Symbol CS4070 Product Reference Manual page 148

4 - 86 CS4070 Scanner Product Reference Guide
Redundancy Level 4
The following code types must be successfully read three times before being decoded:
Redundancy Level 4 Codes
Table 4-5
Code Type
All
*
Redundancy Level 1
Redundancy Level 3
Code Length
All
(1)
(3)
Redundancy Level 2
(2)
Redundancy Level 4
(4)