Cat6 cabling system installation details and development prospects

Category-6 Cabling systems are common cabling systems. They are also very important in cabling systems. Why can the category-6 Cabling systems develop so well, and the category-6 Cabling systems are mainly oriented to those groups, I believe you will have a deeper understanding after reading this article.

With the development of network technology, Gigabit to desktop has become a fact, and cat6 cabling systems have become more and more popular among users. However, in the current market, there are many different understandings of installing cat6 cabling systems.

To gain market share, many vendors are willing to promote cat6 cabling systems for all projects, rather than offering end users a reasonable reason to explain why they should choose cat6 cabling systems, instead of other media types. At the same time, due to the lack of information transmitted in the industry and the conflict between manufacturers' information, users often fail to make correct judgments and choices when selecting six types of cabling systems.

So what are the real driving factors for cat6 cabling systems? Under what circumstances do users need to select the cat6 cabling system? Molex believes that network transformation is the main driving factor for cat6 cabling systems. When selecting a cabling solution, You must select the Six-class cabling system solution that supports your current and future applications and is the most cost-effective.

As we all know, wiring is a network element of the entire network, and the entire network also includes switches, PCs, peripherals, servers and software. These network elements are combined to form a complete network. These factors must be taken into account when selecting the cabling type and media type for the cabling facility. According to the 1999 report released by IDG, 83% of network connections in the United States use Ethernet. The one hundred score ratio may have increased to more than 90%. In other words, Ethernet has become a de facto world standard in LAN. With the development of network technology, we can also clearly see the inevitable trend of gigabit desktop and 10-Gigabit backbone.

Most of the current communication media can handle the network transformation to the Gigabit protocol. Therefore, when the customer's network is switched to Gigabit Ethernet, there is no doubt that the most economical and efficient solution is the best choice for the customer.

For large organizations, some employees may be "users with high application requirements ". In the short term and medium term, this must be switched to Gigabit Ethernet to the desktop. Therefore, end users must include Gigabit Ethernet in their plans when considering future spending. 1000 Base-TX is not listed yet, but will be listed around next year. If the company's high application demand users switch to Gigabit Ethernet within this time frame, the deployment cost of 1000 Base-TX on Cat 6 Cabling systems is low.

If the network transformation strategy includes Gigabit Ethernet, users will benefit from the immediate installation of cat6 cabling systems. Although many users currently only deploy 10/100 Mbps Ethernet, the low-cost 1000 Base-TX standard will facilitate the deployment of Gigabit Ethernet in the future. If the company lease buildings for a long period of time, which may be 5 + 5 + 5 years, or use its own buildings, the company is likely to eventually switch to Gigabit Ethernet. Installing cat6 cabling now also helps deploy Gigabit Ethernet at a lower cost using 1000 Base-TX.

It is certain that the cost of the 1000 Base-T source device will continue to decline over time. When the company switches to Gigabit Ethernet, the cost of the NIC and switch will be half of the current cost. This is correct and specifies when the company will switch to Gigabit Ethernet. This may indicate that the cost advantage of 1000 Base-TX over the six-class cabling system will no longer apply.

In short, if you include Gigabit Ethernet in your transformation plan at a certain stage during the use of cat6 cabling systems, the deployment cost on cat6 cabling systems will be lower than that on cat5 cabling systems. If the company does not plan to use Gigabit Ethernet, The cat6 cabling system will only waste money. In this regard, we can use the cost model, compare 1000 Base-T and 1000 Base-TX for verification. End users can get the same data throughput at a lower overall cost, which is a real advantage.

For the installation of cat6 cabling systems, no new installation methods are listed in the cat6 specification of AN/NZS 3080, TIA or ISO. The installation method specified for five types of Cabling a few years ago also applies to six types of cabling systems. The difference is that, because the six categories have very strict performance standards, they have higher installation quality requirements. Any installation errors or shortcuts in the cat6 cabling system may result in barely qualified/unqualified tests. The company's cabling network Department strongly recommends that you strictly abide by the installation methods specified in the cabling standard document and the recommended practices we provide along with the product. The cabling network Department of Molex has been stipulating for many years that certified installers must adopt high-quality installation methods because the product and installation will have the same impact on the overall quality of the cabling system.

Important issues to be considered during installation include:

(A) Cable Tension

Do not exceed the cable tension specified by the cable manufacturer. If the tension is too high, the cable line in the cable will be deformed against the twisting distance, seriously affecting the ability of the cable to suppress noise (NEXT, FEXT and derivatives), and seriously affecting the structured ripple loss of the cable, which will change the cable impedance, damage overall ripple loss performance. These factors are important factors in the transmission of High-speed LAN systems, such as Gigabit Ethernet. In addition, this may cause the wire to be dispersed and may damage the wire.

