could i install this ps/2 port to my board in order to extend it?
Posted by tutimes67@reddit | vintagecomputing | View on Reddit | 10 comments
on my skillfully drawn "schematics", it appears as the port on the board uses two more pins than the port i have (4 and 6). would those missing pins be a problem?
cazzipropri@reddit
What language is that? Green is the same as Spanish or Italian, Yellow is similar to German, Red and Brown are similar to the Italian word. Is it Romanian?
Scoth42@reddit
I feel like this might be an example of the XY Problem. What's your actual issue and what are you trying to fix with this?
kodabarz@reddit
PS/2 keyboards only require four pins: data, clock, +5V power, and ground. In a conventional wiring diagram, pins 2 and 6 are not connected. In your drawing, it would be pins 4 and 6.
tutimes67@reddit (OP)
same with mice?
kodabarz@reddit
Same with mice. The cables only ever have four wires. All six pins are usually there, but only four are needed.
Do remember that PS/2 devices are not hotswap, so they needed to be connected when turning on the computer.
Low-Charge-8554@reddit
They need to be connected when the computer is OFF.
kodabarz@reddit
Perhaps I didn't express that in the best way. They need to 'already' be connected when turning on the computer.
tes_kitty@reddit
There are some boards that use those unused pins for the mouse signals and the boards come with a splitter that lets you connect mouse and keyboard to a single PS/2 port.
(They should have done that from the beginning... Run both signals to the keyboard and supply a PS/2 port for the mouse on the keyboard)
compu85@reddit
TBH I'd just get an extender cable from fleebay. Then it will just plug in.
csl905@reddit
I might be missing the point here, but wouldn't a simple PS/2 extension cable (available for around $2 on Aliexpress) solve this without soldering and analyzing pinouts?