Intermec EasyCoder PF4i - Characterlength; Flowcontrol; Parity

Chapter
6
—
Setting
Up
the
Printer
Character
Length
Thecharacterlengthspecifiesthenumberofbitsthatwilldefinea
character.Eightbitsarerecommended,becausethatoptionallowsmore
specialcharactersandcharactersspeci
fi
cforforeignlanguagestobeused.
Refertothe IntermecFingerprintv8.xx,Programmer’sReferenceManual
formoreinformation.
·7
·8
Parity
Theparitydecideshowthefirmwarewillcheckfortransmissionerrors.
Thereare
fi
veoptions:
·
·
·
·
·
Stop Bits
Thenumberofstopbitsspecifieshowmanybitswilldefinetheendofa
character.Therearetwooptions:
·1
·2
Flow Control
RTS/CTSisaprotocolwherethecommunicationiscontrolledbycur-
rentsthroughseparatelinesinthecablebeingseteithertohighorlow.
Bydefault,thisoptionisdisabled.
RTShighindicatesthatthetransmittingunitisabletoreceivecharacters.
RTSlowindicatesthatthereceivebufferis
fi
lledto75%(seeXON/
XOFF).
CTShighindicatesthattheunittransmittingtheCTSsignalisreadyto
receivedata.CTSlowindicatesthatthereceivebufferisfull(seeXON/
XOFF).Insomecomputerprograms,forexampleMSWindowsTermi-
nal,RTS/CTSisdesignated“Hardware.”
ENQ/ACKisaprotocolwherethecommunicationiscontrolledby
thecontrolcharactersENQ(ASCII05dec.)andACK(ASCII06dec.)
beingtransmittedonthesamelineasthedata.Thesendingunittrans-
mitsENQatregularintervals.IftheresponseACKisnotreceived,the