IEEE 802.3-2005, section 2, clause 33.3.5.2 802.3at Amendment 3: DataTerminalEquipment (DTE) Power via the Media Dependent Interface (MDI) Enhancements
between data circuit-terminating equipment (DCE) and dataterminalequipment (DTE) 现行 DIN 66020-9 Interface between dataterminalequipment (DTE) and data circuit-terminating