Opticon OPR 2001 - Manual (Page 24)

Opticon
OPR 2001
Specifications Manual
24
e) ACK/NAK NO RESPONSE
When no response from the host is received within the setting time, the
scanner assumes an ACK response, and returns to the initial state without the
error buzzer. The other actions are the same as ACK/NAK.
Figure 17: ACK/NAK—No response