For a 4-bit barrel shifter, an intermediate signal is used which shifts by two bits, or passes the same data, based on the value of S1 .

Train dispatchers cannot directly control intermediate signals and so are almost always excluded from the dispatcher's control display except as an inert reference.

The invention filters an input signal to produce an intermediate signal which is then used to cancel energy in the output signal.

If a T cell receives an intermediate signal, then it will become a regulatory cell.

Network Rail's own latest plans involve new signalling (there are currently no intermediate signals anywhere between Settle Junction and Carnforth, the block section of more than 24 miles being the longest in the country and a consequent constraint on capacity) and other improvements for the sections of the line beyond Skipton.

The CNW went further and eliminated the wayside intermediate signals in the stretch of track between Elmhurst and West Chicago, requiring trains to proceed solely based on the 2-aspect cab signals.

Double Line Automatic Signalling utilises track circuits to detect the presence of trains in sections broken up by intermediate signals.

Combination Signals - These combine functions of a "Diverge to" signal with an "Approach Speed" signal and occur in areas of complex trackwork where there are no intermediate signals between one interlocking and the next.

Transponders that don't use an intermediate electrical signal (all-optical transponders) are in development.