AQUILA COMMUNICATIONS

AQ-PCA 108/AQ-PCA 208/AQ-PCA 308

NIC Type:       ARCnet
Transfer Rate:  2.5Mbps
Data Bus:       8-bit ISA
Topology:       Linear Bus (AQ-PCA-208/308)

                Star (AQ PCA-108/308)
Wiring Type     AUI tranceiver via DB-15 port

                RG-62A/U 93ohm coaxial (AQ-PCA-208)

                Shielded/Unshielded twisted pair
Boot ROM        Available

[Image]

        BOOT ROM

  Setting       JP1

  Enabled     Closed

  Disabled     Open

                          INTERRUPT SELECT - JP2

     IRQ        Jumper A    Jumper B    Jumper C    Jumper D    Jumper E

  »    IRQ2      Closed       Open        Open        Open        Open

       IRQ3       Open       Closed       Open        Open        Open

       IRQ4       Open        Open       Closed       Open        Open

       IRQ5       Open        Open        Open       Closed       Open

       IRQ7       Open        Open        Open        Open       Closed

                             EXTENDED TIME-OUT

          Setting                      E1                     E2

  »            78µs                   Open                   Open

              285µs                   Open                  Closed

              563µs                  Closed                  Open

             1130µs                  Closed                 Closed

  Note:All nodes in the network must have identical time-out settings.

                              NODE ID NUMBER

   ID #     SW1/1   SW1/2   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8

  »   255    On      On      On      On      On      On      On      On

      1     Off     Off     Off     Off     Off     Off     Off      On

  Note:Nodes can be numbered from 1 to 255. The switches are a binary
  representation of the node numbers. When a switch is on, the
  corresponding bit is set to 1 and has the following decimal value:
  SW1/1=128, SW1/2=64, SW1/3=32, SW1/4=16, SW1/5=8, SW1/6=4, SW1/7=2,
  SW1/8=1.

                              MEMORY ADDRESS

  RAM Address       ROM       SW2/1    SW2/2    SW2/3     SW2/4    SW2/5
                  Address

  »   D0000h      D2000h       On       Off      Off       On       On

      D0800h      D2000h       On       Off      Off       On       Off

      C0000h      C2000h       On        On       On       On       On

      C0800h      C2000h       On        On       On       On       Off

      C1000h      C2000h       On        On       On       Off      On

      C1800h      C2000h       On        On       On       Off      Off

      C4000h      C6000h       On        On      Off       On       On

      C4800h      C6000h       On        On      Off       On       Off

      C5000h      C6000h       On        On      Off       Off      On

      C5800h      C6000h       On        On      Off       Off      Off

      CC000h      CE000h       On       Off       On       On       On

      CC800h      CE000h       On       Off       On       On       Off

      CD000h      CE000h       On       Off       On       Off      On

      CD800h      CE000h       On       Off       On       Off      Off

      D1000h      D2000h       On       Off      Off       Off      On

      D1800h      D2000h       On       Off      Off       Off      Off

      D4000h      D6000h       Off       On       On       On       On

      D4800h      D6000h       Off       On       On       On       Off

      D5000h      D6000h       Off       On       On       Off      On

      D5800h      D6000h       Off       On       On       Off      Off

      D8000h      DA000h       Off       On      Off       On       On

      D8800h      DA000h       Off       On      Off       On       Off

                              MEMORY ADDRESS

     RAM           ROM      SW2/1     SW2/2    SW2/3     SW2/4     SW2/5
   Address      Address

   D9000h        DA000h      Off       On       Off       Off       On

   D9800h        DA000h      Off       On       Off       Off       Off

   DC000h        DE000h      Off       Off       On       On        On

   DC800h        DE000h      Off       Off       On       On        Off

   DD000h        DE000h      Off       Off       On       Off       On

   DD800h        DE000h      Off       Off       On       Off       Off

   E0000h        E2000h      Off       Off      Off       On        On

   E0800h        E2000h      Off       Off      Off       On        Off

   E1000h        E2000h      Off       Off      Off       Off       On

   E1800h        E2000h      Off       Off      Off       Off       Off

  Note:ROM address locations are only valid if JP1 is closed (Boot ROM
  enabled).

                                I/O ADDRESS

       Address              SW2/6             SW2/7            SW2/8

  »        2E0h              On                Off               On

           260h              On                On                On

           290h              On                On               Off

           2F0h              On                Off              Off

           300h              Off               On                On

           350h              Off               On               Off

           380h              Off               Off               On

           3E0h              Off               Off              Off