A method and system for coupling digital signals from a first location to a second location through respective signal lines includes a mode detector that detects each of the transitions of the digital signals. The mode detector determines respective propagation times of the signals through the signal lines based on the relative transitions of the signals. The mode detector then applies delay values to delay circuits that couple the signals to the signal lines with respective delays corresponding to the delay values. The delay values may be determined by coupling a predetermined pattern of test signals through the signal lines and determining which delay values allow the signals to be most accurately captured at the second location.