How to design and construct integrated cabling for complex LAN (1)

In enterprise LAN, especially in some large-scale and complex LAN groups, Integrated Wiring is a crucial part of the entire network formation process, the success or failure of the entire network. Generally, due to the complexity of integrated network cabling, a detailed cabling system design is required first, and then construction is performed according to the design drawings and requirements. In this way, we can achieve targeted construction in strict accordance with the design requirements to meet user needs.

I. Three major phases of Integrated Wiring

Integrated cabling in a large-scale building group is a complex system project that needs to be implemented step by step. The following is a brief description of several major phases of the Integrated Wiring project.

1. System Design Phase

The design of the wiring system will have a decisive impact on the entire wiring process. Therefore, the designers should be careful and make full investigation and research, and it is best to collect information related to the relevant buildings, such as construction drawings, decoration drawings, and other engineering materials. If the building already has wiring, the original wiring information should be collected. Then, we will fully consider the economic factors, application requirements, construction progress requirements, and other factors.

If the building is still under preparation, the requirements for Integrated Wiring can be put forward, and specific requirements can be put forward for the design of the building according to the overall layout and cabling requirements, for example, the channel specifications for cabling between upper and lower floors and some pipelines are proposed, which can facilitate future integrated wiring. Some of the cabling work that can be synchronized is best reflected in the architectural design diagram so that some cabling can be completed in the preliminary project at the same time of construction, avoiding many disadvantages of later construction, reduce repetitive work, improve work efficiency, and make it easier.

On the basis of the original building and the interior decoration project, the situation of Integrated Wiring is not the same. You must re-design the original building based on the actual survey and grasp the information of the original building and the decoration design. Communication between wiring design and decoration design must be maintained, which facilitates the work of both parties.

In general, the material selection, equipment grade and layout are directly related to the user's application requirements and capital investment. If the user's funds are relatively insufficient, you can choose some moderate solutions. Pay more attention to cost effectiveness in wire and equipment purchase, and the distribution of information access points can also be relatively concentrated, in this way, the investment in cables and equipment can be reduced to save money. If the user is more economical and has high requirements on wiring, you can choose higher-performance cables and equipment, and the information access points should be evenly distributed as much as possible, and be advanced as appropriate for future expansion.

2. Construction phase

In the specific phase of Integrated Wiring construction, due to various factors that may be involved, including communication with users and construction and decoration construction units, as well as command of the construction site, at the same time, comprehensive standards and technologies need to be mastered, so the command personnel must be highly qualified.

If the decoration and wiring construction are carried out at the same time, generally, the cabling construction team should make preparations earlier, such as dredging, drilling, and laying pipelines on the wall. In order to take the initiative, the cabling construction unit should strive to start construction as soon as possible and carry out construction in a planned manner. For example, you can select a typical place for some tests to determine the details of the specific construction, this will provide experiences and solutions for the full implementation of the following projects. The problem can be solved as soon as possible. If the problem cannot be solved at the moment, the design personnel can propose corresponding supplementary and modification solutions based on the on-site construction conditions.

For example, during the construction of a complex cabling project in a building, due to the late preparation work in the early stage, the decision-makers were not prepared mentally for the specific materials used, and the on-site command personnel were not experienced enough, the result progress is very slow. At the same time, due to lack of experience and technology, it may be difficult to deal with some technical problems, making the entire wiring project difficult. Another example is that the wall of a building is generally made of hollow bricks. If the method used is inappropriate or the wall is too heavy, the whole Brick may be broken, which not only makes the construction difficult, in addition, the relationship between the two Departments is very uncoordinated. Due to the poor coordination between the two parties, the wiring process cannot keep up with the decoration progress. The conflicts between the two parties may be further intensified, affecting the overall progress. Therefore, in this case, the first thing to do is to have a good relationship with the decoration construction team and even the following specific construction personnel) so that the project can be carried out in a coordinated atmosphere, many of the subsequent work can be coordinated and synchronized.

In addition, during construction, we must take into account the difficulties in wire pulling. We must use reasonable caliber pipelines, especially when there are many turns, we must try to leave gaps as much as possible, and fully consider the next step. Mark the two ends of the cables and divide them into bundles in a certain way to reduce the subsequent sorting.

After cables are laid in place, you can do the next step after other work of the decoration construction team, such as paint. If the module is installed before painting, some liquids such as lime water may be immersed in the module during painting, resulting in quality problems and rework. In the same morning, the Panel will be corrupted to increase the cleaning workload for the next step.

3. Check and Acceptance stage

After wiring is completed, test and check the information points. Generally, FLUKE and other special instruments can be used for testing, and one-to-one testing can be performed based on the marking diagrams of each information point. If any problem is found, record the problem first, after all tests are completed, check the problematic ones. At the same time, do a good job of labeling during testing. Mark the numbers at each point in the Information Point and distribution frame with a label paper and on the plan for future management, use and maintenance of the system. 3-14 shows the device and cable labels in a cabinet.

Generally, problems are detected at both ends of acceptance. This may be caused by the failure of the distribution frame or the failure of the module, or a short circuit caused by screw drilling into the network cable during upper panel.

After all the tests are completed, clear the plan and make a correct number chart for future reference. Then, it can be handed over to the user for acceptance. During the acceptance, the user generally asks the construction party to provide test technicians and equipment for Professional level and equipment reasons. At this time, the construction party must provide such equipment. Of course, because the wiring construction is also subject to a warranty period of more than 10 years), the user's test acceptance is only a test, only requires the construction party to ensure that the problem should be promptly resolved during the actual network installation. In addition, the test cannot detect all potential problems. The best test is to conduct the test in the real network environment when the specific application is fully launched. In addition, the entire construction drawing and number chart should be provided to the user.