Symbol-technologies MC9000-K User Manual download pdf (Page 517)

100

101

Glossary

GL-15

Scanning Mode The scanner is energized, programmed and ready to read a

bar code.

Scanning Sequence A method of programming or configuring parameters for a

bar code reading system by scanning bar code menus.

SMDK Software MobilityDevelopment Kit

Self-Checking Code A symbology that uses a checking algorithm to detect

encoding errors within the characters of a bar code symbol.

Shared Key Shared Key authentication is an algorithm where both the

AP and the MU share an authentication key.

SHIP Symbol Host Interface Program.

SMDK Symbol Mobility Developer Kit.

Soft Reset See Warm Boot.

Space The lighter element of a bar code formed by the background

between bars.

Spectrum24 Symbol’s frequency-hopping, spread spectrum cellular

network.

Spectrum One Symbol’s implementation of the Spread Spectrum wireless

network, utilizing direct sequencing.

Specular Reflection The mirror-like direct reflection of light from a surface,

which can cause difficulty decoding a bar code.

Spread Spectrum A technique for uniformly distributing the information

content of a radio signal over a frequency range larger than

normally required for robust transmission of data.

Spreading the signal without adding additional information

adds significant redundancy, which allows the data to be

recovered in the presence of strong interfering signals such

as noise and jamming signals. The primary advantage of

spread spectrum technology is its ability to provide robust

communications in the presence of interfering signals.

Spring Radio Protocol A radio protocol that may be used by the Symbol

Spectrum24 radio card. Symbol Radio cards that use the

Spring protocol also have an Net ID.

Start/Stop Character A pattern of bars and spaces that provides the scanner with

start and stop reading instructions and scanning direction.

The start and stop characters are normally to the left and

right margins of a horizontal code.

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