env Dig Input4 Polarity

1.3.6.1.4.1.476.1.2.1.1.1.2.4.3

The Polarity to be associated with the State variable for Digital Input Number 4. It controls the value returned by the State variable. When Polarity is set to notDefined(3), State will return notInstalled(3). When Polarity is set to activeHigh(1), State will return false(2) if Digital Input Number 4 is being deasserted and return true(1) if Digital Input Number 4 is being asserted. When Polarity is set to activeLow(2), State will return false(2) if Digital Input Number 4 is being asserted and return true(1) if Digital Input Number 4 is being deasserted. Polarity is stored in non-volatile memory.