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ITU-T G.992.5 (2005) Amd. 1 (07/2005)

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Amendment 1 to ITU-T Recommendation G.992.5 (2005) is the first amendment to the integrated ITU-T Rec. G.992.5 approved in January 2005. It specifies the following additions:1) Addition to clause 7 of new optional valid S and D values in the PMS-TC framer configuration. This permits the achievement of higher net data rates while satisfying a configured minimum impulse noise protection (INP_min);2) Addition to clause 8 of optional downstream spectrum shaping using time domain filtering only. This allows the transceiver to meet the PSD mask with filtering only in the time domain;3) A new Annex C-based ADSL2plus system operating in the TCM-ISDN environment with a downstream bandwidth of 2208 kHz and an upstream bandwidth of 138 kHz (Annex C.A) or 276 kHz (Annex C.B).4) Additions to Annex K to include net data rates corresponding to the new S and D values.5) A new Appendix VI which gives examples of PSD masks for operation according to Annex C.Revision marks are relative to the latest pre-published integrated version of ITU-T Rec. G.992.5.
Citation: https://handle.itu.int/11.1002/1000/8547
Series title: G series: Transmission systems and media, digital systems and networks
  G.900-G.999: Digital sections and digital line system
  G.990-G.999: Metallic access networks
Approval date: 2005-07-14
Provisional name:G.adslplus
Approval process:AAP
Status: Superseded
Maintenance responsibility: ITU-T Study Group 15
Further details: Patent statement(s)
Development history