
UNIDENTIFIED

B-666

NIC Type              ARCnet
Network Transfer Rate 2.5Mbps
Data Bus              8-bit ISA
Topology              Star
Wiring Type           RG-62A/U 93ohm coaxial

                      RG-58A/U 50ohm coaxial
Boot ROM              Available

[Image]

                                CONNECTIONS

          Function             Label           Function             Label

  RG-58A/U 50ohm coaxial       CN1     RG-62A/U 93ohm coaxial       CN2

                        USER CONFIGURABLE SETTINGS

                    Function                      Label      Position

  Boot ROM enabled                                JP1         Closed

  Boot ROM disabled                               JP1          Open

                      STATION NODE ADDRESS SELECTION

  Node   SW2/1    SW2/2   SW2/3   SW2/4    SW2/5   SW2/6    SW2/7   SW2/8

   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

   5      Off      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: A total of 255 base address settings are available. The
            switches are a binary representation of the decimal memory
            addresses. SW1/8 is the Most Significant Bit and switch SW1/1
            is the Least Significant Bit. Turn off the switches and add
            the values of the switches to obtain the correct memory
            address.

                           ROM ADDRESS SELECTION

     Address       PROM Address     SW1/1   SW1/2   SW1/3   SW1/4   SW1/5

  C:0000-C:07FFh   C:2000-C:3FFFh    On      On      On      On      On

  C:0800-C:0FFFh   C:2000-C:3FFFh    Off     On      On      On      On

  C:1000-C:17FFh   C:2000-C:3FFFh    On      Off     On      On      On

  C:1800-C:1FFFh   C:2000-C:3FFFh    Off     Off     On      On      On

  C:4000-C:47FFh   C:6000-C:7FFFh    On      On      Off     On      On

  C:4800-C:4FFFh   C:6000-C:7FFFh    Off     On      Off     On      On

  C:5000-C:57FFh   C:6000-C:7FFFh    On      Off     Off     On      On

  C:5800-C:5FFFh   C:6000-C:7FFFh    Off     Off     Off     On      On

  C:C000-C:C7FFh   C:E000-C:FFFFh    On      On      On      Off     On

  C:C800-C:CFFFh   C:E000-C:FFFFh    Off     On      On      Off     On

  C:D000-C:D7FFh   C:E000-C:FFFFh    On      Off     On      Off     On

  C:D800-C:DFFFh   C:E000-C:FFFFh    Off     Off     On      Off     On

  D:0000-D:07FFh   D:2000-D:3FFFh    On      On      Off     Off     On

  D:0800-D:0FFFh   D:2000-D:3FFFh    Off     On      Off     Off     On

  D:1000-D:17FFh   D:2000-D:3FFFh    On      Off     Off     Off     On

  D:1800-D:1FFFh   D:2000-D:3FFFh    Off     Off     Off     Off     On

  D:4000-D:47FFh   D:6000-D:7FFFh    On      On      On      On      Off

  D:4800-D:4FFFh   D:6000-D7FFFh     Off     On      On      On      Off

  D:5000-D:57FFh   D:6000-D:7FFFh    On      Off     On      On      Off

  D:5800-D:5FFFh   D:6000-D:7FFFh    Off     Off     On      On      Off

  D:8000-D:87FFh   D:A000-D:BFFFh    On      On      Off     On      Off

  D:8800-D:8FFFh   D:A000-D:BFFFh    Off     On      Off     On      Off

  D:9000-D:97FFh   D:A000-D:BFFFh    On      Off     Off     On      Off

  D:9800-D:9FFFh   D:A000-D:BFFFh    Off     Off     Off     On      Off

  D:C000-D:C7FFh   D:E000-D:FFFFh    On      On      On      Off     Off

  D:C800-D:CFFFh   D:E000-D:FFFFh    Off     On      On      Off     Off

  D:D000-D:D7FFh   D:E000-D:FFFFh    On      Off     On      Off     Off

  D:D800-D:DFFFh   D:E000-D:FFFFh    Off     Off     On      Off     Off

  E:0000-E:07FFh   E:2000-E:3FFFh    On      On      Off     Off     Off

  E:0800-E:0FFFh   E:2000-E:3FFFh    Off     On      Off     Off     Off

  E:1000-E17FFh    E:2000-E:3FFFh    On      Off     Off     Off     Off

  E:1800-E:1FFFh   E:2000-E:3FFFh    Off     Off     Off     Off     Off

          BASE I/O ADDRESS SELECTION

  Setting      SW1/6       SW1/7      SW1/8

  260-26Fh      On          On          On

  290-29Fh      Off         On          On

  2E0-2EFh      On          Off         On

  2F0-2FFh      Off         Off         On

  300-30Fh      On          On         Off

  350-35Fh      Off         On         Off

  380-38Fh      On          Off        Off

  3E0-3EFh      Off         Off        Off

                       MISCELLANEOUS TECHNICAL NOTES

            Note: Jumper JP2 sets the interrupt line, however the exact
            configuration is unidentified.

            The purpose of jumper JP3 is unidentified.

