Parnet Cable.doc

                MAKING A CABLE

    The following connections need to be made on a DB25 cable:

        You are making a cable that connects the two PARALLEL ports
    of your Amiga together.

        CABLE:  Connect D7-D0,SEL,POUT, and BUSY across,
            Connect ACK (FLAG interrupt) to SEL locally:

        (2-9)   D7-D0   ------------    D7-D0
        (12)    POUT    ------------    POUT
        (11)    BUSY    ------------    BUSY       PARALLEL PORT
        (13)    SEL     --+------+--    SEL
        (10)    ACK     -/        \-    ACK
        (18-22) GND     ------------    GND  (18-22)

        Double check the gender for the DB25 connectors you will
    need to connect to your Parallel Port.

    A500/A2000, Parallel port is Female so you need a Male connector
    A1000,  Parallel port is Male so you need a Female connector.


    The easiest thing to do is to buy a premade cable with all 25
    lines passed and DB25 connectors on both ends (Double check the
    gender's that they match before you buy the cable!)  And then rip
    it apart and cut-and-seal those wires which are not supposed to be
    connected.  You also need to bridge ACK to SEL as per the diagram
    above ON BOTH ENDS OF THE CABLE, as shown above.

    ** NEVER PLUG IN AN UNMODIFIED CABLE BETWEEN THE TWO COMPUTERS!

    ** DOUBLE CHECK YOUR CABLE BEFORE INSTALLATION!


    WARNING! INTERFERENCE WITH SERIAL-PORT.

        The RI (Ring Indicate) line on the Amiga's serial port
        uses the SEL line to source a transistor.  This interferes
        with the SEL line which, as you can see, is part of the
        network.

        Be sure that

        (a) either no serial cable is attached or that
        (b) It doesn't connect RI or that
        (c) your modem doesn't connect RI internally.

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