The emergency lighting system shall be fed from the vehicle battery by at least one dedicated wiring circuit.
Los Estados miembros velarán por que las cerdas y cerdas jóvenes se críen en grupos durante el período comprendido entre las cuatro semanas siguientes a la cubrición y los siete días anteriores a la fecha prevista de partoEurLex-2 EurLex-2
Late in the 20th century, almost all connections between telephone exchanges were four-wire circuits, while conventional phone lines into residences and businesses were two-wire circuits.
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The four-wire circuit gets its name from the fact that, historically, a balanced pair of conductors were used in each of two directions for full-duplex operation.
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