RAD DATA COMMUNICATIONS
=======================

   AMCD-T1 (X.21)

   Card Type        T1 CSU/DSU                                    
   Chip Set         Unidentified                                  
   I/O Options      AC power connector, 15-pin connector (X.21),  
                                                                  
                    9-pin serial ports (2 RS-232), T1 network     
                    interface (RJ-48)                             
   Wiring Type      RJ-48 100ohm shielded twisted pair            
   T1 Transfer Rate 1.544Mbps                                     
   T1 Protocol      AMI, B8ZS, B7ZS                               
   Frame Type       ESF                                           
   Data Bus         External                                      

<gopher://bitreich.org/I/th99/t/P-R/54897-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Function      | Label |       Function        | Label |
   |--------------------+-------+-----------------------+-------|
   | AC power connector |  CN1  | Network port via      |  CN4  |
   |                    |       | RJ-48 connector       |       |
   |--------------------+-------+-----------------------+-------|
   | DTE serial port 1  |  CN2  | DCE serial port 2     |  CN5  |
   |--------------------+-------+-----------------------+-------|
   | 15-pin data port   |  CN3  | Power switch          |  SW2  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                Setting                | Label |  Position  |
   |---------------------------------------+-------+------------|
   |>> | Watchdog timer enabled            |  JP6  | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Watchdog timer disabled           |  JP6  | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Signal ground is connected to the | JP16  | Pins 2 & 3 |
   |   | frame ground                      |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Signal ground is not connected to | JP16  | Pins 1 & 2 |
   |   | the frame ground                  |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | User password enabled             | S1/1  |    Off     |
   |---+-----------------------------------+-------+------------|
   |>> | Default password enabled.         | S1/1  |     On     |
   |   | Password=AMCD                     |       |            |
   |---+-----------------------------------+-------+------------|
   |>> | Loads user-selected parameters    | S1/2  |    Off     |
   |   | from NVRAM on power-up            |       |            |
   |---+-----------------------------------+-------+------------|
   |   | Loads default parameters stored   | S1/2  |     On     |
   |   | in its EPROM on power-up          |       |            |
   |---+-----------------------------------+-------+------------|
   |>> | Factory configured - do not alter | S1/3  |    Off     |
   |---+-----------------------------------+-------+------------|
   |>> | Factory configured - do not alter | S1/4  |    Off     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   |   LED    |    Color     | Status |        Condition        |
   |----------+--------------+--------+-------------------------|
   |     TD   | Unidentified |   On   | DSU/CSU is transmitting |
   |          |              |        |          data           |
   |----------+--------------+--------+-------------------------|
   |    TD    | Unidentified |  Off   |     DSU/CSU is not      |
   |          |              |        |    transmitting data    |
   |----------+--------------+--------+-------------------------|
   |    RD    | Unidentified |   On   |  DSU/CSU is receiving   |
   |          |              |        |   pulses from network   |
   |----------+--------------+--------+-------------------------|
   |    RD    | Unidentified |  Off   |     DSU/CSU is not      |
   |          |              |        |  receiving pulses from  |
   |          |              |        |         network         |
   |----------+--------------+--------+-------------------------|
   |   RED    | Unidentified |   On   | DSU/CSU is detecting a  |
   |          |              |        | red alarm condition on  |
   |          |              |        |       T1 network        |
   |----------+--------------+--------+-------------------------|
   |   RED    | Unidentified |  Off   |     DSU/CSU is not      |
   |          |              |        |  detecting a red alarm  |
   |          |              |        | condition on T1 network |
   |----------+--------------+--------+-------------------------|
   |   YEL    | Unidentified |   On   | DSU/CSU is detecting a  |
   |          |              |        | yellow alarm condition  |
   |          |              |        |      on T1 network      |
   |----------+--------------+--------+-------------------------|
   |   YEL    | Unidentified |  Off   |     DSU/CSU is not      |
   |          |              |        |   detecting a yellow    |
   |          |              |        |  alarm condition on T1  |
   |          |              |        |         network         |
   |----------+--------------+--------+-------------------------|
   |   ALM    | Unidentified |   On   | Alarms are being stored |
   |          |              |        |     in alarm buffer     |
   |----------+--------------+--------+-------------------------|
   |   ALM    | Unidentified |  Off   | No alarms are in alarm  |
   |          |              |        |         buffer          |
   |----------+--------------+--------+-------------------------|
   |      TST | Unidentified |   On   |  Loopback test active   |
   |----------+--------------+--------+-------------------------|
   |   TST    | Unidentified |  Off   |    Loopback test not    |
   |          |              |        |         running         |
   +------------------------------------------------------------+