QUOTE (Gordon H @ 8 Dec 2006, 12:54) <{POST_SNAPBACK}>It may be that 'C & D' are intended to be used as a low power (logic level) version of the track waveform for distribution to boosters.
Exactly right. A set 100 also has an 'E' connection that provides feedback of overload (short circuit) conditions, but the E connection is optional.
Exactly right. A set 100 also has an 'E' connection that provides feedback of overload (short circuit) conditions, but the E connection is optional.