Superseded Standard

IEEE 802.3af-2003

IEEEE Standard for Information Technology - Telecommunications and Information Exchange Between Systems - Local and Metropolitan Area Networks - Specific Requirements - Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications - Data Terminal Equipment (DTE) Power Via Media Dependent Interface (MDI)

This amendment is based on the current edition of IEEE Std 802.3-2002 plus changes incorporated by IEEE Std 802.3ae-2002. Abstract: Support for optionally powering a 10BASE-T, 100BASE-TX or 1000BASE-T DTE device via the Power Interface (PI) using physical layers defined in Clauses 14, 25, and 40. The Power Sourcing Equipment (PSE) is located at an end point or mid-span, separate from and between the MDIs, and provides power to the Powered Device (PD) over the Link Section. The PSE detection protocol distinguishes a compatible PD from non-compatible devices and precludes the application of power and possible damage to non-compatible devices. The PSE monitors the Maintain Power Signature (MPS)and removes power when it is no longer requested or required. Optional management function requirements are specified.

Sponsor Committee
C/LAN/MAN - LAN/MAN Standards Committee
Learn More About C/LAN/MAN - LAN/MAN Standards Committee
Status
Superseded Standard
PAR Approval
2000-01-30
Board Approval
2003-06-12
History
ANSI Approved:
2003-09-22
Published:
2003-06-17

Additional Resources

Downloads
802.3af-2003_downloads.zip
Interpretation
802.3-2003_interp.zip

Working Group Details

Society
IEEE Computer Society
Learn More About IEEE Computer Society
Sponsor Committee
C/LAN/MAN - LAN/MAN Standards Committee
Learn More About C/LAN/MAN - LAN/MAN Standards Committee

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