<communications> 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.
(2000-03-10)
Nearby terms:
ec « EC++ « ECAP II « E-carrier system » Ecash » ECC » Eccles-Jordan circuit
