NATIONAL COMPUTERS, LTD. (NCL AMERICA)

NCL DB825

  Data bus:                  16-bit, ISA

  Size:                      Half-length, full-height card

  Hard drive supported:      Two IDE (AT) Interface drives

  Floppy drives supported:   Two 360KB, 720KB, 1.2MB, or 1.44MB drives

[Image]

                              CONNECTIONS

                    Function                           Location

  34-pin control cable connector - floppy drive           J3

  40-pin 3 1/2" IDE(AT) Interface connector               J4

  44-pin 2 1/2" IDE(AT) Interface connector               J5

  4-pin connector - Drive active LED                     JP10

                        USER CONFIGURABLE SETTINGS

               Function                    Location           Setting

  »   Floppy drive DMA Acknowledge            JP1            pins 1 & 2
      is DACK2                                                 closed

      Floppy drive DMA Acknowledge            JP1            pins 2 & 3
      is DACK3                                                 closed

  »   Interrupt Request is IRQ6               JP2            pins 1 & 2
                                                               closed

      Interrupt Request is IRQ10              JP2            pins 2 & 3
                                                               closed

  »   Hard drive Interrupt Request            JP3            pins 1 & 2
      is IRQ14                                                 closed

      Hard drive Interrupt Request            JP3            pins 2 & 3
      is IRQ15                                                 closed

                        USER CONFIGURABLE SETTINGS

               Function                    Location           Setting

  »   Floppy drive DMA Request is             JP4            pins 1 & 2
      DREQ2                                                   closed

      Floppy drive DMA Request is             JP4            pins 2 & 3
      DREQ3                                                   closed

  »   Hard drive port address is              JP6              open
      1F0-1F7h

      Hard drive port address is              JP6             closed
      170-177h

  »   Floppy drive port address is            JP7              open
      3F2-3F7h

      Floppy drive port address is            JP7             closed
      372-377h

  »   Normal operation enabled                JP8              open

      Diagnostic mode enabled                 JP8             closed

  »   I/O Channel Ready signal                JP9              open
      disabled

      I/O Channel Ready signal                JP9             closed
      enabled

  »   BIOS enabled                           JP11             closed

      BIOS disabled                          JP11              open

  »   Primary BIOS mode enabled              JP12             closed

      Co-existing BIOS mode enabled          JP12              open

                               BIOS ADDRESS

         Address               JP5/jumper 1             JP5/jumper 2

  »         C800h                  open                     open

            CC00h                 closed                    open

            D800h                  open                    closed

            DC00h                 closed                   closed