SGI Dials & Buttons and no P/S

Hi; The usual pinout from the CPU to buttons is CPU 2,3,5 to Buttons 3,2,7 respectively. (9 pin) The power is 5 volts 850 ma with the center pin negative. (3mm circular plug) The cable from the buttons to the dials, i don't know. You only need power To the buttons box, the buttons to dials cable has a power wire. Some dials come with the cable as a pigtail. Note, the jack screws (posts) that the cable screws go into are metric. You might want to re-tap them to English 4-40 so most cable connectors will fit. The interface to this uses some kind of Unix GLUT. It is not defined down to the parameter block that goes out to the boxes. You will probably have to hack that. If you know anyone with the parameter block or protocol, please post. I believe the buttons is some kind of 32 bit mask setup. Good luck