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       # RAD DATA COMMUNICATIONS
       
          ASMI-31 MODEM/X.21
       
          Card Type         Modem                                        
          Chip Set          Unidentified                                 
          I/O Options       AC power connector, 15-pin connector,        
                                                                         
                            Network interface via terminal block and     
                            RJ-45 connector                              
          Wiring Type       RJ-45 shielded twisted pair                  
                                                                         
                            Terminal block shielded twisted pair         
          Maximum Data Rate 128Kbps                                      
          Line Coding       2B1Q                                         
          Data Bus          External                                     
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |      Function       | Label |       Function       | Label |
          |---------------------+-------+----------------------+-------|
          | AC power connector  |  CN1  | Network interface    |  CN4  |
          |                     |       | via RJ-45 connector  |       |
          |---------------------+-------+----------------------+-------|
          | DTE serial port     |  CN2  | Reset push-button    | RESET |
          | (15-pin connector)  |       |                      |       |
          |---------------------+-------+----------------------+-------|
          | Network interface   |  CN3  |                      |       |
          | via terminal block  |       |                      |       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                Setting                | Label |  Position  |
          |---------------------------------------+-------+------------|
          | í Loopback timing mode enabled        |  JP9  | Pins 3 & 4 |
          |                                       |       |   closed   |
          |---------------------------------------+-------+------------|
          | Internal clock mode enabled           |  JP9  | Pins 2 & 3 |
          |                                       |       |   closed   |
          |---------------------------------------+-------+------------|
          | External clock mode enabled           |  JP9  | Pins 1 & 2 |
          |                                       |       |   closed   |
          |---------------------------------------+-------+------------|
          | í Remote digital DTE loopback test    | JP14  | Pins 1 & 2 |
          | disabled                              |       |   closed   |
          |---------------------------------------+-------+------------|
          | Remote digital DTE loopback test      | JP14  | Pins 2 & 3 |
          | enabled                               |       |   closed   |
          |---------------------------------------+-------+------------|
          | í Local analog DTE loopback test      | JP15  | Pins 1 & 2 |
          | disabled                              |       |   closed   |
          |---------------------------------------+-------+------------|
          | Local analog DTE loopback test        | JP15  | Pins 2 & 3 |
          | enabled                               |       |   closed   |
          |---------------------------------------+-------+------------|
          | í Signal ground is connected to the   | JP18  | Pins 2 & 3 |
          | frame ground                          |       |   closed   |
          |---------------------------------------+-------+------------|
          | Signal ground is not connected to the | JP18  | Pins 1 & 2 |
          | frame ground                          |       |   closed   |
          |---------------------------------------+-------+------------|
          | í Synchronous operation mode enabled  | SW6/1 |     On     |
          |---------------------------------------+-------+------------|
          | Asynchronous operation mode enabled   | SW6/1 |    Off     |
          |---------------------------------------+-------+------------|
          | í 8-bit                               | SW6/2 |     On     |
          |---------------------------------------+-------+------------|
          | 7-bit                                 | SW6/2 |    Off     |
          |---------------------------------------+-------+------------|
          | í Parity enable                       | SW6/3 |     On     |
          |---------------------------------------+-------+------------|
          | Parity disabled                       | SW6/3 |    Off     |
          |---------------------------------------+-------+------------|
          | í Parity even                         | SW6/4 |     On     |
          |---------------------------------------+-------+------------|
          | Parity odd                            | SW6/4 |    Off     |
          |---------------------------------------+-------+------------|
          | í 1 stop bit                          | SW6/5 |     On     |
          |---------------------------------------+-------+------------|
          | 2 stop bits                           | SW6/5 |    Off     |
          |---------------------------------------+-------+------------|
          | í DCD mode enabled                    | SW6/6 |     On     |
          |---------------------------------------+-------+------------|
          | CNT mode enabled                      | SW6/6 |    Off     |
          |---------------------------------------+-------+------------|
          | í DSR mode enabled                    | SW6/7 |     On     |
