Characterlength; Parity; Flowcontrol - Intermec EasyCoder PF4i User Manual

Chapter 6—Setting Up the Printer
Character Length
Thecharacterlengthspecifiesthenumberofbitsthatwilldefinea
character.Eightbitsarerecommended,becausethatoptionallowsmore
specialcharactersandcharactersspecificforforeignlanguagestobeused.
Refertothe IntermecFingerprintv8.xx,Programmer'sReferenceManual
formoreinformation.
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·8

Parity

Theparitydecideshowthefirmwarewillcheckfortransmissionerrors.
Therearefiveoptions:
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·
·
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Stop Bits
Thenumberofstopbitsspecifieshowmanybitswilldefinetheendofa
character.Therearetwooptions:
·1
·2
Flow Control
RTS/CTSisaprotocolwherethecommunicationiscontrolledbycur-
rentsthroughseparatelinesinthecablebeingseteithertohighorlow.
Bydefault,thisoptionisdisabled.
RTShighindicatesthatthetransmittingunitisabletoreceivecharacters.
RTSlowindicatesthatthereceivebufferisfilledto75%(seeXON/
XOFF).
CTShighindicatesthattheunittransmittingtheCTSsignalisreadyto
receivedata.CTSlowindicatesthatthereceivebufferisfull(seeXON/
XOFF).Insomecomputerprograms,forexampleMSWindowsTermi-
nal,RTS/CTSisdesignated"Hardware."
ENQ/ACKisaprotocolwherethecommunicationiscontrolledby
thecontrolcharactersENQ(ASCII05dec.)andACK(ASCII06dec.)
beingtransmittedonthesamelineasthedata.Thesendingunittrans-
mitsENQatregularintervals.IftheresponseACKisnotreceived,the