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Work item:
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G.984.3 (2014) Amd.2
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Subject/title:
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Gigabit-capable passive optical networks (G-PON): Transmission convergence layer specification - Amendment 2
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Status:
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Consented on 2025-10-24
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Approval process:
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AAP
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Type of work item:
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Recommendation
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Version:
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New
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Equivalent number:
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-
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Timing:
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2025-10 (Medium priority)
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Liaison:
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-
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Supporting members:
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-
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Summary:
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Recommendation ITU-T G.984.3 describes the transmission convergence layer for gigabit-capable passive optical networks – a family of flexible access networks capable of providing a range of broadband and narrow-band services, operating at the rates of 2.48832 Gbit/s downstream and 1.24416 or 2.48832 Gbit/s upstream. This Recommendation includes the specifications of the following:
• gigabit PON transmission convergence (GTC) layer framing;
• upstream time division multiple access mechanism;
• physical layer operation, administration and maintenance (OAM) messaging channel;
• principles and signalling mechanism of the upstream dynamic bandwidth assignment;
• optical network unit (ONU) activation method;
• forward error correction;
• security.
This Recommendation forms an integral part of the G.984-series of ITU-T Recommendations that, together, specify a single coherent set of access transmission systems.
Amendment 1 provides necessary extensions to support Class D ODN. Amendment 2 implements the TC layer consistency updates across the ITU-T PON specifications including Deactivation Reason Codes and Forgotten ONU timer.
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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| ITU-T A.5 justification(s): |
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First registration in the WP:
2025-05-19 14:57:34
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Last update:
2025-11-05 17:40:03
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