Home decoration wiring first home wiring project Raiders

Today, the Internet has a profound impact on people's work, study and life. We use the network not only in our work units and schools, but also in our family life. For ordinary network users, you may only know the use, but you don't necessarily know the actual network cabling. In the unit and school, you don't have to care about network cabling, but you need to care about the network cabling in your home.
The concept of home integrated wiring Home wiring is a small project. The reason why it is not big is because such projects are too small for network companies, and generally do not want to accept such projects, unless it is a large-scale integrated wiring of the community; the reason is not small, because it is generally In terms of wire wiring in the renovation project, it is a very professional and complicated project. Unless it is a well-designed residential broadband cabling, otherwise the network cabling encountered in the ordinary new home renovation project will be solved by the owner himself.

Home network cabling is not a problem that can be solved by any decoration company or decoration engineering team. This is a lot of feelings. I have had troubles in computer network maintenance for home users many times. Many home network cablings are network cabling that is carried out in the renovation project. There are many problems left by professional network engineers. For example, the network cable is not in the correct order; the information module is wrong; some are more outrageous, and all the colored network cables and white wires are connected into two strands, like two wires; the cable design is combined with the strong electricity; the material is inferior and many more.

Nowadays, the home decoration is a big project. There are civil decoration and decoration, there are water and electricity gas pipes, and there is electricity and various wiring. In terms of wiring, in addition to wiring, cable TV cables and telephone lines, audio lines, video lines and network lines are also provided. In addition to the power line, these cables are called “weak power” and transmit various signals. We need to build a versatile, modern and intelligent home environment. The integrated wiring of weak electricity requires professional engineers to make comprehensive and reasonable planning and construction for the owners. Only in this way can the overall home decoration be beautiful, orderly, practical, convenient for current use and future expansion. Home Integrated Wiring System The home integrated wiring system is an electronic system that centrally controls the design of networks, televisions, telephones, multimedia audio and video. The integrated wiring system consists of a home information access box (or wiring box), a signal line and a signal port module. Various cables are centrally controlled by the information access box. The signal lines and ports are the "nerves" of various application systems. And "nerve endings." The function of the information access box is to centrally control the electronic signals input and output, and various lines can be jumped in the box to reach the path. After the integrated wiring is put into use, the line will be deployed as needed to control the specific properties and functions of the line, so that it is not necessary to change the line or even destroy the original decoration. The ordinary information access box can control at least three kinds of electronic signals: cable TV signal, telephone voice signal and network digital signal; while the higher level wiring box can control video and audio signals, if the community where the house is located provides corresponding services. It can also realize a series of functions such as electronic monitoring, automatic alarm, remote water meter and gas meter. Various signals have corresponding function interface modules in the information access box to manage the connection of the respective lines. The information access box management principle is very similar to the central cabinet of a computer network. The signal line transmits various electronic signals, including: twisted pair (network cable), coaxial cable, telephone line, audio cable, video cable, and various security and water and electricity gas automatic meter reading signal lines and control lines. The signal port is connected to the terminal device. Such as: TV, telephone, computer, switch, burglar alarm, automatic meter reading device.

The following is a schematic diagram of the composition of a typical ordinary household integrated wiring system:

The system is composed of an information access box, various cables and standard connectors for each information outlet. Each functional component adopts a modular design and a star topology. Each module and each line are independent of each other, and a single line. Failure will not affect the use of other information appliances. The distribution device of the home integrated wiring system is operated by a modular information access box. It mainly includes four modules: network module, telephone module, TV module, and audio and video module. Some capable families can also increase the monitoring of burglar alarms. Module. According to the actual needs of users, it can be connected, distributed, transferred and maintained on various functional modules to support various applications such as telephone, Internet, cable TV, home theater, music appreciation, video on demand, security alarm and so on.

[page] several major components of home integrated wiring

The modular modules of the home integrated wiring are the functional module strips of the information access box, which manage the connection of various signal input and output, and all the lines from the interface sockets in each corner of the room are connected to each corresponding functional module. On the back side, some modules have a front socket that is identical to the corresponding socket on the corner of the room. It also includes interface modules for each room (commonly known as: sockets).

1. Network module

The network module consists of a set of 5 types of RJ45 jacks, which mainly realize the jump connection to the computer network cable entering the room. The five types of network cables from the room information jack are placed on the corresponding socket on the back of the module. The RJ45 jack on the front panel is connected to the small network switch through the RJ45 jumper. We can install a small 5-port switch in the information box, preferably an iron-shell switch, which helps to dissipate heat through the cabinet. ADSL MODEM can also be placed in the box.

