Does that require a keyboard between the 8x4 unit and a computer?
No.
- You can use the keyboard alone. It has 32 keys which can be programmed in 4 layers each, which amounts to (as one key will have to be used for switching layers) 31x4=124 different characters (or chains of characters or commands).
- You can use it connected with another Tipro keyboard using a small cable (which is contained in the unit and either end of which has to be plugged onto the PCB of one of the boards). That small flat cable is so short that it requires that both keyboards are side by side, ideally joined through a dedicated plastic part.
- You can use it chained with any other PS/2 keyboard. In that case, it is the 8x4 unit which is connected between the other keyboard and the computer. The PS/2 connector of the "normal" keyboard is plugged into the corresponding plug of the Tipro unit, the Tipro unit itself being connected with the computer through a dedicated Tipro 8-pin to PS/2 cable (if you don't have one, you can make one yourself without particular skills as described a few postings ago). This configuration is the one used to program the Tipro keyboard.
The programming software (named ChangeMe) can be downloaded for free from Tipro's website.
kbdfr, aka the Tiproman :lol: