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Computing (FOLDOC) dictionary
E-carrier system
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communications A series of digital transmission formats
promulgated by the ITU and used outside of North America and
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.