Motorola MC3000 Guide de l'utilisateur télécharger pdf (Page 105)

Glossary GL-9

Symbol Length Length of symbol measured from the beginning of the quiet

zone (margin) adjacent to the start character to the end of

the quiet zone (margin) adjacent to a stop character.

Symbology The structural rules and conventions for representing data

within a particular bar code type (e.g. UPC/EAN, Code 39,

PDF417, etc.).

Tolerance Allowable deviation from the nominal bar or space width.

UPC Universal Product Code. A relatively complex numeric

symbology. Each character consists of two bars and two

spaces, each of which is any of four widths. The standard

symbology for retail food packages in the United States.

Visible Laser Diode (VLD) A solid state device which produces visible laser light.

WAN Wide-Area Network. A radio network that supports data

communication beyond a local area. That is, information

can be sent across a city, state, or even nationwide.

Warm Boot A warm boot restarts the mobile computer by closing all

running programs. All data that is not saved to flash

memory is lost.

Wireless Local Area Network (WLAN) See LAN.

Wireless Wide Area Network (WWAN) See WAN.

WNMP (Wireless Network Management Protocol) This is Symbol’s

proprietary MAC layer protocol used for inter access point

communication and other MAC layer communication.

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Motorola MC3000 Guide de l'utilisateur Page 105