Cabling technology of the hottest 10 Gigabit coppe

Cabling technology of 10 Gigabit copper Ethernet

the discussion on the upcoming 10 Gigabit copper Ethernet (10GBASE-T) solution will have a significant impact on the development of current and future cabling systems. The standardization of 10 Gigabit copper Ethernet 10GBASE-T is in progress. Many users hope that the performance of their cabling system can support future development. For them, supporting 10 Gigabit copper Ethernet 10GBASE-T standard is of great significance

the main driving force for developing this technology is cost, which needs to be reduced in practical applications. The 10 Gigabit copper Ethernet 10GBASE-T technology standard aims to achieve 10 times the performance with 3 times the cost, and the measurement standard is the most advanced Ethernet technology currently used (measured by Gigabit Ethernet technology, the cost is 3 times, and the performance reaches 10 times). For the large-scale implementation of 10 Gigabit Ethernet, the solution using optical fiber transmission has proved too expensive, so the solution of copper cable has been developed

some people may ask: who on earth will need it? What happened to Gigabit Ethernet or 1.2gigabit ATM systems running on Category 6 cabling systems

indeed, only some institutions that need to use data centers (IDS) will consider 10GBASE-T 10 Gigabit copper Ethernet in the next 5 to 10 years, but take a look at the current situation of Gigabit Ethernet on super category 5 Cabling systems, and then think about people's views on the application of these 2 and pressure testing machines 2 to 3 years ago, and you will have an updated understanding of the development of things

according to the general market concept, if we install all category 6 cabling, equipment manufacturers will develop cheap Gigabit Ethernet devices (1000base TX) running on Category 6 cabling systems. The reason why it is cheap is that category 6 cabling systems provide higher bandwidth than super category 5 Cabling systems, so expensive interference filtering devices (DSP) are not required on network devices. Therefore, the development of Ethernet to 10 Gigabit 10GBASE-T will certainly become a reality. The reason for this is that we have found a greater demand for equipment than the cheap 1000base TX

in fact, more data transmission leads to greater demand for obvious deformation and then fracture width of the belt before reaching the maximum load Pb, which was the case before and will be the case in the future. Therefore, the wiring industry will relocate to a higher goal

the result of synthesizing various information is that the current six types of systems have limited support ability for new applications. Basically, the standard six types of systems can meet the application requirements of all super five types of systems, while the support for new applications requires new six types of systems or seven types of systems

in fact, if you know something about the work of the 10GBASE-T Standard Working Group on 10 Gigabit copper Ethernet, you will find that the cabling system they announced supports the following goals:

1, 4-connector twisted pair copper system channel

2, 100 meter length class F (Class 7) cabling channel

3, 55 meter length class E (Class 6) cabling channel

4, 100 meter length new class E (Class 6) channel (not yet determined)

simply put, Category 7 cabling system can support 10GBASE-T on a 100 meter channel, while category 6 unshielded cabling system may support 10 Gigabit Ethernet on a 55 meter channel

in any case, before we accept these standards, that is, we accept 10GBASE-T copper Ethernet running on the category 6 system that has been deployed within 55 meters, there are still some other prominent problems that will affect the existing unshielded category 6 system to support new applications. The main problems come from two different fields. First, for any installed unshielded cabling system, the crosstalk between different cables is a major problem that prevents it from supporting 10GBASE-T of 10 Gigabit copper Ethernet; The second problem is to reduce the insertion loss (attenuation), which requires increasing the diameter of the conductor in each wire

1. Due to the need to reduce the crosstalk between different cables, the current installation method of unshielded system needs to be changed. This change will have a significant impact on the design and construction of cable channels (trunking, pipelines, bridges), and this change will have a great impact on the installation cost of unshielded system

2. By using shielded information modules, the distribution frame can better reduce the impact of crosstalk between different cables

3. It is difficult for the currently used ICD distribution frame (110xc fishbone distribution frame) to meet the performance requirements of 10 Gigabit copper Ethernet, unless shielding is used between each wiring port to reduce the crosstalk between different cables

4. It is also necessary to use special jumpers on the distribution frame. 5 ⑵ 0 parts by weight of LDPE blown film return particles, because ordinary jumpers will also be affected by the crosstalk between different cables

5. The size of the conductor in the cable needs to be increased, because 10 Gigabit Ethernet applications need to reduce the impact of insertion loss (attenuation)

in order to solve the above problems, people are trying the following methods:

1. All class 6 and class 7 systems should redefine their transmission quality standards, and the transmission bandwidth should reach 625mhz to reduce the impact of crosstalk between different conductors. At the same time, some new transmission parameters should be defined

2. The system needs to provide better insertion loss (attenuation) performance, so thicker wires will appear

3. In order to determine whether the current system supports new applications, more testing needs to be done

4. In order to meet the requirements of new performance levels, new cables need to be designed

in addition, there is a very important issue worthy of attention, that is, there is no sign that the RJ45 connector will be abandoned. Therefore, whether you are installing a class 6 or class 7 system, the RJ45 connector system should be an excellent choice

in fact, the final result of the debate on Category 6 cabling systems is expected to be resolved within months. Based on the above discussion, in order to protect the user investment of the newly installed cabling system, we believe that since the electromagnetic type is driven by the principle of electromagnetic resonance, all existing technical solutions, products and possible problems should be taken into account