
NCL AMERICA

NCL5127

Data bus: 8-bit, ISA

Size: Half-length, full-height card

Hard Drives Supported: Two MFM ST506/412 drives

Floppy Drives Supported: None

[Image]

                        CONNECTIONS

  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

     BIOS enabled                            JP1            pins 1 & 2
                                                              closed

      BIOS disabled                           JP1            pins 2 & 3
                                                              closed

     Factory configured - do not             JP4            pins 2 & 3
      alter                                                   closed

     Head select is 8 or less                JP6            pins 1 & 2
                                                              closed

      Head select is up to 16                 JP6            pins 2 & 3
                                                              closed

                       DRIVE TABLE FOR NCL-5127 BIOS

   Drive      Heads      Cylinders      Drive      Heads      Cylinders
  Type #                               Type #

     0          7           699           8          6           640

     1          6           612           9          5           733

     2          4           640          10          7           733

     3          4           612          11          5           830

     4          2           612          12          7           830

     5          2           306          13         10           830

     6          4           320          14         15           918

     7          4           306          15          5           977

  Note:Types 10-15 are supported by Virtual Split only

                        DRIVE 0 CONFIGURATION TABLE

  #    SW1/1    SW1/2    SW1/3    SW1/4    SW1/5   SW1/6   SW1/7   SW1/8

  0    closed   closed   closed   open     open    open    open    closed

  1    closed   closed   open     open     open    open    open     open

  2    closed   open     closed   open     open    open    open     open

  3    closed   open     open     open     open    open    open     open

  4    open     closed   closed   open     open    open    open     open

  5    open     closed   open     open     open    open    open     open

  6    open     open     closed   open     open    open    open     open

  7    open     open     open     open     open    open    open     open

  8    closed   closed   closed   closed   open    open    open     open

  9    closed   closed   open     closed   open    open    open     open

  10   closed   open     closed   closed   open    open    open    closed

  11   closed   open     open     closed   open    open    open    closed

  12   open     closed   closed   closed   open    open    open    closed

  13   open     closed   open     closed   open    open    open    closed

  14   open     open     closed   closed   open    open    open    closed

  15   open     open     open     closed   open    open    open    closed

                        DRIVE 1 CONFIGURATION TABLE

  #   SW1/1   SW1/2    SW1/3   SW1/4    SW1/5    SW1/6     SW1/7    SW1/8

  1   open    open     open    open     closed   closed    open     open

  2   open    open     open    open     closed    open     closed   open

  3   open    open     open    open     closed    open     open     open

  4   open    open     open    open      open    closed    closed   open

  5   open    open     open    open      open    closed    open     open

  6   open    open     open    open      open     open     closed   open

  7   open    open     open    open      open     open     open     open

  8   open    open     open    closed   closed   closed    closed   open

  9   open    open     open    closed   closed   closed    open     open

