Symbol LS 4208 - Page 100

6-12
LS
4208
Product
Reference
Guide
·
·
·
RTS/CTS
Option
1
:
When
RTS/CTS
Option
1
is
selected,
the
scanner
asserts
RTS
before
transmitting
and
ignores
the
state
of
CTS.
The
scanner
de-asserts
RTS
when
the
transmission
is
complete.
RTS/CTS Option 2 : When Option 2 is selected, RTS is always high or low (user-programmed logic level). However, the
scanner
waits
for
CTS
to
be
asserted
before
transmitting
data.
If
CTS
is
not
asserted
within
Host
Serial
Response
Time-out,
the
scanner
issues
an
error
indication
and
discards
the
data.
RTS/CTS Option 3 : When Option 3 is selected, the scanner asserts RTS prior to any data transmission, regardless of the
state
of
CTS.
The
scanner
waits
up
to
Host
Serial
Response
Time-out
for
CTS
to
be
asserted.
If
CTS
is
not
asserted
during
this
time,
the
scanner
issues
an
error
indication
and
discards
the
data.
The
scanner
de-asserts
RTS
when
transmission
is
complete.
*
None
Standard
RTS/CTS
RTS/CTS
Option
1
RTS/CTS
Option
2
RTS/CTS
Option
3