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e) ACK/NAK
After data has been transmitted, the scanner expects to receive one of the following
responses from the host:
ACK response
The scanner completes transmission successfully with the good-
read buzzer and returns to the initial state.
NAK response
The scanner sends the data again and waits for the response from
the host.
DC1 response
The scanner returns to waiting for the trigger, if it has a trigger (the
initial state).
None response
The scanner sounds the error buzzer and returns to the initial state.
ACK/NAK timeout can be set as follows using the menu or commands.
ACK/NAK timeout
Indefinitely (default)
100 ms
500 ms
1000 ms
Menu / Command
Figure 15-1: ACK Timing Chart
20
NLB / RLB-1000
Specifications Manual
XI4
XI5
XI6
XI7
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