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

   SRM-9 (TB)

   Card Type         Short Range Modem                            
   Chip Set          Unidentified                                 
   I/O Options       25-pin serial port (RS-232),                 
                                                                  
                     Terminal block                               
   Wiring Type       Unshielded twisted pair                      
   Maximum Data Rate 128Kbps (synchronous), 115.2Kbps             
                     (asynchronous)                               
   Data Bus          External                                     

<gopher://bitreich.org/I/th99/t/P-R/54932-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |        Function         |     Label     | Function | Label |
   |------------------------------------------------------------|
   | DTE/DCE serial port |   CN1   | Twisted pair     |   CN2   |
   | (25-pin connector)  |         | connection       |         |
   |                     |         | terminal blocks  |         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                 Setting                 | Label | Position |
   |-----------------------------------------+-------+----------|
   | Pattern (BERT) test activated           | SW1/1 |    On    |
   |-----------------------------------------+-------+----------|
   | Pattern (BERT) test not activated       | SW1/1 |   Off    |
   |-----------------------------------------+-------+----------|
   | Local digital loopback test activated   | SW1/2 |    On    |
   |-----------------------------------------+-------+----------|
   | Local digital loopback test not         | SW1/2 |   Off    |
   | activated                               |       |          |
   |-----------------------------------------+-------+----------|
   | Local analog loopback test activated    | SW1/3 |    On    |
   |-----------------------------------------+-------+----------|
   | Local analog loopback test not          | SW1/3 |   Off    |
   | activated                               |       |          |
   |-----------------------------------------+-------+----------|
   | Remote digital loopback test activated  | SW1/4 |    On    |
   |-----------------------------------------+-------+----------|
   | Remote digital loopback test not        | SW1/4 |   Off    |
   | activated                               |       |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      DIAGNOSTIC LEDS                       |
   |------------------------------------------------------------|
   | LED  |    Color     | Status |          Condition          |
   |------+--------------+--------+-----------------------------|
   |   TD | Unidentified |   On   | Device is transmitting data |
   |------+--------------+--------+-----------------------------|
   |  TD  | Unidentified |  Off   | Device is not transmitting  |
   |      |              |        |            data             |
   |------+--------------+--------+-----------------------------|
   |  RD  | Unidentified |   On   | Device is receiving pulses  |
   |      |              |        |        from network         |
   |------+--------------+--------+-----------------------------|
   |  RD  | Unidentified |  Off   |   Device is not receiving   |
   |      |              |        |     pulses from network     |
   |------+--------------+--------+-----------------------------|
   | RTS  | Unidentified |   On   |     RTS signal is high      |
   |------+--------------+--------+-----------------------------|
   | RTS  | Unidentified |  Off   |      RTS signal is low      |
   |------+--------------+--------+-----------------------------|
   | DCD  | Unidentified |   On   |     DCD signal is high      |
   |------+--------------+--------+-----------------------------|
   | DCD  | Unidentified |  Off   |      DCD signal is low      |
   |------+--------------+--------+-----------------------------|
   | ERR  | Unidentified |   On   | Error detected on received  |
   |      |              |        |    data during BERT test    |
   |------+--------------+--------+-----------------------------|
   | ERR  | Unidentified |  Off   |    Error not detected on    |
   |      |              |        |   received configuration    |
   |      |              |        |         information         |
   |------+--------------+--------+-----------------------------|
   | TST  | Unidentified |   On   |   Device is conducting a    |
   |      |              |        |        loopback test        |
   |------+--------------+--------+-----------------------------|
   | TST  | Unidentified |  Off   | Device is not conducting a  |
   |      |              |        |        loopback test        |
   +------------------------------------------------------------+