Network cabling problems to note

Design phase

Engineering design will have a decisive impact on the whole wiring process, therefore, the designer should carefully and carefully, do a full investigation, collect relevant information (including some of the building drawings, decoration drawings and other works of information, as well as wiring information, etc.), and should take full account of economic conditions, application needs, The construction progress request and so on each aspect.

If the building is still in the preparation of a comprehensive wiring requirements, merchants can be based on the overall layout, the demand for the building design of the specific requirements, such as the upper and lower floors between the line of the channel specifications, embedded some pipelines and so on. These requirements can be reflected in the design of the building, in order to put some wiring in the construction at the same time to complete the project, to remove many of the late construction of the drawbacks, reduce duplication of work, improve work efficiency, so reasonable and easy to do.

If the original building on the basis of the same as the interior decoration Engineering synchronization of the situation is not the same, must be based on the actual reconnaissance and master the original building materials and decoration design situation to design. Wiring design and decoration design must be often communicated with each other so that they can be closely integrated. The coordination work in the early stage will directly affect the cooperation in the later construction.

The general design of material materials and layout arrangements with the demand and capital delivery has a direct relationship. If a unit for the purchase of the building caused by more tension wiring, and its office layout is divided into three floors, office departments located on the two or three floor, the first floor for the business hall. In contrast, the nodes are unevenly distributed and far away. Our solution is to use the layout of the hierarchical wiring. The two or three floor adopts the centralized type, all the cables of the information point are directly connected by the computer room. The first floor is divided into two blocks, placed in the hall a cabinet, from the computer room to pull eight trunk to the cabinet, the business information point of the Hall from the cabinet to connect the outgoing cable. From the computer room pull two main lines to the cabinet face Bay303 Switch Hub, the hub to bear the cabinet surface of the 20 workstations, and then from the computer room pull six trunk to the hub, the hub to bear the nearest information points, large color display and the first floor of the information points. In the power design, in the business point to place two distribution boxes, one for UPS power supply, one for ordinary mains, each air switch control large color display and information points. In the cabinet surface also placed three distribution boxes, respectively, to assume the power station. In the selection of products we chose the lower price of the AMP company's wiring products, not only to ensure the quality and to make users satisfied.

Another unit economy is more well-off, the requirement of the wiring is higher, therefore selects the AT&T full series of products. Plus the unit layout is more uniform, divided into one or two floors, so we use centralized wiring, all the information points of the line are directly from the computer room pull out, easy to centralized management, and leave a greater degree of redundancy, can be used for a long period of time. The power supply design also adopts air switch control, in practice, the air switch plays a multistage protection function.

Construction phase

Concrete construction stage involves many factors, the construction site command personnel must have a higher quality, the ability to make decisions often depends on the understanding of the design and wiring technical specifications master.

The project is a comprehensive work. Decorating and wiring at the same time, general wiring to enter the early time, many can do things first, such as digging trenches on the wall, drilling, pipeline laying and so on. So in order to fight for initiative, construction units should strive to start as soon as possible, and have plans to carry out construction, such as the first selection of a typical place to do some testing to determine the specific construction of some aspects, encountered problems as soon as possible to deal with the problem, the problem can not be solved by the design staff according to the site construction situation to

A very typical example is: In a project in the early stage of construction work late, and the construction personnel for the specific use of the material thought unprepared, plus on-site command personnel experience, the result is very slow progress. In addition, the construction personnel failed to deal with some technical problems, such as the wall used is hollow bricks, a strong knock on the entire crushing, not only make their own construction difficulties, but also caused dissatisfaction of the decoration department, so that the relationship between the two very uncoordinated, with each other very bad, so that the wiring department is busy, or can't keep up with the decoration progress In the middle of the discovery of the construction of irregular rework a few places, this is worse, so that the whole project progress is very not smooth, in the middle of some materials due to lack of some time delay, the whole project did not very ideal.

In several other projects, we learned the lesson. First of all, the relationship with the decoration department, so that the project in a coordinated atmosphere. However, due to the lack of timely supply and other reasons, or waste a lot of time, in this regard our work has yet to be further improved.
In the management of the embedded must take into account the difficulties of pull, to adopt a reasonable diameter pipe, especially in the case of a lot of change must try to set aside space, fully consider the next step of the work. At both ends of the pull line should be marked, and in a certain way to divide it into a bunch of good, to reduce the next step of the finishing work.
After the cable is put in place, generally to wait for the decoration department of other work completed before the next step to do the module, on the panel. In particular, you can do the next step after all the paint is finished. If the module is painted before the plastering of the lime water and other liquids will invade the module, resulting in quality problems, resulting in rework. Too early on the panel, it will make the panel dirty, increase the next cleaning workload.

Inspection and acceptance stage

After the wiring work is completed, the information points should be tested and checked. General can be used fluke and other special instruments for testing, according to the indicators of information points one by one test, if found that there are problems can be first recorded, and so on after the test of the individual problems of the place to check again. Testing at the same time do a good job marking work, the number of points at the information points and distribution racks with label paper marked and marked on the floor plan, in order to future management of the system, use and maintenance. General acceptance is found at both ends of the problem, this may be the wiring racks did not do a good job, may also be the module is not done, there is a possibility is the top board when the screws into the network cable caused by short-circuit phenomenon, and so on.

After all the tests have been completed, the floor plan is cleaned up and the correct marking chart is finally made for reference.