ID #1372 What must be taken into account when wiring the query contact with a free@home binary input? Carolina Bachenheimer-Schaefer 14.03.2017 14:23 0 Comments The contact must be wired via a separate line. This should not be done via the second wire pair of the bus line (gelb / white) since the polling voltage can lead to interfering signals on the bus. Tags: free@home, Input