ARCO COMPUTER PRODUCTS

ACD-ROM

Data Bus                32-bit VESA Local Bus
Card Size               Three-quarter length, half-height card
Hard Drives supported   Four IDE (AT) drives
Floppy drives supported None
RAID levels supported   Two 360KB, 720KB, 1.2MB, 1.44MB or 2.88MB drives

[Image]

                                CONNECTIONS

       Function           Location          Function           Location

  40-pin primary             J1        25-pin parallel            P2
  IDE(AT) connector                    port - external

  40-pin secondary           J2        34-pin cable               P3
  IDE(AT) connector                    connector - floppy
                                       drive

  2-pin connector -         LED1       9-pin serial port 1        P4
  primary drive active                 - external
  LED

  2-pin connector -         LED2       10-pin serial port         P5
  mirror drive active                  1 - internal
  LED

                        USER CONFIGURABLE SETTINGS

               Function                      Label           Position

  »   IDE(AT) interface enabled          JP1/pins 5 & 6        Open

      IDE(AT) interface disabled         JP1/pins 5 & 6       Closed

  »   IDE(AT) IRQ 14 select                   JP2           Pins 1 & 2
                                                              closed

      IDE(AT) IRQ 15 select                   JP2           Pins 3 & 4
                                                              closed

  »   Parallel port IRQ 7 select              JP5           Pins 1 & 2
                                                              closed

      Parallel port IRQ 5 select              JP5           Pins 3 & 4
                                                              closed

  »   Factory configured - do not            JP10            Reserved
      alter

                 IRQ AND SERIAL PORT ADDRESS SELECTION

       Port              IRQ         JP6/pins 1 & 2    JP6/pins 3 & 4

   COM1 (3F8h)            4              Closed             Open

   COM2 (2F8h)            3               Open             Closed

                    BIOS SEGMENT ADDRESS CONFIGURATION

   Segment Address        JP3/1        JP3/2        JP3/3        JP3/4

  »     C800h-CBFFh      Closed        Open        Closed       Closed

        CC00h-CEFFh      Closed        Open         Open        Closed

        D000h-D3FFh       Open        Closed       Closed       Closed

        D400h-D7EEh       Open        Closed        Open        Closed

        D800h-DBFFh       Open         Open        Closed       Closed

        DC00h-DEFFh       Open         Open         Open        Closed

         Disabled         Open         Open         Open         Open

                        INTERNAL REGISTER SELECTION

         Setting              JP1/pins 1 & 2           JP1/pins 3 & 4

  Appian Chip AD4, AD8,           Closed                    Open
     ADC use internal
        register

  Appian Chip Dr, B8, BC           Open                     Open
           use

    internal register

                           DMA CHANNEL SELECTION

           Channel                                JP4

                1                       Pins 2 & 4, 3 & 5 closed

                3                       Pins 1 & 3, 4 & 6 closed

  »            None                               Open