Precautions and construction details of Cat 6 network cable wiring Cat 6 cabling system can provide 2.5 times higher high-speed bandwidth than cat 5 in transmission rate and 300% higher ACR value than cat 5 at 100MHz.
4 after the pulling process, the redundant cables left at both ends shall be sorted out and protected.
The coil diameter shall not be too small.
The twisted pair pitch is calculated by the cable manufacturer.
Generally, the return loss will be more obviously in the unqualified state.
8.
For the cable with reel packaging, the reel shall be sleeved on the self-made stay rod.
Number of cables in bundled cables when any number of cables are bundled together in a long parallel length, the line pair capacitive coupling of different cables in bundled cables with the same pitch will significantly improve the crosstalk.
When winding the wire, it shall follow the original rotation direction.
The construction of category VI wiring system must be carried out in accordance with the specifications required by international standards.
Cable knotting when pulling the cable from the reel, pay attention to that the cable may be knotted sometimes.
Therefore, the author believes that the EIA / tia569 standard should be strictly observed in the installation of cables.
Now many places begin to use category 6 network cables for wiring and transmission of data and monitoring system.
At the setting out end, a part of the cable shall be pre pulled out from the reel box for extraction at the other end of the pipeline.
In terms of construction and installation, six analogies and more than five categories are also much more difficult.
Now many places begin to use category 6 network cables for wiring and transmission of data and monitoring system.
So what construction details should we pay attention to in the actual project? Problems needing attention in construction before construction, the construction drawings of other disciplines must be carefully consulted, especially the construction drawings of civil structure, water, electricity and ventilation.
If the cable is knotted, it should be regarded as damaged and the cable should be replaced.
Strictly abide by the construction specifications of trunking and ensure appropriate cable bending radius.
Hooks and ring cable ties are recommended.
The office space with dense information points and large bays in the building is characterized by large investment, high process requirements and difficult construction.
The cable tensile tension shall not exceed the cable tensile tension specified by the cable manufacturer.
Class VI construction precautions 1 since the outer diameter of class VI cable is thicker than that of general class V cable, in order to avoid cable winding (especially at the elbow), pay attention to the filling degree of pipe diameter when laying the pipeline.
Especially for high-performance communication cables and optical fibers, the installation quality has a significant impact on the opening of the system.
The current recommendation is to follow the manufacturer’s recommendations.
5 when arranging, binding and placing cables, the redundant cables shall not be too long, the cables shall not be superimposed and stressed, the coils shall be wound according to the trend, and the fixed cables shall not be tightened too tightly.
The cable bending radius avoids excessive bending of the cable, which will change the twist distance of the cable centerline pair.
Although the ISO and TIA super category 5 wiring standards specify the length of wire pair spread (13mm), they do not make such provisions for Category 6 wiring.
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For typical category 6 cables, the bending radius shall be greater than 50mm.
3.
Excessive tension will deform the twist distance of the wire pair in the cable, seriously affect the ability of the cable to suppress noise and the structured return loss of the cable, which will change the impedance of the cable and damage the overall return loss performance.
However, damage has occurred and will be detected during cable testing.
By minimizing the stripped sheath length, the twisted pair spacing inside the cable is ensured to achieve the most effective transmission path.
In addition, it will change the relationship between the pitches of the four pairs in the cable, resulting in the problem of noise suppression.
Good installation quality can ensure the good working state and stable working performance of the horizontal wiring subsystem in its working cycle.
If it is not necessary to peel off the cable sheath, the wire can be directly connected to the data center.
Pay attention to whether the cables at both ends can cover the cover plate without damaging the cables.
Characteristics of category VI cable 1.
7.
Unreasonable pipeline laying, nonstandard installation steps and inadequate management system will affect the test results of category VI wiring (including physical and electrical properties), and some will become difficult to repair faults, and even can only be replaced by laying a new link.
The effect of return loss is accumulated, and each too tight cable tie pair will increase the total loss.
At present, there are three methods for horizontal wiring: concealed laying of steel pipe, wiring duct in ceiling, steel pipe connection method from wiring duct to information point and concealed laying of ground wiring duct.
Only in this way can the shielding effect of the system be guaranteed and the design performance index of the whole system be achieved.
All types of work shall be organized according to the construction scheme and construction network plan.
Because the length of the horizontal route will have a certain impact on the level of the system, and the civil structure construction drawings, water, electricity and ventilation construction drawings have the greatest impact on the direction of the pipeline route of the horizontal wiring subsystem.
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If bent excessively, the pair may spread, resulting in impedance mismatch and unacceptable return loss performance.
5.
Cat 6 cabling system can provide 2.5 times higher high-speed bandwidth than cat 5 in transmission rate and 300% higher ACR value than cat 5 at 100MHz.
The cable sheath is stripped on the cable termination point, and the exposed pair from the sheath to the data center must be kept to a minimum after termination.
The pre pulled lines shall not be too many to avoid entanglement and encirclement of multiple lines on the site.
6 during the whole construction period, the construction shall be organized in strict accordance with the construction process.
The cable termination points of the pair shall be scattered, and the lay distance of each pair in the cable shall be as close to the data center as possible.
When using suspension wires to support cables, the weight of cables must be considered.
This is called “alien crosstalk”, and the best way to eliminate the adverse effects of alien crosstalk is to minimize the length of parallel cables.
The installation pressure will cause the installer to straighten the cable knot.
The construction tasks of this type of work shall be completed before the commencement of other subsequent types of work…
In the process of setting out, the tension shall be controlled.
Cable weight the weight of category 6 cables is about twice that of category 5 cables.
Generally, it is appropriate to place two class VI wires for the line pipe with an inner diameter of 20mm.
The cables, information sockets, jumpers, connecting wires and other components selected for the generic cabling system must be consistent with the selected type.
AutoCAD can be used to draw a three-dimensional detail drawing, indicating the direction and elevation of other professional pipelines and the specifications and models of various pipelines on the detail drawing, so as to formulate the construction scheme of optimal pipeline laying, so as to meet the requirements of shortest pipeline route and convenient installation.
It is recommended that each suspension line support point support up to 24 cables per bundle.
6.
Changing the twisted pair pitch will have an adverse impact on the cable performance.
TIA or ISO wiring standards specify the stripped sheath length.
The weight of 24 category 6 cables one meter long is close to 1.0kg, while the weight of the same number of category 5 or super category 5 cables is only 0.6kg.
Among them, concealed laying of ground wiring duct is suitable for higher-grade intelligent buildings.
Generally, the bending radius of the cable shall not be less than 8 times of the installed cable diameter.
If the cable is too tight, the stranded wire inside the cable will be deformed and its performance will be affected.
The cable compression shall avoid compressing the cable by making the cable tie too tight.
Too much stripped sheath on IDC will damage the next and FEXT performance of Cat 6 cabling system.
When bypassing other trunking up, down, left and right, the turning slope shall be gentle.
It shall be fixed on the trunking, ceiling or carton with wire card and marked.
If category 5 standard is selected, the cables, information sockets, jumpers, connecting wires and other components must be category 5; If the system adopts shielding measures, all parts selected by the system are shielding parts.