2. Telephone module

The telephone module is the same as the data module. It also uses a set of Category 5 RJ45 jacks to connect the external telephone line to the indoor output. The input and output are connected to the telephone socket of the room, and then the telephone is connected to the telephone. machine. This module uses Category 5 RJ45 interface standard, such as indoor wiring using five types of twisted pair, can also be used for computer network connection.

In the actual wiring project, the network cable is often used as the horizontal wiring of the telephone. When installing, a pair of blue and white wires of the four pairs of five twisted pairs are used as the telephone. When using, only the RJ45 jacks at both ends are inserted. RJ11 phone line is fine. That is to say, the network and the phone may be common and backed up by each other, and it is a two-pronged approach. (image 3)

3. TV module

The TV module is actually a cable TV distributor. As shown in Figure 4, the module consists of a professional-grade RF one-four splitter.

4. Audio and video module

The audio and video module can realize video and audio sharing in each room. The audio and video module of Fig. 5 is composed of four sets of video and audio screw terminal blocks, which are one input and three output, and the three dial switches respectively correspond to the communication control of the three groups of outlet lines, so that the signal output port and the signal input port are multiplexed or disconnected. .

The video and audio (view: V, right channel: R, left channel: L) are input to the signal line access port, and the output signal line is also connected to the corresponding output port. Each output port has a set of three-position toggle switches on the panel (corresponding digits "1", "2", "3", closed down, labeled "ON") to control 3 outputs respectively. The signal is connected to and disconnected from the input signal. This allows a VCD/DVD player to play video and audio in multiple rooms.

5. Data/voice socket

As mentioned above, in the practice of wiring engineering, a unified super five network cable routing method is usually adopted for data and voice wiring, so that both ends of the line are also terminated by the corresponding RJ45 information module. Therefore, the data/speaking socket is a unified RJ45 dual-supply outlet, one for the network and one for the phone.

6. Video/audio socket

The audio and video socket panel contains a video port, a left channel and a right channel (V/R/L).

7. Cable outlet

The following figure shows the connection effect diagram of the four major functional modules in the information access box of an ordinary household.

Planning, design and preparation before installation

The information access box is usually installed at the entrance of the house and embedded in the wall. The installation location of pipelines and sockets is determined according to the user's own living habits and the placement of home appliances and furniture.

Name of the relevant installation material:

Super Category 5 unshielded twisted pair;

75Ω coaxial cable and 75Ω TV socket;

Video cable and three-hole video and audio socket (for audiophiles, should choose good wire and socket, such as: gold-plated);

Super five RJ45 information socket;

PVC pipe, wall socket concealed box and other auxiliary materials;

The following picture shows the general wiring plan of a three-bedroom, two-bedroom family home:

Method for determining the amount of installation materials and quantity

Take the ordinary 3 bedroom 2 bedroom family home as an example, the following information points:

4 telephone jacks (living room + master bedroom + study + bathroom)

4 TV sockets (living room + master bedroom + study + room)

4 network data ports (living room + master bedroom + study + room)

3 audio and video outlets (living room + master bedroom + room)

[page] The pipeline is installed under the floor through a PVC pipe, and the socket is dark on the wall 30 cm from the ground. In the actual installation process, consideration should be given to leaving a margin, the concealed box generally has 30CM, and the information access box has 50CM. Assuming that the average distance between the various information outlets and the information access box is 25 meters, a simple calculation can be used to obtain a material fine.

Installation steps and methods

--Determine the location

——Pre-embedded cabinet

——Laying PVC pipe, pre-embedded concealed bottom box (through the iron wire for traction in the pipe, and the exposed wire at the bottom box and the information box)

—— wear various cables and logos

——Manage the line and tie the line (leave a margin)

—— Crimp and plug in RJ45, RJ11, 75Ω coaxial plug

--test

When the installation position is selected, when the cabinet is buried in the wall, the panel exposes the wall surface by about 1 cm, which is convenient for plastering later. The outlet holes on both sides should not be filled. When all wiring is completed and tested, it is sealed with lime sand. When threading, at least a certain length should be reserved in the information access box. The specific requirements are as follows: (calculated from the inlet hole) 25cm for the 75Ω coaxial cable, 30cm for the five-type twisted pair, the external telephone line Reserve 30 cm and the video cable is reserved for 30 cm.

to sum up:

In general, the use of home integrated wiring systems for home wiring has at least the following advantages:

1. Standard construction can ensure the use of weak electricity in home decoration now and in the future, and will not damage the decoration because of new applications in the future;

2, the use of unified control and management, in the future of daily life, the use, management, maintenance, expansion is very convenient;

3, system compatibility is very good, network cabling in the system, not only can support the network, but also support telephone, security alarm, strong scalability;

4, plug and play, as long as there are new home appliances and information equipment, can only plug in the corresponding interface, and the corresponding jumper in the information access box, you can form a path.

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