{
  "$type": "site.standard.document",
  "description": "Technique for providing power to a powered device (PD) over a cable having first (14,18) and second (16,20) sets of twisted pairs, such as signal pairs (14,18) and spare pairs (16,20). Power Sourcing Equipment (PSE) circuitry (220) is coupled via a first switch (240) to the second set, e.g. to the…",
  "path": "/patents/991244",
  "publishedAt": "2013-05-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J4/00",
    "LINEAR TECHN INC [US]"
  ],
  "textContent": "Technique for providing power to a powered device (PD) over a cable having first (14,18) and second (16,20) sets of twisted pairs, such as signal pairs (14,18) and spare pairs (16,20). Power Sourcing Equipment (PSE) circuitry (220) is coupled via a first switch (240) to the second set, e.g. to the spare pairs (16,20). A switch control circuit (260) turns the first switch off to enable the PSE circuitry to perform a prescribed operation in connection with the PD over only the first set (14,18), e.g. over the signal pairs (14,18), and turns the first switch (240) on to enable the PSE circuitry (220) to perform the prescribed operation in connection with the PD over the first (14,18) and second (16,20) sets.",
  "title": "Switching of conductor pair in power over ethernet system"
}