
TIARA COMPUTER SYSTEMS, INC.

LanCard/A-PC16 & LanCard/A-PC16 HiZ

NIC Type         ARCnet
Transfer Rate    2.5Mbps
Data Bus         16-bit ISA
Topology         Star
Wiring Type      RG-62A/U 93ohm coaxial (A-PC16 and A-PC16 HiZ)

                 RG-58A/U 50ohm coaxial (A-PC16 Hiz)
Boot ROM         Available

[Image]

                               NODE ADDRESS

  Node   SW1/1    SW1/2   SW1/3   SW1/4    SW1/5   SW1/6    SW1/7   SW1/8

   0       -       -        -       -       -        -       -        -

   1      On      Off      Off     Off     Off      Off     Off      Off

   2      Off      On      Off     Off     Off      Off     Off      Off

   3      On       On      Off     Off     Off      Off     Off      Off

   4      Off     Off      On      Off     Off      Off     Off      Off

  251     On       On      Off     On       On      On       On      On

  252     Off     Off      On      On       On      On       On      On

  253     On      Off      On      On       On      On       On      On

  254     Off      On      On      On       On      On       On      On

  255     On       On      On      On       On      On       On      On

  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 on the
       switches and add the values of the on switches to obtain the
       correct node address. (On=1, off=0)

                      EXTENDED TIMEOUT CONFIGURATION

   Distance      Response     Reconfiguration        JP2          JP3
                  Time

  4.8 miles       74.7s           840ms          Pins 1 & 2   Pins 1 & 2
                                                   closed        closed

  21.0 miles     263.4s           1680ms         Pins 1 & 2   Pins 2 & 3
                                                   closed        closed

  42.5 miles     561.8s           1680ms         Pins 2 & 3   Pins 1 & 2
                                                   closed        closed

  85.6 miles     1118.6s          1680ms         Pins 2 & 3   Pins 2 & 3
                                                   closed        closed

  Note: The distance given is the maximum distance between the two
  furthest nodes on the network.

                         RIM BUFFER CONFIGURATION

        Address                JP7              JP8             JP9

        D000-D1FFh         Pins 2 & 3       Pins 2 & 3      Pins 2 & 3
                              closed          closed           closed

         COOO-DFFFh            N/A              N/A          Pins 1 & 2
                                                               closed

         D400-D5FFh         Pins 1 & 2       Pins 2 & 3      Pins 2 & 3
                              closed          closed           closed

          D800-D9FF         Pins 2 & 3       Pins 1 & 2      Pins 2 & 3
                              closed          closed           closed

          DC00-DEFF         Pins 1 & 2       Pins 1 & 2      Pins 2 & 3
                              closed          closed           closed

  Note: When JP9 has pins 1 & 2 closed, the buffer size is 128KB, rather
  than 8KB. Use this setting when experiencing difficulty with fast
  AT-class machines.

                             I/O BASE ADDRESS

     Address         JP18       JP19        JP20        JP21       JP22

       0280h      Pins 2 &    Pins 2 &    Pins 2 &   Pins 1 &   Pins 2 &
                      3           3           3          2          3

        02Aoh      Pins 2 &    Pins 1 &    Pins 2 &   Pins 1 &   Pins 2 &
                      3           2           3          2          3

        02E0h      Pins 2 &    Pins 1 &    Pins 1 &   Pins 1 &   Pins 2 &
                      3           2           2          2          3

        0300h      Pins 2 &    Pins 2 &    Pins 2 &   Pins 2 &   Pins 1 &
                      3           3           3          3          2

        0330h      Pins 1 &    Pins 1 &    Pins 2 &   Pins 2 &   Pins 1 &
                      2           2           3          3          2

  Note: Pins designated should be in the closed position.

