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Meaning of E-CARRIER SYSTEM

 
Computing Dictionary
 
 Definition: 

A series of digital transmission formats promulgated by the itu and used outside of North America and Japan.

The basic unit of the E-carrier system is the ds0, which has a transmission rate of 64 Kbps, and is commonly used for one voice circuit. The e1 format consists of 32 DS0 channels, for a total capacity of 2.048 Mbps. e2, e3, e4, and e5 circuits carry multiple E1 channels multiplexed, resulting in transmission rates of up to 565.148 Mbps.

The E-carrier system is similar to, and compatible with, the t-carrier system used in North America, but has higher capacity since it uses out-of-band signaling in contrast to the in-band signaling or bit-robbing used in the T-system.

 

 

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