A16v3 low voltage inputs

[Michaelmur]

You need to remove the EOL resistors entirely, a dry-contact input can only have two states, either open-circuit (open) or short-circuit (closed).  The EOL resistors are putting a voltage across the input that shouldn't be there.

I think I'm having the same problem...Been working at this for days.. 
I bought the KC868-A16 because I have about 10 LD2410 sensors that I wanted to connect. The LD2410 has an OUT pin that outputs 3.x volts when someone is detected, and LOW when they are not.  The 1-8, 9-16 pins are all registering about 10v and don't react to the LD2410's 3.3v output. 

Do I need to attach 16 relays to close the input pins?

thanks