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       # BROOKTROUT TECHNOLOGY, INC.
       
          TR114+I8V-T1
       
          Card Type              ISDN                                    
          NIC Type               ISDN                                    
          Maximum Onboard Memory 2MB                                     
          Network Transfer Rate  1.544Mbps                               
          Topology               Star                                    
          Wiring Type            Unshielded twisted pair                 
          Data Bus               16-bit ISA                              
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |      Function       |  Label  |     Function     |  Label  |
          |---------------------+---------+------------------+---------|
          | RJ-45 UTP connector |   CN1   | MVIP connector   |   CN2   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                Function                 | Label | Position |
          |-----------------------------------------+-------+----------|
          | Card is first and only card in system   | SW3/1 |    On    |
          |-----------------------------------------+-------+----------|
          | Card is not first in a multiple card    | SW3/1 |   Off    |
          | system                                  |       |          |
          |-----------------------------------------+-------+----------|
          | T1 loopback test disabled               |  SW5  |   Off    |
          |-----------------------------------------+-------+----------|
          | T1 loopback test enabled                |  SW5  |    On    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 BASE I/O ADDRESS SELECTION                 |
          |------------------------------------------------------------|
          | Setting | SW3/2 | SW3/3 |SW3/4 |SW3/5 |SW3/6 |SW3/7 |SW3/8 |
          |---------+-------+-------+------+------+------+------+------|
          |  100h   |  On   |  On   |  On  |  On  |  On  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  108h   |  On   |  On   |  On  | Off  |  On  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  110h   |  On   |  On   |  On  |  On  | Off  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  118h   |  On   |  On   |  On  |  On  |  On  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  120h   |  On   |  On   | Off  |  On  |  On  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  260h   |  On   |  On   | Off  | Off  |  On  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3D8h   |  Off  |  Off  | Off  | Off  |  On  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E0h   |  Off  |  Off  | Off  | Off  | Off  |  On  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3E8h   |  Off  |  Off  | Off  | Off  | Off  |  On  | Off  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F0h   |  Off  |  Off  | Off  | Off  | Off  | Off  |  On  |
          |---------+-------+-------+------+------+------+------+------|
          |  3F8h   |  Off  |  Off  | Off  | Off  | Off  | Off  | Off  |
          |------------------------------------------------------------|
          |                           Note:                            |
          |                                                            |
          |A total of 255 base address settings are available. The     |
          |switches are a binary representation of the decimal memory  |
          |addresses. SW1/8 is the Most Significant Bit and switch     |
          |SW1/1 is the Least Significant Bit. The switches have the   |
          |following decimal values: SW1/8=32768, SW1/7=16384,         |
          |SW1/6=8192, SW1/5=4096, SW1/4=2048, SW1/3=1024, SW1/2=512,  |
          |SW1/1=256. Turn off the switches and add the values of the  |
          |switches to obtain the correct memory address. (Off=1, On=0)|
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    INTERRUPT SELECTION                     |
          |------------------------------------------------------------|
          |            IRQ             |              JP1              |
          |----------------------------+-------------------------------|
          |             3              |       Pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |             4              |       Pins 3 & 4 closed       |
          |----------------------------+-------------------------------|
          |             5              |       Pins 5 & 6 closed       |
          |----------------------------+-------------------------------|
          |             6              |       Pins 7 & 8 closed       |
          |----------------------------+-------------------------------|
          |             7              |      Pins 9 & 10 closed       |
          |----------------------------+-------------------------------|
          |             9              |      Pins 11 & 12 closed      |
          |----------------------------+-------------------------------|
          |             10             |      Pins 13 & 14 closed      |
          |----------------------------+-------------------------------|
          |             11             |      Pins 15 & 16 closed      |
          |----------------------------+-------------------------------|
          |             12             |      Pins 17 & 18 closed      |
          |----------------------------+-------------------------------|
          |             14             |      Pins 19 & 20 closed      |
