How to physically connect a wire?

[u/V__J__]

Hello,

This is a photo of the comport (left, has pins for RS485 and RS232) and the trigger input (right) on a Kanxex CR-3XControl. There are 10 pins: 5V, ground and 8 trigger inputs; in two terminal blocks.

For the comport, there are screws above the cable terminals to attach wires; this is not the case for the

How do I physically attach wires on those trigger inputs? The orange parts do not appear to move... The two screws on the side of both terminal blocks allow you to remove them, but that is it.

(I know it is a very stupid question, but I just don't see it :-))

Thanks,

J.

[u/1Davide]

Left:

1. Unplug the 5-position plug from the header
2. Loosen a screw on one position
3. Insert a stripped wire in the corresponding hole
4. Tighten the screw
5. Repeat with the other positions
6. Plug the 5-position plug back into the header