Wasp Bar Code Wasp Duraline WLS 8400 FZ User Manual

Page 373

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Glossary

GL-3

Bar Width

Thickness of a bar measured from the edge closest to
the symbol start character to the trailing edge of the
same bar (see

X Dimension

).

Baud Rate

A measure of the data flow or number of signaling
events occurring per second. When one bit is the
standard "event," this is a measure of bits per second
(bps). For example, a baud rate of 50 means
transmission of 50 bits of data per second.

Bi-directional

Denotes that a machine-readable symbol can be read
successfully in two directions – either backwards or
forwards. Also identifies a scanner that can operate or
a bar code that can be read independent of scanning
direction.

Binary

Denotes a numbering system to base 2 in which
numbers are expressed as combinations of the digits
0 and 1 with positional weighting based on powers of
2. In computing, these can be represented electrically
by 'off' and 'on' respectively or in machine-readable
symbols by narrow and wide elements or by the
absence or presence of a bar module.

Bit

Binary digit. One bit is the basic unit of binary
information. Generally, eight consecutive bits
compose one byte of data. The pattern of 0 and 1
values within the byte determines its meaning.

Byte

A sequential series of bits comprising one character
and handled as one unit. Usually encoded in the
ASCII format, a byte usually consists of eight bits and
represents one alphabetic or special character, two
decimal digits or eight binary bits.

CDRH

Center for Devices and Radiological Health. A
federal agency responsible for regulating laser
product safety. This agency specifies various laser
operation classes based on power output during
operation.

CDRH Class 1

This is the lowest power CDRH laser classification.
This class is considered intrinsically safe, even if all
laser output were directed into the eye's pupil. There
are no special operating procedures for this class.

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