Four key points to pay attention to during network cabling

I. Improve understanding of the importance of network cabling

Only by fully understanding the importance of network cabling can we make the network cabling more systematic, standardized, and rational in the actual network cabling process. Structured and systematic network cabling for networks allows individual users and individual users to make full use of the rapidly developing technologies that have a substantial impact on all systems on any device. During the systematic arrangement of network lines, due to the use of shared standard mutual edge systems, it is convenient and quick to install, debug, replace and maintain communication equipment, in this way, the user's investment in this area can get an ideal return on efficiency.

The system layout of the network cable not only ensures the flexible scalability of the network and the scalability in the future, but also ensures the system maintenance workload and the system maintenance costs in the future, to the minimum possible extent. System Arrangement of network lines can also be seen as building a platform with good engineering performance for the entire network communication system, the Network Communication of the entire building or the entire communication system on this platform has great flexibility and versatility, and at the same time has a very good performance and price ratio. For example, according to the author's network wiring experience, system cabling of the entire floor or building can reduce network communication maintenance personnel to half of the original. Because the systematic and structured network cabling system is a star physical structure with diversified functions, it can be applied to network systems with different topologies. You only need to change the wiring on an appropriate node without moving the cables and devices. Therefore, when the network system changes, the rational arrangement of the network cable can better reflect its own advantages.

Ii. network products required for network cabling should be from the same manufacturer

Network products used for network cabling, such as common cat5e twisted pair wires or crystal headers, are weak signals transmitted. A slight carelessness may affect the overall performance of network communication. At present, there are many network products with various performances on the market. Some manufacturers may produce better network quality, and some manufacturers may produce more effective crystal headers, some manufacturers also produce the most cost-effective network interface modules. In order to combine all the advantages of these products, many network wiring staff often think that, if these network products are combined to route the network of a system, the signal attenuation of network communication may be minimized to achieve the best communication effect. In fact, this understanding is not correct. Once we integrate the high-performance products produced by different manufacturers into a single system, it will not be able to achieve the communication effect we imagined, on the contrary, the communication effect will become worse.

Because the impedance of the internal materials of network products of different manufacturers is different, the nuances in the impedance may have a great impact on the signal attenuation of the high-speed communication network, this affects the communication quality of the entire network communication system. Some people may say that they use network products from different manufacturers during network cabling. Does it seem that the speed has not decreased significantly? In fact, a system uses different network products and has little impact on the network switching speed of less than 10 MB. Sometimes it cannot be compared manually, however, if M or higher-speed network systems use different network products for network cabling, the final switching speed of the network will change significantly. Therefore, I suggest that we use the network products produced by the same manufacturer for network cabling of any network system, in this case, it is possible to obtain the communication quality assurance provided by the manufacturer for about 15 years.

Because the integrity and system of network cabling should be taken into account, this requires us to be careful and conscientious before wiring, to fully investigate and research and collect relevant network cabling materials, for example, the design drawings of buildings requiring network cabling, the matters to be considered for cabling, and the details should also take into account the construction progress, application requirements, and economic conditions of network cabling.

If a building is still in the middle of the building, the network wiring should be implemented according to the architectural design requirements of the building and the specific requirements of the building for network wiring and cabling, for example, we propose the channel specifications for cabling between upper and lower floors, and pre-embedded pipelines. These requirements can be reflected in the design drawings of the building, so that some network wiring can be completed at the same time as the construction, avoiding many disadvantages of Later Construction and reducing repetitive work, improve work efficiency and make it easier. If the Integrated Wiring is performed simultaneously with the interior decoration project on the basis of the built building, you should observe and analyze the existing building materials and the decoration design based on the actual situation for Integrated Wiring.

3. Do not use the first-line network

Many designers often use a network cable to connect to a device at the same time to save investment costs when deploying network lines. For example, they may split a pair of wires from the twisted pair to connect the phone, it is also possible to connect two pairs of lines to two network interface modules at the same time. This may increase the utilization of network lines, in fact, this multi-purpose first-line approach has a great impact on the efficiency of network communication. For example, to achieve multi-purpose first-line network, the cables that are twisted together must be unbundled, in this way, the newtwist angle of the twisted pair will be damaged, and the parameter of the near-end string winding will become larger. The increasing value of the near-end string winding will have a great impact on the transmission and switching speed of the network line; moreover, with the continuous upgrading of the network switching speed, the gigabit speed switching network is gradually becoming popular, while the gigabit network uses the full-duplex transmission switching mode, in this way, all eight pairs of cables in a network line are used. From this perspective, the first-line multi-use of the network line is not conducive to the future upgrade of the entire network system.

4. Strict network cabling Construction Quality

When wiring a large building or communication network system, it is not enough to rely solely on the power of computer technicians, for this reason, many organizations have invited construction engineers to participate in the entire network cabling system project. Most of these construction engineers have no knowledge about networks or computers, they often confuse network cabling with telephone lines, wires, and other cabling. Therefore, these workers do not consider the details of network cabling during network cabling, for example, the connection between the network line and the interface module, the connection between the network cable and the crystal head, and the connection of various cables in the network line, if these construction workers do not strictly construct the quality, if you do not pay attention to these details, the transmission performance of the network line will be greatly affected.

For users, the only way they can detect the layout of network lines is to simply use the network detection command "ping" to check the connectivity of the network when the network wiring is completed, as long as the network is pinged, the entire network wiring will be considered qualified. In fact, after the network wiring is complete, it is not a simple test to check whether the network is connected. You also need to check whether the transmission speed of the network reaches the nominal value of the network product, network cabling with poor construction quality will be greatly discounted in terms of transmission speed.

In addition, we must pay attention to the comprehensive inspection of the layout of the network cable system, for example, first through the network cable tester to see the connection sequence of the eight cables in the network line and test whether to connect, this test can also be easily performed for common users. You only need to purchase a set of detectors. When testing a large system network with high transmission requirements, you must also use a dedicated test to check the overall signal loss of point-to-point connections. If the loss signal is too large, the construction quality will definitely not pass off. In addition, you must test the near-end crosstalk value of the cable, we must test the near-end crosstalk between all line pairs. The worst line pair combination must meet the minimum performance indicator requirements to ensure the most basic guarantee of network system operation.

While testing the network cable, we also need to mark the number of each point with a label Paper at the Information Point and the distribution frame and specify it on the plan, in order to manage, use and maintain the system in the future. Generally, problems are detected at both ends of acceptance. This may be caused by the failure of the distribution frame, the failure of the module, or a short circuit caused by the screw drilled into the network cable during the upper panel. After the network system is fully marked and tested, we should reorganize the network cable planning diagram and make correct labels on it for future maintenance.