NCR 74 OFX (7874) - Codabar Tone; Codabar Tone Frequency; Codabar Tone Length

5-38 Chapter 5: Programming
Codabar Check Digit
TheCodabarCheckDigitparameterpermitscontrolofCodabarcheckdigit
requirement.ScantheappropriateHextag(Hex1toHex0)toenableordisablethe
checkdigit.ThedefaultisHex0—DisableCodabarcheckdigit.
Codabar Check Digit Transmission
TheCodabarCheckDigitTransmissionparameterselectswhethertosendthecheck
digittothehostterminal.ScantheHex0tagtodisablethisoption,ortheHex1tagto
enablethisoption.
Codabar Tone Length
TheCodabarToneLengthparameterpermitsyoutosetthelengthoftheCodabar
tone.SetthisparameterbyscanningtheappropriateHextag(Hex0toHexF).Each
Hextagisincrementedby15milliseconds.Forexample,Hex0=0ms,Hex1=15ms,
Hex
2=30ms,Hex3=45ms,andsoforth.ThedefaultCodabarToneLengthis75ms
(Hex5).
Codabar Tone Frequency
ThisparameterpermitsyoutosetthefrequencyoftheInterleaved2of5tone.Setthis
parameterbyscanningtheappropriateHextag(Hex0 toHex7).
Hex Tag Frequency in Hertz
Hex0 702Hz
Hex1 781Hz
Hex2 868Hz
Hex3 961Hz
Hex4 1071Hz
Hex5 1187Hz
Hex6 570Hz
Hex7 633Hz
Note: ThedefaultCodabartonefrequencyis1071Hertz(Hex4).
Codabar Tone
ThisparameterpermitsyoutoenableordisabletheCodabartone.ScanHex0to
disablethetone(default)orHex1toenableit.Ifdisabled,theCodabartoneisunder
controloftheUPCtonecontrol(generalgoodreadtone).