Title :
The 2B1Q line code for the local loop: genesis and transceiver implementation
Author :
Adams, Peter F. ; Cox, Simon A.
Author_Institution :
British Telecom Res. Lab., Ipswich, UK
Abstract :
The genesis of the 2B1Q line code for ISDN basic rate access over metallic pair local loops is described. The reasons why 2B1Q was chosen for the emerging American National Standards Institute (ANSI) interface standard are outlined and the impact of the standard specification on transmission performance and the implementation complexity of transceivers is discussed. 2B1Q provides excellent performance with potentially low complexity of implementation
Keywords :
ISDN; codes; subscriber loops; transceivers; 2B1Q line code; ANSI; American National Standards Institute; ISDN basic rate access; implementation complexity; interface standard; local loop; metallic pair local loops; transceiver; transmission performance; ANSI standards; Circuits; Code standards; Crosstalk; Decision feedback equalizers; Laboratories; Modulation coding; Telecommunications; Transceivers; Very large scale integration;
Conference_Titel :
Subscriber Loops and Services, 1988. Proceedings, ISSLS 88., International Symposium on
Conference_Location :
Boston, MA
DOI :
10.1109/ISSLS.1988.10623
