Analog inputs           Analog out      Digital outputs             Dig-Inp.
                                                                           
     +  -  +  -  +  -  +  -  G   TP   G      G  G                           RS
     1  1  2  2  3  3  4  4  D  1  2  D      D  D  A  B  C  D  E  F  G  H  1  2

     x  x  x  x  x  x  x  x  x  x  x  x      x  x  x  x  x  x  x  x  x  x  x  x