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       # CONNECT TECH, INC.
       
          DFLEX-4/104
       
          Card Type         Serial                                       
          Chipset           16550                                        
          I/O Options       Serial ports (4)                             
          Data Bus          8-bit PC/104                                 
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |      Function       | Label |       Function       | Label |
          |---------------------+-------+----------------------+-------|
          | RS-232, RS-422,     |  CN1  | DC power in (see     |  CN5  |
          | RS-485, or current  |       | pinout below)        |       |
          | loop serial port 2  |       |                      |       |
          |---------------------+-------+----------------------+-------|
          | RS-232, RS-422,     |  CN2  | Serial interface     |  SL1  |
          | RS-485, or current  |       | module for ports 1 & |       |
          | loop serial port 4  |       | 2                    |       |
          |---------------------+-------+----------------------+-------|
          | RS-232, RS-422,     |  CN3  | Serial interface     |  SL2  |
          | RS-485, or current  |       | module for ports 3 & |       |
          | loop serial port 3  |       | 4                    |       |
          |---------------------+-------+----------------------+-------|
          | RS-232, RS-422,     |  CN4  |                      |       |
          | RS-485, or current  |       |                      |       |
          | loop serial port 1  |       |                      |       |
          |------------------------------------------------------------|
          |      Note:Standard serial ports are provided on an adapter |
          |      cable.                                                |
          |                                                            |
          |      The type of serial port is determined by the module   |
          |      installed in SL1 and SL2.                             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CN5 PINOUT                         |
          |------------------------------------------------------------|
          |     Function      | Pin |          Function          | Pin |
          |-------------------+-----+----------------------------+-----|
          | Ground            |  1  | -5V DC power in (not used) |  5  |
          |-------------------+-----+----------------------------+-----|
          | +5V DC power in   |  2  | -12V DC power in           |  6  |
          |-------------------+-----+----------------------------+-----|
          | Not used          |  3  | Ground                     |  7  |
          |-------------------+-----+----------------------------+-----|
          | +12V DC power in  |  4  | +5V DC power in            |  8  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                Setting                | Label |  Position  |
          |---------------------------------------+-------+------------|
          | » | Factory configured - do not alter |  JP1  | Pins 1 & 2 |
          |   |                                   |       |   closed   |
          |---+-----------------------------------+-------+------------|
          | » | Factory configured - do not alter |  JP1  | Pins 3 & 4 |
          |   |                                   |       |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               SERIAL PORT ADDRESS SELECTION                |
          |------------------------------------------------------------|
          |    Port 1    | Port 2  | Port 3  | Port 4  |      JP1      |
          |--------------+---------+---------+---------+---------------|
          | » |   200h   |  208h   |  210h   |  218h   | Pins 21 & 22, |
          |   |          |         |         |         | 23 & 24, 25 & |
          |   |          |         |         |         |   26 closed   |
          |---+----------+---------+---------+---------+---------------|
          |   |   240h   |  248h   |  250h   |  258h   | Pins 23 & 24, |
          |   |          |         |         |         |    25 & 26    |
          |   |          |         |         |         |    closed     |
          |---+----------+---------+---------+---------+---------------|
          |   |   280h   |  288h   |  290h   |  298h   | Pins 21 & 22, |
          |   |          |         |         |         |    25 & 26    |
          |   |          |         |         |         |    closed     |
          |---+----------+---------+---------+---------+---------------|
          |   |   2C0h   |  2C8h   |  2D0h   |  2D8h   | Pins 25 & 26  |
          |   |          |         |         |         |    closed     |
          |---+----------+---------+---------+---------+---------------|
          |   |   3F8h   |  2F8h   |  3E8h   |  2E8h   | Pins 21 & 22, |
          |   | (COM1:)  | (COM2:) | (COM3:) | (COM4:) |    23 & 24    |
          |   |          |         |         |         |    closed     |
          |---+----------+---------+---------+---------+---------------|
          |   |   2B0h   |  2B8h   |  2C0h   |  2C8h   | Pins 23 & 24  |
          |   |          |         |         |         |    closed     |
          |---+----------+---------+---------+---------+---------------|
          |   |   290h   |  298h   |  2A0h   |  2A8h   | Pins 21 & 22  |
          |   |          |         |         |         |    closed     |
          |---+----------+---------+---------+---------+---------------|
          |   |   190h   |  198h   |  1A0h   |  1A8h   | Pins 21 & 22, |
          |   |          |         |         |         | 23 & 24, 25 & |
          |   |          |         |         |         |    26 open    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    INTERRUPT SELECTION                     |
          |------------------------------------------------------------|
          |          Setting           |              JP1              |
          |----------------------------+-------------------------------|
          |   |        IR/FONT>        |      Pins 13 & 15 closed      |
          |---+------------------------+-------------------------------|
          |   |          IRQ3          |      Pins 11 & 13 closed      |
          |---+------------------------+-------------------------------|
          | » |          IRQ4          |       Pins 7 & 9 closed       |
          |---+------------------------+-------------------------------|
          |   |          IRQ5          |       Pins 5 & 7 closed       |
          +------------------------------------------------------------+