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Thread: What is this? Post Photos of Mystery Items Here (vintage computers only)

  1. #101

    Default ISA Communication card with a TI DSP chip TMS320C30GEL

    I originally posted this on VOGONS in March 2018, when I bought a job lot of three interface cards from an eBayer, who sells electronic testing equipment, but could not identify them. Two of the cards have been identified, but I still have this mystery ISA communication card with a TI DSP chip TMS320C30GEL that is yet to be identified.



    I am new to this forum, but I had been on VOGONS for a while, so I am wondering if anyone here could identify this card?

  2. #102
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    The TI chip is a floating point DSP. The IDT7024 is a 4Kx16 high speed dual-ported static RAM. The Altera chip is probably a CPLD for the ISA bus interface. On the connector side, you have optical fiber (probably 650 nm) transmitter and receiver modules.

    My guess is that this is an OPM (Optical Performance Monitoring) card. At least that's my guess.

  3. #103

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    Thank You Tom for replying... this is one of the only things i have of my fathers (an engineer that worked for military) ... appreciate the info!!

  4. #104
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    Just picked this up for a lot less than the asking. No interior photos available as it was already packed. I googled and googled and could only find a single obscure reference to a 'System 9710' being offered in March 1978 or so. I hedged based on being only somewhat confident it was a computer. Hope I was right.

    The seller referred to it as a "Micro Devices EP-1 System 9710". Anyone heard of it?

    Auction link here.

  5. #105
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    I'm not sure that it's a computer at all. It looks a bit small and has nothing but an edge connector; not even so much as a "reset" button. It'll be interesting to see if it's anything more than a power supply.

  6. #106
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    Quote Originally Posted by Chuck(G) View Post
    I'm not sure that it's a computer at all. It looks a bit small and has nothing but an edge connector; not even so much as a "reset" button. It'll be interesting to see if it's anything more than a power supply.
    I think you are correct. I think it is the electronics box for Micro Computer Devices Selecterm system (on page 31): https://www.thecomputerarchive.com/K...9%20Medium.pdf

  7. #107
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    Quote Originally Posted by falter View Post
    I think you are correct. I think it is the electronics box for Micro Computer Devices Selecterm system (on page 31): https://www.thecomputerarchive.com/K...9%20Medium.pdf
    It may be similar to the main unit in the ESCON Model E-P kit that converts an IBM Selectric to a parallel printer. It may have similar electronics like the main interface shown here: http://vintagecomputer.ca/escon-selectric-kit/

  8. #108
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    I think falter's hit it right on the nose--the model number even matches. Here's the most detailed description that I could find from 1978 Kilobaud. (PDF Page 15). Looks like most of the smarts were in the Selectric base unit.

  9. #109

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    It’s in a box marked SASI-HDC.

    94511ECF-544D-434D-82B7-EF58571C2F1A.jpeg

    Googling SASI suggests it was a predecessor for SCSI. What would this card be for?

  10. #110
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    Quote Originally Posted by jafir View Post
    It’s in a box marked SASI-HDC.

    94511ECF-544D-434D-82B7-EF58571C2F1A.jpeg

    Googling SASI suggests it was a predecessor for SCSI. What would this card be for?
    it is an early OMTI Model 2001
    MFM to SASI controller
    Last edited by Al Kossow; January 18th, 2021 at 07:18 PM.

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