2B1Q
id:
2b1q-190-15530894
title:
2B1Q
text:
Two-binary, one-quaternary (2B1Q) is a line code used in the U interface of the Integrated Services Digital Network (ISDN) Basic Rate Interface (BRI) and the high-bit-rate digital subscriber line (HDSL). 2B1Q is a four-level pulse-amplitude modulation (PAM-4) scheme without redundancy, mapping two bits (2B) into one quaternary symbol (1Q). Symbol rate is half of data rate. A competing encoding technique in the ISDN basic rate U interface, mainly used in Europe, is 4B3T.
brand slug:
wiki
category slug:
encyclopedia
description:
Line code
original url:
https://en.wikipedia.org/wiki/2B1Q
date created:
date modified:
2023-12-25T15:51:26Z
main entity:
{"identifier":"Q221998","url":"https://www.wikidata.org/entity/Q221998"}
image:
fields total:
13
integrity:
14