(B) Bending Radius of cables

Avoid excessive cable bending, because this will change the twist distance of the cable midline pair. In case of excessive bending, the line pair may be dispersed, resulting in impedance mismatch and unacceptable ripple loss performance. In addition, this may change the relationship between the four wires inside the cable pair and lead to noise suppression. Each cable manufacturer recommends that the bending radius of the cable be no less than 8 times the diameter of the installed cable. For typical cat6 cables, the bending radius should be greater than 50mm. One of the most critical problems is the distribution cabinet. because a large number of cables are introduced into the distribution frame, to keep the cat6 cabling system clean, some cables may be pressed too tightly and bent too much.

(C) cable Compression

Avoid tightening the cable tie and compressing the cable. If the cable is too tight, the wire inside the cable will be deformed, affecting its performance. In general, the return loss will be more obvious in the unqualified state. With the accumulation of the Return Loss Effect, each over-tight Cable cable tie will increase the total loss. A better method is to ensure that no deformation of the Cable Sheath occurs when cables are bundled together by cable cabling. This is also very important in the distribution cabinet, because users usually tighten the Cable cable tie to keep the cable clean, or in the distribution cabinet, it is very difficult to wire the end contacts on the back of the distribution rack. We recommend that you use hook and ring Cable cable tie, such as Velcro cable tie.

(D) cable weight

Note that the cat6 cabling system of Molex enterprise has a weight of approximately twice that of cat5e on the 23rd (or 0.6mm in diameter. One meter long 24 cat6 cables weigh nearly 1.0, while the same number of cat5e or cat5e cables weigh only 0.6. The cable weight must be taken into consideration when mounting Cable Support is used. We recommend that you support up to 24 cables per bundle at each hanging Cable Support Point.

(E) cable knots

Note that cables may sometimes be knotted when pulling cables from the scroll. If the cable is knotted, the cable should be considered damaged and the cable should be replaced. Installation pressure causes the installer to straighten the cable. However, the damage has occurred and will be found during the cable test.

(F) Number of cables in bundle Cables

When any number of cables are bundled together with a long parallel length, the wires of different cables in a bundle with the same twist distance are coupled with capacitance (such as the Blue Line to the Blue Line ), this will significantly improve crosstalk. This is called "external crosstalk", and this indicator remains to be standardized or precisely defined by Cabling Standards. The best way to eliminate negative effects of external crosstalk is to minimize the length of long parallel cables and install bundle cables in pseudo-random mode.

(G) strip the cable jacket

On the Cable End contact, the line pairs exposed from the outer skin to the IDC after the end connection must be kept to a minimum. There is no absolute need to strip the cable jacket, but it can easily connect the wire to the IDC. The TIA or ISO cabling Standard specifies the stripped Jacket length. By minimizing the length of the stripped jacket, the cable's internal line pair distance can be maintained to achieve the most effective transmission path. The jacket peeled off on the IDC will damage the NEXT and fext performance of the cat6 cabling system.

(H) wire pair split

At the end of the cable, the twist distance of each line pair in the cable should be as close as possible to the IDC. The cable pair twisting distance is calculated by the cable manufacturer. Changing the cable twisting distance will adversely affect the cable performance. Although ISO and TIA cat-5e Cabling Standards define a wire pair with a split length of (13mm), they do not provide such provisions for cat6 cabling systems. The current recommendation is to comply with the suggestions provided by the manufacturer. In case of an incorrect order of contacts and ring wires, adding a pair of wires is better than removing a pair of wires to ensure alignment with the relevant IDC.

(I) Ambient Temperature

The TIA and ISO standards Conference raised this environmental issue. Of course, in the past, it has caused problems in category 5 and Category 5. The industry believes that this is a much important issue in Category 6 Cabling systems. The ambient temperature of the installation cable does affect the transmission characteristics of the cable. If possible, avoid high-temperature environments, such as> 60? C. If the roof on the ceiling is exposed in direct sunlight, this can easily happen. Generally, the attenuation of the cable increases when the temperature increases.

As you can see, currently, behind the six types of cabling systems is not just bandwidth needs or vendors that are good at lobbying. The real demand for installing cat6 cabling systems is the business needs of the company's network transformation. During the installation process, although the installation method specified for cat5e cabling is also applicable to cat6 cabling systems, cat6 has strict performance standards, so it has higher installation quality requirements.

1. Application of shielding technology in Integrated Wiring System
2. Analyze the relationship between Integrated Wiring System and intelligent technology
3. Brief Introduction of cable cabling system parameters and tests
4. Detailed explanation of wiring construction requirements
5. Specific problems of integrated network cabling should also be analyzed