22
ACK/NAK mode
* You may activate or deactivate
the beeper by using the QR-
coded parameter menu given in
Chapter 4.
Start
Beeps when the QS20H
has read a code.*
Initializes the timer.
CTS High?
No
Yes
Transfers a single
character.
2 seconds elapsed?
Transfers the
last character?
Beeps if an error occurs.
(No transmission possible)
Initializes the timer.
End
Any response
received?
ACK or NAK?
One second
elapsed?
NAK
(for trans-
mission
again)
ACK
(normal end)
Beeps if an error occurs.
(No response signal received)
End
End
No
Yes
No
Yes
No
Yes
No
Yes