          |---------------------------------------+-------+------------|
          | DTR mode enabled                      | SW6/7 |    Off     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         DATA RATE                          |
          |------------------------------------------------------------|
          |            Setting             |   Mode    |      SW7      |
          |------------------------------------------------------------|
          |        1200bps        |   Sync/async   |         1         |
          |------------------------------------------------------------|
          |          2400bps          |    Sync/async     |     2      |
          |---------------------------+-------------------+------------|
          |          4800bps          |       Sync/async  |     3      |
          |---------------------------+-------------------+------------|
          |          9600bps          |       Sync/async  |     4      |
          |---------------------------+-------------------+------------|
          |         19.2Kbps          |       Sync/async  |     5      |
          |---------------------------+-------------------+------------|
          |         38.4Kbps          |       Sync/async  |     6      |
          |---------------------------+-------------------+------------|
          |         48.0Kbps          |          Sync     |     7      |
          |---------------------------+-------------------+------------|
          |        í 64.0Kbps         |          Sync     |     9      |
          |---------------------------+-------------------+------------|
          |         128.0Kbps         |          Sync     |     A      |
          |---------------------------+-------------------+------------|
          |         57.6Kbps          |         Async     |     C      |
          |---------------------------+-------------------+------------|
          |         115.2Kbps         |         Async     |     D      |
          |---------------------------+-------------------+------------|
          |          16Kbps           |      Unidentified |     E      |
          |---------------------------+-------------------+------------|
          |          32Kbps           |      Unidentified |     F      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          | LED  | Color  |  Status  |            Condition            |
          |------+--------+----------+---------------------------------|
          | PWR  | Green  |    On    |           Power is on           |
          |------+--------+----------+---------------------------------|
          | PWR  | Green  |   Off    |          Power is off           |
          |------+--------+----------+---------------------------------|
          |   TD | Yellow |    On    | Device is transmitting a steady |
          |      |        |          |              space              |
          |------+--------+----------+---------------------------------|
          |   TD | Yellow | Blinking |   Device is transmitting data   |
          |------+--------+----------+---------------------------------|
          |  TD  | Yellow |   Off    | Device is not transmitting data |
          |------+--------+----------+---------------------------------|
          |  RD  | Yellow |    On    |  Device is receiving a steady   |
          |      |        |          |              space              |
          |------+--------+----------+---------------------------------|
          |  RD  | Yellow | Blinking | Device is receiving pulses from |
          |      |        |          |             network             |
          |------+--------+----------+---------------------------------|
          |  RD  | Yellow |   Off    | Device is not receiving pulses  |
          |      |        |          |          from network           |
          |------+--------+----------+---------------------------------|
          | RTS  | Yellow |    On    |       RTS signal is high        |
          |------+--------+----------+---------------------------------|
          | RTS  | Yellow |   Off    |        RTS signal is low        |
          |------+--------+----------+---------------------------------|
          | DCD  | Yellow |    On    |       DCD signal is high        |
          |------+--------+----------+---------------------------------|
          | DCD  | Yellow |   Off    |        DCD signal is low        |
          |------+--------+----------+---------------------------------|
          | LOS  |  Red   |    On    |     Loss of synchronization     |
          |------+--------+----------+---------------------------------|
          | LOS  |  Red   | Blinking | Synchronization not established |
          |------+--------+----------+---------------------------------|
          | LOS  |  Red   |   Off    |       Synchronization OK        |
          |------+--------+----------+---------------------------------|
          | ERR  |  Red   |    On    |   Error detected on received    |
          |      |        |          |    configuration information    |
          |------+--------+----------+---------------------------------|
          | ERR  |  Red   |   Off    | Error not detected on received  |
          |      |        |          |    configuration information    |
          |------+--------+----------+---------------------------------|
          | TST  |  Red   |    On    | Device is conducting a loopback |
          |      |        |          |              test               |
          |------+--------+----------+---------------------------------|
          | TST  |  Red   |   Off    |   Device is not conducting a    |
          |      |        |          |          loopback test          |
          +------------------------------------------------------------+