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       # ADC KENTROX
       
          DATASMART MODEL 72681
       
          Card Type           DSU                                        
          Chip Set            Unidentified                               
          I/O Options         AC power, RJ-45 DCE port, V.35 DTE port    
                                                                         
                              network interface via RJ-48 connector      
          DDS Transfer Rate   64Kbps                                     
          Line Coding         AMI                                        
          Data Bus            External                                   
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |       Function        | Label |      Function      | Label |
          |-----------------------+-------+--------------------+-------|
          | Network interface     |  CN1  | V.35 DTE port      |  CN3  |
          | (RJ-48 connector)     |       |                    |       |
          |-----------------------+-------+--------------------+-------|
          | DCE port (RJ-45       |  CN2  | AC power connector |  CN4  |
          | connector)            |       |                    |       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          | LED  |    Color     |  Status  |         Condition         |
          |------+--------------+----------+---------------------------|
          | PWR  |    Green     |    On    |  Power is on and passed   |
          |      |              |          |   self diagnostic test    |
          |------+--------------+----------+---------------------------|
          | PWR  |    Green     | Blinking |     User is logged in     |
          |------+--------------+----------+---------------------------|
          | PWR  |    Green     |   Off    |       Power is off        |
          |------+--------------+----------+---------------------------|
          | FAIL |     Red      |    On    |     Unit failed self      |
          |      |              |          |      diagnostic test      |
          |------+--------------+----------+---------------------------|
          | FAIL |     Red      | Blinking |     Software is being     |
          |      |              |          |        downloaded         |
          |------+--------------+----------+---------------------------|
          | FAIL |     Red      |   Off    |     Unit passed self      |
          |      |              |          |      diagnostic test      |
          |------+--------------+----------+---------------------------|
          | ALM  |     Red      |    On    |  LOS, OOF, or DDS alarm   |
          |      |              |          |   condition detected on   |
          |      |              |          |          network          |
          |------+--------------+----------+---------------------------|
          | ALM  |     Red      |   Off    |  LOS, OOF, or DDS alarm   |
          |      |              |          | condition not detected on |
          |      |              |          |          network          |
          |------+--------------+----------+---------------------------|
          | DATA |    Green     |    On    |     Unit is ready to      |
          |      |              |          | transmit/receive data on  |
          |      |              |          |     network interface     |
          |------+--------------+----------+---------------------------|
          | DATA |    Green     |   Off    |    Alarm condition on     |
          |      |              |          |   network is preventing   |
          |      |              |          |       data exchange       |
          |------+--------------+----------+---------------------------|
          | TEST |    Yellow    |    On    |   Unit is conducting a    |
          |      |              |          |       loopback test       |
          |------+--------------+----------+---------------------------|
          | TEST |    Yellow    |   Off    | Unit is not conducting a  |
          |      |              |          |       loopback test       |
          |------+--------------+----------+---------------------------|
          | CTS  |    Yellow    |    On    | CTS signal is high. Unit  |
          |      |              |          |  ready to exchange data   |
          |      |              |          |       with the DTE        |
          |------+--------------+----------+---------------------------|
          | CTS  |    Yellow    |   Off    |     CTS signal is low     |
          |------+--------------+----------+---------------------------|
          | RTS  |    Yellow    |    On    |    RTS signal is high     |
          |------+--------------+----------+---------------------------|
          | RTS  |    Yellow    |   Off    |     CTS signal is low     |
          |------+--------------+----------+---------------------------|
          | FRL  | Unidentified |   Off    |     Frame relay link      |
          |      |              |          | indicator; non-functional |
          |      |              |          |     in current model      |
          +------------------------------------------------------------+