
EVEREX SYSTEMS, INC.

EV-390

  Data bus:                  8-bit, ISA

  Size:                      Full-length, full-height card

  Hard drive supported:      Two MFM ST506/412 drives

  Floppy drives supported:   Four 360KB drives

[Image]

                               CONNECTIONS

                     Function                             Location

  34-pin control cable connector - hard drive                J1

  20-pin data cable connector - drive 1                      J2

  20-pin data cable connector - drive 2                      J3

  37-pin external drive connector                            J4

  34-pin control cable connector - floppy drive 1            J5

  34-pin control cable connector - floppy drive 0            J6

                        USER CONFIGURABLE SETTINGS

               Function                    Location           Setting

     Floppy drives enabled                   W10              Closed

      Floppy drives disabled                  W10               Open

     Factory configured - do not        SW1/jumper 5           N/A
      alter

     Factory configured - do not        SW1/jumper 6           N/A
      alter

     Factory configured - do not        SW1/jumper 7           N/A
      alter

     Factory configured - do not        SW1/jumper 8           N/A
      alter

                 3.92A/3.93 EPROM CHIP DRIVE FORMATS - SW1

  Capacity    Heads   Cylinders   Drive 1    Drive 2

                                  Jumper 3   Jumper 4    Jumper    Jumper
                                                           1         2

    10MB       4         306        Open       Open      Open      Open

   10.7MB      2         615       Closed      Open     Closed     Open

   21.4MB      4         615        Open      Closed     Open     Closed

   31.9MB      5         733       Closed     Closed    Closed    Closed

   42.5MB      5         977       Closed     Closed    Closed    Closed

                    3.94 EPROM CHIP DRIVE FORMATS - SW1

  Capacity    Heads   Cylinders   Drive 1    Drive 2

                                  Jumper 3   Jumper 4    Jumper    Jumper
                                                           1         2

    10MB       4         306        Open       Open      Open      Open

    42MB       8         615       Closed      Open     Closed     Open

   21.4MB      4         615        Open      Closed     Open     Closed

   42.8MB      6         820       Closed     Closed    Closed    Closed

                    3.95 EPROM CHIP DRIVE FORMATS - SW1

  Capacity    Heads   Cylinders   Drive 1    Drive 2

                                  Jumper 3   Jumper 4    Jumper    Jumper
                                                           1         2

   80.2MB      9        1024        Open       Open      Open      Open

    42MB       8         615       Closed      Open     Closed     Open

   21.4MB      4         615        Open      Closed     Open     Closed

   42.8MB      6         820       Closed     Closed    Closed    Closed

                    3.96 EPROM CHIP DRIVE FORMATS - SW1

  Capacity    Heads   Cylinders   Drive 1    Drive 2

                                  Jumper 3   Jumper 4    Jumper    Jumper
                                                           1         2

   44.5MB      5        1024        Open       Open      Open      Open

   71.3MB      8        1024       Closed      Open     Closed     Open

   21.4MB      4         615        Open      Closed     Open     Closed

   31.9MB      5         733       Closed     Closed    Closed    Closed

                    3.97 EPROM CHIP DRIVE FORMATS - SW1

  Capacity    Heads   Cylinders   Drive 1    Drive 2

                                  Jumper 3   Jumper 4    Jumper    Jumper
                                                           1         2

   42.2MB      6         809        Open       Open      Open      Open

   10.7MB      2         615       Closed      Open     Closed     Open

   21.4MB      4         615        Open      Closed     Open     Closed

   31.9MB      5         733       Closed     Closed    Closed    Closed

   42.5MB      5         977       Closed     Closed    Closed    Closed

