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                                     

<gopher://bitreich.org/I/th99/t/P-R/54890-1.png>
   

   +------------------------------------------------------------+
   |                        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  |
   |---------------------------------------+-------+------------|
   | i 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   |
   |---------------------------------------+-------+------------|
   | i Remote digital DTE loopback test    | JP14  | Pins 1 & 2 |
   | disabled                              |       |   closed   |
   |---------------------------------------+-------+------------|
   | Remote digital DTE loopback test      | JP14  | Pins 2 & 3 |
   | enabled                               |       |   closed   |
   |---------------------------------------+-------+------------|
   | i Local analog DTE loopback test      | JP15  | Pins 1 & 2 |
   | disabled                              |       |   closed   |
   |---------------------------------------+-------+------------|
   | Local analog DTE loopback test        | JP15  | Pins 2 & 3 |
   | enabled                               |       |   closed   |
   |---------------------------------------+-------+------------|
   | i 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   |
   |---------------------------------------+-------+------------|
   | i Synchronous operation mode enabled  | SW6/1 |     On     |
   |---------------------------------------+-------+------------|
   | Asynchronous operation mode enabled   | SW6/1 |    Off     |
   |---------------------------------------+-------+------------|
   | i 8-bit                               | SW6/2 |     On     |
   |---------------------------------------+-------+------------|
   | 7-bit                                 | SW6/2 |    Off     |
   |---------------------------------------+-------+------------|
   | i Parity enable                       | SW6/3 |     On     |
   |---------------------------------------+-------+------------|
   | Parity disabled                       | SW6/3 |    Off     |
   |---------------------------------------+-------+------------|
   | i Parity even                         | SW6/4 |     On     |
   |---------------------------------------+-------+------------|
   | Parity odd                            | SW6/4 |    Off     |
   |---------------------------------------+-------+------------|
   | i 1 stop bit                          | SW6/5 |     On     |
   |---------------------------------------+-------+------------|
   | 2 stop bits                           | SW6/5 |    Off     |
   |---------------------------------------+-------+------------|
   | i DCD mode enabled                    | SW6/6 |     On     |
   |---------------------------------------+-------+------------|
   | CNT mode enabled                      | SW6/6 |    Off     |
   |---------------------------------------+-------+------------|
   | i 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      |
   |---------------------------+-------------------+------------|
   |        i 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          |
   +------------------------------------------------------------+