NCL AMERICA

NCL 537B

  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 IDE(AT) Interface connector                      J4

  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 is IRQ14           JP3            pins 1 & 2
                                                               closed

      Hard drive Interrupt is IRQ15           JP3            pins 2 & 3
                                                               closed

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

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

                        USER CONFIGURABLE SETTINGS

               Function                    Location           Setting

  »   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

                 MISCELLANEOUS TECHNICAL NOTES

  Trace must be cut to change Jumpers JP1, JP2, JP3, and JP4.