COMPEX, INC.
============

   ANET16-1A

   NIC Type         ARCnet                                        
   Transfer Rate    2.5Mbps                                       
   Data Bus         16-bit ISA                                    
   Topology         Star                                          
                                                                  
                    Linear Bus                                    
   Wiring Type      Shielded/Unshielded twisted pair              
                                                                  
                    RG-62A/U 93ohm coaxial                        
   Boot ROM         Available                                     

<gopher://bitreich.org/I/th99/n/C-D/40326-1.png>
   

   +------------------------------------------------------------+
   |                        NODE ADDRESS                        |
   |------------------------------------------------------------|
   |Node |SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6 |SW1/7 |SW1/8|
   |-----+------+------+------+------+------+------+------+-----|
   |  0  |  -   |  -   |  -   |  -   |  -   |  -   |  -   |  -  |
   |-----+------+------+------+------+------+------+------+-----|
   |  1  | Off  |  On  |  On  |  On  |  On  |  On  |  On  | On  |
   |-----+------+------+------+------+------+------+------+-----|
   |  2  |  On  | Off  |  On  |  On  |  On  |  On  |  On  | On  |
   |-----+------+------+------+------+------+------+------+-----|
   |  3  | Off  | Off  |  On  |  On  |  On  |  On  |  On  | On  |
   |-----+------+------+------+------+------+------+------+-----|
   |  4  |  On  |  On  | Off  |  On  |  On  |  On  |  On  | On  |
   |-----+------+------+------+------+------+------+------+-----|
   | 251 | Off  | Off  |  On  | Off  | Off  | Off  | Off  | Off |
   |-----+------+------+------+------+------+------+------+-----|
   | 252 |  On  |  On  | Off  | Off  | Off  | Off  | Off  | Off |
   |-----+------+------+------+------+------+------+------+-----|
   | 253 | Off  |  On  | Off  | Off  | Off  | Off  | Off  | Off |
   |-----+------+------+------+------+------+------+------+-----|
   | 254 |  On  | Off  | Off  | Off  | Off  | Off  | Off  | Off |
   |-----+------+------+------+------+------+------+------+-----|
   | 255 | Off  | Off  | Off  | Off  | Off  | Off  | Off  | Off |
   |------------------------------------------------------------|
   |Note:Node address 0 is used for messaging between nodes and |
   |must not be used.                                           |
   |                                                            |
   |  A total of 255 node address settings are available. The   |
   |  switches are a binary representation of the decimal node  |
   |  addresses. Switch 1 is the Least Significant Bit and      |
   |  switch 8 is the Most Significant Bit. The switches have   |
   |  the following decimal values: switch 1=1, 2=2, 3=4, 4=8,  |
   |  5=16, 6=32, 7=64, 8=128. Turn off the switches and add the|
   |  values of the off switches to obtain the correct node     |
   |  address. (On=0, off=1)                                    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     INTERRUPT REQUEST                      |
   |------------------------------------------------------------|
   |   IRQ    |   JP1   |   JP2   |   JP3   |   JP4   |   JP5   |
   |----------+---------+---------+---------+---------+---------|
   |>> | 2/9  |  Open   |  Open   |  Open   |  Open   | Closed  |
   |---+------+---------+---------+---------+---------+---------|
   |   |  3   |  Open   |  Open   |  Open   | Closed  |  Open   |
   |---+------+---------+---------+---------+---------+---------|
   |   |  4   |  Open   |  Open   | Closed  |  Open   |  Open   |
   |---+------+---------+---------+---------+---------+---------|
   |   |  5   |  Open   | Closed  |  Open   |  Open   |  Open   |
   |---+------+---------+---------+---------+---------+---------|
   |   |  7   | Closed  |  Open   |  Open   |  Open   |  Open   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                        I/O ADDRESS                         |
   |------------------------------------------------------------|
   |      Address       |     JP6     |    JP7     |    JP8     |
   |--------------------+-------------+------------+------------|
   |       |    260h    |   Closed    |   Closed   |   Closed   |
   |-------+------------+-------------+------------+------------|
   |       |    290h    |   Closed    |   Closed   |    Open    |
   |-------+------------+-------------+------------+------------|
   |>>     |    2E0h    |   Closed    |    Open    |   Closed   |
   |-------+------------+-------------+------------+------------|
   |       |    2F0h    |   Closed    |    Open    |    Open    |
   |-------+------------+-------------+------------+------------|
