CTC UNION TECHNOLOGIES CO., LTD.
================================

   IC485 IP-2

   Card Type   Current Loop Converter                             
   I/O Options RS-232 via DB25 connector, RS-485 via RJ-45        
               connector                                          
   Data Bus    External                                           

<gopher://bitreich.org/I/th99/i/C-D/55154-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |        Function         | Label |     Function     | Label |
   |-------------------------+-------+------------------+-------|
   | RS-232 via DB-25        |  CN1  | RS-485 via RJ-45 |  CN2  |
   | connector               |       | connector        |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                Function                 | Label | Position |
   |-----------------------------------------+-------+----------|
   | Unit configured for half-duplex         |  SW1  |    On    |
   | operation                               |       |          |
   |-----------------------------------------+-------+----------|
   | Unit configured for full-duplex         |  SW1  |   Off    |
   | operation                               |       |          |
   |-----------------------------------------+-------+----------|
   | Unit configured for DCE operation       |  SW2  |    On    |
   |-----------------------------------------+-------+----------|
   | Unit configured for DTE operation       |  SW2  |   Off    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   |  LED  |  Color  |  Status  |           Condition           |
   |-------+---------+----------+-------------------------------|
   |  RD   |   Red   |    On    |    Unit is receiving data     |
   |-------+---------+----------+-------------------------------|
   |  RD   |   Red   |   Off    |  Unit is not receiving data   |
   |-------+---------+----------+-------------------------------|
   |  TD   |   Red   |    On    |   Unit is transmitting data   |
   |-------+---------+----------+-------------------------------|
   |  TD   |   Red   |   Off    | Unit is not transmitting data |
   +------------------------------------------------------------+