Complete Protocol dictionary, glossary and reference

2B1Q: 2 Binary 1 Quaternary

2 Binary 1 Quaternary (2B1Q) is a full duplex physical layer encoding method used in ISDN and other digital communication technologies. In 2B1Q, two binary bits are encoded into one quaternary signal, doubling the effectiveness of transmission.

Standard Organization

ANSI

Related Document

T1.601