A1: Reads high and low density
symbols at high resolution in
near and far fields; spends 675
mS attempting to decode the
symbol; large region of interest
that extends beyond the symbol.
B1: Reads high and low density
symbols in near and far fields at
high resolution in both fields;
spends 375 mS attempting to
decode the symbol; large region
of interest that extends beyond
the symbol.
A2: Reads high and low density
symbols in near and far fields at
medium-high resolution in near
field and high resolution in far
field; spends 375 mS attempting
to decode the symbol; region of
interest that extends somewhat
beyond the symbol.
A3: Reads high and low density
symbols at low resolution in near
field and medium-low resolution
in far field; spends 250 mS
attempting to decode the symbol;
region of interest limited to the
symbol and its quiet zone.
B2: Reads high and low density
symbols in near and far fields at
medium-low resolution in near
field and medium-high resolution
in far field; spends 250 mS
attempting to decode the symbol;
region of interest that extends
somewhat beyond the symbol.
B3: Reads high and low density
symbols in near and far fields at
low resolution in both fields;
spends 250 mS attempting to
decode the symbol; small region
of interest limited to the symbol
and its quiet zone. (
Rev 5
hardware
and earlier only.)
Use A1 if you are reading
a variety of symbol sizes
and densities, and you
are more concerned with
decode capability than
with decode speed.
Use A2 if you are reading
a variety of symbol sizes
and densities, and you
require dependable but
moderately fast decodes.
Use A3 if you are reading
a variety of symbol sizes
and densities, but you are
concerned mainly
with
obtaining fast decodes.
Use B1 if you are reading
a variety of symbol sizes
and densities, and you
need reliable, moderately
fast decodes.
Use B2 if you are reading
a variety of symbol sizes
and densities, and you
want a balance of
decode reliability and
decode speed.
Use B3 if you are reading
a variety of symbol sizes
and densities, but you
want the fastest decode
speed available.
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