Read This First
IEC Connector
Three-pin connector used on sockets that carry mains electricity to the computer.
All PCs use a male IEC connector and mains lead with a female IEC connector.
Interrogation Pulse
A signal transmitted by the coupler to activate the smart label’s transponder.
Monitoring Port
Parallel Port granting access to the HPI. It communicates directly with the Radio
Processing Unit
Multi-Read
See Anti-Collision
Nibble
Half a byte (4 bits)
Packaged Reader
A reader in its casing.
Phase Shift
Difference of phase between the 13.56 MHz field emitted by two antennas. This
feature is dedicated to rotating field applications and three-dimensional volume smart label
detection.
Protocol
A set of rules governing a particular function, such as the flow of data/information in a
communication system (communication between a smart label and a reader or a reader and a PC
or host computer).
Radio Frequency Identification System
(RFID) An automatic identification and data capture
system comprising one or more readers and one or more smart labels in which data transfer is
achieved by means of suitable modulated inductive or radiating electromagnetic carriers.
Radio Processing Unit
This unit controls the main features of the Medio L200, such as the RF
channels, the multiplexer and the smart label decoding.
Reader
Electronic system for the communication between smart labels and host computers.
Reader Talks First
Chip protocol for exchanges between the reader and the chip, whereby the
chip waits for a command from the reader to which it responds.
RS-232
Electronic Industries Association (EIA) standard for serial interfaces between computers
and peripherals which defines the function, the electrical characteristics and the timing of signals.
RS-485
Electronic Industries Association (EIA) standard for multipoint, differential data
transmission. It allows multiple nodes to communicate bi-directionally over 1 or 2 twisted pairs.
Smart Label
Small, flexible tag from the 13.56 MHz TAGSYS product line. A smart label is made
of a chip connected to an etched antenna.
Tag
See Smart Label.
Tag Talks First
Chip protocol for exchanges between the reader and the chip, whereby the tag
sends information continuously, without waiting for a specific command from the reader.
Transceiver
A combined transmitter and receiver.
Transponder
A combined receiver/transmitter that automatically transmits a signal when a ‘trigger’
is received by it. The trigger is often a pulse, called an interrogation pulse.
January 2005
Revision 1.0
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