Options; Code 39; C.5.1 Options - Psion Teklogix 7535 G2 User Manual

Appendix C: Bar Code Settings
Non-Decoded Scanners

Options

C.5.1

Options

• Tap the stylus on the + sign next to Options to display these parameters.
Dot Time (msec)
The value selected for "Dot Time (msec)" determines (in milliseconds) how long the target-
ing dot remains on before the scanner switches to a normal scan sweep. When you double-
tap on this parameter, a dialog box is displayed in which you can enter a value from 0 to
3000. A value of 0 (zero) disables the target dot.
Short Code
When enabled, this parameter allows scanning of short I 2 of 5 bar codes (2 characters).
When disabled, these short bar codes are rejected.
Enabling "Short Code" may reduce the robustness of the decoding since the hand-held must
decode more potential bar codes; it is therefore not recommended for general-purpose bar
codes with 4 or more characters.
Verify
The value entered for this parameter determines the number of correct additional decodes re-
quired after the initial decode, prior to a bar code being accepted. Higher values significantly
increase the time it takes to decode a bar code but also improve the reliability of the decoded
bar code.
Security
This parameter controls the tolerance for decoding edge-to-edge bar codes (Code 93, Code
128, UPC/EAN). Lower values have a lower tolerance for misreads, but they also increase
the time it takes to decode the bar code. The default value of 30 is generally a good compro-
mise setting.
C.5.2

Code 39

Enabled
Set this parameter to on to enable "Code 39" or off to disable it.
Full ASCII
If this parameter is enabled, the characters +, %, and / are used as escape characters. The
combination of an escape character and the next character is converted to an equivalent
ASCII character.
C-56 Psion Teklogix 7535 G2 Hand-Held Computer User Manual