forward clear signal

См. также в других словарях:

• clear-forward/clear-back signal —    Signal sent in a forward or backward direction to announce that the called party has cleared …   IT glossary of terms, acronyms and abbreviations

• disconnect signal —    The on hook signal by which the calling and called stations notify the switching equipment that an established connection is no longer needed and should be released. See also clear forward/clear back signal …   IT glossary of terms, acronyms and abbreviations

• Railway semaphore signal — One of the earliest forms of fixed railway signal is the semaphore. These signals display their different indications to train drivers by changing the angle of inclination of a pivoted arm . Semaphore signals were patented in the early 1840s by… …   Wikipedia

• Traffic signal preemption — is a type of system that allows the normal operation of traffic lights to be preempted, often to assist emergency vehicles.[1][2] The most common use of these systems is to manipulate traffic signals in the path of an emergency vehicle, stopping… …   Wikipedia

• Automatic Block Signal — Basic Automatic Block Signals = Automatic Block Signal, or ABS, systems consist of a series of signals that govern blocks of track between the signals. The signals are automatically activated by the conditions of the block beyond the signal.… …   Wikipedia

• сигнал отбоя со стороны вызывающего абонента — — [Л.Г.Суменко. Англо русский словарь по информационным технологиям. М.: ГП ЦНИИС, 2003.] Тематики информационные технологии в целом EN forward clear signal …   Справочник технического переводчика

• international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… …   Universalium

• Media and Publishing — ▪ 2007 Introduction The Frankfurt Book Fair enjoyed a record number of exhibitors, and the distribution of free newspapers surged. TV broadcasters experimented with ways of engaging their audience via the Internet; mobile TV grew; magazine… …   Universalium

• Glossary of rail terminology — Rail transport Operations Track Maintenance High speed Gauge Stations …   Wikipedia

• Automated guided vehicle — The automated guided vehicle or automatic guided vehicle (AGV) is a mobile robot used in industrial applications to move materials around a manufacturing facility or a warehouse. Introduction Automated guided vehicles (AGVs) help to reduce costs… …   Wikipedia

• Automatic Warning System — The Automatic Warning System (AWS) is a form of limited cab signalling and train protection system introduced in 1956 in the United Kingdom to help train drivers observe and obey signals. It was based on a 1930 system developed by Alfred Ernest… …   Wikipedia