XINETRON, INC.
==============

   XI221S/XI221B

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

<gopher://bitreich.org/I/th99/n/U-Z/40553-1.png>
   

   +------------------------------------------------------------+
   |                        NODE ADDRESS                        |
   |------------------------------------------------------------|
   |Node |SW2/1 |SW2/2 |SW2/3 |SW2/4 |SW2/5 |SW2/6 |SW2/7 |SW2/8|
   |-----+------+------+------+------+------+------+------+-----|
   |  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 1=128, 2=64, 3=32,   |
   |  4=16, 5=8, 6=4, 7=2, 8=1. Turn off the switches and add   |
   |  the values of the off switches to obtain the correct node |
   |  address. (On=0, Off=1)                                    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           RESPONSE AND RECONFIGURATION TIMEOUTS            |
   |------------------------------------------------------------|
   |   Response   |   Ide   | Reconfiguration |  JP1   |  JP2   |
   |     Time     |  Time   |      Time       |        |        |
   |--------------+---------+-----------------+--------+--------|
   |>>  |  78us   |  86us   |      840ms      |  Open  |  Open  |
   |----+---------+---------+-----------------+--------+--------|
   |    |  285us  |  316us  |     1680ms      |  Open  | Closed |
   |----+---------+---------+-----------------+--------+--------|
   |    |  563us  |  624us  |     1680ms      | Closed |  Open  |
   |----+---------+---------+-----------------+--------+--------|
   |    | 1130us  | 1237us  |     1680ms      | Closed | Closed |
   |------------------------------------------------------------|
   | Note:All NICs on the network segment must have this option |
   | set the same.                                              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     INTERRUPT REQUEST                      |
   |------------------------------------------------------------|
   |   IRQ   |   JP5A   |  JP5A   |  JP5A   |  JP5A   |  JP5A   |
   |---------+----------+---------+---------+---------+---------|
   |>> |  2  |  Closed  |  Open   |  Open   |  Open   |  Open   |
   |---+-----+----------+---------+---------+---------+---------|
   |   |  3  |   Open   | Closed  |  Open   |  Open   |  Open   |
   |---+-----+----------+---------+---------+---------+---------|
   |   |  4  |   Open   |  Open   | Closed  |  Open   |  Open   |
   |---+-----+----------+---------+---------+---------+---------|
   |   |  5  |   Open   |  Open   |  Open   | Closed  |  Open   |
   |---+-----+----------+---------+---------+---------+---------|
   |   |  7  |   Open   |  Open   |  Open   |  Open   | Closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      I/O BASE ADDRESS                      |
   |------------------------------------------------------------|
   |  Address  | SW1/1  | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 |
   |-----------+--------+-------+-------+-------+-------+-------|
   | |260-26Fh |  Off   |  On   |  On   |  Off  |  Off  |  On   |
   |-+---------+--------+-------+-------+-------+-------+-------|
   | |290-29Fh |  Off   |  On   |  Off  |  On   |  On   |  Off  |
   |-+---------+--------+-------+-------+-------+-------+-------|
   |>>|2E0-2EFh |  Off   |  On   |  Off  |  Off  |  Off  |  On   |
   |-+---------+--------+-------+-------+-------+-------+-------|
   | |2F0-2FFh |  Off   |  On   |  Off  |  Off  |  Off  |  Off  |
   |-+---------+--------+-------+-------+-------+-------+-------|
   | |300-30Fh |  Off   |  Off  |  On   |  On   |  On   |  On   |
   |-+---------+--------+-------+-------+-------+-------+-------|
   | |350-35Fh |  Off   |  Off  |  On   |  Off  |  On   |  Off  |
   |-+---------+--------+-------+-------+-------+-------+-------|
   | |380-38Fh |  Off   |  Off  |  Off  |  On   |  On   |  On   |
   |-+---------+--------+-------+-------+-------+-------+-------|
   | |3E0-3EFh |  Off   |  Off  |  Off  |  Off  |  Off  |  On   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |          BASE MEMORY ADDRESS AND BOOT ROM ADDRESS          |
   |------------------------------------------------------------|
   | Base Address |Boot ROM Address|SW1/7 |SW1/8 |SW1/9 |SW1/10 |
   |--------------+----------------+------+------+------+-------|
   | |C0000-C07FFh|  C2000-C3FFFh  | Off  | Off  |  On  |  On   |
   |-+------------+----------------+------+------+------+-------|
   |>>|D0000-D07FFh|  D2000-D3FFFh  | Off  | Off  |  On  |  Off  |
   |-+------------+----------------+------+------+------+-------|
   | |E0000-E07FFh|  E2000-E3FFFh  | Off  | Off  | Off  |  On   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                       DIAGNOSTIC LED                       |
   |------------------------------------------------------------|
   | LED  | Color  |  Status  |            Condition            |
   |------+--------+----------+---------------------------------|
   | LED1 | Yellow | Blinking |    Card is not connected to     |
   |      |        |          |             network             |
   |------+--------+----------+---------------------------------|
   | LED1 | Yellow |    On    |        Normal operation         |
   |------+--------+----------+---------------------------------|
   | LED1 | Yellow | Flashing |          Data is being          |
   |      |        |          |      transmitted/received       |
   |------------------------------------------------------------|
   | Note:Location of LED1 is unknown.                          |
   +------------------------------------------------------------+