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       # WESTERMO TELEINDUSTRI AB
       
          MD-12
       
          Card Type          Modem                                       
          Chip Set           Unidentified                                
          I/O Options        9-pin serial port (RS-232), terminal blocks 
                             (3)                                         
          Data Modulation    ITU-T V.24/V.28                             
          Protocol           
          Wiring Type        Unshielded or shielded twisted pair         
          Maximum Data Rate  38.4Kbps                                    
          Data Bus           External                                    
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |       Function        | Label |      Function      | Label |
          |-----------------------+-------+--------------------+-------|
          | DCE serial port (9    |  CN1  | Network interface  |  CN3  |
          | pole terminal block)  |       | (4 pole terminal   |       |
          |                       |       | block)             |       |
          |-----------------------+-------+--------------------+-------|
          | AC power connector (3 |  CN2  | 9-pin serial port  |  CN4  |
          | pole terminal block)  |       |                    |       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      CARRIER CONTROL                       |
          |------------------------------------------------------------|
          |              Setting              |  S1/1  | S1/2  | S1/3  |
          |-----------------------------------+--------+-------+-------|
          |       í Carrier forced high       |  Off   |  On   |  Off  |
          |-----------------------------------+--------+-------+-------|
          |     Carrier activated by RTS      |  Off   |  On   |  On   |
          |-----------------------------------+--------+-------+-------|
          |     Carrier activated by DTR      |   On   |  Off  |  Off  |
          |-----------------------------------+--------+-------+-------|
          |  Carrier activated by DTR & RTS   |   On   |  Off  |  On   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CLEAR TO SEND CONTROL                    |
          |------------------------------------------------------------|
          |              Setting              |  S1/4  | S1/5  | S1/6  |
          |-----------------------------------+--------+-------+-------|
          |      í CTS controlled by RTS      |   On   |  Off  |  Off  |
          |-----------------------------------+--------+-------+-------|
          |          CTS forced high          |  Off   |  On   |  Off  |
          |-----------------------------------+--------+-------+-------|
          |          CTS follows DCD          |  Off   |  Off  |  On   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          | LED |    Color     | Status |          Condition           |
          |-----+--------------+--------+------------------------------|
          | PWR | Unidentified |   On   |         Power is on          |
          |-----+--------------+--------+------------------------------|
          | PWR | Unidentified |  Off   |         Power is off         |
          |-----+--------------+--------+------------------------------|
          | RD  | Unidentified |   On   |   Modem is receiving data    |
          |-----+--------------+--------+------------------------------|
          | RD  | Unidentified |  Off   | Modem is not receiving data  |
          |-----+--------------+--------+------------------------------|
          | TD  | Unidentified |   On   |  Modem is transmitting data  |
          |-----+--------------+--------+------------------------------|
          | TD  | Unidentified |  Off   |  Modem is not transmitting   |
          |     |              |        |             data             |
          |-----+--------------+--------+------------------------------|
          | RTS | Unidentified |   On   |      RTS signal is high      |
          |-----+--------------+--------+------------------------------|
          | RTS | Unidentified |  Off   |      RTS signal is low       |
          |-----+--------------+--------+------------------------------|
          | DCD | Unidentified |   On   |     Data carrier present     |
          |-----+--------------+--------+------------------------------|
          | DCD | Unidentified |  Off   |  Data carrier not present.   |
          |     |              |        |  Connection not established  |
          +------------------------------------------------------------+