[802.3_4PPOE] Text for discussion of PSE definition

[Geoff Thompson <thompson@xxxxxxxx>]

For use in this morning's comment resolution meeting

All text has been pruned of underlines and strikeouts.

TEXT FROM CURRENT DRAFT

1.4.338 Power Sourcing Equipment (PSE): A DTE or midspan device that provides the power to a single link section. PSEs are defined for use with two different types of balanced twisted-pair PHYs. When used with 2 or 4 pair balanced twisted-pair (BASE-T) PHYs, (see IEEE Std 802.3, Clause 33 and Clause 145), Power over Ethernet is intended to provide a single 10BASE-T, 100BASE-TX, or 1000BASE-T, 2.5GBASE-T, 5GBASE-T, or 10GBASE-T device with a unified interface for both the data it requires and the power to process these data. When used with single balanced twisted-pair (BASE-T1) PHYs (see IEEE Std 802.3, Clause 104), Power over Data Lines is intended to provide a single 100BASE- T1 or 1000BASE-T1 device with a unified interface for both the data it requires and the power to process these data. A PSE used with balanced single twisted-pair PHYs is also referred to as a PoDL PSE.

ALT 1, minimum pruning

1.4.338 Power Sourcing Equipment (PSE): A DTE or midspan device that provides the power to a single link section. PSEs are defined for use with two different types of balanced pair PHYs. When used with 2 or 4 pair balanced twisted-pair (BASE-T) PHYs, (see IEEE Std 802.3, Clause 33 and Clause 145), Power over Ethernet is intended to provide a single end station with a unified interface for both the data it requires and the power to process these data. When used with single balanced pair (BASE-T1) PHYs (see IEEE Std 802.3, Clause 104), Power over Data Lines is intended to provide a single end station with a unified interface for both the data it requires and the power to process these data. A PSE used with balanced single twisted-pair PHYs is also referred to as a PoDL PSE.

ALT 2 max pruning (My preference.  This is more like a DEFINITION with pointers to the specification)

1.4.338 Power Sourcing Equipment (PSE): A DTE or midspan device that provides the power to a single link section which may also carry data (for 2 or 4 pair systems, see IEEE Std 802.3, Clause 33 and Clause 145; for single pair systems, see IEEE Std 802.3, Clause 104).