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From: terry@spcvxb.spc.edu (Terry Kennedy, Operations Mgr.)
Subject: Re: Help identify MicroVAX II boards
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Organization: St. Peter's College, US
Date: Sat, 30 Apr 1994 06:13:12 GMT
Message-ID: <1994Apr30.021312.1@spcvxb.spc.edu>
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> One says QD2110702 REV A, and has 2 20 pin, 1 34 pin, and 1 10 pin
> connector.

  MFM or ESDI, emulation unknown.

> The other says QU3210701 REV B, and has 1 60 pin, and 2 26 pin
> connectors.

  That's QD32. SMD interface (2 drives), MSCP (DU) interface. Works with drives
up to the CDC Sabre 9720-736, but not the bigger ones (it can't handle ultra-
high-speed SMD data rates - the QD33 is used for that).

> The next one is made by Distributed Logic Corp.
> On one side it says DQ656 REV C, and the back says 153076 REV B.
> It has 1 34 pin, 2 20 pin, and 1 10 pin connector, and a Z80 CPU...
> This one is a quad height board.

  ESDI with MSCP emulation as I recall.

> It says DT2651-60Hz, and has 2 16 pin, 1 10 pin, and 1 26 pin connector.
> It has 512K memory, and is a quad height board.

  Data Translation is big on A/D style stuff. Could be A/D, D/A, high-speed
parallel sampling, etc.

	Terry Kennedy		  Operations Manager, Academic Computing
	terry@spcvxa.spc.edu	  St. Peter's College, Jersey City, NJ USA
        +1 201 915 9381 (voice)   +1 201 435-3662 (FAX)