleshooting for the BCU (BMTS). The following topics are covered for
the BMTS model only:
• BCU component descriptions and layout diagrams
• UCM communication card installation
• Communication-link field wiring for the BCU
• A startup and troubleshooting sequence for the BCU
BCU (BMTS) Components
The BCU is a NEMA-1 rated enclosure that houses a single processor/
memory card with a terminator block (TB1). The BCU contains three
UCM communication cards slots and three slots for option cards supplied
by Trane, such as Ethernet cards, ARCNET cards, modem cards, or EIA-
232 communication cards for BACnet interface. These components are
shown in Figure 97 on page 224.
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