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       # RAD DATA COMMUNICATIONS
       
          SRM-5TX
       
          Modem Type               Data (asynchronous)                   
          Maximum Data Rate        19.2Kbps                              
          Data Bus                 External                              
          Data Modulation Protocol Proprietary                           
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |       Purpose       | Location |    Purpose     | Location |
          |---------------------+----------+----------------+----------|
          | RS-232              |   CN1    | Ground         |   GND    |
          |---------------------+----------+----------------+----------|
          | RJ-12/RJ-45         |   CN2    | Line           |   LINE   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CD SIGNAL                          |
          |------------------------------------------------------------|
          | Setting                    |              JP1              |
          |----------------------------+-------------------------------|
          | ยป Forced high              |       Pins 2 & 3 closed       |
          |----------------------------+-------------------------------|
          | Normal                     |       Pins 1 & 2 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          |   LED    |  Color   |  Status  |         Condition         |
          |----------+----------+----------+---------------------------|
          |    CD    |   Red    |    On    |     CD signal is high     |
          |----------+----------+----------+---------------------------|
          |    CD    |   Red    |   Off    |     CD signal is low      |
          +------------------------------------------------------------+