PRESENCE DETECTION USING LEDS IN RFID PHYSICAL LAYER MANAGEMENT SYSTEM

摘要

One embodiment is directed to an apparatus (such as a patching system or other communication device) comprising a plurality of ports and a plurality of light emitting diodes. Each port has a respective associated pair of light emitting diodes positioned near the port so that a line of sight can be established between the pair if no connector is attached to that port and so that the line of sight will be broken if a connector is attached to that port. For each pair, a first light emitting diode is operated as an emitter that emits light, a second light emitting diode is operated as a detector to detect the light emitted from the first one of the light emitting diodes, and the apparatus is configured to determine if a connector is attached to the associated port associated based on information generated by the second light emitting diode.