Henan Kexin Cable Co., Ltd. thinks:
These terms represent different evolutionary processes of the wiring transmission media standard. The five-category category should be more advanced than the five categories, and the category six and category five innovations. However, technological infrastructure equipment has been used frequently for decades. When tailored to suit your needs, you must avoid blindly following the trend in order to achieve the economic benefits. Once a wrong bet is placed, the huge investment in equipment will go down. Even if it is reluctant to relocate, long-term maintenance costs will cause heavy financial pressure on the company.
Select the weight of the wiring media standard. On the one hand, it is necessary to assess its own actual needs, the maturity and stability of different technology standards, and on the other hand, it should also have a long-term perspective and reserve a certain amount of room for expansion so that “they can attack, retreat, and defendâ€.
Looking around at present, if the technology maturity, equipment support, system cost, technical support, and even the development trend of medium and long-term communications, the first six categories of standards have the highest economic efficiency, and the six categories are expected to maintain their unique advantages over a long period of time in the future. .
In order to cope with the ever-increasing communication demand, enterprises all over the world are actively transforming the existing LAN from the existing Ethernet technology specification to the Gigabit Ethernet environment. The five or more types of cabling media that used to dominate the market may not continue to satisfy thousands. More than trillion of network transmission needs. Since the six types provide a transmission bandwidth that is higher than that of the super-five systems, basic conditions are provided for the application of low-cost Gigabit Ethernet devices that use simpler transmission methods in the future. Furthermore, for Gigabit Ethernet, six kinds of cabling can make the network in the harsh environment, still guarantee the error rate index of the transmission, and take advantage of the unchanged transmission performance.
Everyone may ask, is technology application not to emphasize "advance"? In order to catch up with the rapid development of science and technology, why do companies not leapfrog the challenge and directly adopt super-six or even seven types of cabling standards?
Let's talk about super-six categories, although some vendors have always emphasized that their own super-six products can achieve higher performance in the existing six types of performance parameters and have other parameters not covered by the six types of specifications, such as actual data processing. ability. The actual situation is that the cabling industry group under the standards organization TIA and ISO has never formulated a super class six specification, and there is no such plan in the future. The super class six seen in the market is actually the ScTP version six class cabling. According to the tenth article of the TIA's six draft regulations, ScTP is one of the six types of media that are acceptable. In other words, what they call super six is ​​actually just six types.
There are seven types of performance categories immediately following the six types of standards, but there is not an extended relationship between them. Category 7 is a fully-shielded twisted-pair system that uses a completely different cable structure and connector design from the six categories, and its cost is far from the Category 6 unshielded twisted pair (UTP). Since the Category 7 cable has two layers of shielding and uses a complex, not necessarily RJ45-based connector, its cost is two to three times higher than that of the Category 6 UTP system. Although it has extremely high noise and signal sensitivity that can't be handled by Category 6 UTP, its cost is similar to that of fiber, and for those who are willing to pay a cost several times higher than Category 6, they naturally prefer higher performance and noise. With the lower interference of fiber optic systems, the appeal of the seven categories is doubtful.
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