| 摘要 |
A method and apparatus with several embodiments for powering two Powered Devices (PD's) in a Power over Ethernet (PoE) system from a single computer network cable, where the cable is carrying power from both an endspan Power Sourcing Equipment (PSE) and a midspan PSE. The apparatus is a special type of PD that resides in the middle of the link segment and is hence referred to as a "mid-link PD". The mid-link PD utilizes power from one PSE and passes power from the other PSE along to another PD at the end of the link segment: This eliminates the need to install additional network cabling in order to power a second PD in a location where a first PD is already receiving power.
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