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2, rj45 module (modular). There are four basic types of modular jacks. The 8-pin modular jack is usually called "rj45" and the 6-pin modular jack is usually called "rj11". Sometimes, these "rj" devices are easily confused with something called usoc (univer salser vice ordering codes). "rj" means "registered jack," and each basic socket can be connected to a different rj. For example, a 6-pin socket can connect rj11 (1 pair), rj14 (2 pairs), or rj25c (3 pairs); an 8-pin socket can connect rj61c (4 pairs) and rj48c. The 8 cores (keyed) can connect rj45s, rj46s and rj47s. The fourth module socket is a modified 6-core version (modified module jack, mmj), which is a speech device designed by dec to connect dec. The integrated wiring module is used to terminate the cable and effectively connect with the jumper. Modules are used in distribution frames or home wiring boxes at the exit of the information panel.
3, distribution frame (pantch pannel). The patch panel is versatile and economical and practical, and can be used for horizontal and vertical wiring, or directly connected to a hub and horizontal wiring system. With 12, 24 and 48 ports to choose from. The terminal is 110idc, with labels on both front and rear sides for easy identification. The product was designed for several 19-inch installations. The standard 19-inch rack type distribution frame is usually used for commercial wiring. The home wiring adopts six small units, which saves space, is easy to install, and has low cost. And can be installed in a small home wiring box.
4, crystal head. This accessory product is not included in the standard integrated wiring design and installation. It will only be a part of the finished jumper. When the home wiring, the original jumper may not meet the length and other requirements, the user may own Buy crystal heads and cables and use a special crimping tool to make them.
5, the panel. This is a wide range of accessories that are widely used in home power and home appliances. When wiring, the panel is used to install the fixed module at the information exit location, and the domestic standard 86 bottom box is usually used. There are two kinds of single and dual ports. The common wiring panel is mainly installed with computer and telephone information outlets, and the multimedia information panel even has computers, telephones, catvs, and audio interfaces.
6, jumper (connection line). Also known as network cable. The copper jumper in the wiring is actually a short twisted pair crimped on both ends and used to complete the connection between the module, patch panel and active equipment. The common length of the jumper is 1 meter and 2 meters. 3 meters, 5 meters, 10 meters. It is recommended to use the original jumper for home wiring, because the original jumper process is rigorous and can withstand repeated plugging and unplugging.
7, optical fiber. An optical fiber is a small, flexible medium that transmits a light beam, centered on a light-transmitting glass core. Fiber optic cable consists of a bundle of optical fibers, simply referred to as fiber optic cables. Optical fiber cable is the most effective transmission medium in data transmission. It has the advantages of wide frequency band, good electromagnetic insulation performance and low attenuation. Common fiber optic cables include: 8.3μm core, 125μm outer layer, single mode fiber optic cable, 62.5μm core, 125μm outer layer, multimode fiber optic cable, 50μm core, 125μm outer layer, multimode fiber optic cable, 100μm core, 140μm outer layer, multimode fiber optic cable . 
Smart home cable type analysis
1, twisted-pair (twisted-pair). Twisted pair is now the most common transmission medium and consists of two mutually insulated copper wires, typically 1 mm in diameter. The two wires are twisted together in order to prevent their electromagnetic induction from interfering signals in adjacent pairs. The current twisted pair cable generally includes four twisted pairs, specifically white orange/orange, white blue/blue, white green/green, white brown/brown. The common twisted pair has box and shaft packaging and is 305 meters (1000 feet) long. At present, the domestic market that sells the most is the 305-meter-long cable carton package super five twisted pair.