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Glossary - 6 VC6000 Series Product Reference Guide

PAN . Personal area network. Using Bluetooth wireless technology, PANs enable devices to communicate wirelessly.

Generally, a wireless PAN consists of a dynamic group of less than 255 devices that communicate within about a 33-foot

range. Only devices within this limited area typically participate in the network.

Parameter. A variable that can have different values assigned to it.

Percent Decode. The average probability that a single scan of a bar code would result in a successful decode. In a

well-designed bar code scanning system, that probability should approach near 100%.

Programming Mode. The state in which a scanner is configured for parameter values. See Scanning Mode.

Quiet Zone. A clear space, containing no dark marks, which precedes the start character of a bar code symbol and follows

the stop character.

QWERTY. A standard keyboard commonly used on North American and some European PC keyboards. “QWERTY” refers

to the arrangement of keys on the left side of the third row of keys.

RAM. Random Access Memory. Data in RAM can be accessed in random order, and quickly written and read.

Reflectance. Amount of light returned from an illuminated surface.

Resolution. The narrowest element dimension which is distinguished by a particular reading device or printed with a

particular device or method.

RF. Radio Frequency.

ROM. Read-Only Memory. Data stored in ROM cannot be changed or removed.

Router. A device that connects networks and supports the required protocols for packet filtering. Routers are typically used

to extend the range of cabling and to organize the topology of a network into subnets. See Subnet.

RS-232. An Electronic Industries Association (EIA) standard that defines the connector, connector pins, and signals used to

transfer data serially from one device to another.

Scanner. An electronic device used to scan bar code symbols and produce a digitized pattern that corresponds to the bars

and spaces of the symbol. Its three main components are: 1) Light source (laser or photoelectric cell) - illuminates a bar

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Motorola VC6000 Series Especificaciones Pagina 160