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Point-to-Point Communication Links: A Complete Guide
A point-to-point link is used when a permanent, dedicated connection is required between two locations. It’s a pre-established WAN communications path that securely connects two or more locations for private data services, without sharing that specific physical or logical path with other customers’ traffic. Point-to-point links are also commonly known by other names in the...
What Is PDH? Plesiochronous Digital Hierarchy Explained
It is the abbreviation for Plesiochronous Digital Hierarchy. The term “plesiochronous” comes from two Greek words: plesio, meaning “near,” and chronos, meaning “time.” In a plesiochronous network, the clocks in different network elements run close to the same rate but are not perfectly synchronized, so signal arrival times can drift slightly when multiplexing. It was...