PSC Magellan 8500 Specifikace stáhnout pdf (Strana 463)

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Product Reference Guide F-1

Appendix F

Handheld Data Format Requirements

This appendix provides application notes to describe the general format of

data that can be accepted by the scanner through the auxiliary port as

transmitted from a handheld scanner.

Handheld Data Format Requirements General

• 9600 bps, 8 data bits, 1 stop bit, no parity.

• RTS is used to "bracket" the data received from the handheld:

RTS must be asserted high during data transmission, and de-

asserted after label transmission is complete. No other flow con

trol mechanisms are required or supported.

• Symbologies requiring fixed lengths (UPC/EAN) will enforce

length requirements for validation of the label.

• Handheld will be required to transmit start and stop characters

for Codabar and Code 39 labels.

• Appropriate industrial length requirements will be enforced (if

configured) for validation of the label.

• Maximum label lengths will be enforced for label validation (i.e.

labels longer than the maximum label size will not be validated).

• Standard Datalogic formats generally use a single prefix character.

The specific formats are provided below.

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