(TXT) View Source
       
       # RAD DATA COMMUNICATIONS, INC.
       
          SRM-8
       
          Card Type         Modem (synchronous/asynchronous)             
          Chipset           Unidentified                                 
          Maximum Data Rate 19.2Kbps                                     
          Data Bus          Serial                                       
          Data Modulation   Unidentified                                 
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |     Function     | Label |        Function         | Label |
          |------------------+-------+-------------------------+-------|
          | V.24 serial port |  CN1  | Line out (see pinout    |  SC1  |
          |                  |       | below)                  |       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         SC1 PINOUT                         |
          |------------------------------------------------------------|
          |      Function       | Screw |       Function       | Screw |
          |---------------------+-------+----------------------+-------|
          | Receive line        |   1   | Transmit line        |   4   |
          |---------------------+-------+----------------------+-------|
          | Receive line        |   2   | Transmit line        |   5   |
          |---------------------+-------+----------------------+-------|
          | Ground              |   3   |                      |       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                 Setting                 | Label | Position |
          |-----------------------------------------+-------+----------|
          | í SW1 position 3 enters remote digital  |  J1   |  Closed  |
          | loopback test                           |       |          |
          |-----------------------------------------+-------+----------|
          | SW1 position 3 enters has no function   |  J1   |   Open   |
          |-----------------------------------------+-------+----------|
          | í Stop bit shortened by 12.5% in        | SW3/1 |   Off    |
          | asynchronous mode                       |       |          |
          |-----------------------------------------+-------+----------|
          | Stop bit shortened by 25% in            | SW3/1 |    On    |
          | asynchronous mode                       |       |          |
          |-----------------------------------------+-------+----------|
          | í CD signal forced high                 | SW3/4 |   Off    |
          |-----------------------------------------+-------+----------|
          | CD signal follows RTS                   | SW3/4 |    On    |
          |-----------------------------------------+-------+----------|
          | í Pin 18 of CN1 has no function         | SW3/5 |   Off    |
          |-----------------------------------------+-------+----------|
          | Pin 18 of CN1 begins local analog       | SW3/5 |    On    |
          | loopback test                           |       |          |
          |-----------------------------------------+-------+----------|
          | í Pin 21 of CN1 has no function         | SW3/6 |   Off    |
          |-----------------------------------------+-------+----------|
          | Pin 21 of CN1 begins remote digital     | SW3/6 |    On    |
          | loopback test                           |       |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CHARACTER LENGTH SELECTION                 |
          |------------------------------------------------------------|
          |      Setting       |       SW3/2       |       SW3/3       |
          |--------------------+-------------------+-------------------|
          |       8 bits       |        Off        |        Off        |
          |--------------------+-------------------+-------------------|
          |       9 bits       |        Off        |        On         |
          |--------------------+-------------------+-------------------|
          |     í 10 bits      |        On         |        Off        |
          |--------------------+-------------------+-------------------|
          |      11 bits       |        On         |        On         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    TEST MODE SELECTION                     |
          |------------------------------------------------------------|
          |              Setting               |          SW1          |
          |------------------------------------+-----------------------|
          |  Start local analog loopback test  |      Position 1       |
          |------------------------------------+-----------------------|
          |         í Normal operation         |      Position 2       |
          |------------------------------------+-----------------------|
          | Start remote digital loopback test |      Position 3       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    LINE SPEED SELECTION                    |
          |------------------------------------------------------------|
          |           Setting           |             SW2              |
          |-----------------------------+------------------------------|
          |           1200bps           |          Position 7          |
          |-----------------------------+------------------------------|
          |           2400bps           |          Position 6          |
          |-----------------------------+------------------------------|
          |           3600bps           |          Position 5          |
          |-----------------------------+------------------------------|
          |           4800bps           |          Position 4          |
          |-----------------------------+------------------------------|
          |           7200bps           |          Position 3          |
          |-----------------------------+------------------------------|
          |          í 9600bps          |          Position 2          |
          |-----------------------------+------------------------------|
          |          14.4Kbps           |          Position 1          |
          |-----------------------------+------------------------------|
          |          19.2Kbps           |          Position 0          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 RTS TO CTS DELAY SELECTION                 |
          |------------------------------------------------------------|
          |    Setting    |     J2/A     |     J2/B     |     J2/C     |
          |---------------+--------------+--------------+--------------|
          |     0 mS      |     Open     |     Open     |    Closed    |
          |---------------+--------------+--------------+--------------|
          |    í 8 mS     |     Open     |    Closed    |     Open     |
          |---------------+--------------+--------------+--------------|
          |     64 mS     |    Closed    |     Open     |     Open     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              TRANSMIT CLOCK SOURCE SELECTION               |
          |------------------------------------------------------------|
          |        Setting         |  J3/A  |  J3/B  |  J3/C  |  J3/D  |
          |------------------------+--------+--------+--------+--------|
          |   Asynchronous mode    | Closed |  Open  |  Open  |  Open  |
          |------------------------+--------+--------+--------+--------|
          |  Remote clock source   |  Open  | Closed |  Open  |  Open  |
          |------------------------+--------+--------+--------+--------|
          |    í Internal clock    |  Open  |  Open  | Closed |  Open  |
          |         source         |        |        |        |        |
          |------------------------+--------+--------+--------+--------|
          | External clock source  |  Open  |  Open  |  Open  | Closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          |  LED   |  Color   |  Status  |          Condition          |
          |--------+----------+----------+-----------------------------|
          |  LED   |   Red    |    On    |    Modem is in test mode    |
          |--------+----------+----------+-----------------------------|
          |  LED   |   Red    |   Off    |  Modem is not in test mode  |
          +------------------------------------------------------------+