PROTECTION RECOVERY SWITCHING DEVICE IN A SINGLE CORE RING SHAPE NETWORK OF A WAVELENGTH DIVISION MULTIPLEXING MODE CAPABLE OF REDUCING CONSTRUCTION COSTS

摘要

PURPOSE: A protection recovery switching device in a single core ring shape network of a WDM(Wavelength Division Multiplexing) mode is provided to improve transmission quality and optical line efficiency using other wave bands between the base station nodes.;CONSTITUTION: Base station nodes(400,500,600) communicate with each main node through a WDM mode. Each base station nodes includes a transceiver and a line switching unit. The transceiver changes photoelectricity or electric light. The optical line switching unit includes an optical switch and an optical distributer. An optical line between the nodes is connected to an optical distributer input and output port which uses a single core optical fiber.;COPYRIGHT KIPO 2013