Motorola MT2090 사용자 설명서

12 - 68 MT2070/MT2090 User Guide

Redundancy Level

Parameter # 4Eh

The device offers four levels of decode redundancy. Select higher redundancy levels for decreasing levels of bar
code quality. As redundancy levels increase, the device’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 2

The following code types must be successfully read twice before being decoded:

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:

Table 12-2

Redundancy Level 1 Codes

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

Table 12-3

Redundancy Level 2 Codes

Code Type

Code Length

All

Table 12-4

Redundancy Level 3 Codes

Code Type

Code Length

MSI

4 characters or less

D 2 of 5

8 characters or less

I 2 of 5

8 characters or less

Codabar

8 characters or less