The two red 5v wires connected to a single 5v pin should be OK.
The two black ground wires connected to a single ground pin should also be OK.
So maybe I don’t have it. I thought there would only be one black and one red on the same connector. What do you mean about the two 5v and two grounds?
As seen in the picture below (click to view full-size), the GGG cable connects two red wires (X- and Y-axis 5v) to one female Dupont pin and two black wires (X- and Y-axis ground) to one female Dupont pin.
- Those two pins are shown in a single 1x2 Dupont housing.
- Pull the ground pin out of that housing and attach it to one of the ground pins on your I-Pac Ult. I/O (two Red Boards==>two ground wires on one pin)
- Connect the 5v pin and housing to one of the 5v pins on your I-Pac Ult. I/O (two Red Boards==>two 5v wires on one pin)
Yes. ANY non-isolated ground will properly bleed the static charge to ground
Dumb question incoming:
I’m using a flat screen TV, but can I just use one of the screws for the flat plate I top mounted the trackball on that is just run through the wood of the CP?
Or do I need to get a literal metal bracket and mount that o the wood and screw it into that?
Wood is an insuator -- you need an electrical path from the trackball's big green ground wires/ring terminal (back left corner) through conductive metal (wire, terminals, screws, metal brackets, etc)
all the way to any of the four ground options I listed above.
In plumbing terms, think of ground as a drain that carries water to the sewer.
If you use a bucket instead of a drain to catch water from a faucet, the bucket will eventually overflow and cause a mess.
If the trackball mount plate on wood (bucket) isn't grounded (connected to a drain), the static charge (water) can build up enough to cause a static discharge that can damage the I-Pac.
Scott