
IMC NETWORK CORPORATION

ETHERNIC/2000 COMBO

NIC Type      Ethernet
Transfer Rate 10Mbps
Data Bus      8/16-bit ISA
Topology      Linear Bus
Wiring Type   RG--58A/U 50ohm coaxial

              RG--62A/U 93ohm coaxial

              75ohm coaxial

              Shielded/Unshielded twisted pair

              AUI transceiver via DB-15 port
Boot ROM      Available

[Image]

                                INTERRUPT REQUEST

   IRQ      JP1A     JP1B     JP1C     JP1D    JP1E     JP1F     JP1G     JP1H

      2/9   Open     Open     Open    Closed   Open     Open     Open     Open

     3    Closed    Open     Open     Open    Open     Open     Open     Open

      4     Open    Closed    Open     Open    Open     Open     Open     Open

      5     Open     Open    Closed    Open    Open     Open     Open     Open

      10    Open     Open     Open     Open    Closed   Open     Open     Open

      11    Open     Open     Open     Open    Open     Closed   Open     Open

      12    Open     Open     Open     Open    Open     Open     Closed   Open

      15    Open     Open     Open     Open    Open     Open     Open     Closed

  Note:If a Boot ROM is installed, see the I/O base address & Boot ROM address
  table for valid interrupt settings.

                            COMPATIBILITY MODE

           Setting                    JP2A                   JP2B

            Disabled                Closed                  Open

             Enabled                  Open                  Closed

  Note:On some systems the data bus timing is not truly IBM PC/AT
  compatible. If the card is not initializing enabling compatibility mode
  may allow the card to operate properly.

                               DATA BUS SIZE

                 Setting                                JP2C

                 Autosense                            Closed

                    8-bit                               Open

       Note:In autosense mode the card automatically detects if it is in
       a 16-bit or 8-bit slot. On some Rev. 01 cards this jumper is
       incorrectly labeled TURBO.

                    I/O BASE ADDRESS & BOOT ROM ADDRESS

   I/O Address       Boot ROM        JP3A          JP3B          JP3C
                     Address

         200           N/A           Open          Open          Open

         220           N/A          Closed         Open          Open

         240           N/A           Open         Closed         Open

         260           N/A          Closed        Closed         Open

        300      C8000h (IRQ3)      Open          Open         Closed

         320      CC000h (IRQ5)     Closed         Open         Closed

        340h      D0000h (IRQ4)      Open         Closed        Closed

        360h           N/A          Closed        Closed        Closed

  Note:If a boot ROM is to be installed one of the I/O address
  configurations with a boot ROM address must be used and the indicated
  IRQ must be set.

                                 BOOT ROM

                 Setting                               JP3D

                 Disabled                            Closed

                   Enabled                             Open

                                CABLE TYPE

           Type               S1          S2          S3           S4

       RG--58A/U 50ohm      Open      Installed     Open      50ohm (P/N
           coaxial                                             90-39050)

        RG--62A/U 93ohm      Open      Installed     Open      93ohm (P/N
           coaxial                                             90-39093)

        75ohm coaxial        Open      Installed     Open      75ohm (P/N
                                                               90-39075)

      AUI transceiver via    Open        Open      Installed      N/A
          DB-15 port

      Shielded/Unshielded  Installed     Open        Open         N/A
         twisted pair

  Note:S1, S2, and S3 are sockets for a transformer chip while S4 is a
  socket for a Cabling Option Resistor Kit (CORK). To choose a cable type
  insert the appropriate chips into the appropriate sockets. All cards on
  the network segment must use the same type of coaxial cable.

                            LINK INTEGRITY TEST

                Setting                                 JP3

                  Enabled                       Pins 1 & 2 closed

                  Disabled                       Pins 2 & 3 closed

  Note:The link integrity test is valid only when the cable type is
  shielded/unshielded twisted pair.

                             DIAGNOSTIC LED(S)

     LED         Color         Status                 Condition

    LED1         Green           On              Twisted pair network
                                                 connection is good

    LED1         Green           Off             Twisted pair network
                                                connection is broken

  Note:LED1 indications are only valid when cable type is
  shielded/unshielded twisted pair.

