A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9


登录 注册




A device that receives, amplifies (and sometimes reshapes) and retransmits a signal. It is used to boost signal levels and extend the distance a signal can be transmitted. It can connect two or more LAN segments and physically extend the distance of a LAN. It immediately copies all bits arriving on each segment to all other segments, whether or not they are part of a valid frame.