• Amiga serial ports

    From Andy Ball@1:2320/100 to Jeff Bowman on Mon Mar 10 19:57:04 2008
    Hello,

    Here's a wiring arrangement Amiga PC
    that should work for SLIP or ~~~~~~ ~~~~~
    PPP between Amiga 25 pin and FG 1
    PC 9 pin serial ports. It is
    an ordinary DTE-to-DTE "null TXD 2 ----\/---- 3 TXD
    modem" cable that would also RXD 3 <---/\---> 2 RXD
    let you log into the PC from
    the Amiga if you were running RTS 4 ----\/---- 7 RTS
    unix on the PC, or let you CTS 5 <---/\---> 8 CTS
    log into the Amiga if it's
    running BBS software that DTR 20 ----\/---- 4 DTR
    supports a direct connection. DSR 6 <-+-/\-+-> 6 DSR
    I've a vague recollection DCD 8 <-' `-> 1 DCD
    that the Amiga could be
    persuaded to dump information from its serial port in the event of a crash and I wouldn't be surprised if AmigaDOS could redirect its console to/from the serial port.

    Power supply pins (stay away from these) follow. These pin- outs are straight from the web, so check for yourself before using them, or any pins other than the eight shown above. Use good screened/shielded untwisted cable and connect the screen to pin one (frame ground) at the Amiga end only.

    A1000 Other Amigas

    14 -5V 50mA max 9 +12V 20mA max
    21 +5V 10 -12V 20mA max
    23 +12V 20mA max

    Hope this helps,
    - Andy Ball.

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