amplitude. Thus, the binary combination 10 becomes the quaternary symbol +3, 11 becomes +1, 01 becomes -1 and 00 becomes -3. The 2B1Q method is suitable for High Bitrate Digital Subscriber Line (HDSL) and for the VDSL method (Very High Speed Digital Subscriber Line), but is also used with ISDN, namely for the transmission of the primary multiplex rate of 2.048 Mbit/s. A further reduction of the step rate can be achieved by splitting the data stream into two channels.
Informationen zum Artikel
|Englisch:||2 binary 1 quaternary - 2B1Q|