Datalogic Scanning MAGELLAN 8500 - Manual (Page 204)

6-98 Magellan ® 8500 Scanner
RS-232 ACK NAK Error Handling — continued
Remember to cover any unused bar codes on this and the facing page to
ensure that the scanner reads only the bar code you intend to scan.
RS-232 ACK NAK ERROR HANDLING = ASSUME ACK
RS-232 ACK NAK ERROR HANDLING = ASSUME NAK