Single Pair HDSL(HDSL2), which was also called as the next generation of HDSL, can transmit T1 /E1 without repeaters using only one pair phone line.

 
  • 作为HDSL的下一代产品,单线对高比特数字用户环路(HDSL2)能利用一对双绞线无中继的传输T1/E1数据。
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