Wasp Bar Code WLS 8400 FZ, WLS 8400 ER manual Bar Width, Bi-directional, Binary, Byte, Cdrh Class

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.