(TXT) View Source
       
       # MULTI-TECH SYSTEMS, INC.
       
          MT386SBC/486SLC
       
          Processor    80386SX/CX486SLC                                  
          Processor    25MHz                                             
          Speed        
          Chip Set     UMC                                               
          Max. Onboard 16MB                                              
          DRAM         
          Cache        None                                              
          BIOS         Phoenix                                           
          Dimensions   340mm x 105mm                                     
          I/O Options  Floppy drive interface, IDE interface, parallel   
                       port, serial ports (2), VGA port                  
          NPU Options  80387SX                                           
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | Serial port 1     |   CN1    | Serial port 2    |    P4    |
          |-------------------+----------+------------------+----------|
          | VGA port          |   CN2    | Power LED &      | P5 pins  |
          |                   |          | keylock          |   1-5    |
          |-------------------+----------+------------------+----------|
          | IDE interface LED |   J11    | External switch  | P5 pin 7 |
          |                   |          | reset            |          |
          |-------------------+----------+------------------+----------|
          | Turbo LED         |   J12    | Keyboard inhibit | P5 pin 8 |
          |                   |          | switch           |          |
          |-------------------+----------+------------------+----------|
          | Hardware reset    |   J13    | Speaker          | P5 pins  |
          | switch            |          |                  |   9-10   |
          |-------------------+----------+------------------+----------|
          | IDE interface     |    P1    | Turbo switch     | P5 pins  |
          |                   |          |                  |  11-12   |
          |-------------------+----------+------------------+----------|
          | Floppy drive      |    P2    | Parallel port    |    P8    |
          | interface         |          |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | Pipeline control disabled        |   J2   |    Open    |
          |---+----------------------------------+--------+------------|
          |   | Pipeline control disabled        |   J2   |   Closed   |
          |---+----------------------------------+--------+------------|
          | » | NPU asynchronous with CPU        |   J3   |    Open    |
          |---+----------------------------------+--------+------------|
          |   | NPU synchronous with CPU         |   J3   |   Closed   |
          |---+----------------------------------+--------+------------|
          | » | IDE interface enabled            |   J4   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | IDE interface disabled           |   J4   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Hardware reset when DCD on COM1  |   J5   |   Closed   |
          |   | goes from on to off enabled      |        |            |
          |---+----------------------------------+--------+------------|
          |   | Hardware reset when DCD on COM1  |   J5   |    Open    |
          |   | goes from on to off disabled     |        |            |
          |---+----------------------------------+--------+------------|
          | » | Parallel port unidirectional     |   J7   | pins 2 & 3 |
          |   | (printer)                        |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Parallel port bidirectional      |   J7   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | IRQ9 connected to AT bus         |  J10   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | IRQ9 connected to internal VGA   |  J10   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |      512KB       |    (2) 256K x 9    |        NONE        |
          |------------------+--------------------+--------------------|
          |       1MB        |    (2) 256K x 9    |    (2) 256K x 9    |
          |------------------+--------------------+--------------------|
          |       4MB        |     (2) 1M x 9     |     (2) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       8MB        |     (2) 4M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       16MB       |     (2) 4M x 9     |     (2) 4M x 9     |
          +------------------------------------------------------------+