   |       |    300h    |    Open     |   Closed   |   Closed   |
   |-------+------------+-------------+------------+------------|
   |       |    350h    |    Open     |   Closed   |    Open    |
   |-------+------------+-------------+------------+------------|
   |       |    380h    |    Open     |    Open    |   Closed   |
   |-------+------------+-------------+------------+------------|
   |       |    3E0h    |    Open     |    Open    |    Open    |
   |------------------------------------------------------------|
   | Note:Jumpers count from right to left in the diagram.      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                          BOOT ROM                          |
   |------------------------------------------------------------|
   |             Setting             |           JP14           |
   |---------------------------------+--------------------------|
   |>> |          Disabled           |           Open           |
   |---+-----------------------------+--------------------------|
   |   |           Enabled           |          Closed          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             BASE ADDRESS AND BOOT ROM ADDRESS              |
   |------------------------------------------------------------|
   |Address |Boot ROM Address| JP9  | JP10 | JP11 | JP12 | JP13 |
   |--------+----------------+------+------+------+------+------|
   | C0000h |     C2000h     |Closed|Closed|Closed|Closed|Closed|
   |--------+----------------+------+------+------+------+------|
   | C4000h |     C6000h     |Closed|Closed| Open |Closed|Closed|
   |--------+----------------+------+------+------+------+------|
   | CC000h |     CE000h     |Closed| Open |Closed|Closed|Closed|
   |--------+----------------+------+------+------+------+------|
   | D0000h |     D2000h     |Closed| Open | Open |Closed|Closed|
   |--------+----------------+------+------+------+------+------|
   | D4000h |     D6000h     | Open |Closed|Closed|Closed|Closed|
   |--------+----------------+------+------+------+------+------|
   | D8000h |     DA000h     | Open |Closed| Open |Closed|Closed|
   |--------+----------------+------+------+------+------+------|
   | DC000h |     DE000h     | Open | Open |Closed|Closed|Closed|
   |--------+----------------+------+------+------+------+------|
   | E0000h |     E2000h     | Open | Open | Open |Closed|Closed|
   |------------------------------------------------------------|
   |Note:Jumpers count from right to left in the diagram.       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                         WAIT STATE                         |
   |------------------------------------------------------------|
   |                   Setting                   |     JP15     |
   |---------------------------------------------+--------------|
   |>>        |    Zero wait states disabled     |     Open     |
   |----------+----------------------------------+--------------|
   |          |     Zero wait states enabled     |    Closed    |
   |------------------------------------------------------------|
   | Note:If Zero wait states are enabled, IOCHRDY (JP20) must  |
   | be disabled.                                               |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                         CABLE TYPE                         |
   |------------------------------------------------------------|
   |           Type            | Topology |    JP16    |  JP17  |
   |---------------------------+----------+------------+--------|
   |>> |  RG62A/U 93ohm with   |   Star   | Pins 1 & 2 | Closed |
   |   |      terminator       |          |   Closed   |        |
   |---+-----------------------+----------+------------+--------|
   |   | RG62A/U 93ohm without |   Bus    |    Open    | Closed |
   |   |      terminator       |          |            |        |
   |---+-----------------------+----------+------------+--------|
   |   |  Shielded/Unshielded  |   Bus    | Pins 2 & 3 |  Open  |
   |   |     twisted pair      |          |   Closed   |        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     I/O CHANNEL READY                      |
   |------------------------------------------------------------|
   |                   Status                   |     JP20      |
   |--------------------------------------------+---------------|
   |>>        |     IOCHRDY signal disabled     |     Open      |
   |----------+---------------------------------+---------------|
   |          |     IOCHRDY signal enabled      |    Closed     |
   |------------------------------------------------------------|
   | Note:If IOCHRDY signal is enabled, Zero wait state (JP15)  |
   | must be disabled. If optional PROM is installed,           |
   +------------------------------------------------------------+