before starting the execution of a test, pay attention to the following points:

    1 you can connect only one ioopback at a time.

    2 if a loopback is already connected, the test indicator lights. if you try to connect a ioopback while another ioopback of the same type is already in progress, fcd-2 displays the error 03 message (ioopback already in progress).

    3 the loop ra ml, loop ld ml, loop rd ml and loop l ch ioopbacks can be connected only when the internal dbg jumper is set to on.

   

    deactivating tests

    to deactivate a test:

    1. display test option none using the procedure given above.

    2. bring cursor to the none field.

    3. press enter.

    the test is deactivated and the test indicator turns off.