GTEK, INC.
==========

   BLACKBOARD 8/650

   Card Type               Serial card                            
   Chip Set                Unidentified                           
   Maximum Onboard Memory  Unidentified                           
   I/O Options             Serial ports (8 RS-232)                
   Hard Drives supported   None                                   
   Floppy drives supported None                                   
   Data Bus                16-bit ISA                             
   Card Size               Half-length, full-height card          

<gopher://bitreich.org/I/th99/i/E-H/53398-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function        | Label  |     Function      | Label |
   |-----------------------+--------+-------------------+-------|
   | Serial port via RJ-45 |   J1   | Serial port via   |  J6   |
   | connector             |        | RJ-45 connector   |       |
   |-----------------------+--------+-------------------+-------|
   | Serial port via RJ-45 |   J2   | Serial port via   |  J7   |
   | connector             |        | RJ-45 connector   |       |
   |-----------------------+--------+-------------------+-------|
   | Serial port via RJ-45 |   J3   | Serial port via   |  J8   |
   | connector             |        | RJ-45 connector   |       |
   |-----------------------+--------+-------------------+-------|
   | Serial port via RJ-45 |   J4   | Cascade cable     |  JB8  |
   | connector             |        | connector         |       |
   |-----------------------+--------+-------------------+-------|
   | Serial port via RJ-45 |   J5   |                   |       |
   | connector             |        |                   |       |
   |------------------------------------------------------------|
   | Note: JB8 is used to cascade card to another Blackboard    |
   | 8/650 via jumper cable.                                    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Label |   Position   |
   |-------------------------------------+-------+--------------|
   |>> | Factory configured - do not     |  JB2  | Unidentified |
   |   | alter.                          |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     |  JB3  | Unidentified |
   |   | alter.                          |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     |  JB5  |     Open     |
   |   | alter.                          |       |              |
   +------------------------------------------------------------+

