Determining the current return path integrity in an electric device connected or connectable to a further device

A computer program product for determining a current return path integrity in an electric device, the computer program product comprising:

• a storage medium readable by a computer and storing instructions for execution by the computer for performing a method comprising:
• applying a predetermined signal to a selected signal line of a plurality of signal lines of the electric device;
• detecting a near end crosstalk signal on at least one other signal line of the plurality of signal lines of the electric device;
• comparing the detected near end crosstalk signal with a reference signal pattern;
• and
• based on identifying a deviation between the detected near end crosstalk signal and the reference signal pattern, providing an indication that there is at least one open in the electric device.

A test device comprising:

• a test head connected or connectable to an electric device, the test device to perform a method comprising:
• applying a predetermined signal to a selected signal line of a plurality of signal lines of the electric device;
• detecting a near end crosstalk signal on at least one other signal line of the plurality of signal lines of the electric device;
• comparing the detected near end crosstalk signal with a reference signal pattern;
• and
• based on identifying a deviation between the detected near end crosstalk signal and the reference signal pattern, providing an indication that there is at least one open in the electric device.