UNIDENTIFIED
============

   2400BU MODEM

   Card Type                Modem (asynchronous)                  
   Chip Set                 Unidentified                          
   Maximum Data Rate        2400bps                               
   Data Bus                 8-bit ISA                             
   Data Modulation Protocol Bell 103/212A                         
                                                                  
                            ITU-T V.21, V.22, V.22bis             

<gopher://bitreich.org/I/th99/t/U-Z/51917-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |        Function        |  Label   |   Function   |  Label  |
   |------------------------------------------------------------|
   | Line in                     |    CN1     | Line out | CN2  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    SERIAL PORT ADDRESS                     |
   |------------------------------------------------------------|
   |      Setting       |       SW1/1       |       SW1/2       |
   |--------------------+-------------------+-------------------|
   |    COM1 (3F8h)     |        On         |        On         |
   |--------------------+-------------------+-------------------|
   |    COM2 (2F8h)     |        Off        |        On         |
   |--------------------+-------------------+-------------------|
   |    COM3 (3E8h)     |        On         |        Off        |
   |--------------------+-------------------+-------------------|
   |    COM4 (2E8h)     |        Off        |        Off        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                         INTERRUPT                          |
   |------------------------------------------------------------|
   |      Setting       |       SW2/1       |       SW2/2       |
   |--------------------+-------------------+-------------------|
   |         2          |        Off        |        Off        |
   |--------------------+-------------------+-------------------|
   |         3          |        On         |        Off        |
   |--------------------+-------------------+-------------------|
   |         4          |        Off        |        On         |
   |--------------------+-------------------+-------------------|
   |         5          |        Off        |        Off        |
   +------------------------------------------------------------+

                     Proprietary AT Command Set

           See document 1916 for a full command summary.