Comparison Images EWS Oscilloscope Measurement (Help Text)

Comparison Images EWS Oscilloscope Measurement

Important
During the measurement, the DME/DDE must be connected. The CAS control module does not have to be enabled. As of terminal 15, it always sends the EWS signal.







Fig. 1: Signal OK.

Bear in mind that the statement "OK" only refers to the data line and the signal form. It is unable to determine whether the transmitted code is correct.







Fig. 2: Signal NOT OK.

The above signal indicates a fault in the DME/DDE.







Fig. 3: Signal NOT OK

The above signal indicates a wire fault or a fault in the CAS.







Fig. 4: Signal NOT OK

The above signal indicates a short circuit to positive.






Fig. 5: Signal NOT OK

The above signal indicates a short circuit to ground or an open circuit.