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Integrated cabling is a kind of information transmission channel within or between buildings with modularization and high flexibility. Here the editor summarizes the ten common mistakes of network comprehensive wiring in weak power engineering for you. I hope you can avoid it as much as possible during the construction.

Integrated cabling is a kind of information transmission channel within or between buildings with modularization and high flexibility. Through it, voice equipment, data equipment, switching equipment and various control devices can be connected with the information management system, and at the same time, the integrated wiring of these devices can be connected with the external communication network. Therefore, network integrated cabling is a very tedious work, and at present, there is a widespread lack of relevant knowledge and experience among industry staff. For example, a large number of telephone engineers and electricians also take care of the work of network wiring.

Facts have proved that there are many hidden dangers in this practice, for the telephone system, the possibility of sudden errors can be tolerated, and in the data lines, it is necessary to prevent this from happening as far as possible. Here the editor summarizes the ten common mistakes of network comprehensive wiring in weak power engineering for you. I hope you can avoid it as much as possible during the construction.

First, there is no effective management of the line

Usually, it is thought that increasing the number of lines will help the existing system. The increase in trapezoidal racks and the ensuing rack-based line management do lead to higher operating costs. But it can also make daily maintenance work very simple. It should be noted that line management does not automatically end with the final safe completion of the project, and as more and more lines are added, the reality will change. Therefore, we should insist on identifying the cables, classifying them according to color, or taking some other type of special treatment to ensure that the relevant lines can be easily identified in any case.

Second, voice and data services use different lines

Considering the cost, many companies used to use different specifications and types of network cables in voice and data services. As the requirements for the line condition of the voice service are not very high, the standard can be achieved by using a single wire, so providing cheaper lines for the voice service can ensure that the data line can get a larger part of the budget.

Until today, although the cost of integrated cabling is still a large amount of expenditure, but the largest expenditure has become the cost of human resources, the line itself no longer accounts for the highest share of investment. In addition, with the popularization of voice telephone technology, voice service has become a project with data requirements dependent on data-level network cable support in many environments. In fact, if the company does have this demand, as long as the appropriate voice phone equipment is selected, the Ethernet switches built in the existing data lines and voice phone equipment can be used to meet the corresponding requirements, thus avoiding the waste of funds caused by repeated cabling.

In short, before the work begins, we cannot simply assume that the voice service only needs to be satisfied by using old Category 3 lines. If you need to deploy a separate line for the phone, you should ensure that its performance can reach the level that supports the data line.

III. Lack of forward-looking planning for the overall network

Gigabit networks are becoming popular, but many companies need to continue to use 100-megabit-to-desktop connections. For example, some companies need to move to a new office location, so they have to redeploy the network lines, so whether they should adopt the traditional network cable technology that can meet the current application, or choose a new network cable technology that can be continuously upgraded in the next few years will be in front of us.

What we need to pay attention to is that the cost of human resources is the highest part in the operation of the project. Although it does not seem reasonable to choose a more advanced wiring scheme in the implementation of the actual project, we suggest that we should consider using better quality products as much as possible. This will save your business from embarrassment in the face of higher network requirements for a long time. Therefore, to ensure that the network cabling technology used is not prematurely outdated, it is also a problem that network cabling personnel must consider.

Fourth, there is no reasonable planning for the new lines

When we need to use Ethernet switches in the network to deal with the newly added lines, we need to make it clear that without scientific and reasonable planning, the hasty use of Ethernet switches will bring unknown factors and instability risks to the whole network. In general, users using microswitches often only need to add one or two ports, so there is no need to plan for traffic. Due to the addition of additional ports, it may lead to problems. If the new service needs a lot of network resources to support, try to avoid bottlenecks. Therefore, it should be noted that when there is no absolute need to increase the number of switches and network ports, we should try our best to consider other ways to increase network capacity, such as adding new lines to expand the size of the network.

5. The network cable and the "interference" equipment are in the same area

In the real world, wires are not the only ones that can interfere with data lines. Fluorescent lamps, motors and related equipment that can produce electric or magnetic field interference can have a serious impact on the data transmission of network lines. Therefore, when wiring, we need to make sure that the line is far away from the area where these sources of interference are located.

VI. Do not consider the limitation of actual distance

Before starting cabling, you should first confirm the distance and range of connections that need to be implemented. Take the use of ordinary twisted pair for typical Ethernet cabling as an example, the distance in a gigabit network is limited to 100 meters. If the company chooses 10 gigabit or 40000 technology, it should be based on the corresponding specific design distance as the standard. For example, if a company plans to run a 10 Gigabit network over a distance of more than 100 meters, it must choose a network cable of 6A or higher.

VII. Violating the requirements of laws and regulations

Laws and regulations will play a decisive role in many ways, so if they do not meet the requirements of local regulations, it may bring security risks. For example, the use of PVC sheath lines in air-cooled environments is prohibited in most places. Because PVC produces toxic gases when it burns, this may cause harm to firefighters and other emergency personnel. If the deployment of low-voltage lines does not comply with local regulations, enterprises may face the serious consequences of being fined or even dismantled and re-cabled. Therefore, before the work begins, you should be aware of your responsibilities and ensure that all relevant contractors have met the requirements of local regulations.

Ignoring the testing of the circuit

After the wiring work is completed, a variety of tools should be used to test each line to ensure that they can meet the predetermined requirements. The work involved includes verifying the transmission distance and the specific specifications of the cable. In the case of a gigabit network, the lines also need to be verified to ensure that the appropriate requirements can be met.

IX. Parallel arrangement of network cable and cable

Data lines are transmitted in "twisted pair" (unshielded twisted pair) mode. The magnetic field generated by low voltage running through the wire is an important part of the communication chain. When the unshielded network line is parallel to the wire, there will be the problem of magnetic field interference, which will lead to a large number of repeated and garbled information in the transmitted data. In many cases, this will result in the failure of effective transmission between the two places, the transmission rate will decline rapidly, and the problem of repeated transmission will occur frequently.

If it is necessary to deploy a network cable near the wire, make sure that it passes vertically rather than in parallel. Once a case occurred in the late 1990s, the author encountered the situation that the newly installed coaxial cable could not work properly, this line was originally responsible for connecting two buildings very close to each other, after various fault troubleshooting, the author suddenly found that the overhead power lines and coaxial cables between the two buildings were wound together, resulting in serious electromagnetic interference and unable to transmit data normally.

Do not follow industry standards

It is well known that there are eight separate lines in each network cable. Therefore, as long as we can ensure that both ends of the line use the same mode and the same type, we can connect it at will. Facts have proved that this view is wrong. Therefore, there are reasons for setting industry standards, and the distorted lines and the impact of the external environment need to be taken into account in the wiring standards. If these standards are not followed in cabling, problems such as interference and inefficiency may occur, which will have a negative impact on the overall performance of the network. The standards mentioned here are EAI/TIA-568-An and B, which specify how data-like lines are deployed.

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