Synchronous Payload Envelope

March 2007
Network Dictionary;2007, p472
Reference Entry
An encyclopedia entry for "Synchronous Payload Envelope" or "SPE" is presented. It refers to a payload carrying portion of the Synchronous Transport Signal in SONET. SPE facilitates the transportation of tributary signal across a synchronous network. Oftentimes, this signal is assembled at the point of entry to the synchronous network and disassembled at the point of exit.


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