No sorry they can be inverted
Trigger Levels [4]
The three inputs (IP1 to IP3), and the inhibit
input (INH), can be individually programmed as
active high (+ve trigger) or active low (-ve
trigger). An active high input will trigger the
Informa when the voltage present at the input
exceeds 3.5V (maximum is 15V). An active low
input will trigger the Informa when the voltage
is less than 1.0V.
a) Press [4] to change the Trigger levels.
The 4 LED’s show the trigger level of
inputs 1 to 3, and the inhibit input,
respectively. A lit LED shows that the
input is programmed as active high.
b) Press keys 1 to 4 to toggle (switch) the
trigger level of the inputs, between
active high (+ve trigger) and active low
(-ve trigger).
c) Press [PLAY] when finished, or [QUIT]
to ignore any changes.
The Informa automatically resets to top
level of the Engineering controls