SDH (Synchronous Digital Hierarchy): What Is Is, How It Works
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WebJul 6, 2023 · SDH, short for Synchronous Digital Hierarchy, is a standardized protocol used in fiber optic networks to transmit voice, data, and video traffic. What is Synchronous Digital Hierarchy? It’s a high-speed, synchronous network technology that allows data streams to be efficiently conveyed over vast distances.
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