
ALLIED TELESYN, INC.

AT-2000U

NIC Type      Ethernet
Transfer Rate 10Mbps
Data Bus      8/16-bit ISA
Topology      Star

              Linear Bus
Wiring Type   Unshielded twisted pair

              RG-58A/U 50ohm coaxial

              AUI transceiver via DB-15 port
Boot ROM      Available

[Image]

                                CONNECTORS

             Location                              Function

               JP13                    External activity LED connection

  Note:For external activity LED indications, please refer to the
  Diagnostic LED table.

                                CABLE TYPE

              Type                   JP1A - JP1F              JP16

     Unshielded twisted pair     Pins 2 & 3 Closed          Closed

       RG-58A/U 50ohm coaxial     Pins 2 & 3 Closed           Open

         AUI transceiver via      Pins 1 & 2 Closed           Open
             DB-15 port

                             ETHERNET VERSION

                Setting                                 JP5

          Version 2 (IEEE 802.3)                      Open

                  Version 1                           Closed

                                INTERRUPT REQUEST

   IRQ      JP6A     JP6B     JP6C     JP6D    JP6E     JP6F     JP6G     JP6H

      2/9   Open     Open     Open    Closed   Open     Open     Open     Open

     3     Open     Open     Open     Open    Closed   Open     Open     Open

      4     Open     Open     Open     Open    Open     Closed   Open     Open

      5     Open     Open     Open     Open    Open     Open     Closed   Open

      7     Open     Open     Open     Open    Open     Open     Open     Closed

      10    Open     Open    Closed    Open    Open     Open     Open     Open

      11    Open    Closed    Open     Open    Open     Open     Open     Open

      15   Closed    Open     Open     Open    Open     Open     Open     Open

                                WAIT STATE

           Setting                    JP7                    JP12

         1 wait state                Open                  Closed

          0 wait states              Closed                  Open

                                 BOOT ROM

                 Setting                                JP8

                 Disabled                             Open

                   Enabled                            Closed

                             I/O BASE ADDRESS

      Address            JP9A         JP9B          JP9C         JP9D

        200-21Fh        Closed       Closed        Closed       Closed

        220-23Fh        Closed       Closed        Closed        Open

        240-25Fh        Closed       Closed         Open        Closed

        260-27Fh        Closed       Closed         Open         Open

        280-29Fh        Closed        Open         Closed       Closed

        2A0-2BFh        Closed        Open         Closed        Open

        2C0-2DFh        Closed        Open          Open        Closed

        2E0-2FFh        Closed        Open          Open         Open

       300-31Fh         Open        Closed        Closed       Closed

        320-33Fh         Open        Closed        Closed        Open

        340-35Fh         Open        Closed         Open        Closed

        360-37Fh         Open        Closed         Open         Open

        380-39Fh         Open         Open         Closed       Closed

        3A0-3BFh         Open         Open         Closed        Open

        3C0-3DFh         Open         Open          Open        Closed

        3E0-3FFh         Open         Open          Open         Open

                             BOOT ROM ADDRESS

   Address      JP10A     JP10B     JP10C     JP10D     JP10E     JP10F

      C0000h     Open    Closed    Closed    Closed     Closed    Closed

      C2000h     Open    Closed    Closed    Closed     Closed     Open

      C4000h     Open    Closed    Closed    Closed      Open     Closed

      C6000h     Open    Closed    Closed    Closed      Open      Open

     C8000h     Open    Closed    Closed     Open      Closed    Closed

      CA000h     Open    Closed    Closed     Open      Closed     Open

      CC000h     Open    Closed    Closed     Open       Open     Closed

      CE000h     Open    Closed    Closed     Open       Open      Open

      D0000h     Open    Closed     Open     Closed     Closed    Closed

      D2000h     Open    Closed     Open     Closed     Closed     Open

      D4000h     Open    Closed     Open     Closed      Open     Closed

      D6000h     Open    Closed     Open     Closed      Open      Open

      D8000h     Open    Closed     Open      Open      Closed    Closed

      DA000h     Open    Closed     Open      Open      Closed     Open

      DC000h     Open    Closed     Open      Open       Open     Closed

      DE000h     Open    Closed     Open      Open       Open      Open

                            CARD EMULATION MODE

                  Mode                                JP11A

                  NE2000                              Open

                   NE1000                             Closed

  Note:If the card is installed in an 8-bit slot the mode should be
  NE1000.

  If the card is installed in a 16-bit slot the mode should be NE2000.

                                ONBOARD RAM

                 Size                                 JP11C

                  16KB                               Open

                   32KB                              Closed

                               BOOT ROM SIZE

    Size        JP14A      JP14B      JP14C       JP15A          JP15B

      8KB       Open       Open       Open     Pins 1 & 2     Pins 1 & 2
                                                  Closed        Closed

       16KB     Closed      Open       Open     Pins 1 & 2     Pins 1 & 2
                                                  Closed        Closed

       32KB      Open      Closed      Open     Pins 1 & 2     Pins 2 & 3
                                                  Closed        Closed

       64KB      Open       Open      Closed    Pins 2 & 3     Pins 2 & 3
                                                  Closed        Closed

                            LINK INTEGRITY TEST

                Setting                                JP17

                  Enabled                       Pins 1 & 2 closed

                  Disabled                       Pins 2 & 3 closed

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

                               DATA BUS SLOT

                Setting                                JP18

                  16-bit                             Closed

                   8-bit                               Open

                             BUS MASTER ENABLE

                 Setting                               JP19

                 Disabled                             Open

                   Enabled                            Closed

  Note:This option must be enabled if there is a bus master card
  installed in the system. If JP19 is closed, JP18

  FACTORY CONFIGURED SETTING

    Jumper         Setting

      JP4           Closed

     JP11B           Open

     JP11C           Open

                             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

    External         N/A           On        Data is being transmitted or
     (JP13)                                            received

    External         N/A           Off             Data is not being
     (JP13)                                    transmitted or received

  Note:LED1 indications are only valid when the cable type is twisted
  pair.

