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MS-Q Imager User’s Manual 7-7
Advanced Operations
Trigger Optimization
You can program all triggers/buttons, or each trigger/button individually, so that it is optimized
for symbologies of certain densities and sizes. The table below describes the various
configuration settings that can be obtained (A1 through D3) by reading the symbols in the
subsequent tables.
Optimization Guide
Important: VGA “Fast Processing” is only supported in Rev 5 hardware and earlier.
Definitions
Symbol Density: Width of the narrowest bar of a linear (1D) symbol or the side of an
individual element (cell or module) of a Data Matrix symbol.
Resolution: The number of pixels available for decoding in a given area.
Decode Try Time: The time spend attempting to decode a given symbol.
Region of Interest: The pixel area in the imager that is evaluated during a read attempt.
Use the tables on the following pages to program your MS-Q’s handle trigger or top buttons
for the fields of view and symbol densities that best match your application. See
Optimization
Parameters
for more detailed explanations of each setting, and for examples of conditions
in which you would use each setting (page 7-13).
Region of
Interest
Fast
Processing
(VGA Mode)
High Density Symbols
Near Field
Low Density Symbols
Far Field
High and Low Density Symbols
Near and Far Field
A1 - SXGA Mode
Near Field On
Far Field On
NF Resolution: 1024 x 640
FF Resolution: 1024 x 640
Decode Try Time: Long
A2 - SXGA Mode
Near Field On
Far Field On
NF Resolution: 832 x 640
FF Resolution: 1024 x 640
Decode Try Time: Normal
A3 - SXGA Mode
Near Field On
Far Field On
NF Resolution: 480 x 480
FF Resolution: 640 x 480
Decode Try Time: Short
B3 - VGA Mode
Near Field On
Far Field On
NF Resolution: 480 x 320
FF Resolution: 480 x 320
Decode Try Time: Short
B1 - SXGA Mode
Near Field On
Far Field On
NF Resolution: 1024 x 640
FF Resolution: 1024 x 640
Decode Try Time: Normal
B2 - SXGA Mode
Near Field On
Far Field On
NF Resolution: 640 x 512
FF Resolution: 832 x 640
Decode Try Time: Short
C1 - SXGA Mode
Near Field On
Far Field Off
NF Resolution: 1024 x 640
FF Resolution: NA
Decode Try Time: Normal
C2 - SXGA Mode
Near Field On
Far Field Off
NF Resolution: 640 x 640
FF Resolution: NA
Decode Try Time: Normal
C3 - VGA Mode
Near Field On
Far Field Off
NF Resolution: 480 x 320
FF Resolution: NA
Decode Try Time: Short
D1 - SXGA Mode
Near Field Off
Far Field On
NF Resolution: NA
FF Resolution: 1024 x 640
Decode Try Time: Normal
D2 - SXGA Mode
Near Field Off
Far Field On
NF Resolution: NA
FF Resolution: 832 x 512
Decode Try Time: Normal
D3 - VGA Mode
Near Field Off
Far Field On
NF Resolution: NA
FF Resolution: 480 x 320
Decode Try Time: Short
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