please see the map from sbb here:
http://mct.sbb.ch/mct/en/uebersichts...albtax-abo.pdf
on the 2nd page, right bottom is the legend for the gemeinde daycard.
solid red, yellow, black, whilte lines are free.
dotted ones are half fare.
grey no reduction.
you got it for CHF30 ? I suppose from another canton, as here in Zurich it costs chf 42 ??