1. insert the dfe-550tx software cd-rom in an available drive (here shown as drive a). at the dos prompt (here shown as ]), key in:

    ] a:\diag.exe

    and [return]. the opening screen of the verification/ diagnostic program will appear.

    read the readme.txt, on the cd-rom, to choose the appropriate diagnostic program for your operating system.

   

    2. review the reported configuration data before proceeding to step 3.

    3. the configuration data screen also features a diagnostic menu. follow the cues at the foot of the screen to select and run the adapter basic diagnostic program. the adapter function test results will appear onscreen. in the loopback test, test signals are intercepted and reflected at the mac level without reaching the network cable. if the results are normal, then go ahead to the network operation test, starting with step 4.