G.992.3
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ITU G.992.3 is an ITU (International Telecommunication Union) standard, also referred to as ADSL2 or G.dmt.bis. It optionally extends the capability of basic ADSL in data rates to 12 Mbit/s downstream and, depending on Annex version, up to 3.5 Mbit/s upstream (with a mandatory capability of ADSL2 transceivers of 8 Mbit/s downstream and 800 kbit/s upstream).[1] ADSL2 uses the same bandwidth as ADSL but achieves higher throughput via improved modulation techniques. Actual speeds may decrease depending on line quality; usually the most significant factor in line quality is the distance from the DSLAM to the customer's equipment.
Asymmetric digital subscriber line transceivers 2 (ADSL2) | |
Status | In force |
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Year started | 2003 |
Latest version | (10/12) October 2012 |
Organization | ITU-T |
Related standards | G.992.5, G.992.3 Annex J |
Domain | telecommunications |
License | Freely available |
Website | https://www.itu.int/rec/T-REC-G.992.3/ |