Loop Reverse Battery

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• Loop start — In telecommunications, a loop start is a supervisory signal given by a telephone or PBX in response to the completion of the loop circuit, commonly referred to as off hook . When idle, or on hook , the loop is at 48V DC (provided by the CO or FXS …   Wikipedia

• Current loop — This article is about the electrical signaling schemes. For the oceanic phenomenon, see Loop current. A current loop describes two different electrical signalling schemes. Contents 1 Digital 2 Analog 3 Process control use …   Wikipedia

• LRB — Legislative Reference Bureau (Governmental » US Government) * Loop Reverse Battery (Computing » Telecom) * Leribe, Lesotho (Regional » Airport Codes) * Long Range Budget (Governmental » US Government) * Logistics Review Board (Governmental »… …   Abbreviations dictionary

• LRB — abbr. Loop Reverse Battery …   Dictionary of abbreviations

• 1ESS switch — The Number One Electronic Switching System, the first large scale Stored Program Control (SPC) telephone exchange or Electronic Switching System in the Bell System, was introduced in Succasunna, New Jersey, in May 1965[1]. The switching fabric… …   Wikipedia

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• Electric motor — For other kinds of motors, see motor (disambiguation). For a railroad electric engine, see electric locomotive. Various electric motors. A 9 volt PP3 transistor battery is in the center foreground for size comparison. An electric motor converts… …   Wikipedia

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