Opticon OPR 3001 - Manual (Page 22)

Opticon
OPR 3001
Specifications Manual
22
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