          |----------------------------+-------------------------------|
          |             15             |      Pins 21 & 22 closed      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          | LED  |    Color     |  Status   |        Condition         |
          |------+--------------+-----------+--------------------------|
          | LED1 |     Red      | Blinking  |      Data is being       |
          |      |              |           | transmitted on channel 0 |
          |------+--------------+-----------+--------------------------|
          | LED1 |     Red      | Blinking  |  Channel 0 is off hook   |
          |      |              |  (fast)   |                          |
          |------+--------------+-----------+--------------------------|
          | LED2 |     Red      | Blinking  |      Data is being       |
          |      |              |           | transmitted on channel 1 |
          |------+--------------+-----------+--------------------------|
          | LED2 |     Red      | Blinking  |  Channel 1 is off hook   |
          |      |              |  (fast)   |                          |
          |------+--------------+-----------+--------------------------|
          | LED3 |     Red      | Blinking  |      Data is being       |
          |      |              |           | transmitted on channel 2 |
          |------+--------------+-----------+--------------------------|
          | LED3 |     Red      | Blinking  |  Channel 2 is off hook   |
          |      |              |  (fast)   |                          |
          |------+--------------+-----------+--------------------------|
          | LED4 |     Red      | Blinking  |      Data is being       |
          |      |              |           | transmitted on channel 3 |
          |------+--------------+-----------+--------------------------|
          | LED4 |     Red      | Blinking  |  Channel 3 is off hook   |
          |      |              |  (fast)   |                          |
          |------+--------------+-----------+--------------------------|
          | LED5 |     Red      | Blinking  |      Data is being       |
          |      |              |           | transmitted on channel 4 |
          |------+--------------+-----------+--------------------------|
          | LED5 |     Red      | Blinking  |  Channel 4 is off hook   |
          |      |              |  (fast)   |                          |
          |------+--------------+-----------+--------------------------|
          | LED6 |     Red      | Blinking  |      Data is being       |
          |      |              |           | transmitted on channel 5 |
          |------+--------------+-----------+--------------------------|
          | LED6 |     Red      | Blinking  |  Channel 5 is off hook   |
          |      |              |  (fast)   |                          |
          |------+--------------+-----------+--------------------------|
          | LED7 |     Red      | Blinking  |      Data is being       |
          |      |              |           | transmitted on channel 6 |
          |------+--------------+-----------+--------------------------|
          | LED7 |     Red      | Blinking  |  Channel 6 is off hook   |
          |      |              |  (fast)   |                          |
          |------+--------------+-----------+--------------------------|
          | LED8 |     Red      | Blinking  |      Data is being       |
          |      |              |           | transmitted on channel 7 |
          |------+--------------+-----------+--------------------------|
          | LED8 |     Red      | Blinking  |  Channel 7 is off hook   |
          |      |              |  (fast)   |                          |
          |------+--------------+-----------+--------------------------|
          |  D1  |     Red      |    On     | TR114+I8V-T1 in network  |
          |      |              |           |      loopback mode       |
          |------+--------------+-----------+--------------------------|
          |  D2  |     Red      |    On     |    Loss of T1 network    |
          |      |              |           |          signal          |
          |------+--------------+-----------+--------------------------|
          |  D3  |    Yellow    |    On     |  Failing to synchronize  |
          |      |              |           |  on incoming T1 signal   |
          |------+--------------+-----------+--------------------------|
          | D2 & |  Red/Yellow  |  Both on  |  Board cannot detect a   |
          |  D3  |              |           |     valid T1 signal      |
          |------+--------------+-----------+--------------------------|
          |  D4  |    Green     |    On     | Operating in normal mode |
          |------+--------------+-----------+--------------------------|
          | FRM  | Unidentified |    On     |     T1 framing error     |
          |      |              |           |         detected         |
          |------+--------------+-----------+--------------------------|
          | BPV  | Unidentified |    On     |   T1 bipolar violation   |
          |      |              |           |         detected         |
          |------+--------------+-----------+--------------------------|
          | CRC  | Unidentified |    On     |  Discrepancy in cyclic   |
          |      |              |           |     redundancy check     |
