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Thread: Help needed identifying 8-bit ISA CARD ASM-SOLC Adapter 6137397XM

  1. #1

    Default Help needed identifying 8-bit ISA CARD ASM-SOLC Adapter 6137397XM

    Dear all,

    I just got an IBM PC/AT 5170 with one strange 8-bit ISA card in it. The card has a 25-pin male D-Sub connector on the slot cover, which just looks like the RS-232 port on the IBM Asynchronous Communications Adapter. The print on the PCB says: Card ASM-SOLC Adapter. Another stamp says: 6137397XM. In Checkit 3.0 the card is not recognizes as a serial adapter. What else could it be?

    Best Regards

    Jens

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  2. #2
    Join Date
    Mar 2011
    Location
    Atlanta, GA, USA
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    1,590

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    It's literally what it says it is. It is a SDLC adapter (Synchronous Data Link Control). It's a synchronous serial (RS-232) card likely used for connecting to an IBM SNA network.
    "Good engineers keep thick authoritative books on their shelf. Not for their own reference, but to throw at people who ask stupid questions; hoping a small fragment of knowledge will osmotically transfer with each cranial impact." - Me

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