Tag: Trunk

E1 E1 is an ITU-T standard that defines the basic protocol and structure for transmission of TDM data over a physical circuit (most often the physical connections use twisted pairs and conform to G.703). It is widely used in Europe. An E1 primary rate trunk has a total of 32 time slots allocated within each frame of data. In TDM telephony applications, time slot 16 is used as a data channel (the D channel) and carries call setup, clear down and…

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TDM Stands for: Time Division Multiplexed This is one method by which multiple streams of data are combined together into a single stream of data for transmission down a cable or optical fibre. The combined streams may then be separated out again into individual streams at the far end of the cable as required. When digital data are merged using time division multiplexing, the resulting merged data stream is structured as a series of small blocks, called…

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