DIGITAL LINK CORPORATION
========================

   SOLO T1 CSU

   Card Type         CSU                                          
   NIC Type          T1                                           
   Chip Set          Unidentified                                 
   I/O Options       AC power connector, DC power connector, DTE  
                     port via 15-pin connector,                   
                                                                  
                     serial port (RS-232), network interface via  
                     15-pin connector                             
                                                                  
                     monitor jack - transmit, monitor jack -      
                     receive                                      
   Wiring Type       RJ-48 shielded twisted pair                  
   Maximum Data Rate 9600bps                                      
   Data Bus          External                                     

<gopher://bitreich.org/I/th99/t/C-D/54415-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Function       | Label |       Function       | Label |
   |---------------------+-------+----------------------+-------|
   | AC power connector  |  CN1  | Network interface    |  CN5  |
   |                     |       | via 15-pin connector |       |
   |---------------------+-------+----------------------+-------|
   | DC power connector  |  CN2  | Monitor jack -       |  CN6  |
   |                     |       | transmit             |       |
   |---------------------+-------+----------------------+-------|
   | Serial port         |  CN3  | Monitor jack -       |  CN7  |
   |                     |       | receive              |       |
   |---------------------+-------+----------------------+-------|
   | DTE port via 15-pin |  CN4  | Fuse                 |  F1   |
   | connector           |       |                      |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                Setting                 | Label  | Position |
   |----------------------------------------+--------+----------|
   |>> | Network framing ESF enabled        |  S1/1  |   Off    |
   |---+------------------------------------+--------+----------|
   |   | Network framing D4 enabled         |  S1/1  |    On    |
   |---+------------------------------------+--------+----------|
   |>> | Line code B8ZS enabled             |  S1/2  |   Off    |
   |---+------------------------------------+--------+----------|
   |   | Line code AMI enabled              |  S1/2  |    On    |
   |---+------------------------------------+--------+----------|
   |>> | Auxiliary framing D4 enabled       |  S1/5  |   Off    |
   |---+------------------------------------+--------+----------|
   |   | Auxiliary framing ESF enabled      |  S1/5  |    On    |
   |---+------------------------------------+--------+----------|
   |>> | Auxiliary line code AMI enabled    |  S1/6  |   Off    |
   |---+------------------------------------+--------+----------|
   |>> | Auxiliary line code B8ZS enabled   |  S1/6  |    On    |
   |---+------------------------------------+--------+----------|
   |>> | Factory configured - do not alter  |  S2/1  |   Off    |
   |---+------------------------------------+--------+----------|
   |>> | Factory configured - do not alter  |  S2/2  |   Off    |
   |---+------------------------------------+--------+----------|
   |>> | Serial port stop bits (2)          |  S2/5  |   Off    |
   |---+------------------------------------+--------+----------|
   |   | Serial port stop bits (1)          |  S2/5  |    On    |
   |---+------------------------------------+--------+----------|
   |>> | Word length 8-bit enabled          | S2/11  |   Off    |
   |---+------------------------------------+--------+----------|
   |   | Word length 7-bit enabled          | S2/11  |    On    |
   |---+------------------------------------+--------+----------|
   |>> | DIP switch configuration enabled   | S2/12  |   Off    |
   |---+------------------------------------+--------+----------|
   |   | Terminal configuration enabled     | S2/12  |    On    |
   |------------------------------------------------------------|
   | Note: Off corresponds to the 1 or closed position.         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    SOUND CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Net build       |      SW1/3       |      SW1/4      |
   |-----------------------+------------------+-----------------|
   |>> |        0dB        |       Off        |       Off       |
   |---+-------------------+------------------+-----------------|
   |   |      -7.5dB       |       Off        |       On        |
   |---+-------------------+------------------+-----------------|
   |   |       -15dB       |        On        |       Off       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    AUXILARY LINE LENGTH                    |
   |------------------------------------------------------------|
   |     Setting      |    SW1/7    |    SW1/8    |    SW1/9    |
   |------------------+-------------+-------------+-------------|
   |     0-133ft      |     Off     |     Off     |     Off     |
   |------------------+-------------+-------------+-------------|
   |    133-266ft     |     Off     |     Off     |     On      |
   |------------------+-------------+-------------+-------------|
   |    266-388ft     |     On      |     On      |     Off     |
   |------------------+-------------+-------------+-------------|
   |    388-533ft     |     On      |     Off     |     Off     |
   |------------------+-------------+-------------+-------------|
   |    533-655ft     |     On      |     On      |     On      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                        TIMING SOURCE                       |
   |------------------------------------------------------------|
   |      Setting       |       SW2/3       |       SW2/4       |
   |--------------------+-------------------+-------------------|
   |      Network       |        Off        |        Off        |
   |--------------------+-------------------+-------------------|
   |      Internal      |        Off        |        On         |
   |--------------------+-------------------+-------------------|
