NATURAL MICROSYSTEMS CORPORATION
================================

   ALLIANCE GENERATION AG-24, AG-30, AG-48, AG-60

   Card Type              Telephony                               
   Chip Set               TI TMS320C51                            
   I/O options            MVIP bus, serial port                   
   Processor              80376/80386SX                           
   Processor Speed        16/25MHz                                
   Maximum Onboard Memory 4MB DRAM/256KB SRAM                     
   Data Bus               16-bit ISA                              

<gopher://bitreich.org/I/th99/t/M-O/51959-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |     Function      | Label |        Function        | Label |
   |-------------------+-------+------------------------+-------|
   | MVIP bus          |  JP5  | Mini-ISA daughterboard |  JP8  |
   |-------------------+-------+------------------------+-------|
   | DSP daughterboard |  JP7  | RS-232 port (see       | JP10  |
   |                   |       | pinout below)          |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                        JP10 PINOUT                         |
   |------------------------------------------------------------|
   |            Pin             |           Function            |
   |----------------------------+-------------------------------|
   |             1              |            Ground             |
   |----------------------------+-------------------------------|
   |             2              |           Transmit            |
   |----------------------------+-------------------------------|
   |             3              |            Receive            |
   |----------------------------+-------------------------------|
   |             4              |            Ground             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                            DRAM                            |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       2MB        |     (4) 1M x 4     |        NONE        |
   |------------------+--------------------+--------------------|
   |       4MB        |     (4) 1M x 4     |     (4) 1M x 4     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               BASE I/O ADDRESS (FIRST DIGIT)               |
   |------------------------------------------------------------|
   |    Setting    |     S1/1      |     S1/2     |    S1/3     |
   |---------------+---------------+--------------+-------------|
   |    0 xxx h    |      On       |      On      |     On      |
   |---------------+---------------+--------------+-------------|
   |    2 xxx h    |      Off      |      On      |     On      |
   |---------------+---------------+--------------+-------------|
   |    4 xxx h    |      On       |     Off      |     On      |
   |---------------+---------------+--------------+-------------|
   |    6 xxx h    |      Off      |     Off      |     On      |
   |---------------+---------------+--------------+-------------|
   |    8 xxx h    |      On       |      On      |     Off     |
   |---------------+---------------+--------------+-------------|
   |    A xxx h    |      Off      |      On      |     Off     |
   |---------------+---------------+--------------+-------------|
   |    C xxx h    |      On       |     Off      |     Off     |
   |---------------+---------------+--------------+-------------|
   |    E xxx h    |      Off      |     Off      |     Off     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |            BASE I/O ADDRESS (LAST THREE DIGITS)            |
   |------------------------------------------------------------|
   |    Setting    |     S1/4     |     S1/5     |     S1/6     |
   |---------------+--------------+--------------+--------------|
   |    x 100h     |      On      |     Off      |     Off      |
   |---------------+--------------+--------------+--------------|
   |    x 180h     |     Off      |      On      |     Off      |
   |---------------+--------------+--------------+--------------|
   |    x 1A0h     |     Off      |     Off      |      On      |
   |---------------+--------------+--------------+--------------|
   |    x 1C0h     |     Off      |      On      |      On      |
   |---------------+--------------+--------------+--------------|
   |    x 280h     |      On      |      On      |     Off      |
   |---------------+--------------+--------------+--------------|
   |    x 2A0h     |      On      |     Off      |      On      |
   |---------------+--------------+--------------+--------------|
   |    x 2C0h     |      On      |      On      |      On      |
   |---------------+--------------+--------------+--------------|
   |    x 340h     |     Off      |     Off      |     Off      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   | LED | Color | Status |              Condition              |
   |-----+-------+--------+-------------------------------------|
   | D1  |  Red  |   On   |     Task processor 1 request in     |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D1  |  Red  |  Off   |   Task processor 1 request not in   |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D1  | Green |   On   | Task processor 1 grant in progress  |
   |-----+-------+--------+-------------------------------------|
