IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide
A-8
S
s second(s)
SCSI small computer systems interface
SRAM static random access memory
som start of message
system a reader, RF module, antenna, tag, and tag programmer, all described by their general
application and their interfaces with each other and any connected devices that are
defined as being outside the system
T
tag small, self-contained device acting as an identifying transponder
tag programmer initialization device that is capable of setting or programming a tag into its initial
functional mode of operation
TDM time division multiplexing, used in this document to refer to the use of time division
multiplexing of multiple readers within close proximity of each other
TDMA time division, multiple access refers to the capability to read multiple tags in an open-
road configuration by a single reader.
Title 21 State of California code of regulations, Chapter 16, Title 21, standard used for AVI/
DSRC (digital short-range communication) communication protocol
toll any application of the system equipment wherein the equipment is used to assist in the
orderly collection of money in exchange for the passage of a vehicle through a partic-
ular installation point
TrAC TransCore Action Center
transponder a tag
U
UPS uninterruptible power supply
UTA universal toll antenna
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