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

   ANET-1, ANET-12

   NIC Type         ARCnet                                        
   Transfer Rate    2.5Mbps                                       
   Data Bus         8-bit ISA                                     
   Topology         Star (ANET-1)                                 
                                                                  
                    Linear Bus (ANET-12)                          
   Wiring Type      RG-62A/U 93ohm coaxial                        
   Boot ROM         Available                                     

<gopher://bitreich.org/I/th99/n/C-D/40321-1.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)                                    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           RESPONSE AND RECONFIGURATION TIMEOUTS            |
   |------------------------------------------------------------|
   | Response Time |  Idle  | Reconfiguration |  JP1   |  JP2   |
   |               |  Time  |      Time       |        |        |
   |---------------+--------+-----------------+--------+--------|
   |>>  |  74.7us  |  86us  |      840ms      |  Open  |  Open  |
   |----+----------+--------+-----------------+--------+--------|
   |    | 283.4us  | 316us  |     1680ms      |  Open  | Closed |
   |----+----------+--------+-----------------+--------+--------|
   |    | 561.8us  | 624us  |     1680ms      | Closed |  Open  |
   |----+----------+--------+-----------------+--------+--------|
   |    | 1118.6us | 1237us |     1680ms      | Closed | Closed |
   |------------------------------------------------------------|
   | Note:All NICs on the network segment must have this option |
   | set the same.                                              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                       MODE SELECTION                       |
   |------------------------------------------------------------|
   |            Mode            |              JP3              |
   |----------------------------+-------------------------------|
   |>>         |     Normal     |    As shown in diagram on     |
   |           |                |         previous page         |
   |-----------+----------------+-------------------------------|
   |           |    Special     |    As shown on diagram on     |
   |           |                |         previous page         |
   |------------------------------------------------------------|
   |   Note:In normal mode, any 32KB memory segment in the      |
   |   system may be selected. For an AT, however, with memory, |
   |   display cards, and a hard drive controller, only 16KB of |
   |   free memory space is available between CC000h and        |
   |   CFFFFh. In Special Mode the memory space occupied by the |
   |   adapter is reduced by half to 16KB and the memory        |
   |   address is automatically set to CC000h. This overrides   |
   |   the base memory setting on JP15 and JP16.                |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      I/O BASE ADDRESS                      |
   |------------------------------------------------------------|
   | Address  | JP9  |  JP8   |  JP7   |  JP6   |  JP5  |  JP4  |
   |----------+------+--------+--------+--------+-------+-------|
   |   | 260h | Open | Closed | Closed |  Open  | Open  |Closed |
   |---+------+------+--------+--------+--------+-------+-------|
   |   | 280h | Open | Closed |  Open  | Closed |Closed |Closed |
   |---+------+------+--------+--------+--------+-------+-------|
   |>>  | 2E0h | Open | Closed |  Open  |  Open  | Open  |Closed |
   |---+------+------+--------+--------+--------+-------+-------|
   |   | 2F0h | Open | Closed |  Open  |  Open  | Open  | Open  |
   |---+------+------+--------+--------+--------+-------+-------|
   |   | 300h | Open |  Open  | Closed | Closed |Closed |Closed |
   |---+------+------+--------+--------+--------+-------+-------|
   |   | 360h | Open |  Open  | Closed |  Open  | Open  |Closed |
   |------------------------------------------------------------|
   |Note:Jumpers count from right to left in the diagram.       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     INTERRUPT REQUEST                      |
   |------------------------------------------------------------|
   |   IRQ    |  JP10   |  JP11   |  JP12   |  JP13   |  JP14   |
   |----------+---------+---------+---------+---------+---------|
   |>> | 2/9  | 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  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      BOOT ROM ADDRESS                      |
   |------------------------------------------------------------|
   |    Address    |  JP15   |  JP16   |  JP17   | JP18  | JP19 |
   |---------------+---------+---------+---------+-------+------|
   |    |  C0000h  | Closed  | Closed  | Closed  | Open  | Open |
   |----+----------+---------+---------+---------+-------+------|
   |    |  C8000h  |  Open   | Closed  | Closed  | Open  | Open |
   |----+----------+---------+---------+---------+-------+------|
   |    |  CC000h  |  Open   |  Open   | Closed  | Open  | Open |
   |----+----------+---------+---------+---------+-------+------|
   |>>  |  D0000h  | Closed  |  Open   | Closed  | Open  | Open |
   |------------------------------------------------------------|
   | Note:Jumpers count from the bottom up in the diagram.      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   |  LED   |  Color  | Status  |           Condition           |
   |--------+---------+---------+-------------------------------|
   |  LED1  |   Red   |   On    |   Data is being transmitted   |
   |--------+---------+---------+-------------------------------|
   |  LED1  |   Red   |   Off   | Data is not being transmitted |
   |--------+---------+---------+-------------------------------|
   |  LED2  |  Green  |   On    |    Data is being received     |
   |--------+---------+---------+-------------------------------|
   |  LED2  |  Green  |   Off   |  Data is not being received   |
   +------------------------------------------------------------+