Enables users to enjoy high performance and low cost, and promote a new generation of cabling types.The early 90s, the pace of development unprecedented in telecommunications cabling, from a single UTP specifications in TIA-568 in the first edition, to standardize on a number of 3,4,5-class appearance, in less than a year.It was a long wait for 5 years, six types of cabling standards finally just issued in June of this year.8,9 months of this year is about to announce the ISO E-class six standard / F grade seven types of cabling standards, the market will once again into a strong injection, which marks the structured cabling is moving six, seven categoriesand fiber into the future.Especially noteworthy is that in the formulation of standards in seven categories, "non-RJ-type" appearance of the seven categories of standards, breaking the traditional "RJ-type" interface design, layout history as a meaningful innovation.
Since 1997, the International Organization for Standardization to define seven types / F-class performance requirements and select a standard interface to a number of meetings held.
Begun to develop standards for the seven categories, a total of eight connector has been proposed, including two as "RJ" in the form of the six "non-RJ" form.In January 1999, ISO Technical Committee decided to select a "RJ" and a "non-RJ" type of interface to do further research.In August 2001 the ISO / IEC JTC 1/SC 25/WG3 Working Group meeting, ISO standards organization is divided into seven categories reaffirmed "RJ-type" interface and "non-RJ-type" interface, two kinds of models.One, "RJ-type" interface, the feasibility study is being IEC SC488 review and research organizations.July 30, 2002, Siemon TERA developed seven types of connections was officially selected as "non-RJ" type of seven types of standard industrial interface standard mode.TERA connector transmission bandwidth up to 1.2GHz, is currently under development in more than seven types of standard 600MHz bandwidth, which can support voice, high-speed networks, CATV and other video applications.
"Non-RJ-type" seven types of innovation
"Non-RJ-type" seven categories of cabling technology is completely broken the traditional 8-pin modular RJ-type interface design, from the RJ-type interface was spun off limits, not only the seven types of transmission bandwidth to 1.2GHz, but also to create a new1,2,4 on modular forms.This is a new line to meet the pair and the isolation, compact, highly reliable, easy to install interface form.
For example, TERA connector provides excellent bandwidth, more than the current standard being developed seven types of standard transmission bandwidth of 600MHz.This makes some of the needs of high bandwidth applications such as broadband video applications up to 862MHz, can run in seven categories / F-class routing system.As TERA compact design and a variety of 1,2,4-on modular connectors, a separate class of seven channels (4 pairs of wire) can simultaneously support voice, data and broadband video and other mixed media applications, which makes the sameoutlet can manage multiple applications, reducing the previously required fiber, coaxial, twisted pair cable demand, thereby reducing the LAN (high-speed LAN) equipment costs.
Competitive Advantage
1. At least the transmission rate of 600MHz
Being developed in the "non-RJ-type" seven categories of criteria, not only requires seven types of components and channel link will be provided over standard twisted-pair cabling system unmatched transfer rates (optical transmission rate of approximation, the current standards require the transmission of the seven categoriesbandwidth of up to 600MHz), and require the use of "fully shielded" cable, that is, each pair is individually shielded and shielded twisted-pair cables are generally in order to ensure the best shielding.The seven types of system noise immunity and low power of the external radiation allows high-speed local area network (LAN) do not need more expensive electronic equipment to perform complex coding and signal processing.
And six, over five comparison, "non-RJ-type" seven categories of performance requirements in the transmission higher.Six / E level is not a separate line using the form on the screen to provide the highest transmission performance of the technology, for the vast majority of commercial applications, six / E-class 250MHz bandwidth over the life of the entire cabling system is for usersenough, so six / E level is the best choice for commercial building wiring.The seven categories / F-class target is balanced than any cable transmission parameters for each performance is better.For example, the channel requires at least 600MHz when PSACR (cumulative power attenuation crosstalk ratio) is greater than zero.
"Fully shielded" the seven categories of cable outer diameter greater than six and not six cable cable flexibility is good.This requires the installation of routing and termination in the design space to be especially careful to leave a lot of space and a larger bending radius.Also the connection between the two also have different hardware.Is developing standards in seven categories connector to 600MHz, the provision of at least 60db crosstalk between the line of separation, this claim is more than five in the 100MHz ultra-demanding time of 32db, when compared with six in the demanding 250MHz20db, therefore, seven types with a strong anti-interference ability.
2. Save half the cost of
People may have this question: Since the "non-RJ-type" seven types of fiber optic cabling transmission performance can be achieved, why not use the fiber in place of "non-RJ-type" seven types of wiring system?
One is cost.With a fiber optic local area network (LAN) compared to the full cost, "non-RJ-type" seven categories of cabling has obvious advantages.On 24 SYSTEM7 (SYSTEM7 with fully-shielded TERA connectors, with each line of up to 1GHz on standard twisted-pair transmission performance cabling system solution) and multi-mode Fibre Channel 62.5/125μm installation of the system to make a cost comparison study found that, both close to the installation cost, but a copper fiber optic equipment, LAN equipment is about six times.When considering all of the local area network installation costs, SYSTEM7 not only provide high-bandwidth, and its cost is only half of multimode fiber.
The second is "non-RJ-type" seven categories / F level not available with fiber optic capabilities.As the "non-RJ-type" seven categories / F level are separate for each of the shield, greatly reducing the crosstalk between the lines of, this allows SYSTEM7 within the same cable can support voice, data, video, multimedia three applications.Between the work area or telecommunications, TERA 1 pair, 2 pairs, 4 pairs of the form of modular connectors to achieve the same outlet port in a variety of applications within the port directly connected.
Who can use the "non-RJ-type" seven types of cabling?
As the "non-RJ-type" wiring system uses seven categories of "fully shielded" cable, it can fill those shielded twisted-pair system dominated areas, such as some European and Asian markets.Fully shielded solutions, electromagnetic interference is mainly used in severe environments, such as some radio stations, radio and so on.In addition, used for security purposes that require extremely low electromagnetic radiation environment."Non-RJ-type" seven categories / F-class routing system that can benefit the performance of its cutting-edge technology in order to make some business sectors in the market to get a leading edge, including financial cards, insurance, and those who demand a great amount of information transmissionenterprises.Those who always stand on the cutting edge of technology in education and some government research institutes may also use the seven categories of technology.Another Broadband Intelligent Community and commercial buildings are also potential markets.Class 7 the capacity of a cable can serve all of the copper cabling system requirements, including the place of coaxial, from sheathed sharing restrictions, while enjoying the high performance and low cost.
Tips
Standard is a set of seven categories of the 100 ohm twisted pair supports up to 600MHz bandwidth transmission cabling standards.September 1997, ISO / IEC cabling standards identified seven categories of research and development.And four, five, compared to over five and six, seven categories have higher bandwidth (at least 600MHz).Starting from the seven types of standards, wiring and appeared in history "RJ-type" and "non-RJ" type interface division.The "RJ-type" interface, currently amount to less than 600MHz of bandwidth, no final seven types of standard exposition of the international seminar on the seven categories are actively draft standard.But in July 1999, ISO / IEC received a non-RJ category Simon TERA interface standard, and in July 2002 to finalize the seven categories of Simon's non-RJ TERA interface.
RJ is the acronym for Registered Jack.In the FCC (Federal Communications Commission standards and regulations) is defined in, RJ is to describe the public telecom network interfaces, commonly used RJ-11 and RJ-45, the computer network is a standard RJ-45 modular 8-bit interfacecommonly known.In the past four, five, super five, including the newly released six cabling, the RJ-type interfaces are used.