Xenon/Granit User Guide 77
• Scanner operation is suspended until 1) a valid escape string is received from 
the host system or 2) the scanner times out.
• Once condition 1 or 2 above has been met, the scanner is ready to scan again, 
and the process repeats.
A time-out occurs if the scanner does not receive a valid escape command within 
10 seconds. A time-out is indicated by an error tone. If a time-out occurs, the oper-
ator should check the host system to understand why a response to the scanner 
was not received.
Host ACK On/Off
Host ACK Timeout
You can set a timeout for the length of time the scanner waits for a valid escape 
command when using Host Acknowledgment Mode. Set the length (in seconds) for 
a timeout by scanning the following bar code, then setting the timeout (from 1-90 
seconds) by scanning digits from the Programming Chart, beginning on page 341, 
then Save. Default = 10.
Host ACK Responses
Command Action
[ESC] a, Double beeps to indicate a successful menu change was made.
[ESC] b, Razz or error tone to indicate a menu change was unsuccessful.
[ESC] 1, The green LED illuminates for 135 milliseconds followed by a pause.
[ESC] 2, The green LED illuminates for 2 seconds followed by a pause.
[ESC] 3, The green LED illuminates for 5 seconds followed by a pause.
[ESC] 4, Emits a beep at a low pitch.
[ESC] 5, Emits a beep at a medium pitch.
[ESC] 6, Emits a beep at a high pitch.