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Appendix Q

A-48 MS-880 Industrial Long Range Scanner User’s Manual

Appendices

Sweep. One pass of the raster, up or down.

Sweep Rate (SwR) is the number of passes per second, up or down, describing the

raster image.

Symbol. A bar code. A decodable unit of information that is recognized by a bar code

scanner.

Symbology. A code type, such as Code 39 or Code 128, with special rules to define

the widths and positions of bars and spaces to represent specific numeric or alphanu-

meric information.

Symbology ID. An AIM standard prefix character that identifies the bar code type.

Tilt. Label (or scanner) rotation around the centerline of the scan beam.

Timeout. A user-selected period of time that ends a scanner's read cycle.

Tracking. Adjustment of the precision of analog-to-digital conversion.

Transmission. The transfer of data over a communications channel.

Transmit. Send or convey signals or information from one device to another.

Transparent. Data is passed between the auxiliary port and the host with keyed data

echoed to the auxiliary port

Trigger. A signal, transition, or character string that initiates a read cycle.

Watchdog Timer. A security device that detects system crashes and attempts to

reset the scanner.

Watchdog Reset. A reset that is forced whenever the software locks up.

Wild Card. User-defined character entered into a master label to permit matches

with variable characters.

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