  +----------------------------------------------------------------+
  |                 SERIAL PORT ADDRESS SELECTION                  |
  |----------------------------------------------------------------|
  |                  Setting                  |JB1/A |JB1/B |JB1/C |
  |-------------------------------------------+------+------+------|
  |200h/600h/A00h/E00h/1200h/1600h/1A00h/1E00h|Closed|Closed| Open |
  |-------------------------------------------+------+------+------|
  |210h/610h/A10h/E10h/1210h/1610h/1A10h/1E10h|Closed|Closed|Closed|
  |-------------------------------------------+------+------+------|
  |                 100h-138h                 |Closed| Open |Closed|
  |-------------------------------------------+------+------+------|
  |                 140h-178h                 | Open |Closed|Closed|
  |-------------------------------------------+------+------+------|
  |                 180h-1B8h                 |Closed| Open | Open |
  |-------------------------------------------+------+------+------|
  |  2C0h/2C8h/2D0h/2D8h/3E8h/2E8h/3F8h/2F8h  | Open | Open | Open |
  |-------------------------------------------+------+------+------|
  |  2C0h/2C8h/2D0h/2D8h/2E0h/2E8h/2F0h/2F8h  | Open |Closed| Open |
  |-------------------------------------------+------+------+------|
  |                 280h-2B8h                 | Open | Open |Closed|
  |----------------------------------------------------------------|
  |If all pins of JB1 are left open, Ports 4, 5, 6, and 7 become   |
  |COM3, COM4, COM1, and COM2 respectively. If only JB1/B is       |
  |closed, Ports 5 and 7 become COM4 and COM2 respectively         |
  +----------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    INSTRUCTIONAL NOTES                     |
   |------------------------------------------------------------|
   | For individual port interrupts, see the 'Discrete Serial   |
   | Port Interrupt Selection' table below.                     |
   |                                                            |
   | For multiple ports assigned to one interrupt, select the   |
   | desired ports from the 'Com Port Select' table below and   |
   | assign an IRQ to them using the 'Serial Port Interrupt     |
   | Selection' table.                                          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |          DISCRETE SERIAL PORT INTERRUPT SELECTION          |
   |------------------------------------------------------------|
   |          IRQ          |              JB6/JB7               |
   |-----------------------+------------------------------------|
   |    IRQ10 on Port 0    | JB6/A, Pin 2 jumped to JB7/A, Pin1 |
   |-----------------------+------------------------------------|
   |    IRQ11 on Port 1    | JB6/B, Pin 2 jumped to JB7/B, Pin1 |
   |-----------------------+------------------------------------|
   |    IRQ12 on Port 2    | JB6/C, Pin 2 jumped to JB7/C, Pin1 |
   |-----------------------+------------------------------------|
   |    IRQ15 on Port 3    | JB6/D, Pin 2 jumped to JB7/D, Pin1 |
   |-----------------------+------------------------------------|
   |    IRQ5 on Port 4     | JB6/E, Pin 2 jumped to JB7/E, Pin1 |
   |-----------------------+------------------------------------|
   |    IRQ7 on Port 5     | JB6/F, Pin 2 jumped to JB7/F, Pin1 |
   |-----------------------+------------------------------------|
   |    IRQ4 on Port 6     | JB6/G, Pin 2 jumped to JB7/G, Pin1 |
   |-----------------------+------------------------------------|
   |    IRQ3 on Port 7     | JB6/H, Pin 2 jumped to JB7/H, Pin1 |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      COM PORT SELECT                       |
   |------------------------------------------------------------|
   |            Port            |            JB6/A-H            |
   |----------------------------+-------------------------------|
   |             0              |           A closed            |
   |----------------------------+-------------------------------|
   |             1              |           B closed            |
   |----------------------------+-------------------------------|
   |             2              |           C closed            |
   |----------------------------+-------------------------------|
   |             3              |           D closed            |
   |----------------------------+-------------------------------|
   |             4              |           E closed            |
   |----------------------------+-------------------------------|
   |             5              |           F closed            |
   |----------------------------+-------------------------------|
   |             6              |           G closed            |
   |----------------------------+-------------------------------|
   |             7              |           H closed            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT INTERRUPT SELECTION               |
   |------------------------------------------------------------|
   |             IRQ             |           JB7/A-I            |
   |-----------------------------+------------------------------|
   |            IRQ10            |           A closed           |
   |-----------------------------+------------------------------|
   |            IRQ11            |           B closed           |
   |-----------------------------+------------------------------|
   |            IRQ12            |           C closed           |
   |-----------------------------+------------------------------|
   |            IRQ15            |           D closed           |
   |-----------------------------+------------------------------|
   |            IRQ5             |           E closed           |
   |-----------------------------+------------------------------|
   |            IRQ7             |           F closed           |
   |-----------------------------+------------------------------|
   |            IRQ4             |           G closed           |
   |-----------------------------+------------------------------|
   |            IRQ3             |           H closed           |
   |-----------------------------+------------------------------|
   |            IRQ2             |           I closed           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |        HIGH SPEED/NORMAL SPEED OPERATION SELECTION         |
   |------------------------------------------------------------|
   |             Function              |    JB9     |   JB10    |
   |-----------------------------------+------------+-----------|
   |   High speed operation enabled    |    Open    |  Closed   |
   |-----------------------------------+------------+-----------|
   |  Normal speed operation enabled   |   Closed   |   Open    |
   |------------------------------------------------------------|
   | Note: The high speed (4x/460Kbps) operation feature        |
   | applies only to Revision-A boards or later.                |
   |                                                            |
   | Normal operation mode transfer rate is 115Kbps.            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               MISCELLANEOUS TECHNICAL NOTES                |
   |------------------------------------------------------------|
   | To configure Guardian Watchdog(TM) system:                    |
   |                                                            |
   | a) Plug supplied jumper cable onto top two pins of JB4 and |
   | plug other end onto reset jumper of mother-board.          |
   |                                                            |
   | b) Plug reset button cable onto bottom two pins of JB4.    |
   +------------------------------------------------------------+