(TXT) View Source
       
       # AMERICAN MULTISOURCE, INC.
       
          SM4
       
           Data bus:            16-bit ISA                               
       
           Size:                Three/quarter-length, full-height card   
       
           Hard drive           Two MFM ST506/412 drives                 
           supported:           
       
           Floppy drives        Four 360KB, 720KB, 1.2MB, 1.44MB drives  
           supported:           
       
           
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        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    |    W8    |  open   |
          |   | select primary                    |          |         |
          |---+-----------------------------------+----------+---------|
          |   | Floppy drive interface address    |    W8    | closed  |
          |   | select secondary                  |          |         |
          |---+-----------------------------------+----------+---------|
          | » | 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.                  |
          +------------------------------------------------------------+