RAD DATA COMMUNICATIONS
=======================

   SRM-5AC

   Modem Type               Data (Asynchronous)                   
   Maximum Data Rate        19.2Kbps                              
   Data Bus                 External                              
   Data Modulation Protocol Proprietary                           

<gopher://bitreich.org/I/th99/t/P-R/51515-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |     Purpose      | Location |      Purpose      | Location |
   |------------------+----------+-------------------+----------|
   | RS-232           |   CN1    | Ground            |   GND    |
   |------------------+----------+-------------------+----------|
   | RJ-12/RJ-45      |   CN2    | Transmit positive |   +XMT   |
   |------------------+----------+-------------------+----------|
   | Receive positive |   +RCV   | Transmit negative |   -XMT   |
   |------------------+----------+-------------------+----------|
   | Receive negative |   -RCV   |                   |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                         CD SIGNAL                          |
   |------------------------------------------------------------|
   | Setting                    |              JP1              |
   |----------------------------+-------------------------------|
   |>> Forced high              |       Pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   | Normal                     |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      DCE/DTE SELECTOR                      |
   |------------------------------------------------------------|
   | Setting                       |            SW1             |
   |-------------------------------+----------------------------|
   |>> DCE                         |            Off             |
   |-------------------------------+----------------------------|
   | DTE                           |             On             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   |   LED    |  Color   |  Status  |         Condition         |
   |----------+----------+----------+---------------------------|
   |    CD    |   Red    |    On    |     CD signal is high     |
   |----------+----------+----------+---------------------------|
   |    CD    |   Red    |   Off    |     CD signal is low      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  PRINTER/NORMAL SELECTION                  |
   |------------------------------------------------------------|
   | Setting                       |            SW2             |
   |-------------------------------+----------------------------|
   |>> Normal                      |            Off             |
   |-------------------------------+----------------------------|
   | Printer                       |             On             |
   +------------------------------------------------------------+