
HEDAKA

HED-821A

Data Bus                8/16 bit ISA
Card Size               Full height, three-quarters length
Hard Drives Supported   Two ST506/412(MFM) devices
Floppy Drives Supported Two 360KB, 720KB, 1.2MB, or 1.44MB drives

[Image]

                                CONNECTIONS

         Function           Label            Function             Label

  20-pin data cable           J1       34-pin control cable        U4
  connector - drive 0                  connector - hard drive

  20-pin data cable           J2       34-pin hard drive           U13
  connector - drive 1                  control cable

  4-pin drive active LED      J3

                        USER CONFIGURABLE SETTINGS

                  Setting                       Label        Position

     Card uses primary hard drive address       W2            Open

      Card uses secondary hard drive             W2           Closed
      address

     Card uses primary floppy address           W3            Open

      Card uses secondary floppy address         W3           Closed

                      FLOPPY CONTROLLER CONFIGURATION

           Setting                     W1                     W4

            Enabled                 Closed                 Closed

             Disabled                 Open                   Open

