Prise clavier 5 broches (DIN)
Prise 5 broches femelle DIN 180° du PC (DIN41524)
||Reset on some very old keyboards.
This signal is sent from the keyboard to synchronise the data signal.
Keyboard scan codes are sent from the keyboard to the computer on this
single wire serially.
This signal is rarely used and many keyboards don't even connect it. It
was used to let the computer reset the keyboard. The PS/2 design from IBM
even abandonned it from it's new connector.
This is a simple 5 volts signal for giving power to the keyboard.
This is a common ground signal used as a return path for data and is a
reference to logical 0.