3COM CORPORATION
================

   SPORTSTER ISDN 128K (S/T-INTERFACE)

   Card Type         ISDN TA                                      
   Chip Set          Unidentified                                 
   Transfer Rate     64Kbps x 2                                   
   Data Bus          16-bit ISA                                   
   ISDN Protocol     Unidentified                                 
   Switch Type       5ESS, DMS-100, NI-1                          

<gopher://bitreich.org/I/th99/t/0-9/54161-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |        Function        | Label |     Function      | Label |
   |------------------------+-------+-------------------+-------|
   | ISDN S/T interface out |  CN1  | Handset in        |  CN2  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      BASE I/O ADDRESS                      |
   |------------------------------------------------------------|
   |       Setting       |        JP1        |       JP2        |
   |---------------------+-------------------+------------------|
   |>> |      300h       |       Open        |       Open       |
   |---+-----------------+-------------------+------------------|
   |   |      320h       |      Closed       |       Open       |
   |---+-----------------+-------------------+------------------|
   |   |      340h       |       Open        |      Closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   ISDN LINE TERMINATION                    |
   |------------------------------------------------------------|
   |        Setting         |       JP4       |       JP5       |
   |------------------------+-----------------+-----------------|
   |>> |     Terminated     |     Closed      |     Closed      |
   |---+--------------------+-----------------+-----------------|
   |   |   Not terminated   |      Open       |      Open       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                MISCELLANEOUS TECHNICAL NOTE                |
   |------------------------------------------------------------|
   |      The function of the LED is unidentified.              |
   +------------------------------------------------------------+