Chapter 5 UCM Wiring and Addressing
86 BMTW-SVN01F-EN
Figure 42. ICS Connections Between the BCU and IntelliPak Rooftop
Unit UCMs on a Comm4 Link
Device Addressing
Each UCM must have a unique address on each link. On the IntelliPak,
addresses are set from the front panel. Refer to the IntelliPak installa-
tion, operation, and maintenance manual for details.
Lighting Control Panel (LCP) Interface
Description
The lighting control panel (LCP) allows Tracer Summit to control build-
ing lighting circuits (typically in accordance with Time of Day schedules)
and monitor physical switch and telephone inputs. The LCP allows coor-
dination of the lighting circuit operation with other building management
functions, like Time of Day scheduling.
The LCP communicates on a Comm3 isolated communication link, via the
LCP supervisor. The LCP supervisor provides a communication interface
between the LCP and the BCU. The LCP supervisor has two serial com-
munication links:
• The first link allows it to communicate with the Tracer Summit BCU
over a twisted, shielded pair of wires.
• The second communication link allows the LCP Supervisor to commu-
nicate with the LCP panels.
The LCP supervisor is a communication-link translator and a pathway
for multiple LCPs. Only one LCP supervisor can exist on the communica-
tion link. For specific information about the number of LCPs allowed per
BCU and per communication link, refer to Table 7 on page 46.
Device #3
Comm Link
Terminal Block
Device #1
Cut and tape
the shield
wires together.
Device #2
Cut and tape
the shield
wires together.
Cut and tape
back the
shield wire.
1
2
3
4
5
6
7
8
9
10
11
12
Link 1
Link 2
Link 3
Last device on
the Comm4 link
Shield Shield Shield
Comm Link
Terminal Block
Comm Link
Terminal Block
Link 4
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