The machine is not mine, I borrowed one from Lino Lampers the main IBM collector (post 1980) in the country.
| IBM Personal Computer RT | ||
|---|---|---|
| Keyboard/Mouse ports |  |
Very weird connectors. The actual pins are standard 0.1" pins for both keyboard and mouse, but the shape of the holes made connecting foolproof. An improvement to the DIN-connectors used for the original PC/PC XT and PC/AT, but not yet the standard of PS/2. The mouse is the left port, the keyboard right. |
| Internals |  |
A bit dirty, but the construction is clear. The keyboard is left, the mouse right. |
| Back |  |
The mouse interior. A complete HD6303A01XOF processor (derived from the 6801) and a propriatairy protocol.
IBM RT mouse
Part No OOF2383
As seen into the plug (female)
___________
| |
|| 1 3 5 ||
| 2 4 6 |
|_________|
plug wire J1 function
1 (green) 5 = signal ground.
2 (blue) 1 = Transmit to device.
3 (orange) 4 = +12 Volts
4 (yellow) 3 = -12 Volts
5 (brown) 6 = +5 Volts
6 (red) 2 = Receive from device.
(black) 7 = protective ground
|
Generic links:
Last updated: 2010-01-30