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PICList Thread
'[OT] OCIA protocol'
1999\08\19@231026 by Jim Robertson

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Hi Folks

Does anyone have any pointers to information on the OCIA protocol used by
NCR scales and scanners?

Jim
Regards,

Jim Robertson
NEWFOUND ELECTRONICS
________________________________________
Email: spam_OUTnewfoundTakeThisOuTspampipeline.com.au
http://www.new-elect.com
MPLAB compatible PIC programmers.
________________________________________

1999\08\22@061823 by Thomas Fleckenstein

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Hi Jim,

As far as I remember, the NCR-OCIA differs from other OCIA standards used in
POS systems, like the ones from SNI (Siemens Nixdorf),
which created their own data format.
NCR is using both 8 bit and 9 bit data formats. The interface is based on a
current loop principle with
Optocouplers on both sending and receiving ends. The data format is serial.

Hope this helps.

Best Regards,
Thomas Fleckenstein
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