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 auxilliary 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 control mecha-
nisms 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 con-
figured) 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.