PURE DATA, LTD.
===============

   PDI508

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

<gopher://bitreich.org/I/th99/n/P-R/40010-1.png>
   

   +------------------------------------------------------------+
   |                        NODE ADDRESS                        |
   |------------------------------------------------------------|
   |Node |SW3/1 |SW3/2 |SW3/3 |SW3/4 |SW3/5 |SW3/6 |SW3/7 |SW3/8|
   |-----+------+------+------+------+------+------+------+-----|
   |  0  |  -   |  -   |  -   |  -   |  -   |  -   |  -   |  -  |
   |-----+------+------+------+------+------+------+------+-----|
   |  1  |  On  |  On  |  On  |  On  |  On  |  On  |  On  | Off |
   |-----+------+------+------+------+------+------+------+-----|
   |  2  |  On  |  On  |  On  |  On  |  On  |  On  | Off  | On  |
   |-----+------+------+------+------+------+------+------+-----|
   |  3  |  On  |  On  |  On  |  On  |  On  |  On  | Off  | Off |
   |-----+------+------+------+------+------+------+------+-----|
   |  4  |  On  |  On  |  On  |  On  |  On  | Off  |  On  | On  |
   |-----+------+------+------+------+------+------+------+-----|
   | 251 | Off  | Off  | Off  | Off  | Off  |  On  | Off  | Off |
   |-----+------+------+------+------+------+------+------+-----|
   | 252 | Off  | Off  | Off  | Off  | Off  | Off  |  On  | On  |
   |-----+------+------+------+------+------+------+------+-----|
   | 253 | Off  | Off  | Off  | Off  | Off  | Off  |  On  | Off |
   |-----+------+------+------+------+------+------+------+-----|
   | 254 | Off  | Off  | Off  | Off  | Off  | Off  | Off  | On  |
   |-----+------+------+------+------+------+------+------+-----|
   | 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 8 is the Least Significant Bit and      |
   |  switch 1 is the Most Significant Bit. The switches have   |
   |  the following decimal values: switch 8=1, 7=2, 6=4, 5=8,  |
   |  4=16, 3=32, 2=64, 1=128. Turn off the switches and add the|
   |  values of the off switches to obtain the correct node     |
   |  address. (On=0, off=1)                                    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    BASE MEMORY ADDRESS                     |
   |------------------------------------------------------------|
   |  Address   |   SW1/1   |   SW1/2   |   SW1/3   |   SW1/4   |
   |------------+-----------+-----------+-----------+-----------|
   |   D000h    |    Off    |    Off    |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   C000h    |    Off    |    Off    |    On     |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |   E000h    |    Off    |    Off    |    Off    |    On     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      I/O BASE ADDRESS                      |
   |------------------------------------------------------------|
   |  Address   |   SW1/7   |   SW1/8   |   SW2/1   |   SW2/2   |
   |------------+-----------+-----------+-----------+-----------|
   |    2E0h    |    Off    |    Off    |    Off    |    On     |
   |------------+-----------+-----------+-----------+-----------|
   |    2F0h    |    Off    |    Off    |    Off    |    Off    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     INTERRUPT REQUEST                      |
   |------------------------------------------------------------|
   | IRQ  | SW2/3  | SW2/4  | SW2/5  | SW2/6  | SW2/7  | SW2/8  |
   |------+--------+--------+--------+--------+--------+--------|
   |  2   |   On   |  Off   |  Off   |  Off   |  Off   |  Off   |
   |------+--------+--------+--------+--------+--------+--------|
   |  3   |  Off   |   On   |  Off   |  Off   |  Off   |  Off   |
   |------+--------+--------+--------+--------+--------+--------|
   |  4   |  Off   |  Off   |   On   |  Off   |  Off   |  Off   |
   |------+--------+--------+--------+--------+--------+--------|
   |  5   |  Off   |  Off   |  Off   |   On   |  Off   |  Off   |
   |------+--------+--------+--------+--------+--------+--------|
   |  7   |  Off   |  Off   |  Off   |  Off   |  Off   |   On   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                FACTORY CONFIGURED SETTINGS                 |
   |------------------------------------------------------------|
   |            Switch             |          Setting           |
   |-------------------------------+----------------------------|
   |         SW1/5 & SW1/6         |           Unused           |
   +------------------------------------------------------------+