UNIDENTIFIED

WA3-16 DISK CONTROLLER

Data Bus                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

  4-pin drive active LED      J1       34-pin control cable        J4
                                       connector - hard drive

  20-pin data cable           J2       34-pin cable connector      J5
  connector - drive 2                  - floppy drive

  20-pin data cable           J3
  connector - drive 1

                        USER CONFIGURABLE SETTINGS

                   Setting                       Label        Position

  »   Write precompensation is 125ns              J6            Open

      Write precompensation is 187ns              J6           Closed

  »   Standard floppy drives connected            J7            Open

      Multi-speed floppy drives connected         J7           Closed

                        BASE I/O ADDRESS SELECTION

                 Setting                                E1

  »                Primary                   Pins 2 & 3, 5 & 6 closed

                  Secondary                  Pins 1 & 2, 4 & 5 closed