Molex on the follow-up work of cabling system acceptance

Source: Internet
Author: User
It is common for engineering operators who consider themselves to have a few years of construction experience to install the six-class copper system for the first time will be surprised to find that the acceptance of the project is so difficult to pass: the first time self-test down unqualified, need to rectify the proportion of sometimes up to scores, rather than the installation of the five-class copper system when the usual percentage; and rectification to qualified also difficult, Going through many times. Most of the engineering chambers facing this situation have explored whether there is a new approach to the installation of the six-class copper system, and a small number of people who are mentally arrogant may even wonder if the production quality of the products is up to six. Because the scene of the wiring system is affected by two aspects: product quality and the project's engineering standards.
  
In fact, any six types of products that are publicly stated and marketed in the market must be supported by an independent, authoritative third party certification to support them, and there will be projects in different regions or industries that have been bowed down, and have successfully passed the project acceptance. Contractors should look for reasons from themselves.
  
In the six-class copper system installation There is no new method, are installed in excess of five in the implementation of the construction code. However, the installation of the six-type copper cable system requires more stringent implementation of the construction code for the installation of over five types. This just hit the soft rib of the builders who did not easily pass the six class acceptance, because many of them, when installing the ultra-five copper system, did not strictly enforce these construction specifications, while the relatively tolerant super five masks their coarseness. Such a situation cannot be attributed to the contractors themselves: social environment, there is an end user or supervisor, because the professional knowledge is not enough, or because of well-known reasons, to the wiring system to take the so-called "open acceptance", that is, as long as the wiring system can open a certain or several applications, such as telephone can call, or hundred Gigabit Ethernet can run, it means that the wiring system passed through, the key is not to go through the field test tester. The reason is that wiring system can not be used alone, is in order to run some application protocols in the wiring system, of course, to open the test of the subject, the light to measure a pile of data what is the significance? This approach seems reasonable, and it is quite confusing to the unprofessional decision makers, and it is a great way to do so.
  
But in fact, a structured cabling system can do more than just meet some of the immediate application requirements of end users. The structural wiring system is installed between the building and the buildings, and its life expectancy, or exactly, its effective service life, is to be compared with the effective age of the building; the effective life span of the building is dozens of years, so the effective service life of the structured wiring system should also be taken into account. The cabling system should provide a wired transmission platform for the physical layer for all of its categories of application protocols that appear in this long effective service life. Please note that all of the application protocols that meet their categories are this includes not only a few application protocols that are currently selected by end users, but also other application protocols that are now available and that end users have no choice, including, in particular, those that have not yet occurred, but which, as long as they occur within the effective service life of the wiring system, All application protocols that conform to their categories. From this point of view, the so-called "open acceptance", only covers the current end user selected a number of application protocols, but not the existing, end users have no choice of other application protocols, but also did not have the existing, but the wiring system in the effective service life of the Application protocol , thus the effective service life of the structured wiring system has been greatly reduced, and the end users ' interests have been seriously compromised. (Computer science)
  
Why is a structured cabling system able to cover the application protocols that appear in its effective service life, especially if most of those applications are not yet generated? Is it so magical to compare with the years of architecture? Yes! The standard makers of structured wiring systems regulate their categories, like we are familiar with the five categories, super Five classes, to the nearest six classes; The application protocol's standard-makers will use this as the physical layer transmission basis, the specification future application protocol, the future application protocol will certainly conform to a certain wiring system category. In turn, the development of the application protocol to the physical layer transmission basis of the requirements, will be reflected in the structural cabling system of the standard forward. This is why it is necessary to recommend to end users The only reason for the latest standard six system of the current structured cabling system, since it should have lower categories of standards, such as five, five classes, that cover application protocols that are generated over a longer period of time.
  
So, how to ensure that a particular structured wiring system installed on site can cover the application protocols that appear in their effective service life? Very simply, there is only one way to use the wiring tester for this particular structured wiring system to test the site, rectification until all 100% through the design of the class standard, we call "test acceptance." It should be pointed out that any test in accordance with the proportional sampling of the full pass on acceptance, or full inspection but tolerate a small percentage of unqualified acceptance of the practice, are to the end user benefits of damage, is not desirable. Strictly required, wiring engineers should be more self-discipline, the test instrument due to the accuracy of the critical data also through the rectification of all elimination. Error location and fault analysis in the field rectification is the only way to accumulate the experience and the excellent construction technology in the field, and it can't be replaced by the training education. Easily through the Super five class acceptance, not easy to pass the six class acceptance of the project can almost certainly no test acceptance of long-term strict constraints to form a good construction standards.
  
Closely related to the acceptance method is the quality assurance of the structured wiring system after the scene is installed. After testing and acceptance of all 100% through the on-site installed into a structured wiring system in a sense that can be exempted from after-sale quality assurance responsibility, even if the construction contract has written constraints, it will not actually happen construction party responsibility. This is also a rigorous test acceptance of the end users and the two sides of the project to bring one of the benefits. However, the actual situation is often not only in the construction contract terms to undertake after-sale quality assurance responsibility, and must be successful acceptance of the project after the detention 5%-10%, or even more proportion of the "end of the project" in the end user, until the end of the warranty period. Sometimes the end of the payment is to make the project business very headache, extremely involved in human and financial resources, affecting the development of new business. This reflects the seriousness of the end-user's self-protection and prevention of the common, not-so-stringent acceptance, but it unfairly compromises the outstanding contractors. One of the ways to solve this problem for a good engineer is to seek a quality guarantee from the manufacturer directly to the end user for the on-site system. Compared with engineering, manufacturers are generally large, cross-regional and even multinational operations, long duration, financial soundness more solvency, and its quality assurance commitment is more willing to accept for the end user. Molex Enterprise Cabling Network Department in the wiring industry to launch the concept of the early time, warranty period of up to 25 years, the quality of the content contains triple content: The system of the products, the system's permanent link or channel performance, in particular, and warranty period, all of the compliance with its category of application protocol to ensure that it can be run, It is a perfect quality guarantee system for the on-site structured wiring system. The end user expressly obtains the benefit of a written guarantee: The free upgrade operation has not yet occurred, but as long as it is generated in the wiring system within the effective service life of the first 25 years, in line with its category of all application protocols. To the excellent construction quality for the end user to apply to this quality guarantee, but also excellent contractors to their own best proof.
  
Molex Enterprise Cabling Network Department has more than more than 20 years of professional wiring experience. Molex Enterprise Wiring Network division produces a wide variety of voice, data and video transmission products, providing cabling the overall solution. Molex's product lines include UTP, STP, SCTP, FTP, and fiber optics, all products and services meet or exceed industry standards, including ISO 11801, EN50173 and Eia/tia 568A and domestic standards in China.

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