OPTICAL TRANSMISSION SYSTEM

摘要

An optical transmission system comprises a metropolitan core network (MET)
operated in a wavelength division multiplexing mode and connected via metro
connection devices (MAP) to access connections (AC1, AC2, ) to optical network
terminals (ONU) connected by means of a passive optical splitter (SPL). The
metro connection devices (MAP) contain regenerators and wavelength converters,
so that data regeneration takes place between the network terminals (ONU) and
the central management and switching unit (ZEN). This makes it possible to
cover distances around 100 km.