The design of this unprepossessing interface card is simple yet effective: on one side are ports which can be connected to equipment scattered around a factory, while the other side can be linked to the main computer. Thus is formed a small-scale closed network, through which staff in a control room can issue commands to equipment all over the factory.
這張外型並不起眼的介面卡，設計簡單卻實用，一面是連接埠，可接上散布工廠各處的設備，另一面則串連電腦主機，如此一來就形成一個小型的封閉網路，控制室人員不用全廠趴趴走，只要在電腦下指令管理工廠設備即可。