E1

   A point-to-point, dedicated, 2.048Mbps communications circuit capable of supporting thirty-two 64Kbps channels used as 30 voice channels, 1 control channel, and 1 synchronization and framing channel. The European equivalent of North America's T1.

   E1 circuits carry more channels than the 24 channels used in T1 systems, and repeaters are required every 6000 feet when copper wire is used.