ADTRAN
======

   TSU 120

   Card Type    T1 DSU/CSU                                        
   Chip Set     Unidentified                                      
   I/O Options  V.35 DTE port, T1 test jack - in, T1 test jack -  
                out, T1 test jack - monitor,                      
                                                                  
                DTE test jack - in, DTE test jack - out, DTE test 
                jack - monitor,                                   
                                                                  
                RJ-48 control ports (2), T1 network interface via 
                RJ-48, power                                      
                                                                  
                DSX-1 DTE interface via RJ-48, Expansion module   
   T1 Data Rate 1.544Mbps                                         
   Line Coding  AMI, B8ZS, RZ, Bipolar                            
   Framing      D4, ESF                                           
   Data Bus     External                                          

<gopher://bitreich.org/I/th99/t/A-B/55338-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function       | Label |      Function       | Label |
   |----------------------+-------+---------------------+-------|
   | T1 network port      |  CN1  | DSX-1 port (RJ-48)  |  CN8  |
   | (RJ-48)              |       |                     |       |
   |----------------------+-------+---------------------+-------|
   | T1 test jack - in    |  CN2  | Control port -      |  CN9  |
   |                      |       | chain in (RJ-48)    |       |
   |----------------------+-------+---------------------+-------|
   | T1 test jack - out   |  CN3  | Control port -      | CN10  |
   |                      |       | chain out (RJ-48)   |       |
   |----------------------+-------+---------------------+-------|
   |   T1 test jack -     |  CN4  | V.35 DTE port       | CN11  |
   |   monitor            |       |                     |       |
   |----------------------+-------+---------------------+-------|
   | DTE test jack - in   |  CN5  | Power               | CN12  |
   |----------------------+-------+---------------------+-------|
   | DTE test jack - out  |  CN6  | Power switch        |  SW1  |
   |----------------------+-------+---------------------+-------|
   |   DTE test jack -    |  CN7  |                     |       |
   |   monitor            |       |                     |       |
   |------------------------------------------------------------|
   | Note:                                                      |
   |                                                            |
   | The optional expansion module may feature a switched 56K   |
   | interface, voice interface, V.35,                          |
   |                                                            |
   | RS-232, or ISDN T1 interface                               |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   | LED  | Color  | Status |             Condition             |
   |------+--------+--------+-----------------------------------|
   | OK1  | Green  |   On   | DSU is operating in normal mode.  |
   |      |        |        |   No errors have been detected    |
   |------+--------+--------+-----------------------------------|
   | OK1  | Green  |  Off   |   DSU is not in normal mode, or   |
   |      |        |        |     errors have been detected     |
   |------+--------+--------+-----------------------------------|
   | TST1 | Yellow |   On   |     DSU is conducting a test      |
   |------+--------+--------+-----------------------------------|
   | TST1 | Yellow |  Off   |   DSU is not conducting a test    |
   |------+--------+--------+-----------------------------------|
   | ALM1 |  Red   |   On   | Alarm condition has been detected |
   |      |        |        |              on DSU               |
   |------+--------+--------+-----------------------------------|
   | ALM1 |  Red   |  Off   |   Alarm condition has not been    |
   |      |        |        |          detected on DSU          |
   |------+--------+--------+-----------------------------------|
   | OK2  | Green  |   On   |   Module is operating in normal   |
   |      |        |        |     mode. No errors have been     |
   |      |        |        |             detected              |
   |------+--------+--------+-----------------------------------|
   | OK2  | Green  |  Off   | Module is not in normal mode, or  |
   |      |        |        |     errors have been detected     |
   |------+--------+--------+-----------------------------------|
   | TST2 | Yellow |   On   |    Module is conducting a test    |
   |------+--------+--------+-----------------------------------|
   | TST2 | Yellow |  Off   |  Module is not conducting a test  |
   |------+--------+--------+-----------------------------------|
   | ALM2 |  Red   |   On   | Alarm condition has been detected |
   |      |        |        |          on option ports          |
   |------+--------+--------+-----------------------------------|
   | ALM2 |  Red   |  Off   |   Alarm condition has not been    |
   |      |        |        |     detected on option ports      |
   |------+--------+--------+-----------------------------------|
   | OK3  | Green  |   On   | CSU is operating in normal mode.  |
   |      |        |        |   No errors have been detected    |
   |------+--------+--------+-----------------------------------|
   | OK3  | Green  |  Off   |   CSU is not in normal mode, or   |
   |      |        |        |     errors have been detected     |
   |------+--------+--------+-----------------------------------|
   | TST3 | Yellow |   On   |     CSU is conducting a test      |
   |------+--------+--------+-----------------------------------|
   | TST3 | Yellow |  Off   |   CSU is not conducting a test    |
   |------+--------+--------+-----------------------------------|
   | ERR  |  Red   |   On   |    Error has been detected on     |
   |      |        |        | network. Errors include: BPV, OOF |
   |      |        |        |              or CRC               |
   |------+--------+--------+-----------------------------------|
   | ERR  |  Red   |  Off   |  Error has not been detected on   |
   |      |        |        |              network              |
   |------+--------+--------+-----------------------------------|
   | ALM3 |  Red   |   On   | Alarm condition has been detected |
   |      |        |        |            on network             |
   |------+--------+--------+-----------------------------------|
   | ALM3 |  Red   |  Off   |   Alarm condition has not been    |
   |      |        |        |        detected on network        |
   +------------------------------------------------------------+