Set Lengths for Interleaved 2 of 5

L1 = Parameter #22, SSI #16h
L2 = Parameter #23, SSI #17h

The length of a code refers to the number of characters (that is, human readable characters), including check digits the code contains.

Note

Due to the construction of the Interleaved 2 of 5 symbology, it is possible for a scan line covering only a portion of the code to transmit as a complete scan, yielding less data than is encoded in the bar code. To prevent this, select specific lengths (Interleaved 2 of 5 - One Discrete Length, Two Discrete Lengths) for Interleaved 2 of 5 applications, or increase the Interleaved 2 of 5 Security Level. For more information, refer to Interleaved 2 of 5 Security Level (Parameter #1121, SSI #F8h 04h 61h).

The following are length options for Interleaved 2 of 5:

  • One Discrete Length—decodes only Interleaved 2 of 5 symbols containing a selected length (14).
    Example

    To decode only Interleaved 2 of 5 symbols with 14 characters, scan Interleaved 2 of 5 - One Discrete Length, and then scan the numeric bar codes 1 and 4 from Numeric Bar Codes.

  • Two Discrete Lengths—decodes only Interleaved 2 of 5 symbols containing either of two lengths.
    Example

    To decode only Interleaved 2 of 5 symbols containing either 2 or 14 characters, scan Interleaved 2 of 5 - Two Discrete Lengths, and then scan the numeric bar codes 0, 2, 1, and 4 from Numeric Bar Codes.

  • Length Within Range—decodes only Interleaved 2 of 5 symbols with a specific length range.
    Example

    To decode only Interleaved 2 of 5 symbols containing between 4 and 12 characters, scan Interleaved 2 of 5 - Length Within Range, and then scan the numeric bar codes 0, 4, 1, and 2 from Numeric Bar Codes.

  • Any Length—decodes only Interleaved 2 of 5 symbols containing any number of characters within the capability of the scanner.
Note

Enter a leading zero for single‑digit numbers. To correct an error or change the selection, scan the Cancel bar code in Numeric Bar Codes.

The following are length ranges:

  • L1: 0 to 55
  • L2: 0 to 55

Scan one of the following bar codes to set the length for Interleaved 2 of 5. By default, this parameter is set to One Discrete Length.