Superseded
Standard amendment
Historical
IEEE 802.3bt:2018
IEEE Standard for Ethernet Amendment 2: Physical Layer and Management Parameters for Power over Ethernet over 4 pairs
Summary
Amendment Standard - Superseded.
The maximum Powered Device (PD) power available is increased by this amendment to IEEE Std 802.3-2018 by utilizing all four pairs in the specified structured wiring plant. This represents a substantial change to the capabilities of Ethernet with standardized power. The power classification information exchanged during negotiation is extended to allow meaningful power management capability. These enhancements solve the problem of higher power and more efficient standardized Power over Ethernet (PoE) delivery systems.
The scope of this project is to augment the capabilities of the IEEE Std 802.3 standard with 4-pair power and associated power management information. The project will augment the methodology for the provision of power via balanced cabling to connected Data Terminal Equipment with 802.3 interfaces. Optional augmented power limit will be made available for certain structured cabling systems. Improvements introduced for 4-pair systems, excluding raising the power limit, are optionally enabled for 2-pair systems. Compatibility with existing equipment will be maintained.
The maximum Powered Device (PD) power available is increased by this amendment to IEEE Std 802.3-2018 by utilizing all four pairs in the specified structured wiring plant. This represents a substantial change to the capabilities of Ethernet with standardized power. The power classification information exchanged during negotiation is extended to allow meaningful power management capability. These enhancements solve the problem of higher power and more efficient standardized Power over Ethernet (PoE) delivery systems.
The scope of this project is to augment the capabilities of the IEEE Std 802.3 standard with 4-pair power and associated power management information. The project will augment the methodology for the provision of power via balanced cabling to connected Data Terminal Equipment with 802.3 interfaces. Optional augmented power limit will be made available for certain structured cabling systems. Improvements introduced for 4-pair systems, excluding raising the power limit, are optionally enabled for 2-pair systems. Compatibility with existing equipment will be maintained.
Notes
Superseded
Technical characteristics
| Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| Publication Date | 01/31/2019 |
| Edition | |
| Page Count | 291 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
| Brochures |
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Amendments modifies
Previous versions
16/07/2021
Superseded
Historical
28/05/2021
Superseded
Historical
24/02/2021
Superseded
Historical
13/03/2020
Superseded
Historical
21/04/2017
Superseded
Historical
14/10/2016
Superseded
Historical
29/07/2016
Superseded
Historical
15/07/2011
Superseded
Historical
30/10/2009
Superseded
Historical
30/10/2009
Superseded
Historical
16/10/2006
Superseded
Historical
07/09/2004
Superseded
Historical
26/08/2002
Superseded
Historical
08/03/2002
Superseded
Historical
28/09/1998
Superseded
Historical
12/10/1993
Superseded
Historical
09/11/1992
Superseded
Historical