Trane TRACER SUMMIT Hardware And Software Installation page 144

Glossary
132
P
PC Workstation
Tracer Summit personal computer workstation.
pF
Picofarads.
PCM
Programmable control module.
R
RAM
Random access memory. A type of computer memory that is used to store
temporary data such as operator overrides, UCM scan data, and CPL
saved values. RAM is located on the BCU logic board.
S
SCC
™
LonMark Space Comfort Controller profile.
standard network variable type (SNVT)
Used to define data objects in the LonTalk
organized into LonMark
acronym is pronounced snivit.
T
TCM
Thermostat control module.
TUC
Terminal unit controller.
topology
The physical arrangement of cables connecting BCUs, PC Workstations,
and hubs within a network. Types of topologies used for Tracer Summit
include bus, star, and bus/star.
U
UCM
See Unit control module.
UCP
Unit control panel.
unit control module (UCM)
A factory-mounted, microelectronic circuit board that interfaces with a
BCU to provide control and monitoring of HVAC equipment.
UPCM
Universal programmable control module.
®
protocol. The SNVTs are
™
functional profiles for specific applications. The
BMTX-SVN01C-EN