
Quadrus EZ Reader User’s Manual A-21
Appendices
Communication Protocol Commands
Protocol Command
(Mnemonic displayed on
Microscan menu)
Control Characters
(Entered in menu or
serial command)
Hex
Code
Effect of Command
RES ^D 04
Reset
REQ ^E 05
Request
EOT ^D 04
Reset
STX ^B 02
Start of Text
ETX ^C 03
End of Text
ACK ^F 06
Acknowledge
NAK ^U 15
Negative Acknowledge
XON ^Q 11
Begin Transmission
XOFF ^S 13
Stop Transmission
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