I/O Technology - Peripheral Support Board
This was essentially a 2 serial port, 3 parallel port I/O board,
there was a useful work area to modify the communications hardware.
The two serial ports could be sync or async configured using RS232, TTL or
current loop. Besides the 3 parallel ports there was a real time
clock/calendar and three timers. An interrupt controller was also on board.
I do not have a manual for this board. If you would like to share one please
let me know.
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