Abstract: A network device includes a plurality of ports, a plurality of optical indicators, two or more packet processing circuits, and synchronization circuitry. The two or more packet processing circuits are to process packets communicated over the ports, each packet processing circuit to control a subset of the optical indicators to display status information relating to a subset of the ports. At least some of the status information is represented by blinking of the optical indicators. The synchronization circuitry is to synchronize at least one operational characteristic of the optical indicators among the two or more packet processing circuits.

Abstract: An automatic extraction device for extracting a liquid substance (e.g., oil) from plant material, is disclosed. The device comprising: an ethanol source, a mixing tank, in liquid connection with the ethanol source, comprising: an entrance for providing the plant material; a mixer, and an exit for extracting a mixture of the ethanol and the liquid substance, an evaporation system, in liquid connection to the mixing tank's exit, for evaporating the ethanol; and a condenser, for condensing the evaporated ethanol, the condenser. In some embodiments, the condenser may include: an entrance in gas connection with the evaporation system; a housing having a maximum external volume of at most 1 liter; and an internal array of heatsinks, located inside the housing, providing a surface-to-volume ratio of 4-0.5 [1/mm]; and a collecting tube, in liquid connection to the mixing tank, for collecting the condensed ethanol.