以太网供电技术的实施，给用户所带来的绝非只是消除了一根线缆的好处。虽然其初始成本较高，但毕竟是获得了新的技术、新的应用，多掏点银子也说得过去。但是，有没有想过，谁来为上头负责呢?千万别误解，这里所说的上头小是你的上司或上级部门，指的是支持以太网供电设备上联 The implementation of Power over Ethernet technology gives users more than just the benefits of eliminating a cable. Although its initial cost is higher, it is a new technology and new application after all. However, have you ever thought, who is responsible for the top do? Do not be misunderstood, here said the top small is your boss or superior department, refers to the support of Power over Ethernet devices