Ariadne Reference

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  The Ariadne is a combination Ethernet and parallel port board. Physically,
  it is a 3/4 length card, with BNC and RJ45 connectors for 10BASE-2 and
  10BASE-T Ethernet connections, and a female DB25 parallel port connector.

  An internal 26-pin header provides a connection for a second parallel port,
  and four LEDs display connection information.

  By default, the Ariadne auto-selects the type of Ethernet media based on
  what is attached. This can be overridden by setting an environment variable
  called Sana2/ariadne0.config to the preferred value (10BASET or 10BASE2).
  For example, to force the Ariadne to use the 10BASE-T connection:

    setenv Sana2/ariadne0.config 10BASET

  Remember that environment variables will only be saved if they are copied
  to the ENVARC: logical device.

  The Ariadne software claims to support up to ten Ariadne boards in one
  Amiga (although which Amiga has this many slots remains unclear). Software
  is also provided to redirect printing to the Ariadne parallel ports.

  Board Layout
   _____________________________________________________________
  |                Parallel Port 2  1234   1      _____         |___
  |                 ############    OOOO   :::   |     |        |
  |     JP1 ..      1               LEDs   LED   |EPROM|        |#
  |     Boot                            Connector|     |        |# DB25
  |                                              |     |        |# Parallel
  |                                              |_____|        |# Port 1
  |                                                             |#
  |                                                             |
  |                                                            #| RJ45
  |                                                            #| 10BASE-T
  |                                                             |_
  |                                                             |_| BNC
  |_____________________________________________________________|   10BASE-2
  |||||||||||||||||||||||||||                                   |

  Jumpers

    JP1: Enable Boot ROM?
      Off: Set to disable autobooting (default).
       On: Set to enable autobooting from an on-board EPROM.

  Connectors

    LED Connector (6-pin header)
      Pin 1: (LED 1) Twisted pair MAU link status
      Pin 2: (LED 2) Transmit status
      Pin 3: +5V
      Pin 4: (LED 3) Collision
      Pin 5: +5V
      Pin 6: (LED 4) Receive status

    Parallel Port 2 (26-pin header)
      Note that these connections are set up for use of a standard 26-pin
      header to a DB25 female mounted on a slot cover. This should be a
      standard part, but check connections before using it.
       Pin 1: *Strobe
       Pin 2: +5V Pull Up (Current limit unknown on Ariadne, normally 10 mA.)
       Pin 3: Data 0
       Pin 4: Unused
       Pin 5: Data 1
       Pin 6: *Reset
       Pin 7: Data 2
       Pin 8: Ground (Do not connect any of these grounds to a shield.)
       Pin 9: Data 3
      Pin 10: Ground
      Pin 11: Data 4
      Pin 12: Ground
      Pin 13: Data 5
      Pin 14: Ground
      Pin 15: Data 6
      Pin 16: Ground
      Pin 17: Data 7
      Pin 18: Ground
      Pin 19: *Acknowledge
      Pin 20: Ground
      Pin 21: Busy
      Pin 22: Ground
      Pin 23: Paper Out
      Pin 24: Ground
      Pin 25: Select
      Pin 26: Unused

    Parallel Port 1 (DB25 Female)
    Parallel Port 2 (DB25 Female when connected)
      Both Ariadne parallel ports have the same pin-out as the standard A4000
      parallel port. See Connector Pin-Outs/Parallel Port Pin-Outs.