   | D1  | Green |  Off   |    Task processor 1 grant not in    |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D2  |  Red  |   On   |     Task processor 2 request in     |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D2  |  Red  |  Off   |   Task processor 2 request not in   |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D2  | Green |   On   | Task processor 2 grant in progress  |
   |-----+-------+--------+-------------------------------------|
   | D2  | Green |  Off   |    Task processor 2 grant not in    |
   |     |       |        |              progress               |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DIAGNOSTIC LED(S) (CON'T)                  |
   |------------------------------------------------------------|
   | LED | Color | Status |              Condition              |
   |-----+-------+--------+-------------------------------------|
   | D3  |  Red  |   On   |     Task processor 3 request in     |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D3  |  Red  |  Off   |   Task processor 3 request not in   |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D3  | Green |   On   | Task processor 3 grant in progress  |
   |-----+-------+--------+-------------------------------------|
   | D3  | Green |  Off   |    Task processor 3 grant not in    |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D4  |  Red  |   On   |     Task processor 4 request in     |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D4  |  Red  |  Off   |   Task processor 4 request not in   |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D4  | Green |   On   | Task processor 4 grant in progress  |
   |-----+-------+--------+-------------------------------------|
   | D4  | Green |  Off   |    Task processor 4 grant not in    |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D5  |  Red  |   On   |     Task processor 5 request in     |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D5  |  Red  |  Off   |   Task processor 5 request not in   |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D5  | Green |   On   | Task processor 5 grant in progress  |
   |-----+-------+--------+-------------------------------------|
   | D5  | Green |  Off   |    Task processor 5 grant not in    |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D6  |  Red  |   On   |     Task processor 6 request in     |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D6  |  Red  |  Off   |   Task processor 6 request not in   |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D6  | Green |   On   | Task processor 6 grant in progress  |
   |-----+-------+--------+-------------------------------------|
   | D6  | Green |  Off   |    Task processor 6 grant not in    |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D7  |  Red  |   On   | MVIP processor request in progress  |
   |-----+-------+--------+-------------------------------------|
   | D7  |  Red  |  Off   |    MVIP processor request not in    |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D7  | Green |   On   |  MVIP processor grant in progress   |
   |-----+-------+--------+-------------------------------------|
   | D7  | Green |  Off   |     MVIP processor grant not in     |
   |     |       |        |              progress               |
   |-----+-------+--------+-------------------------------------|
   | D9  |  Red  |   On   |         Processor is reset          |
   |-----+-------+--------+-------------------------------------|
   | D9  |  Red  |  Off   |       Processor is not reset        |
   |-----+-------+--------+-------------------------------------|
   | D9  | Green |   On   |            SRAM is busy             |
   |-----+-------+--------+-------------------------------------|
   | D9  | Green |  Off   |          SRAM is not busy           |
   |-----+-------+--------+-------------------------------------|
   | D10 |  Red  |   On   |   Processor is transmitting data    |
   |-----+-------+--------+-------------------------------------|
   | D10 |  Red  |  Off   |     Processor is receiving data     |
   |-----+-------+--------+-------------------------------------|
   | D10 | Green |   On   |   Host is reading/writing to SRAM   |
   |-----+-------+--------+-------------------------------------|
   | D10 | Green |  Off   |   Processor is reading/writing to   |
   |     |       |        |                SRAM                 |
   |-----+-------+--------+-------------------------------------|
   | D11 |  Red  |   On   |         DSP chips are reset         |
   |-----+-------+--------+-------------------------------------|
   | D11 |  Red  |  Off   |       DSP chips are not reset       |
   |-----+-------+--------+-------------------------------------|
   | D11 | Green |   On   | MVIP streams 0, 1, 4, and 5 are in  |
   |     |       |        |                 use                 |
   |-----+-------+--------+-------------------------------------|
   | D11 | Green |  Off   | MVIP streams 2, 3, 6, and 7 are in  |
   |     |       |        |                 use                 |
   |-----+-------+--------+-------------------------------------|
   | D12 |  Red  |   On   |         T1 signal detected          |
   |-----+-------+--------+-------------------------------------|
   | D12 |  Red  |  Off   |       T1 signal not detected        |
   +------------------------------------------------------------+