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ACK/NAK mode
No
NAK
(for trans-
mission
again)
Start
Beeps when the QS20P-A
has read a code.
Initializes the timer.
CTS High?
Yes
Transfers a single
character.
Transfers the
last character?
Yes
Initializes the timer.
Any response
received?
Yes
ACK or NAK?
ACK
(normal end)
End
*
* You may enable or disable the
beeper and the CTS control by
using the QR-coded parameter
menu given in Chapter 7.
*
No
Beeps if an error occurs.
(No transmission possible)
No
Beeps if an error occurs.
(No response signal received)
21
2 seconds elapsed?
Yes
End
One second
elapsed?
Yes
End
No
No
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