Synchronous Optical Network (SONET) is a North American standardized digital communication protocol for synchronous data transmission over optical fibers. In other words, SONET transmits and ...

Synchronous Digital Hierarchy (SDH) is a group of fiber optic transmission rates that transport digital signals with different capacities. SDH technology enables low-bit rate data streams to combine ...

Remember those World War II Navy movies where a sailor on one ship signaled to another by flashing Morse code with a large, shutter-equipped spotlight? The receiving ship then flashed the same message ...

Several important new standards for optical networking were adopted by the Geneva-based International Telecommunication Union (ITU) in November. The new standards provide the ability to combine ...