                                            INTERRUPT REQUEST

   IRQ     JP31     JP32     JP33     JP34    JP35     JP36     JP37     JP38     JP39     JP40     JP41

     2    Open     Open     Open     Open    Open     Closed   Open     Open     Open     Open     Open

      3    Open     Open     Open     Open    Open     Open     Closed   Open     Open     Open     Open

      4    Open     Open     Open     Open    Open     Open     Open     Closed   Open     Open     Open

      5    Open     Open     Open     Open    Open     Open     Open     Open    Closed    Open     Open

      6    Open     Open     Open     Open    Open     Open     Open     Open     Open    Closed    Open

      7    Open     Open     Open     Open    Open     Open     Open     Open     Open     Open    Closed

      10   Open     Open     Open     Open    Closed   Open     Open     Open     Open     Open     Open

      11   Open     Open     Open    Closed   Open     Open     Open     Open     Open     Open     Open

      12   Open     Open    Closed    Open    Open     Open     Open     Open     Open     Open     Open

      14  Closed    Open     Open     Open    Open     Open     Open     Open     Open     Open     Open

      15   Open    Closed    Open     Open    Open     Open     Open     Open     Open     Open     Open

                  BASE MEMORY ADDRESS - LAST THREE DIGITS

   Address      ROM  JP11   JP12   JP13   JP26   JP27   JP28   JP29   JP30

  x000h-x1FFh   8K   Pins   Pins   Pins   Pins   Pins   Pins   Pins   Pins
                x 8  2&3    2&3    2&3    1&2    1&2    1&2    2&3    2&3

  x200h-x3FFh   8K   Pins   Pins   Pins   Pins   Pins   Pins   Pins   Pins
                x 8  1&2    2&3    2&3    1&2    1&2    1&2    2&3    2&3

  x400h-x5FFh   8K   Pins   Pins   Pins   Pins   Pins   Pins   Pins   Pins
                x 8  2&3    1&2    2&3    1&2    1&2    1&2    2&3    2&3

  x600h-x7FFh   8K   Pins   Pins   Pins   Pins   Pins   Pins   Pins   Pins
                x 8  1&2    1&2    2&3    1&2    1&2    1&2    2&3    2&3

  x800h-x9FFh   8K   Pins   Pins   Pins   Pins   Pins   Pins   Pins   Pins
                x 8  2&3    2&3    1&2    1&2    1&2    1&2    2&3    2&3

  xA00h-xBFFh   8K   Pins   Pins   Pins   Pins   Pins   Pins   Pins   Pins
                x 8  1&2    2&3    1&2    1&2    1&2    1&2    2&3    2&3

  xC00h-xDFFh   8K   Pins   Pins   Pins   Pins   Pins   Pins   Pins   Pins
                x 8  2&3    1&2    1&2    1&2    1&2    1&2    2&3    2&3

  xE00h-xFFFh   8K   Pins   Pins   Pins   Pins   Pins   Pins   Pins   Pins
                x 8  1&2    1&2    1&2    1&2    1&2    1&2    2&3    2&3

  x000h-x3FFh   16K  Pins   Pins   Pins   Pins   Pins   Pins   Pins   Pins
                x 8  2&3    2&3    2&3    2&3    1&2    1&2    2&3    1&2

  x400h-x7FFh   16K  Pins   Pins   Pins   Pins   Pins   Pins   Pins   Pins
                x 8  2&3    1&2    2&3    2&3    1&2    1&2    2&3    1&2

  x800h-xBFFh   16K  Pins   Pins   Pins   Pins   Pins   Pins   Pins   Pins
                x 8  2&3    2&3    1&2    2&3    1&2    1&2    2&3    1&2

  xC00h-xFFFh   16K  Pins   Pins   Pins   Pins   Pins   Pins   Pins   Pins
                x 8  2&3    1&2    1&2    2&3    1&2    1&2    2&3    1&2

  x000h-x7FFh   32K  Pins   Pins   Pins   Pins   Pins   Pins   Pins   Pins
                x 8  2&3    2&3    2&3    2&3    2&3    1&2    1&2    2&3

  x800h-xFFFh   32K  Pins   Pins   Pins   Pins   Pins   Pins   Pins   Pins
                x 8  2&3    2&3    1&2    2&3    2&3    1&2    1&2    2&3

  x000h-xFFFh   64K  Pins   Pins   Pins   Pins   Pins   Pins   Pins   Pins
                x 8  2&3    2&3    2&3    2&3    2&3    2&3    1&2    1&2

  Note: Pins designated should be in the closed position.

