• Nothing yet on RETAIN Re: Voltage Regulator on 36/38 Workstation Emulat

    From Louis Ohland@21:1/5 to IBMMuseum on Tue Nov 9 10:39:55 2021
    Searched for Multi-Protocol and MultiProtocol, only issues so far is
    using the wrong I/O location. Nothing hardware. Yet.

    On 11/9/2021 10:13, IBMMuseum wrote:
    So, we have documentation of the bit stream, the protocols,
    but I'm not seeing any circuit-level stuff. Could an adapter
    capable of SDLC do 5250 / 3270 / 36/38 communications?

    The "Remote 5250 Emulation Program" communicates with a mid-range host with an SLDC adapter (or in the case of a microchannel system, the Multi-Protocol Adapter/A") - emulating the terminal and 5294/5394/5494 link. The 3270 stuff will come in time, I'm
    focusing on the mid-range level right now because I have an available host. Do you remember any content on the Multi-Protocol Adapter/A before? - there may be some EC notes on whether a 'ZM1' chip is present or removed on the adapter.


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