Glossary
214 BMTW-SVN01F-EN
configuration
The physical and logical elements of an information processing system,
the manner in which they are organized, or both. May refer to hardware
or software.
D DAC
LonMark
™
Discharge Air Controller profile.
device ID
A software address assigned to Tracer Summit BCUs and PC Worksta-
tions when a site is first created. The device ID then becomes the
“address” for that device and allows Tracer Summit software to success-
fully route messages and alarms to the device. Syn: instance, instance #,
device instance, ID.
DIP switch
A dual inline package (DIP) switch is a set of individual switches pack-
aged in a single assembly. The most common type has eight individual
switches. Each switch can be toggled to be open or closed. For a BCU to
communicate with a device, the DIP switch package of each UCM must be
set to a unique address. The address is derived from the positions of the
switches in the package.
E EIA-232
Interface standard used for communications between peripheral devices
and energy management systems. (Formerly known as RS-232.)
EMI/RFI
Electromagnetic interference/radio-frequency interference.
Ethernet
A local area network (LAN) architecture developed by Xerox Corporation
that uses a baseband architecture common to modern LANs, including
building automation systems. Ethernet handles about 10,000,000 b/s and
can be used with almost any kind of computer. It is valid for use with
Tracer Summit BACnet protocol.
G GLD
Generic LonTalk
®
device.
H HVAC
Heating, ventilating, and air conditioning.
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