SDH (Synchronous Digital Hierarchy)

SDH (Synchronous Digital Hierarchy) is a technology used to transmit large amounts of data over fiber optic networks in a reliable and organized way. It synchronizes the timing of all data signals, ensuring they are precisely coordinated, which allows for efficient and scalable communication. Think of SDH as a highly disciplined highway system for digital information, where data streams are arranged in standardized formats, making it easier to manage, route, and maintain various types of traffic like voice, video, and internet services simultaneously. This technology underpins modern telecommunications infrastructure, enabling fast and dependable connectivity.