HDSL is the most established of the XDSL technologies.

HDSL是XDSL技术 中最早建成的一种.

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XDSL needs packet switching.

XDSL需要分组交换.

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POTS requires a special modulation and conversion schemes with HDSL, unlike other XDSL variations.

与其它的XDSL变型不一样,用HDSL时, POTS需要特殊的调制和转换方案.

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ISDN is circuit - switched technology, making it better for video conferencing than XDSL, which is packet - switched.

ISDN是一种电路交换技术, 使它比包交换的XDSL更 适合于电视会议.

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Applications : XDSL , HFC , Home PNA , STB , Cable modem etc.

电缆调制解调器等通信设备中.

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