Unova Intermec 1551C User Manual page 88

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Glossary, continued
protocol
The type of communications between two devices (such as a scanner and a
host terminal) that controls data flow.
RS–232
A widely used standard interface for connections between data communication
equipment.
scan
To read a bar code by scanning with a laser scanner, that converts optical
information into electrical signals.
scannable
A bar code that can be successfully scanned and correctly decoded.
scanner
Also Bar Code Scanner, Laser Scanner. A device that can capture an image,
such as a bar code, and convert the pattern into a unique set of electrical signals
that can be read by a host terminal.
scanner holder
A plastic holder that is used to hold the scanner when it is not being used, or
when it is used with the Scanner Stand.
scanner stand
A device that holds the scanner. With the stand, the scanner trigger can be
enabled automatically when a a bar code is placed beneath the scanner
window.
serial communications mode
An operating method for the 15XXX02 scanner that you connect the scanner to
a PC through the serial communications port.
serial programming
An operating method for the 15XXX02 scanner that you connect the scanner to
a PC through the serial communications port.
standby mode
A configuration that lowers power consumption when the scanner is idle.
start and stop character
Special bar code characters at the beginning and end of a bar code that instruct
the scanner when to start and stop reading and well as indicate the scanning
direction.
symbology
A type of bar code. UPC, Code 39, Interleaved 2 of 5, and Codabar are examples
of different symbologies.
terminal
See host terminal.
1551C Decoding Laser Scanner User's Guide