Neutral Direct-current Telegraph System

In telecommunication, a neutral direct-current telegraph system (single-current system, single-current transmission system, single-Morse system) is a telegraph system in which (a) current flows during marking intervals and no current flows during spacing intervals for the transmission of signals over a line, and (b) the direction of current flow is immaterial.

Famous quotes containing the words neutral and/or system:

    The lonely Earth amid the balls
    That hurry through the eternal halls,
    A makeweight flying to the void,
    Supplemental asteroid,
    Or compensatory spark,
    Shoots across the neutral Dark.
    Ralph Waldo Emerson (1803–1882)

    All who wish to hand down to their children that happy republican system bequeathed to them by their revolutionary fathers, must now take their stand against this consolidating, corrupting money power, and put it down, or their children will become hewers of wood and drawers of water to this aristocratic ragocracy.
    Andrew Jackson (1767–1845)