Datalogic DS8100A-3115 Manual de instalación descargar pdf (Pagina 137)

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Scanner

A device that examines a printed pattern (barcode) and either passes the uninterpreted data

to a decoder or decodes the data and passes it onto the Host system.

Serial Port

An I/O port used to connect a scanner to your computer.

Signal

An impulse or fluctuating electrical quantity (i.e.: a voltage or current) the variations of which

represent changes in information.

Skew

Rotation about the Y-axis. Rotational deviation from correct horizontal and vertical

orientation; may apply to single character, line or entire encoded item. See par. 2.3.

mbol

A combination of characters including start/stop and checksum characters, as required, that

form a complete scannable barcode.

Tilt

Rotation around the Z axis. Used to describe the position of the barcode with respect to the

laser scan line. See par. 2.3.

Trigger Sig

nal

A signal, typically provided by a photoelectric sensor or proximity switch, which informs the

scanner of the presence of an object within its reading zone.

UPC

Acronym for Universal Product Code. The standard barcode type for retail food packaging in

the United States.

Visible Laser Diode

A light source used in scanners to illuminate the barcode symbol. Generates visible red light

at wavelengths between 630 and 680 nm.

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Datalogic DS8100A-3115 Manual de instalación Pagina 137