ADAPTEC, INC.

ACB-2310, ACB-2312

Data bus:                16-bit, ISA
Size:                    Full-length, full-height card
Hard drives supported:   Two MFM ST506
Floppy drives supported: ACB-2312:Two 360KB, 720KB, 1.2MB, or 1.44MB

                         ACB-2310:None

[Image]

                                CONNECTIONS

                     Function                             Location

  32-pin control cable connector-floppy drive                J1
  (ACB-2312 only)

  20-pin data cable connector-drive 1                        J3

  20-pin data cable connector-drive 0                        J4

  34-pin control cable connector-hard drive                  J5

  4-pin connector-drive active LED                           J6

                         USER CONFIGURABLE JUMPERS

               Function                    Location           Setting

  »   Zero wait state disabled              JP9 - 1             open

      Zero wait state enabled               JP9 - 1            closed

  »   Step rate is 16 sec and               JP9 - 2             open
      recalibrate to 0

      Step rate is 35 sec and               JP9 - 2            closed
      recalibrate to 0 minus 1

  »   Not used                              JP9 - 3             open

  »   Serial monitor mode disabled          JP9 - 4             open

      Serial monitor mode enabled           JP9 - 4            closed

  »   Normal operation                      JP9 - 5             open

      Self diagnostics enabled              JP9 - 5            closed

  »   Factory configured - do not           JP9 - 6             open
      alter

  »   Floppy drive address 3F0-3F7h           J10               open

      Floppy drive address 370-377h           J10            pins 1 & 2
                                                               closed

  »   Hard drive address 1F0-1F7h             J11               open

      Hard drive address 170-177h             J11            pins 1 & 2
                                                               closed