Synchronous Digital Hierarchy (SDH) definition
Synchronous Digital Hierarchy (SDH) means a digital hierarchy providing a means to manage, multiplex and access various forms of digital traffic using a synchronous transmission format on different types of media; the format is based on the Synchronous Transport Module (STM) which is defined by CCITT Recommendation G.703, G.707, G.708, G.709; the first level rate of SDH is 155.52 Mbit/s;
Synchronous Digital Hierarchy (SDH) means a standard technology for synchronous data transmission on optical media that allows interworking of transmission products from multiple vendors.
Examples of Synchronous Digital Hierarchy (SDH) in a sentence
The Data Access Services may include traditional Synchronous Digital Hierarchy (SDH) and Ethernet options, and may also include wireless options.
Fibre uses Synchronous Digital Hierarchy (SDH) to provide a “self healing” network, which means less downtime and more reliable service.
For each customer connection, AAPT uses two pairs of fibre, each on a different direction on a Synchronous Digital Hierarchy (SDH) ring.