Datalogic Matrix 120 Product Reference Manual page 73

An anti-disturbance filter, by default, is implemented in software on both inputs.
The value can be changed through the software parameter Debounce Filter. See
the Help On Line page of the Reading Phase step (Inputs) in DL.CODE for further
details on these parameters.
Polarity insensitive inputs assure full functionality even if pins A and B are
exchanged.
NOTE
The connections are indicated in the following diagrams:
The yellow Trigger LED
Trigger corresponds to ON.
Product Reference Guide
CBX100/500
+V
I1A
I1B
-V
(Figure 15
Description
Power Source - External Trigger
External Trigger A (polarity insensitive)
External Trigger B (polarity insensitive)
Power Reference - External Trigger
-, 5) is on when the active state of the External
Inputs
59