Motorola LS3578 - Manual (Page 218)

11 - 48 Symbol LS3578 Product Reference Guide
Redundancy Level
The scanner offers four levels of decode redundancy. Select higher redundancy levels for lower quality bar codes.
As redundancy levels increase, the scanner’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
Redundancy Level 2
All code types must be successfully read twice before being decoded.
Redundancy Level 2
Code Type Code Length
Codabar 8 characters or less
MSI 4 characters or less
D 2 of 5 8 characters or less
I 2 of 5 8 characters or less