Intermec 9730 Installation Instruction
4. Output transmission settings RS-232
MicroBar 9730 - Installation Manual
43
Typical ENQ / ACK / NAK scenarios
host terminal
ACK
(clears message)
message
(OK)
ENQ
MicroBar
host terminal
message
(not OK)
NAK
ENQ
ACK
(clears message)
repeats message
(OK)
MicroBar