When it comes to integrated wiring, in fact, the most complicated thing is maintenance, but the most important thing in maintenance is to be able to clearly distinguish the identification and direction of the line. And this part of the work is best done in the construction stage, so as to provide convenience for subsequent maintenance. So, what are the skills of integrated wiring construction? What details should be paid attention to in the construction of integrated wiring?
What are the skills of integrated wiring construction
1. There is a plan for anti-interference
In the integrated wiring system, steel pipes should be used as far as possible for the pipelines of horizontal cables, and bridges should be used as far as possible for the laying of trunk cables. Indirect ground jumper works. In such a pipeline, we lay unshielded cables and large logarithmic cables in it, which can play an effective shielding role, reduce the impact of external interference on the signal transmission of the integrated wiring system, and make up for the deficiencies of the unshielded wiring system.
2. The trunking is best installed in the ceiling
When installing the wire duct, various considerations should be taken, try to install the wire duct in the ceiling of the corridor, and the branch pipes to each room should be properly concentrated near the manhole for easy maintenance. The centralized wiring construction should be done in front of the corridor ceiling, which not only reduces the wiring time, but also facilitates the protection of the worn cables and does not affect the interior decoration.
Generally, the corridor is in the middle position, and the average distance of wiring is the shortest, which saves the cost of cables, improves the performance of integrated wiring (the shorter the wire, the higher the quality of transmission), and try to avoid the wire slot entering the room, otherwise, it will not only cost the wire, but also affect the room decoration , which is not conducive to future maintenance.
3. To confirm the tension of the cable
When the cable has excess at both ends, it should be cut to the required length, not rolled up and bundled. The distance between the unwound segments at the joint of the cable should not exceed 2 cm. Too long will cause greater near-end crosstalk. During the certification test, NEXT NEXT will fail.
At the splice, the outer protective layer of the cable needs to be pressed into the splice and not outside the splice. Because when the cable is pulled by the outside world, the entire cable is stressed, otherwise the metal part of the cable and the connector is stressed, which will make the connection between the connector and the module unstable. In the construction of cable wiring, the pulling force of the cable is limited, generally about 9 kg. Please confirm the tension with the cable supplier. Excessive tension will destroy the symmetry of the cable twist.
4. The wiring method should be standardized
When some construction workers are making lines, they do not hit the lines according to the 568A or 568B line, but according to the 1, 2 lines to hit white and orange, 3, 4 lines to hit white and green, 5, 5, 6 lines are matched against white and blue, and 7 and 8 lines are matched against white and brown. Such lines can ensure smooth lines during construction, but their line indicators are very poor, especially at the near end. The crosstalk index is particularly poor, which can lead to serious signal leakage, difficulty in accessing the Internet and indirect interruptions. Therefore, the project manager must remind the production workers not to make such mistakes.
5. Distinguish the line sequence of large logarithmic cables
In actual construction, the connection problem of 25 pairs or 100 pairs of large logarithmic cables is often encountered, which is not easy to distinguish. Here, we will provide simple parameters for everyone. Take 25 pairs of cables as an example. The cable has five basic colors, the order is white, red, black, yellow, and purple, and each basic color includes five color sequences, namely blue, orange, green, brown, and gray. That is, all line pairs 1-25 are sorted as white-blue, white-orange, white-green, white-brown, white-gray...purple-blue, purple-orange, purple-green, purple-brown, purple-gray.
For 100 pairs of cables, use 25 pairs of cables as an example. The 100-pair cable is divided into four 25-pair groups with blue, orange, green, and brown ribbons, and each group is wound with each other in the above manner, and we can distinguish 100 wire pairs. In this way, we can hit the terminals of the 110 patch panel one by one. As long as the same general wiring sequence is used in the management room and the equipment room, and then the cable identification work is done, it can be easily used for transmission. phone.
What details should be paid attention to in the construction of integrated wiring
1. Front end:
For the front end, the label is the most important, otherwise the follow-up maintenance is very troublesome. The front end of the thread must be well labeled, and the logo must be clear! Especially the panel logo. A little trick is to use the paper strip on the panel to turn it over and handwrite it, so that it is not easy to fall off; or measure the size of the panel, print it with an advertising sticker, and then stick it. There is also a small suggestion: write the label on the top of the panel cover with an oil-based pen, cover the panel with the plastic cover of the panel, and then turn the panel cover over and cover it after the test is completed.
2. Distribution frame:
Now the general patch panel comes with handwritten label paper. If the construction period of a project is long or the construction site is damp, in order to avoid the label paper being damp and unable to write. It is suggested that the engineer can write the label paper to make the mark first, and then change the label paper printed by the machine when the test is completed.
3. Distribution frame:
The patch panel is very important. In most cases, the jumper label on the back of the patch panel is not made, or it is just handwritten with an oil-based pen. The editor strongly recommends that you use the number tube to mark the back of the patch panel. Using the number tube can basically ensure that the label is still clearly visible after 10 years. Some people have doubts, is this not a waste of time? In fact, it is not time-consuming to set the number tube. Before connecting the cable to the cabinet, the wires are usually divided and tied with cable ties. This is the time to set the number tube.
4. Jumper from switch to patch panel:
This part is not much different from the front end. If you have the conditions, you can use the label machine to print directly. If you don't have the conditions, you can also use another method, which is more beautiful and clean. (Measure the size, print it directly with good printing paper, then cut it open and tie it with transparent tape a few times. I usually use yellow A4 paper and print it with a laser. Both ends of the jumper should be marked.)
5. Wiring table of the cabinet:
Use A4 paper to make a wiring table, print it out by laser, first pass plastic, then punch a round hole in one corner, thread it with a cable tie, and put it in the cabinet. This facilitates future maintenance.
6. Optical fiber jumper:
There are a lot of signs mentioned above, so I won’t say much about the signs here. If you transfer from the bottom of the cabinet to another cabinet, it is recommended to use corrugated pipes, and the corrugated pipes are fixed on the cabinet with cable ties.
7. Bearing frame:
The load-bearing frame is very important. It is recommended that if possible, try to use angle steel as the load-bearing frame. Do not dig holes directly on the floor to lead out. The load-bearing frame is very convenient in construction and maintenance.
The above is the whole content of the skills of integrated wiring construction and the details that need to be paid attention to in the construction of integrated wiring. These are the details that need to be paid attention to in the construction of integrated wiring system, and they are not time-consuming and labor-intensive. Only by exerting one's own talents in the project, starting from the actual needs of customers and solving problems on the spot, can the project be done well.