  Note: Place the three digit address given here behind the single digit
  given in the following table to get the complete base memory address.

                     BASE MEMORY ADDRESS - FIRST DIGIT

     Address         JP14          JP15           JP16           JP17
    Segment

       0h         Pins 2 & 3     Pins 2 & 3    Pins 2 & 3     Pins 2 & 3
                    closed        closed         closed         closed

       1h         Pins 1 & 2     Pins 2 & 3    Pins 2 & 3     Pins 2 & 3
                    closed        closed         closed         closed

       2h         Pins 2 & 3     Pins 1 & 2    Pins 2 & 3     Pins 2 & 3
                    closed        closed         closed         closed

       3h         Pins 1 & 2     Pins 1 & 2    Pins 2 & 3     Pins 2 & 3
                    closed        closed         closed         closed

       4h         Pins 2 & 3     Pins 2 & 3    Pins 1 & 2     Pins 2 & 3
                    closed        closed         closed         closed

       5h         Pins 1 & 2     Pins 2 & 3    Pins 1 & 2     Pins 2 & 3
                    closed        closed         closed         closed

       6h         Pins 2 & 3     Pins 1 & 2    Pins 1 & 2     Pins 2 & 3
                    closed        closed         closed         closed

       7h         Pins 1 & 2     Pins 1 & 2    Pins 1 & 2     Pins 2 & 3
                    closed        closed         closed         closed

       8h         Pins 2 & 3     Pins 2 & 3    Pins 2 & 3     Pins 1 & 2
                    closed        closed         closed         closed

       9h         Pins 1 & 2     Pins 2 & 3    Pins 2 & 3     Pins 1 & 2
                    closed        closed         closed         closed

       Ah         Pins 2 & 3     Pins 1 & 2    Pins 2 & 3     Pins 1 & 2
                    closed        closed         closed         closed

       Bh         Pins 1 & 2     Pins 1 & 2    Pins 2 & 3     Pins 1 & 2
                    closed        closed         closed         closed

       Ch         Pins 2 & 3     Pins 2 & 3    Pins 1 & 2     Pins 1 & 2
                    closed        closed         closed         closed

       Dh         Pins 1 & 2     Pins 2 & 3    Pins 1 & 2     Pins 1 & 2
                    closed        closed         closed         closed

       Eh         Pins 2 & 3     Pins 1 & 2    Pins 1 & 2     Pins 1 & 2
                    closed        closed         closed         closed

       Fh         Pins 1 & 2     Pins 1 & 2    Pins 1 & 2     Pins 1 & 2
                    closed        closed         closed         closed

  Note:he Address Segment is the first digit in the Base Memory Address.
  Refer to the previous table for the remaining three digits in the
  address.

                                 BOOT ROM

                 Setting                               JP43

                  Disabled                      Pins 2 & 3 closed

                   Enabled                       Pins 1 & 2 closed

  FACTORY CONFIGURED SETTINGS - DO NOT ALTER

        Jumper                 Setting

          JP1             Pins 2 & 3 closed

         JP23             Pins 1 & 2 closed

         JP24             Pins 2 & 3 closed

         JP25             Pins 2 & 3 closed

                         DIAGNOSTIC LED(S)

    LED        Color      Status               Condition

     L1         Red         On          Data is being received

     L1         Red        Off        Data is not being received

     L1         Red      Blinking        Card is reconfiguring

     L2        Green        On         Data is being transmitted

     L2        Green       Off       Data is not being transmitted

     L2        Green     Blinking        Card is reconfiguring

