ADTRAN
======

   NT1 TYPE 400

   Card Type      ISDN T1                                         
   Chip Set       Unidentified                                    
   I/O Options    ST local bus interface via RJ-45 connectors     
                  (2), power                                      
                                                                  
                  U T1 network interface via RJ-45 connector      
   T1 Data Rate   1.544Mbps                                       
   ISDN D-channel X.25                                            
   Protocol       
   Line Coding    2B1Q                                            
   Framing        Unidentified                                    
   Data Bus       External                                        

<gopher://bitreich.org/I/th99/t/A-B/55333-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Function      | Label | Function  | Label |   |   |   |
   |--------------------+-------+-----------+-------+---+---+---|
   | U T1 network       |  CN1  | S/T ISDN  |  CN3  |   |   |   |
   | interface via      |       | local bus |       |   |   |   |
   | (RJ-45)            |       | interface |       |   |   |   |
   |                    |       | (RJ-45)   |       |   |   |   |
   |--------------------+-------+-----------+-------+---+---+---|
   | S/T ISDN local bus |  CN2  |           |       |   |   |   |
   | interface (RJ-45)  |       |           |       |   |   |   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Label |   Position   |
   |-------------------------------------+-------+--------------|
   | i Factory configured - do not alter | SW1/1 | Unidentified |
   |-------------------------------------+-------+--------------|
   | Extended passive bus cinfiguration  | SW1/2 |      On      |
   |-------------------------------------+-------+--------------|
   | Short passive bus configuration     | SW1/2 |     Off      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   LOCAL BUS TERMINATION                    |
   |------------------------------------------------------------|
   |          Function          | SW1/3 | SW1/4 | SW1/5 | SW1/6 |
   |----------------------------+-------+-------+-------+-------|
   | 50 Ohm local bus           |  Off  |  Off  |  On   |  On   |
   | termination enabled        |       |       |       |       |
   |----------------------------+-------+-------+-------+-------|
   | 100 Ohm local bus          |  On   |  On   |  Off  |  Off  |
   | termination enabled        |       |       |       |       |
   |----------------------------+-------+-------+-------+-------|
   | Local bus termination      |  Off  |  Off  |  Off  |  Off  |
   | disabled                   |       |       |       |       |
   +------------------------------------------------------------+

                                  

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   |  LED  |  Color   |      Status       |      Condition      |
   |-------+----------+-------------------+---------------------|
   |  RDY  |  Green   |        On         | Network is ready to |
   |       |          |                   |    place a call     |
   |-------+----------+-------------------+---------------------|
   |  RDY  |  Green   |  Blinking (fast)  |   U interface not   |
   |       |          |                   | ready or performing |
   |       |          |                   |       a test        |
   |-------+----------+-------------------+---------------------|
   |  RDY  |  Green   |  Blinking (slow)  |  S/T interface not  |
   |       |          |                   | ready or performing |
   |       |          |                   |       a test        |
   |-------+----------+-------------------+---------------------|
   |  RDY  |  Green   |        Off        |     Network not     |
   |       |          |                   | functioning or unit |
   |       |          |                   |  is not receiving   |
   |       |          |                   |        power        |
   |-------+----------+-------------------+---------------------|
   |  ERR  |   Red    |        On         |   Error condition   |
   |       |          |                   | detected on network |
   |       |          |                   |    or local bus     |
   |-------+----------+-------------------+---------------------|
   |  ERR  |   Red    |        Off        | Error condition not |
   |       |          |                   |      detected       |
   |-------+----------+-------------------+---------------------|
   |  PWR  |  Green   |        On         |     Power is on     |
   |-------+----------+-------------------+---------------------|
   |  PWR  |  Green   |        Off        |    Power is off     |
   |------------------------------------------------------------|
   | Note: If ERR indicator is illuminated, pulse rate of RDY   |
   | indicator will determine error source. If RDY indicator is |
   | blinking, and ERR indicator is off, then a test is in      |
   | progress.                                                  |
   +------------------------------------------------------------+