{
  "$type": "site.standard.document",
  "description": "The system (1) has a central control unit (2), an alternating current power supply (3), a direct current power supply (4), and a switchable switching unit (5) that is provided between the alternating current power supply and the direct current power supply. A pole reversal device (8) is associated…",
  "path": "/patents/977671",
  "publishedAt": "2014-03-05T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J13/1315",
    "CEAG NOTLICHTSYSTEME GMBH [DE]"
  ],
  "textContent": "The system (1) has a central control unit (2), an alternating current power supply (3), a direct current power supply (4), and a switchable switching unit (5) that is provided between the alternating current power supply and the direct current power supply. A pole reversal device (8) is associated with the direct current power supply. A coded information signal is transmitted via power supply voltage line (6) by the central control unit, where the signal is provided to a load (7) such as safety lamp, by the central control unit. An independent claim is also included for a method for controlling and/or monitoring an emergency/supply lighting system.",
  "title": "Emergency/safety lighting unit and method for controlling the same"
}