Rather than software. I would reccomend using a breakout box. I repair ATM
machines for several banking institutions as well as your local convenient store
and my breakout box stays in the tool kit.  This will actually show you the
signals on both sides.   Jameco sells the identical unit I use for about 23.00.
 Good thing about it. it is simple.  plug it in and look at the signals.

Eddie Turner, kc4awz

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