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)

    Our system is the height of absurdity, since we treat the culprit both as a child, so as to have the right to punish him, and as an adult, in order to deny him consolation.
    Claude Lévi-Strauss (b. 1908)