RP repeater(Repeater)

Physical layer repeater is a network connected device above. For the same two types of network interconnection, the main function of the data signal through the re-send or forward, to expand the network transmission distance. Repeater is a signal regeneration and restore the OSI model of network equipment, the physical layer device.
About repeater
repeater is connected to the network line, a device commonly used in the physical signals between two network nodes in the work of the two-way forward. Repeater is the simplest networking equipment, mainly to complete the physical layer functions, responsible for two nodes at the physical layer bit transmission of information, complete signal replication, adaptation and amplification in order to extend the length of the network. Because of loss, the signal power transmitted on the line will gradually decay, decay to a certain extent, will cause signal distortion, and therefore lead to reception errors. Repeater is to solve this problem and design. It completed the physical cable connections, on the attenuation of the signal amplification, the original data remain the same. In general, repeaters are connected at both ends of the same media, but some repeaters can also transfer to complete the work in different media. In theory, the use of repeaters is infinite, and therefore can be infinitely extended network. In fact this is impossible, because the network standard for the delay in both the scope of specific provisions, repeaters within the scope of this provision can only work effectively, otherwise it will cause network problems.
Repeater works in the physical layer of OSI is the center of all the nodes on the LAN, its role is to amplify the signal, compensation signal attenuation, support for long-distance communication.
Repeater works
Repeater is a small invention that is designed to give you the network signal in order to promote, so that they transmit farther.
As the transmission line noise, carrying the digital signal or analog information signal can only be of limited transmission distance, repeater function is to regenerate the received signal and transmit, thereby increasing the signal transmission distance. It is the most [1] simple network interconnect devices, connecting with a network of two or more network segments. Ethernet is often used as bus repeaters extend the cable length, standard Thin Ethernet maximum length of 185 meters each, up to 5, thus increasing the repeater, the maximum network cable length can be increased to 925 meters. In general, the repeater is part of both ends of the network segment, not the subnet.
Repeaters can connect two LAN cables, retiming and regeneration of the digital signal cable, and then send out
These features are the first layer OSI model - the typical functions of the physical layer. The role of repeater coverage area is to increase the local area network, [2] For example, the Ethernet standard specifies a single section of signal transmission cable maximum length is 500 meters, but the use of repeater cable connection 4, the Ethernet signal transmission cable up to 2000 meters. Some brands of repeaters can be connected to the cable segment with different physical media, such as thin coaxial cable and fiber optic cable.
Repeater section only the data on any cable sent a cable to another, and regardless of whether there are errors in the data segment of data or inappropriate data.