ALTA RESEARCH CORPORATION
=========================

   TOKENCOMBO-16 S/U (ISA)

   NIC Type         Token-Ring                                    
   Transfer Rate    4/16Mbps                                      
   Data Bus         16-bit ISA                                    
   Topology         Ring                                          
   Wiring Type      Unshielded twisted pair                       
                                                                  
                    Shielded twisted pair (DB-9 port)             
   Boot ROM         Available                                     

<gopher://bitreich.org/I/th99/n/A-B/40384-1.png>
   

   +------------------------------------------------------------+
   |                     COMPATIBILITY MODE                     |
   |------------------------------------------------------------|
   |                Setting                 |        JP1        |
   |----------------------------------------+-------------------|
   |>>             |        Disabled        |      Closed       |
   |---------------+------------------------+-------------------|
   |               |        Enabled         |       Open        |
   |------------------------------------------------------------|
   | Note: If the system in which the card is to be installed   |
   | is an 80286 using an older C & T or VLSI chipset and the   |
   | card is not loading the network shell properly,            |
   | compatibility mode should be enabled (JP1 open). On some   |
   | revisions of this card, JP1 might not be present.          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    BASE MEMORY ADDRESS                     |
   |------------------------------------------------------------|
   |  Address   | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 |
   |------------+-------+-------+-------+-------+-------+-------|
   |   | C0000h |  On   |  Off  |  Off  |  Off  |  Off  |  Off  |
   |---+--------+-------+-------+-------+-------+-------+-------|
   |   | C2000h |  On   |  Off  |  Off  |  Off  |  Off  |  On   |
   |---+--------+-------+-------+-------+-------+-------+-------|
   |   | C4000h |  On   |  Off  |  Off  |  Off  |  On   |  Off  |
   |---+--------+-------+-------+-------+-------+-------+-------|
   |   | C6000h |  On   |  Off  |  Off  |  Off  |  On   |  On   |
   |---+--------+-------+-------+-------+-------+-------+-------|
   |   | C8000h |  On   |  Off  |  Off  |  On   |  Off  |  Off  |
   |---+--------+-------+-------+-------+-------+-------+-------|
   |   | CA000h |  On   |  Off  |  Off  |  On   |  Off  |  On   |
   |---+--------+-------+-------+-------+-------+-------+-------|
   |>> | CC000h |  On   |  Off  |  Off  |  On   |  On   |  Off  |
   |---+--------+-------+-------+-------+-------+-------+-------|
   |   | CE000h |  On   |  Off  |  Off  |  On   |  On   |  On   |
   |---+--------+-------+-------+-------+-------+-------+-------|
   |   | D0000h |  On   |  Off  |  On   |  Off  |  Off  |  Off  |
   |---+--------+-------+-------+-------+-------+-------+-------|
   |   | DC000h |  On   |  Off  |  On   |  Off  |  Off  |  On   |
   |------------------------------------------------------------|
   | Note: If using two cards in the same system, the card set  |
   | to secondary should use address DC000h as its default.     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      SHARED RAM SIZE                       |
   |------------------------------------------------------------|
   |         Size         |      SW1/7       |      SW1/8       |
   |----------------------+------------------+------------------|
   |   |       8KB        |       Off        |       Off        |
   |---+------------------+------------------+------------------|
   |>> |       16KB       |       Off        |        On        |
   |---+------------------+------------------+------------------|
   |   |       32KB       |        On        |       Off        |
   |---+------------------+------------------+------------------|
   |   |       64KB       |        On        |        On        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     INTERRUPT REQUEST                      |
   |------------------------------------------------------------|
   |         IRQ         |       SW2/1       |      SW2/2       |
   |---------------------+-------------------+------------------|
   |>> |       2/9       |        Off        |       Off        |
   |---+-----------------+-------------------+------------------|
   |   |        3        |        Off        |        On        |
   |---+-----------------+-------------------+------------------|
   |   |        6        |        On         |       Off        |
   |---+-----------------+-------------------+------------------|
   |   |        7        |        On         |        On        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   NETWORK SEGMENT SPEED                    |
   |------------------------------------------------------------|
   |                  Speed                   |      SW2/3      |
   |------------------------------------------+-----------------|
   |>>              |         16Mbps          |       On        |
   |----------------+-------------------------+-----------------|
   |                |          4Mbps          |       Off       |
   |------------------------------------------------------------|
   | Note: All cards on the network segment must have this      |
   | option set identically.                                    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   PRIMARY/ALTERNATE MODE                   |
   |------------------------------------------------------------|
   |           Setting           |    Address     |    SW2/4    |
   |-----------------------------+----------------+-------------|
   |>>        |     Primary      |      A20h      |     Off     |
   |----------+------------------+----------------+-------------|
   |          |    Alternate     |      A24h      |     On      |
   |------------------------------------------------------------|
   | Note: If two cards are to be used in a single system, one  |
   | of the cards must be set to primary and the other one must |
   | be set to alternate.                                       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   | LED  | Color | Status |             Condition              |
   |------+-------+--------+------------------------------------|
   | LED1 |  Red  |   On   |    Data is being transmitted or    |
   |      |       |        |              received              |
   |------+-------+--------+------------------------------------|
   | LED1 |  Red  |  Off   |  Data is not being transmitted or  |
   |      |       |        |              received              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    MISCELLANEOUS NOTES                     |
   |------------------------------------------------------------|
   | The card automatically senses which network connector is   |
   | being used.                                                |
   +------------------------------------------------------------+