Installation and method for controlling signalling lights arranged in series
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United States of America Patent
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Oct 4, 2022
Grant Date -
Jan 28, 2021
app pub date -
Mar 18, 2019
filing date -
Mar 19, 2018
priority date (Note) -
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Abstract
An installation powers and controls a plurality of signaling lights arranged in series, each having at least one light source. The installation includes a unit with a primary power supply situated upstream for remotely programming or managing operation of the installation; a primary series circuit with a transformer for each signaling light; a control module for each signaling light; a secondary power supply circuit for powering the control modules, independent of the primary circuit; a first optical cable for bi-directionally connecting a first upstream module to the programming or managing unit; and a second optical cable for bi-directionally connecting a last downstream control module to the programming/management unit, with each control module being connected in series to an adjacent upstream module and to an adjacent downstream module by means of a respective bi-directional optical connection.
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