PARADYNE CORPORATION
====================

   COMSPHERE 3550

   Card Type        DSU                                           
   Chip Set         Unidentified                                  
   I/O Options      CC/DC via RJ-11 connector, digital network    
                    interface via RJ-48,                          
                                                                  
                    analog network interface via RJ-45, power     
                    jack, DTE ports (2)                           
   Maximum Transfer 64Kbps                                        
   Rate             
   Data Modulation  V.32bis                                       
   Protocol         
   Wiring Type      RJ-48 T1                                      
   Data Bus         External                                      

<gopher://bitreich.org/I/th99/t/P-R/54845-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function        | Label |      Function      | Label |
   |-----------------------+-------+--------------------+-------|
   | Power Jack            |  CN1  | CC in/DC out via   |  CN4  |
   |                       |       | RJ-11 connector    |       |
   |-----------------------+-------+--------------------+-------|
   | DDS network interface |  CN2  | DTE port (V.35     |  CN5  |
   | via RJ-48 connector   |       | connector)         |       |
   |-----------------------+-------+--------------------+-------|
   | DBM network interface |  CN3  | DTE port (25-pin   |  CN6  |
   | via RJ-45 connector   |       | serial connector)  |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                 Setting                 | Label | Position |
   |-----------------------------------------+-------+----------|
   |>> | Permissive transmit output level of | S1/1  |    On    |
   |   | -9dBm                               |       |          |
   |---+-------------------------------------+-------+----------|
   |   | Programmable transmit output level  | S1/1  |   Off    |
   |   | between -12dBm and 0dBm             |       |          |
   |---+-------------------------------------+-------+----------|
   |>> | Frame ground connected to signal    | S1/2  |   Off    |
   |   | ground through 100ohm resistor      |       |          |
   |---+-------------------------------------+-------+----------|
   |   | Frame ground connected to signal    | S1/2  |    On    |
   |   | ground                              |       |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   | LED  |  Color   |  Status  |           Condition           |
   |------+----------+----------+-------------------------------|
   |  OK  |  Green   |    On    |        DSU power is on        |
   |------+----------+----------+-------------------------------|
   |  OK  |   Green  | Blinking |  DSU is receiving a message   |
   |      |          |          |    from NetWare Management    |
   |      |          |          |            System             |
   |------+----------+----------+-------------------------------|
   |  OK  |   Green  |   Off    | DSU power is off or detecting |
   |      |          |          |       a system failure        |
   |------+----------+----------+-------------------------------|
   | ALM  |   Red    | Blinking |   Out-of-service or out-of    |
   |      |          |   slow   | -frame messages received from |
   |      |          |          |            network            |
   |------+----------+----------+-------------------------------|
   | ALM  |   Red    | Blinking |   DSU not receiving signals   |
   |      |          |   fast   |         from network          |
   |------+----------+----------+-------------------------------|
   | TST  |  Yellow  |    On    |    DSU is executing a test    |
   |------+----------+----------+-------------------------------|
   | TST  |   Yellow |   Off    |  DSU is not executing a test  |
   |------+----------+----------+-------------------------------|
   | TST  |  Yellow  | Blinking |  DSU is setting up or taking  |
   |      |          |          |          down a test          |
   |------+----------+----------+-------------------------------|
   | Dial |  Yellow  | Blinking | Call established in progress  |
   |      |          |   fast   |                               |
   |------+----------+----------+-------------------------------|
   | Dial |   Yellow | Blinking |  Call established in standby  |
   |      |          |   slow   |             mode              |
   |------+----------+----------+-------------------------------|
   | Dial |   Yellow |    On    |  Backup call established and  |
   |      |          |          |            active             |
   |------+----------+----------+-------------------------------|
   | Dial |   Yellow |   Off    |     Call not established      |
   |------+----------+----------+-------------------------------|
   | TXD  |  Green   |    On    | Receiving all zeros from the  |
   |      |          |          |              DTE              |
   |------+----------+----------+-------------------------------|
   | TXD  |  Green   |   Off    |  Receiving all ones from the  |
   |      |          |          |              DTE              |
   |------+----------+----------+-------------------------------|
   | TXD  |  Green   | Blinking |   Data is being transferred   |
   |------+----------+----------+-------------------------------|
   | RXD  |  Green   |    On    |  Transmitting all zeros from  |
   |      |          |          |            the DTE            |
   |------+----------+----------+-------------------------------|
   | RXD  |  Green   |   Off    |  Transmitting all ones from   |
   |      |          |          |            the DTE            |
   |------+----------+----------+-------------------------------|
   | RXD  |  Green   | Blinking |   Data is being transferred   |
   |------+----------+----------+-------------------------------|
   | RTS  |  Green   |    On    |      RTS signal is high       |
   |------+----------+----------+-------------------------------|
   | RTS  |  Green   |   Off    |       RTS signal is low       |
   |------+----------+----------+-------------------------------|
   | CTS  |  Green   |    On    |      CTS signal is high       |
   |------+----------+----------+-------------------------------|
   | CTS  |  Green   |   Off    |       CTS signal is low       |
   |------+----------+----------+-------------------------------|
   | DSR  |  Green   |    On    |      DSR signal is high       |
   |------+----------+----------+-------------------------------|
   | DSR  |  Green   |   Off    |       DSR signal is low       |
   |------+----------+----------+-------------------------------|
   | LSD  |  Green   |    On    |      LSD signal is high       |
   |------+----------+----------+-------------------------------|
   | LSD  |  Green   |   Off    |       LSD signal is low       |
   +------------------------------------------------------------+