FIELD: radio engineering, communication.
SUBSTANCE: switchboard is equipped with a sensor which receives a reflectometer signal; the reflectometer measures the length of the cable connected into the port of a network device; the response time of the sensor and the time when measurement begins are compared; and the port of the switchboard connected to the port of the network device is determined.
EFFECT: identifying a port of a switchboard connected to a network device without setting up a connection between network devices.
12 cl, 1 dwg
