AMERICAN MULTISOURCE, INC.

SM4

 Data bus:                16-bit ISA

 Size:                    Three/quarter-length, full-height card

 Hard drive supported:    Two MFM ST506/412 drives

 Floppy drives            Four 360KB, 720KB, 1.2MB, 1.44MB drives
 supported:



[Image]

                                CONNECTIONS

                    Function                             Location

  34-pin control cable connector - hard drive               J1

  20-pin data cable connector                               J2

  20-pin data cable connector                               J3

  34-pin connector - floppy drive interface                 J4
  (drives 1 & 2)

  4-pin connector - drive active LED                        J5

  34-pin connector - floppy drive interface                 J6
  (drives 3 & 4)

  34-pin connector - floppy drive interface                 J7
  (drives 3 & 4) - external

                        USER CONFIGURABLE SETTINGS

                 Function
                                              Location
                                                               Setting

  »
      Floppy drive interface address
      select primary
                                                 W8
                                                                open


      Floppy drive interface address
      select secondary
                                                 W8
                                                               closed

  »
      Hard drive address is primary
                                                 W11
                                                                open


      Hard drive address is secondary
                                                 W11
                                                               closed

                    HARD DRIVE INTERFACE CONFIGURATION

           Setting                       W5                   W12

  »          Enabled             pins 2 & 3 closed           closed

             Disabled            pins 1 & 2 closed            open

                   FLOPPY DRIVE INTERFACE CONFIGURATION

           Setting
                                         W9
                                                              W10

  »
              Enabled
                                       closed
                                                             closed


             Disabled
                                        open
                                                              open

  Note: The location of W9 is unidentified.