A network allocator, commonly known as a cat, that translates a computer's digital signal into a pulsed signal that can be transmitted along a regular telephone line, which in turn can be received by another modem at the other end of the line and translated into a computer-readable Language. This simple process completes the communication between the two computers.
A router is a device that connects to various local area networks and wide area networks in the Internet. It automatically selects and sets routes according to the channel conditions, and sends the signals in the order of the best path. The router is the hub of the Internet and the "traffic police."
The distributor is the most commonly used component in the distribution network of cable television transmission systems, and is used to distribute the components of the signal.
A network switch (also known as a "network switch") is a network-expanding device that provides more ports for connection to more computers in a sub-network. With the development of the communication industry and the advancement of national economy information, the network switch market has shown a steady upward trend. It is characterized by high performance and price ratio, high flexibility, relatively simple, and easy to implement. Therefore, Ethernet technology has become the most important LAN networking technology, and network switches have become the most popular switches.
Both the distributor and the switch are the hubs of data transmission. The splitter amplifies the signal and transmits it to all other ports, ie the transmission line is shared. The replacement of the target port can greatly reduce the occurrence of conflicts and provide an exclusive line for both parties. In addition, most of today's switches also have a Layer 3 (network layer) routing function. Therefore, the use of switches can greatly improve the transmission performance of the network.
Network distributor means that the switch or HUB can connect a lot of network cables. The network cable is connected to the other end of the switch. Therefore, a computer can be connected to form a network. The network distributor switch has a virtual dialing function. The computer that accesses the Internet through the same router. It is to share a broadband account, and the Internet connection between people is mutually influential. For example, if one computer is downloading, other computers on the same router will obviously feel that the network speed is very slow. The computer on the same router is also in a LAN.
Manual Hydraulic Valve Remote Control Device
The manual valve remote control device consists of a fixed manual hydraulic pump, a hydraulic driver and a butterfly valve. The device takes a single valve as the remote control operation object, and has the characteristics of compact structure, simple operation, convenient operation and maintenance, etc. It is suitable for remote opening and closing control of special position valves in oil tankers, chemical tankers, oil platforms and other ships.
marine Controls device,Manual hydraulic valve remote control device,black marine controls device
Taizhou Jiabo Instrument Technology Co., Ltd. , https://www.taizhoujiabo.com