ALLIED TELESYN, INC.

AT-1500BT

NIC Type      Ethernet
Transfer Rate 10Mbps
Data Bus      16-bit ISA
Topology      Star
Wiring Type   RG58A/U 50ohm

              Unshielded twisted pair
Boot ROM      In firmware

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                             BASE I/O ADDRESS

          Address                    JP1                     JP2

  »          300h                  Closed                  Closed

             320h                  Closed                  Closed

             340h                   Open                    Open

             360h                   Open                    Open

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                             DIAGNOSTIC LED(S)

     LED         Color        Status                Condition

    LED1         Green         Off        Data is not being transmitted

    LED1         Green          On          Data is being transmitted

    LED2        Yellow         Off          Data is not being received

    LED2        Yellow          On            Data is being received

    LED3         Green          On        10BaseT link integrity exists

    LED3         Green         Off        10BaseT link integrity broken

    LED4        Yellow          On        Collisions detected on network

    LED4        Yellow         Off           No collisions detected on
                                                     network