| 单词 | Table X-1: DSL Technology Comparisons |
| 释义 | Table X-1: DSL Technology Comparisons DSL Type ITU-T Max Rate Max Rate Max Reach Applications Standard Downstream Upstream ADSL G.992.1 (1999) 7 Mbps 800 kbps 18,000 ft Consumer-class Internet G.lite G.992.2 (1999) 1.544 Mbps 512 Mbps 18,000 ft Consumer-class Internet ADSL2 G.992.3, 12 Mbps 1 Mbps 18,600 ft Consumer-class G.992.4 (2002) Internet ADSL2+ G.992.5 (2003) 24.5 Mbps 1 Mbps 18,000 ft Consumer-class, SME Internet ADSL2-RE G.992.3 (2003) 8 Mbps 1 Mbps 20,700 ft Consumer-class Internet IDSL N/A 144 kbps 144 kbps 18,000 ft Consumer-class Internet SHDSL G.991.2 (2003) 4.6 Mbps 4.6 Mbps 6,000 ft. Business-class Internet VDSL G.993.1 (2004) 55 Mbps 15 Mbps 1,000 ft Voice, Data, Video VDSL2: 12 MHz G.993.2 (2005) 55 Mbps 30 Mbps 1,000 ft Voice, Data, Video VDSL2: 30 MHz G.993.2 (2005) 100 Mbps 100 Mbps 500 ft Voice, Data, Video See also ADSL, ADSL2, ADSL2+, always on, broadband, compression, downstream, DSLAM, G.lite, HDSL, high speed, IDSL, ITU-T, local loop, multiplexer, SDSL, SHDSL, splitter, telco, upstream, UTP, VDSL, and x. |
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