Redundancy Level; Redundancy Level 3; Redundancy Level 4; Redundancy Level 1 - Symbol DS 3478 Product Reference Manual

13-60 DS 3478 Product Reference Guide

Redundancy Level

The digital scanner offers four levels of decode redundancy. Select higher redundancy levels for lower quality bar codes. As
redundancy levels increase, the digital scanner's aggressiveness decreases.
Select the redundancy level appropriate for the bar code quality.

Redundancy Level 1

The digital scanner must successfully read the following code types twice before decode:

Redundancy Level 2

The digital scanner must successfully read all code types twice before decode.

Redundancy Level 3

The digital scanner must successfully read code types other than the following twice before decode. It must read the following codes
three times:

Redundancy Level 4

The digital scanner must successfully read all code types three times before decode.
Code Type
Codabar
MSI
D 2 of 5
I 2 of 5
Code Type
MSI Plessey
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
4 characters or less
8 characters or less
8 characters or less
8 characters or less