TTL-Level Digital Input Board for ISA

This product is PC/AT which performs an un-isolating type TTL level input, and an interface board for the compatible machines. This board can be used being able to mount in the expansion slot or I/O expansion unit of the main part of a personal computer, and can be inputted a maximum of 64 points by this one board.

	In a TTL level input, a high-speed response is possible.
	Eight groups and the digital signal of 64 points can be inputted by making eight points into one group.
	Simultaneous assignment of a maximum of 4 levels can do four of 64 input signals as an interruption input.
	The option function other than a general-purpose input function is prepared.