          |      |              |           |         detected         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   MVIP CLOCK TERMINATION                   |
          |------------------------------------------------------------|
          |      Setting       |       SW4/1       |       SW4/2       |
          |--------------------+-------------------+-------------------|
          |     Terminated     |        On         |        On         |
          |--------------------+-------------------+-------------------|
          |   Not terminated   |        Off        |        Off        |
          +------------------------------------------------------------+
       
 (IMG) IMG 2
          
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                Function                 | Label | Position |
          |-----------------------------------------+-------+----------|
          | T1 generates and transmits the clocking | SW1/1 |   Off    |
          | signals to the TR114                    |       |          |
          |-----------------------------------------+-------+----------|
          | TR114 generates and transmits the       | SW1/1 |    On    |
          | clocking signals to T1                  |       |          |
          |-----------------------------------------+-------+----------|
          | Super frame mode                        | SW1/2 |   Off    |
          |-----------------------------------------+-------+----------|
          | Extended super frame mode               | SW1/2 |    On    |
          |-----------------------------------------+-------+----------|
          | B8ZS line coding                        | SW1/3 |   Off    |
          |-----------------------------------------+-------+----------|
          | AMI line coding                         | SW1/3 |    On    |
          |-----------------------------------------+-------+----------|
          | MVIP clock master set to master         | SW2/3 |   Off    |
          |-----------------------------------------+-------+----------|
          | MVIP clock master set to slave          | SW2/3 |    On    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 T1 CABLE LENGTH SETTTINGS                  |
          |------------------------------------------------------------|
          |            Cable Length            | SW1/4 | SW1/5 | SW1/6 |
          |------------------------------------+-------+-------+-------|
          |            0 to 132 ft.            |  On   |  On   |  On   |
          |------------------------------------+-------+-------+-------|
          |           133 to 266 ft.           |  Off  |  On   |  On   |
          |------------------------------------+-------+-------+-------|
          |           267 to 398 ft.           |  On   |  Off  |  On   |
          |------------------------------------+-------+-------+-------|
          |           399 to 532 ft.           |  Off  |  Off  |  On   |
          |------------------------------------+-------+-------+-------|
          |           533 to 654 ft.           |  On   |  On   |  Off  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     MVIP STREAM SELECT                     |
          |------------------------------------------------------------|
          |                 Mode                  |  SW2/1  |  SW2/2   |
          |---------------------------------------+---------+----------|
          |                  6/7                  |   Off   |   Off    |
          |---------------------------------------+---------+----------|
          |                  4/5                  |   On    |   Off    |
          |---------------------------------------+---------+----------|
          |                  2/3                  |   Off   |    On    |
          |---------------------------------------+---------+----------|
          |                  0/1                  |   On    |    On    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    SYNC SOURCE CONTROL                     |
          |------------------------------------------------------------|
          |                Setting                |  SW2/3  |  SW2/4   |
          |---------------------------------------+---------+----------|
          |         TR114+I8V-T1 controls         |   Off   |   Off    |
          |---------------------------------------+---------+----------|
          |      Secondary net card controls      |   Off   |    On    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   FRAMING SIGNAL OUTPUT                    |
          |------------------------------------------------------------|
          |                Setting                |  SW2/3  |  SW2/4   |
          |---------------------------------------+---------+----------|
          |            Disable output             |   On    |   Off    |
          |---------------------------------------+---------+----------|
          |             Enable output             |   On    |    On    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        TERMINATION                         |
          |------------------------------------------------------------|
          |                Setting                |  SW2/5  |  SW2/6   |
          |---------------------------------------+---------+----------|
          |             Unterminated              |   Off   |   Off    |
          |---------------------------------------+---------+----------|
          |              Terminated               |   On    |    On    |
          +------------------------------------------------------------+