foc.us Go Flow - X is Anode, Y is Cathode

X is the anode.    Y is the cathode.

X is the anode.Y is the cathode. X is the anode. Y is the cathode. X is the anode. Y is the cathode.

They are not labelled +ve and -ve because when connected to  foc.us v2 the polarity is software controlled.