Pitch

Rotation of a code pattern about the X-axis. The normal distance between center line or adjacent characters. See pars. 2.2.1 and 2.5.

Position

The position of a scanner or light source in relation to the target of a receiving element.

Protocol

A formal set of conventions governing the formatting and relative timing of message exchange between two communicating systems.

Raster

The process of projecting the laser beam at varied angles spaced evenly from each other. Typically, the mirrored rotor surfaces are angled to create multiple scan lines instead of a single beam.

Resolution

The narrowest element dimension which can be distinguished by a particular reading device or printed with a particular device or method.

RS232

Interface between data terminal equipment and data communication equipment employing serial binary data interchange.

RS485

Interface that specifies the electrical characteristics of generators and receivers for use in balanced digital multipoint systems such as on a Multidrop line.

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, generally identifiable by a 9- pin or 25-pin connector.

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 pars. 2.2.1 and 2.5.

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