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			| Features |  |  | 12 bit, 20 us or 10 us analog to digital (A/D) convertor |  |  | 32 single-ended or 16 differential analog inputs |  |  | 8254 timer provides background conversion |  |  | 12 bit, 10 us digital to analog (D/A) convertor |  |  | 2 voltage analog output |  |  | 16 digital inputs |  |  | 16 digital outputs |  | DescriptionThe PA-ST12 and PA-ST12-H are 16 differential/32 single-ended
		input channels of 12 bit 20us (PA-ST12) or 10us (PA-ST12-H)
		A/D and 2 voltage out, 12 bit 10us D/A cards with an 8254
		Timer/Counter on board which generates an accuracy signal for
		A/D background conversion.
		This module also comes with programmable gain control that
		allows the user to program the gain by software.  32 lines of
		digital I/O are also available, as well as, various expansion
		models like S.S.R.  O/P, reed relay O/P, photo-coupled I/P and
		screw terminal boards.
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