Scanner Redundancy - Intermec JANUS 2020 User Manual

JANUS 2020 Hand-Held Computer User's Manual (4MB)

Scanner Redundancy

Purpose: Defines the number of scans (voting) the scanner takes of the same label that
must decode correctly for a good read of the label. Voting allows the reader to
decode the same bar code multiple times during a single-trigger event, and to
compare the decoded information a specific number of times before signaling a
good read. There are three options:
Low Allows the reader to accept the first good read, which speeds up reader
performance. This setting is recommended when scanning good quality bar
codes.
Normal The reader decodes the bar code a minimum number of times in each
trigger event.
High The reader scans and decodes the bar code a maximum number of times
in each trigger event. The specific number of comparisons depends on each bar
code symbology. The high setting is recommended when scanning poor
quality labels that may cause substitution errors.
For example, when you scan Code 39 labels and the scanner redundancy is set
to normal, two successive matching decodes in a single-trigger event are
required. When scanner redundancy is set to high, three successive matching
decodes in a single-trigger event are required.
Default: Normal
Syntax: SRdata
Acceptable values for data are:
0
1
2
Scan: One of these bar codes:
None
*$+SR0*
*$+SR0*
High
*$+SR2*
*$+SR2*
12-86
None
Normal
High
BC
NF
Normal
*$+SR1*
*$+SR1*