Introduction to home weak current wiring in intelligent buildings
When it comes to weak current wiring, many friends may feel very strange, but they should be very familiar with friends engaged in weak current industry. So, how to connect the home weak current wiring in the intelligent building? Let's share with you the strategy of weak current wiring in smart buildings. If you are interested, you might as well have a look!
Introduction to home weak current wiring in intelligent buildings
1. The purpose of home weak current wiring is to share network, telephone, cable TV and other resources. It is best to have these three interfaces in the main room.
Network, telephone and cable TV household frequency division equipment are generally one in and four out (many are also expensive). If it is two rooms and one living room, network, telephone and TV interfaces can be reserved in the living room, master bedroom and secondary bedroom, TV interface in the restaurant and telephone interface in the bathroom. If there are more rooms, you can choose to reserve; You can also run out the wires first and put them in the weak current distribution box. If necessary, you can replace the plugs leading to each room. Audio and video are different. Although they can be shared by frequency division, they can only provide signals for one terminal at the same time at home. I don't think it's necessary to leave an interface in each room.
2. To meet the requirements of sharing and interworking, weak current wiring must use frequency division or switching equipment.
The switching equipment of the internal and external network of the network is a router (for LAN) or modem (for ADSL), that is, a cat. The price is about 300 yuan. The switching equipment of the internal network is a switch or hub. It is better to use a switch. The price is less than 200 yuan. The hub can be bought at 80-90 yuan now. There are routers with their own switches and cats with their own routes and switches in the market. The price is 300-500 yuan. It is recommended to use them. The telephone switching and frequency division equipment is a switch or junction box, which is also a good switch. The price is 100-200 yuan. The junction box is very cheap, but each room can't communicate with each other and can't bring more than 3 telephones; The frequency division equipment of TV is the frequency divider (Branch). Everyone should know.
3. Weak current lines shall adopt star wiring, radiating from switching and frequency division equipment to each port.
Considering the simple wiring construction and convenient maintenance, it is best to put all kinds of equipment in the same place. There are generally weak current distribution boxes at the door of new houses, and connectors of various lines are reserved in the distribution boxes; Some are not reserved joints, but the line turns around in the box and then leads to a room. It doesn't matter. Cut off the line in the box, connect the in socket of the switching frequency division equipment at one end and the out socket at the other end, and continue to use. We can transform the weak current distribution box ourselves, install switching and frequency division equipment, and pay attention to that most of the equipment needs electricity. We should leave a power socket in the weak current distribution box. The basic functions of the weak current distribution box sold on the market are not good, mainly in terms of network. Although there is one in and four out interface, it is only a distribution frame, which can not realize internal interoperability and multiple computers surf the Internet at the same time. It is still relatively expensive. It is not as expensive as DIY. Individual houses without weak current distribution box wiring is more troublesome, or put all kinds of equipment next to the registered permanent residence; Why don't you lead the entrance line together first.
4. The way to access the Internet is telephone direct dialing; ISDN is also called one-line communication; ADSL is also called super first-line communication; LAN is the Internet cable; And access to the Internet with cable TV lines and power lines.
The first two of them are outdated and need not be considered; The latter two are not popular, but only in some places. ADSL and LAN are the mainstream at present. The theoretical transmission speed of ADSL is 8m / s, and LAN can reach 100M / s. however, telecom generally only opens 512k-2m bandwidth. The actual use is also limited by the line conditions, the number of users and the width of Telecom outlet. Generally, it can not reach the maximum value. At present, it is not certain which is faster when ADSL and LAN are used, However, the Internet cable should be the development direction, and priority should be given if possible.
5. If you want to surf the Internet in different rooms at the same time, you have two options: one is to install a built-in switch router or cat, the other is to install simulation software on one of the computers and use one computer as a proxy server. The price is that if other computers surf the Internet, the proxy server must be on. The first method is recommended. In addition, cats given by ADSL Telecom generally do not bring switches and have to buy them separately
The above is the relevant knowledge introduced in the strategy of home weak current wiring in intelligent buildings. Is it helpful to you?