   |     Auxiliary      |        On         |        Off        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      SERIAL PORT RATE                      |
   |------------------------------------------------------------|
   |      Setting       |    SW2/6    |   SW2/7    |   SW2/8    |
   |--------------------+-------------+------------+------------|
   |   |    1200bps     |     Off     |     On     |     On     |
   |---+----------------+-------------+------------+------------|
   |   |    2400bps     |     Off     |     On     |    Off     |
   |---+----------------+-------------+------------+------------|
   |   |    4800bps     |     Off     |    Off     |     On     |
   |---+----------------+-------------+------------+------------|
   |>> |    9600bps     |     Off     |    Off     |    Off     |
   |---+----------------+-------------+------------+------------|
   |   |    14.4Kbps    |     On      |     On     |     On     |
   |---+----------------+-------------+------------+------------|
   |   |    19.2Kbps    |     On      |     On     |    Off     |
   |---+----------------+-------------+------------+------------|
   |   |    28.8Kbps    |     On      |    Off     |     On     |
   |---+----------------+-------------+------------+------------|
   |   |    38.4Kbps    |     On      |    Off     |    Off     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     SERIAL PORT PARITY                     |
   |------------------------------------------------------------|
   |      Setting       |       SW2/9       |      SW2/10       |
   |--------------------+-------------------+-------------------|
   |        None        |        Off        |        Off        |
   |--------------------+-------------------+-------------------|
   |        Odd         |        Off        |        On         |
   |--------------------+-------------------+-------------------|
   |        Even        |        On         |        Off        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   |   LED    |    Color    |  Status  |       Condition        |
   |----------+-------------+----------+------------------------|
   |   PWR    |    Green    |    On    |      Power is on       |
   |----------+-------------+----------+------------------------|
   |   PWR    |     Red     |    On    |   Alarm is activated   |
   |----------+-------------+----------+------------------------|
   |   PWR    |    Yellow   |    On    | CSU is on and running  |
   |          |             |          |         a test         |
   |----------+-------------+----------+------------------------|
   |   PWR    |     None    |   Off    |      Power is off      |
   |----------+-------------+----------+------------------------|
   |   NET    |    Green    |    On    |   CSU is receiving a   |
   |          |             |          |  signal from network   |
   |----------+-------------+----------+------------------------|
   |   NET    |     Red     |    On    |     Loss of frame      |
   |          |             |          |    condition exists    |
   |----------+-------------+----------+------------------------|
   |      NET |   Red/Green | Blinking | CSU is detecting BPV,  |
   |          |             |          |   CRC, or OOF error    |
   |          |             |          |  signal from network   |
   |----------+-------------+----------+------------------------|
   |   NET    |    Yellow   |    On    |  Yellow or blue alarm  |
   |          |             |          |  signal received from  |
   |          |             |          |        network         |
   |----------+-------------+----------+------------------------|
   |   NET    |     None    |   Off    | CSU is not receiving a |
   |          |             |          |  signal from network   |
   |----------+-------------+----------+------------------------|
   |   NLBK   |    Yellow   |    On    | Network loopback test  |
   |          |             |          |        running         |
   |----------+-------------+----------+------------------------|
   |   NLBK   |    Yellow   |   Off    | Network loopback test  |
   |          |             |          |      not running       |
   |----------+-------------+----------+------------------------|
   |   ACK    |    Yellow   |    On    |   Remote loop (up or   |
   |          |             |          | down) detected - Press |
   |          |             |          | buttons to run (up) or |
   |          |             |          |   (down) remote loop   |
   |          |             |          |          test          |
   |----------+-------------+----------+------------------------|
   |   ACK    |    Yellow   |   Off    |  Remote loop test not  |
   |          |             |          |        running         |
   |----------+-------------+----------+------------------------|
   |   DTE    |    Yellow   |    On    | DTE loopback running:  |
   |          |             |          | - Press button to DTE  |
   |          |             |          |   loopback run test    |
   |----------+-------------+----------+------------------------|
   |   DTE    |    Yellow   |   Off    |    DTE loopback not    |
   |          |             |          |        running         |
   |----------+-------------+----------+------------------------|
   |   AUX    |     Green   |    On    |   DTE port operating   |
   |          |             |          |        normally        |
   |----------+-------------+----------+------------------------|
   |   AUX    |      Red    |    On    |  Loss of frame on DTE  |
   |          |             |          |          port          |
   |----------+-------------+----------+------------------------|
   |   AUX    |   Red/Green | Blinking | CSU is detecting BPV,  |
   |          |             |          |   CRC, or OOF error    |
   |          |             |          |   signal on DTE port   |
   |----------+-------------+----------+------------------------|
   |   AUX    |    Yellow   |    On    |  Yellow or blue alarm  |
   |          |             |          | signal received on DTE |
   |          |             |          |          port          |
   |----------+-------------+----------+------------------------|
   |   AUX    |     None    |   Off    | Loss of signal on DTE  |
   |          |             |          |          port          |
   +------------------------------------------------------------+