e-carrier system

1 definition found

e-carrier system - Free On-line Dictionary of Computing (26 May 2007) :

  E-carrier system
  
     <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)