In this paper emergent background of HDSL tech- nology is analysed. Two line transmission codes,2B1Q and CAP used in HDSL are discussed in detail . Fi -nally the major feature,advantage and its spplications of HDSI .
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- 本文分析了HDSL技術(shù)產(chǎn)生的背景,詳細討論了應用于HDSL中的兩種線(xiàn)路傳輸碼:2B1Q和CAP,最后,闡述了HDSL的主要性能、優(yōu)點(diǎn)及其應用。