CONNECT TECH, INC.
==================

   DFLEX-4/104

   Card Type         Serial                                       
   Chipset           16550                                        
   I/O Options       Serial ports (4)                             
   Data Bus          8-bit PC/104                                 

<gopher://bitreich.org/I/th99/i/C-D/53063-1.png>
   

   +------------------------------------------------------------+
   |                        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       |
   +------------------------------------------------------------+