# All these transaction terminals are just little modems that feed the info
# and wait for replies. I'm guessing this is just send-expect ASCII strings.
# I'm going to look into this and see about writing my own.
I used to do just this professional: credit card verification and
transaction recording for gas pumps (I worked for Gilbarco in their
software verification lab). The protocol is VERY simple, and when I was
using it (appx 2-3 years ago), the connection was a basic 2400/7E1 type.
But it is basically just an ASCII stream. (vendor ID->ok, <security
stuff> -> ok, cc info -> ok, amount -> ok, goodbye -> ok).
G'day!
-- n i c h o l a s j l e o n
/ elegance through simplicity /
/ good fortune through truth / http://mrnick.binary9.net
/ simplicity is elegant / mailto:nicholas@binary9.net
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