| 摘要 |
It is described a network switch (100), comprising: plural communication ports (103, 105), each port having a first electrical output terminal (123) and a second electrical output terminal (125) for providing an electrical output signal between the first electrical output terminal and the second electrical output terminal, wherein the network switch is adapted to electrically switch off the electrical output signal of at least one communication port (103) of the plural communication ports. |
