ULTRASTOR CORPORATION

ULTRA15C

Data bus: 16-bit, PC/AT

Size: Half-length, full-height card

Hard drives supported: Two IDE (AT) Interface drives

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

[Image]

                                CONNECTIONS

                     Function                             Location

  34-pin control cable connector-floppy drive                J1

  4-pin connector-drive active LED                           J6

  40-pin IDE (AT) Interface control cable                   JP23
  connector

                        USER CONFIGURABLE SETTINGS

               Function                     Location           Setting

      Supports a third floppy on         JP11/jumper 1         closed
      single twisted cable (DS4)

      Supports a third floppy on         JP11/jumper 1          open
      double twisted cable (DS2)

  »   Hard drive port address is         JP11/jumper 2          open
      1F0-1F7h

      Hard drive port address is         JP11/jumper 2         closed
      170-177h

  »   Floppy drive enabled               JP11/jumper 3         closed

      Floppy drive disabled              JP11/jumper 3          open

  »   Floppy drive port address is       JP11/jumper 4          open
      3F0-3F7h

      Floppy drive port address is       JP11/jumper 4         closed
      370-377h

  »   Single speed floppy drive          JP11/jumper 5          open
      supported

      Dual speed floppy drive            JP11/jumper 5         closed
      supported

  »   Floppy drive precomp. is           JP11/jumper 6          open
      scaled by data rate:

      500KHz=125ns, 300KHz=208ns,
      250KHz=250ns

      Floppy drive precomp. is 125ns     JP11/jumper 6         closed

  »   Chassis ground connection               JP16              open

  »   Hard drive interrupt is IRQ14           JP21            pins 2 & 3
                                                               closed

      Hard drive interrupt is IRQ15           JP21            pins 1 & 2
                                                               closed

                               BIOS ADDRESS

      Address         JP10/jumper 1     JP10/jumper 2     JP10/jumper 3

        Disabled          open              open               open

  »      C800h            open              open              closed

         CC00h            open             closed              open

         D000h            open             closed             closed

         D400h           closed             open               open

         D800h           closed             open              closed

         DC00h           closed            closed              open

        Disabled         closed            closed             closed

                       MISCELLANEOUS TECHNICAL NOTES

  Both SIMM's must be of the same size (256K, 1MB, or 4MB) and must be
  rated at 100ns or less. Reserved jumper settings are as follows:
  JP4/jumpers 1-4 are reserved and must be left "open". JP24 is reserved
  and must be left "open". JP27 is reserved and must remain as is. JP22
  and JP26 are factory reserved and the defaults are as follows:

  JP22/jumpers 1 & 2, 5 & 6, and 10 & 11 should be "open", jumpers 3 & 4,
  7 & 9 should be "closed." JP26/jumpers 2 through `6 should be left
  "open", jumpers 1, 7 through 9 should be left "closed"