Redundancy Level 1; Redundancy Level 2; Redundancy Level 3 - Motorola PL3307 Integration Manual

9 - 84 PL3307 Decoder Integration Guide
Redundancy Level
Parameter # 4Eh
The decoder offers four levels of decode redundancy. Select higher redundancy levels for decreasing levels of
bar code quality. As redundancy levels increase, the decoder's aggressiveness decreases.
Select the redundancy level appropriate for the bar code quality.

Redundancy Level 1

The following code types must be successfully read twice before being decoded:
Redundancy Level 1 Codes
Table 9-2
Code Type
Codabar
MSI
D 2 of 5
I 2 of 5

Redundancy Level 2

The following code types must be successfully read twice before being decoded:
Redundancy Level 2 Codes
Table 9-3
Code Type
All

Redundancy Level 3

Code types other than the following must be successfully read twice before being decoded. The following
codes must be read three times:
Redundancy Level 3 Codes
Table 9-4
Code Type
MSI
D 2 of 5
I 2 of 5
Codabar
Code Length
8 characters or less
4 characters or less
8 characters or less
8 characters or less
Code Length
All
Code Length
4 characters or less
8 characters or less
8 characters or less
8 characters or less