Psion Teklogix 7535 G2 User Manual page 192

Chapter 5: Configuration
Decoded (Internal) Scanners
Code 39
When this parameter is enabled, the prefix character "A" is added to all "Code 32"
bar codes.
Set Length L1 And Set Length L2
Lengths for "Code 39" can be set for Any length, Length within a range, One
discrete length or Two discrete lengths. The length of a code refers to the number
of characters (i.e., human readable characters), including check digit(s).
Double-tapping on these parameters displays dialog boxes labelled Set Code
Lengths where you can define the code length that will be decoded by your scanner.
Choosing One discrete length allows you to decode only those codes containing a
selected length. Choosing Two discrete lengths allows you to decode only those
codes containing two selected lengths. Length within a range allows you to decode
a code type within a specified range from 2 to 55.
Check Digit Verification
When this parameter is enabled, the integrity of a "Code 39" symbol is checked to
ensure that it complies with specified algorithms.
Note: Only those "Code 39" symbols that include a MOD 43 check digit are
decoded when this parameter is enabled.
Transmit Check Digit
If the check digit is to be transmitted with the data, this parameter must be enabled.
160 Psion Teklogix 7535 G2 Hand-Held Computer User Manual
Figure 5.69 Setting Code Lengths