EVEREX SYSTEMS, INC.
====================

   TEMPO 286/12,16 (EV-1824(C))

   Processor         80286                                        
   Processor Speed   12/16MHz                                     
   Chip Set          Unidentified                                 
   Max. Onboard DRAM 4MB                                          
   Cache             None                                         
   BIOS              Unidentified                                 
   Dimensions        330mm x 218mm                                
   I/O Options       Parallel port, serial ports (2)              
   NPU Options       80287                                        

<gopher://bitreich.org/I/th99/m/E-H/32836-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose       | Location | Purpose              | Location |
   |---------------+----------+----------------------+----------|
   | Serial port 1 |   J30    | Speaker              |    J1    |
   |---------------+----------+----------------------+----------|
   | Serial port 2 |   J31    | Front panel          |    J2    |
   |               |          | connector            |          |
   |---------------+----------+----------------------+----------|
   | Parallel port |   J32    |                      |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Function              | Jumper |   Position    |
   |-----------------------------------+--------+---------------|
   |>> | Serial port 2 IRQ select IRQ3 |  J79   |  pins 1 & 2   |
   |   |                               |        |    closed     |
   |---+-------------------------------+--------+---------------|
   |   | Serial port 2 IRQ select IRQ4 |  J79   |  pins 3 & 4   |
   |   |                               |        |    closed     |
   |---+-------------------------------+--------+---------------|
   |>> | Serial port 1 IRQ select IRQ4 |  J79   |  pins 7 & 8   |
   |   |                               |        |    closed     |
   |---+-------------------------------+--------+---------------|
   |   | Serial port 1 IRQ select IRQ3 |  J79   |  pins 5 & 6   |
   |   |                               |        |    closed     |
   |---+-------------------------------+--------+---------------|
   |>> | Parallel port IRQ select IRQ7 |  J79   | pins 11 & 12  |
   |   |                               |        |    closed     |
   |---+-------------------------------+--------+---------------|
   |   | Parallel port IRQ select IRQ5 |  J79   |  pins 9 & 10  |
   |   |                               |        |    closed     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |      512KB       |    (2) 256K x 9    |        NONE        |
   |------------------+--------------------+--------------------|
   |       1MB        |    (2) 256K x 9    |    (2) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       2MB        |     (2) 1M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       4MB        |     (2) 1M x 9     |     (2) 1M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM JUMPER CONFIGURATION                  |
   |------------------------------------------------------------|
   | Size  |     W1      |     W2     |     W3     |     W4     |
   |-------+-------------+------------+------------+------------|
   | 512KB |    Open     | pins 1 & 2 |    Open    | pins 1 & 2 |
   |       |             |   closed   |            |   closed   |
   |-------+-------------+------------+------------+------------|
   |  1MB  | pins 1 & 2  | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
   |       |   closed    |   closed   |   closed   |   closed   |
   |-------+-------------+------------+------------+------------|
   |  2MB  |    Open     | pins 1 & 2 |    Open    | pins 1 & 2 |
   |       |             |   closed   |            |   closed   |
   |-------+-------------+------------+------------+------------|
   |  4MB  | pins 1 & 2  | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
   |       |   closed    |   closed   |   closed   |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |            HANDSHAKING CONFIGURATION (SOFTWARE)            |
   |------------------------------------------------------------|
   | Type |             W5             |           W6           |
   |------+----------------------------+------------------------|
   | dcd  | pins 1 & 2, 4 & 5, 7 & 8,  | pins 1 & 2, 4 & 5, 7 & |
   |      |       9 & 10 closed        |    8, 9 & 10 closed    |
   |------+----------------------------+------------------------|
   |  ri  | pins 1 & 2, 4 & 5, 7 & 8,  | pins 1 & 2, 4 & 5, 7 & |
   |      |       9 & 10 closed        |    8, 9 & 10 closed    |
   |------+----------------------------+------------------------|
   | cts  | pins 1 & 2, 4 & 5, 7 & 8,  | pins 1 & 2, 4 & 5, 7 & |
   |      |       9 & 10 closed        |    8, 9 & 10 closed    |
   |------+----------------------------+------------------------|
   | dsr  | pins 1 & 2, 4 & 5, 7 & 8,  | pins 1 & 2, 4 & 5, 7 & |
   |      |       9 & 10 closed        |    8, 9 & 10 closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           HANDSHAKING CONFIGURATION (FULL FORCE)           |
   |------------------------------------------------------------|
   | Type |             W5             |           W6           |
   |------+----------------------------+------------------------|
   | dcd  | pins 2 & 3, 5 & 6, 9 & 9,  | pins 2 & 3, 5 & 6, 9 & |
   |      |       10 & 11 closed       |   9, 10 & 11 closed    |
   |------+----------------------------+------------------------|
   |  ri  | pins 2 & 3, 5 & 6, 9 & 9,  | pins 2 & 3, 5 & 6, 9 & |
   |      |       10 & 11 closed       |   9, 10 & 11 closed    |
   |------+----------------------------+------------------------|
   | cts  | pins 2 & 3, 5 & 6, 9 & 9,  | pins 2 & 3, 5 & 6, 9 & |
   |      |       10 & 11 closed       |   9, 10 & 11 closed    |
   |------+----------------------------+------------------------|
   | dsr  | pins 2 & 3, 5 & 6, 9 & 9,  | pins 2 & 3, 5 & 6, 9 & |
   |      |       10 & 11 closed       |   9, 10 & 11 closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                INTERFACE MODE CONFIGURATION                |
   |------------------------------------------------------------|
   | Type |            W7            |            W8            |
   |------+--------------------------+--------------------------|
   | DTE  | 1 & 2, 3 & 4, 5 & 6, 7 & | 1 & 2, 3 & 4, 5 & 6, 7 & |
   |      |   8, 9 & 10 , 11 & 12    |   8, 9 & 10 , 11 & 12    |
   |------+--------------------------+--------------------------|
   | DCE  | 1 & 3, 2 & 4, 5 & 7, 6 & | 1 & 3, 2 & 4, 5 & 7, 6 & |
   |      |    8, 9 & 11, 10 & 12    |    8, 9 & 11, 10 & 12    |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+