UNIDENTIFIED

I/O PLUS

Card Type                 Multi I/O card
Chip Set                  Unidentified
Maximum Onboard Memory    Unidentified
I/O Options               Serial ports (2), Parallel port, Apple II game
                          port (2), PC game port
Data Bus                  8-bit ISA
Card Size                 Half length, half height

[Image]

                                CONNECTIONS

           Function              Label          Function           Label

  Serial port 1                   J1       Apple II game port 1     J5

  Serial port 2 (DTE              J2       Apple II game port 2     J6
  configuration)

  Serial port 2 (DCE              J3       PC game port             J7
  configuration)

  Parallel port                   J4

                  USER CONFIGURABLE SETTINGS

       Function            Label             Position

  Game port enabled        JP2/G              Closed

  Game port disabled       JP2/G               Open

           PARALLEL PORT ADDRESS SELECTION

     Setting            Label           Position

  LPT1 enabled         JP2/P1            Closed

  LPT1 disabled        JP2/P1             Open

  LPT 2 enabled        JP2/P2            Closed

  LPT 2 disabled       JP2/P2             Open

         SERIAL PORT 1 ADDRESS SELECTION

     Setting          Label           Position

  COM1 enabled        JP2/C1           Closed

  COM1 disabled       JP2/C1            Open

        SERIAL PORT 1 INTERRUPT SELECTION

       IRQ            Label           Position

  IRQ4 enabled        JP1/4            Closed

  IRQ4 disabled       JP1/4             Open

                    SERIAL PORT 2 SETTINGS (S - OPTION)

           IRQ                     Label                 Position

  IRQ3 enabled                    JP1/3S                  Closed

  IRQ3 disabled                   JP1/3S                   Open

  COM2 enabled                    JP2/S2                  Closed

  COM2 disabled                   JP2/S2                   Open

  Note: These options are only used when the board was received as an
  option S.

        PARALLEL PORT INTERRUPT SELECTION

       IRQ            Label           Position

  IRQ7 enabled        JP1/7            Closed

  IRQ7 disabled       JP1/7             Open

  Note: LPT is only on Rev. D and up boards.

                       MISCELLANEOUS TECHNICAL NOTES

  Note: To use the Apple II joystick(s) IC 746505 must be installed at
  U1. This IC is not required when using an IBM-type joystick.