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Product Reference Guide 27

Code 39

Read:

Format:

Checksum Verification:

The checksum is optional and presented as the sum

module 43 of the numerical value of the data digits.

Checksum Transmission:

When this option is enabled, the QS2500 will

transmit the checksum.

Maximum/Minimum Code Length:

Each symbology has own maximum and

minimum code length, which can be set to qualify data entry. The length

is defined as the actual bar code data length to be sent. Labels with lengths

below the minimum or above the maximum will be rejected. If the maxi-

mum and minimum code lengths are both set to zero, the global mini-

mum and maximum code length settings are in effect.

Truncate Leading/Ending:

Same as UPC-A. See page 19.

Truncate Leading Zero

Disable 00*

Enable 01

Expansion

Disable 00*

Enable 01

Option Bar Code Option Alphanumeric Entry

Exi

Start “*” Data Digits (Variable) Checksum (Optional) End “*”

NOTE

Make sure that the minimum length setting is not greater than the maximum

length setting; otherwise, all the labels of the symbology will be unreadable.

You can set the same value for both minimum and maximum length to force

decoding of only bar codes of a certain length.

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PSC Scanners User Manual Page 31