E-carrier
TELEPHONE TRANSMISSION CARRIER SYSTEM USED OUTSIDE USA
E1-carrier; E1 carrier; E carrier; European format for digital transmission; E-carrier level 1
The E-carrier is a member of the series of carrier systems developed for digital transmission of many simultaneous telephone calls by time-division multiplexing. The European Conference of Postal and Telecommunications Administrations (CEPT) originally standardized the E-carrier system, which revised and improved the earlier American T-carrier technology, and this has now been adopted by the International Telecommunication Union Telecommunication Standardization Sector (ITU-T).