Optical cable otu
Several overhead sections are added to the client signal which together with the FEC form the optical transport unit (OTU). An optical transport network (OTN) is a digital wrapper that encapsulates frames of data, to allow multiple data sources to be sent on the same channel. This article compares OTN interfaces, specifically OTU1, OTU2, OTU3, and OTU4, highlighting the key differences between them. OTU stands for Optical Channel Transport Unit, and OTN stands for Optical Transport Network. Since the 1980s, synchronous optical network(ing)/synchronous digital hierarchy (SONET/SDH) has met these needs by providing protection and performance monitoring while supporting a flexible and transparent mix of traffic protocols including Internet Protocol (IP), Fibre Channel, Ethernet, and.
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