1, the purpose of the weak home wiring is to share the network, telephone, cable television and other resources, preferably the main room of these three interfaces are. Network, telephone, and cable TV households are generally divided into four devices (more and more, more expensive). If it is a two-bedroom office, it can be used in the living room, master bedroom, secondary bedroom, telephone, and TV interface. , The restaurant stays on the TV interface, and the bathroom stays on the phone interface. If there are more rooms, you can choose to reserve; you can also run the lines out first and place them in the weak electricity distribution box. If necessary, you can replace the plugs that lead to each room. Audio and video are different. Although they can be divided and shared, they can only provide signals for one terminal at home at the same time. I don't think it is necessary to leave an interface for each room. 4, the way to access the Internet there is direct telephone dialing; ISDN is also called first-line pass; ADSL is also called a super-line pass; LAN is the Internet access; there are cable and power line cable access. The first two are out of date and do not need to be considered; the latter two are not universal but only in individual places. ADSL and LAN are currently mainstream, the ADSL theoretical transmission speed is 8M/s for downlink, and the LAN can reach 100M/s, but telecommunications are generally Only the bandwidth of 512K-2M is opened. In practice, the line conditions, the number of users, and the width of the telecommunication exit are generally not used to achieve the maximum value. The ADSL and LAN are not necessarily fast at the time of use, but the Internet access should be a development. Direction, if possible, should be preferred. 5. If you want different rooms to access the Internet at the same time, there are two choices: one is to install a router or cat that owns the switch, and the other is to install simulation software on one of the computers and use a computer to act as a proxy server. The cost is if the other computers access the Internet. The proxy server must be open. The first method is recommended. There is also the use of ADSL telecommunications cats generally do not have to buy their own switches. 6, weak wiring network with 8-core cable; telephone telephone line; cable TV with coaxial cable. If there is a weak power distribution box, three wires can take one casing, which is more convenient. The network cable is eight-core. At present, there are four households that have no practical use and can borrow two telephone lines, but the effect is not as good as if they were used alone. The telephone line also has 2 cores, 4 cores and 6 cores, and the home is also useful for two lines. The quality of the cable is very important (especially the coaxial cable). My experience is that if signal interference or attenuation is found, the problem may be more than 70% on the line, and the possibility of faulty machines is less. But nowadays there are a lot of fake cables and bad goods, so you must pay attention when you purchase them. 7, weak electrical wiring to use a special plug and socket, network cable is used RJ45 head (also called amp head / crystal head) and RJ45 head panel and module; telephone line with RJ11 head and the corresponding socket; RJ45 head The installation requires a dedicated line of pliers and cable ties, and you must buy it if you want to install it yourself. And many weak electricity lines, sockets are not sold in the decoration market, there is also too expensive, you can go to Anshan West Road to see, a lot cheaper. Note that the Amp products on the market are basically not true. 8, simply talk about audio and video cabling. Audio equipment includes signal sources (CD, VCD, DVD, MP3, etc.), amplifiers and speakers, connected by audio cables. From the signal to the power amplifier is generally used single-five audio cable, also known as the microphone line; from the amplifier to the speaker is generally used double-five audio cable, also known as the speaker cable; install the speaker attention to use the matching terminal. From the amplifier to the main speaker is best direct wiring, do not use the terminal; can be used to surround, you can not, but the line should be as short as possible, as long as possible. The video equipment includes a signal source (VCD, DVD, video recorder, video camera, TV box, satellite receiver, computer or even game console) and playing terminal (television, computer, monitor, projector, etc.). There are many kinds of cables and interfaces for video input and output. There are D-Sub 15 pin interfaces (using the same VGA plug and socket as the computer); RCA (Composite Video) interface; S port (Five-Core Lotus); Component Video Port Wait. With that type of interface, D-Sub is best. In the future HDTV (High-Definition TV) devices use D-Sub ports and cables; RCA is the worst, but it is acceptable to us. If your home video signal source and playback terminal are not in one place (such as the use of a projector), you must wire the cable. The audio and video plugs can be bought but the outlet is hard to buy. Audio and video equipment are not allowed to use the socket connection. If it is not too aesthetically pleasing, it is best to connect cables directly between devices. 9, when wiring the cable in the cassette to leave 10 centimeters or so of the head, if you make mistakes when plug, you can also restore. If you have not considered the weak current alignment in the future, you can arrange the pipes and cassettes. Put the wire in advance in the pipe and leave a blank panel in the cassette; leave it in the distribution box for later expansion. If you don't have wiring during the decoration, there are requirements in this area. It doesn't matter. All kinds of wireless transmission equipment are now available, but it is relatively expensive and the standards have yet to be unified. It may be very popular in a few years. TV entrance decoration socket room TV decoration door price home decoration decoration living room door bathroom door Butt Weld Pipe Fitting Cross,Pipe Fitting Sanitary Cross,Black Steel Pipe Cross Jimeng Highstrength Flang-Tubes Group Co., Ltd. , http://www.jmpipefitting.com
2. Weak wiring must meet the requirements of sharing and interworking. Frequency division or switching equipment must be used. The internal and external network switching devices of the network are routers (for LAN) or modems (for ADSL), that is, cats, and the price is about 300 yuan. The exchange equipment of the internal network is a switch or a hub. The switch is better, and the price is less than 200 yuan. The hub is now available 80-90. In the market, there are routers with their own switches and cats with their own routers and switches. The price is 300-500 yuan, which is recommended. The exchange crossover equipment of the telephone is a switch or a distribution box. It is also a good switch. The price is 100-200 yuan. The distribution box is very cheap. However, each room cannot communicate with each other, nor can it bring more than 3 telephones. The frequency division equipment of the TV is Frequency dividers should be clear to everyone.
3, star wiring should be used for weak current lines, from the exchange, crossover equipment to each port radiation. Considering the simple construction of the wiring and the ease of maintenance, it is best to place various equipment in the same place. Today's new homes generally have a weak power distribution box, in the distribution box reserved for a variety of line connectors; some are not reserved joints, but the line in the box in a circle, and then lead to a room. It does not matter that the line is cut off in the box. One end of the door is connected to the IN jack of the switching crossover device, and the other end is connected to the OUT jack and used. We can reconstruct the weak electricity distribution box and put on exchange and crossover equipment. Note that most of the equipment must use electricity. We should leave the power outlet in the weak electricity distribution box. The basic functions of the low-voltage distribution boxes sold in the market today will not work. The main aspect of the network is that although there is an interface with four inputs and four outputs, it is only a patch panel, and internal interconnection and multiple computers cannot access the Internet at the same time. It is still relatively expensive. It's not as good as DIY. It is more troublesome for individual houses not to have wiring for weak electricity distribution boxes, or to place the various equipments next to the entrance to the account; or to bring the line to the home first.