What is the repeater used for?
Repeaters are designed to solve this problem. It completes the connection of the physical circuit, amplifies the attenuated signal and remains the same as the original data. In general, both ends of the repeater are connected to the same media, but some repeaters can also do the switching of different media. In theory, the use of repeaters is unlimited, and the network can therefore be indefinitely extended. In fact, this is impossible, because the network standards are specific to the delay range of the signal, the repeater can only work effectively within this set of regulations, otherwise it will cause network failure.
Repeater (RP) is a device that connects network lines and is often used for two-way forwarding of physical signals between two network nodes. The repeater is the most simple network interconnection equipment, mainly to complete the physical layer, is responsible for the physical layer of two nodes according to a transmission of information, copy, adjust and complete the signal amplification function, in order to prolong the network length. As a result of loss, the signal power transmitted on the line will be gradually attenuated, attenuation to a certain extent will cause signal distortion, and this will lead to a reception error.
A repeater (REPEATER) repeater is a connection device above the network physical layer. Applicable to the same two types of network interconnection, the main function is to transmit or forward data signals to expand the distance of network transmission. A repeater is a network device, a physical layer device for the regeneration and reduction of signals, and a OSI model
Repeaters (Repeater) work at the physical layer of the OSI, the center of all nodes on the LAN, which amplifies signals, compensates for signal attenuation, and supports remote communications. Repeaters are a small invention designed to push your network signals so that they can be transmitted farther. It's like a drink stand in a marathon. When the signal passes through a repeater, the network signal picked up a cup of drink, drink, the rest of the poured into his head, throw away cups, if convinced that no one saw them, jumped on a car. Due to the effect of transmission line noise, carrying digital signal or analog signal can transmit information in a limited distance, repeater function is regenerated and sending the received signal, thereby increasing the signal transmission distance. It is the most [1] simple network interconnection device, connecting two or more network segments of the same network. If the length of the cable Ethernet Repeater often use bus standard, thinnet each maximum length of 185 meters, up to 5, thus increasing the repeater, the maximum length of the cable network can be increased to 925 meters. In general, the network at both ends of the relay is a network segment rather than a subnet. Repeaters can connect two LAN cables, re - timing and regenerating digital signals on the cables, and then send them, which are typical functions of the first layer, physical layer, in the OSI model. The effect of relay is to increase the coverage area, such as Ethernet LAN [2], the maximum length of standard single signal transmission cable is 500 meters, but using the repeater cable to connect 4, Ethernet signal transmission cable up to 2000 meters. Some brands of repeaters can connect cable segments of different physical media, such as thin coax cables and fiber optic cables. The repeater sends only data from any cable segment to another cable, regardless of whether the data has erroneous data or is not suitable for the data of the segment.
