NCL AMERICA

NCL 5427

Data bus: 8-bit, ISA

Size: Half-length, full-height card

Hard drives supported: Two MFM ST506/412

Floppy drives supported: None

[Image]

                        CONNECTIONS

                  Function                      Location

  34-pin control cable connector-hard drive       CN1

  20-pin data cable connector-drive 0             CN2

  20-pin data cable connector-drive 1             CN3

  5-pin connector-DC power                        CN4

                        USER CONFIGURABLE SETTINGS

              Function                    Location            Setting

  »   Supports up to 8 heads                 JP1             pins 1 & 2
                                                              closed

      Supports up to 16 heads                JP1             pins 2 & 3
                                                              closed

                BIOS DRIVE TYPE TABLE FOR THE NCL5427 - SW1

  Hd/Cyl    #     1      2      3       4      5      6       7       8

  3/1024    1    on     on      on     off    off    off     off     off

            2    off    off    off     off     on     on     on      on

  4/612     1    on     on     off     off    off    off     off     off

            2    off    off    off     off     on     on     on      on

  6/820     1    on     off     on     off    off    off     off     on

  5/1024    1    on     off     on     off    off    off     off     on

  4/612     1    off    on      on     off    off    off     off     off

            2    off    off    off     off    off     on     on      off

  8/1024    1    off    on     off     off    off    off     off     on

  4/306     1    off    off     on     off    off    off     off     off

            2    off    off    off     off    off    off     on      off

  8/615     1    off    off    off     off    off    off     off     on

  7/1024    1    on     on      on     on     off    off     off     on

  9/1024    1    on     on     off     on     off    off     off     on

  5/695     1    on     on      on     on     off    off     off     off

            2    on     on     off     on      on    off     on      off

  6/1024    1    off    on     off     on     off    off     off     on

  10/823    1    on     on      on     on     off    off     off     off

            2    on     on     off     on     off     on     on      off

  4/1024    1    on     on     off     on     off    off     off     on

  5/820     1    on     on      on     on     off    off     off     on

  7/820     1    on     on     off     on     off    off     off     on

  Note:SW1/switch 8 must be "on" before power-up to enable the drive
  splitting feature.

                       MISCELLANEOUS TECHNICAL NOTES

   This controller has a built-in, low-level format program. To enter the
     program run the DEBUG utility supplied with DOS and at the prompt
                              enter: G=C800:5