Application Case Background
The 10GBASE-T 10 Gigabit copper cable application case described in this article is a government office building, which is composed of seven different government departments. The network cabling system requires 10 Gigabit layout, independent management, and mutual connection when necessary. After analyzing and comparing optical fibers and Cat6A copper cables with a large amount of data, consider comprehensive factors: from the data center to each information point, Cat6A copper cables are used to support the 10 Gigabit network system.
Fiber Cabling Solution vs Copper Cabling Solution
From the perspective of the transmission distance of the optical fiber system, optical fiber transmission is an ideal solution to realize the backbone of the 10G network in the entire office building. However, in the horizontal work area, the transmission distance from the data center to each work point is short, and the transmission distance is within 100 m. The transmission distance of Cat6A copper cable is 100 m, which can meet the engineering requirements.
In terms of price, the network solution for optical fiber transmission of 10 Gigabit Ethernet is to use 10GBASE-SR optical fiber modules, but the cost per port of copper transmission 10GBASE-T network modules is only half of that of 10GBASE-SR. Therefore, the copper cable transmission 10G network has a great price advantage over the optical fiber transmission.
10GBASE-T and Cat6A Used in the Application Case
By comparing the transmission distance and the port price, it can be concluded that Cat6A copper cable is the ideal solution for 10 Gigabit Ethernet within the transmission distance of 100m, so Cat6A is used in the horizontal wiring from the work area to the floor distribution frame, data center wiring, etc. copper cable.
The products of the 10 Gigabit transmission system involved in data transmission include from the work area: jumper, module, horizontal cable, module, jumper, switching equipment, jumper, module, trunk copper cable, module, and jumper, so that each Some of them must meet the requirements of 10 Gigabit transmission, and none of them are indispensable. Secondly, the 10G copper cabling must also meet the following characteristics:
a. It supports a bandwidth of 500 MHz to ensure that the channel performance meets or exceeds the wiring standard. Compared with the 250 MHz of Cat6 copper cable, the transmission capacity is increased by 10 times.
b. It supports applications with 4 connections, and can fully meet the connection requirements of 10GBASE-T network equipment within a transmission distance of 100 m, can support 10G connections, and obtain more bandwidth capacity.
c. The main driving force for the emergence of 10 Gigabit Ethernet is to reduce the networking cost of 10 Gigabit Ethernet as the most basic standard. For the measurement of Gigabit Ethernet technology, we use 3 times the cost to achieve 10 times its performance. The requirement of 10 Gigabit network is still to use 3 times the cost to achieve 10 times the performance to measure 10GBASE-T as the technical standard. For the implementation of 10 Gigabit Ethernet in the horizontal work area, Cat6A copper cabling can provide more economical cost than optical fiber for 10GBASE-T channels, and RJ45 is used, which has low cost, convenient construction and installation, and good compatibility; using optical fiber The transmission scheme has proven too expensive. 10 Gigabit copper cables are used for server performance and in desktop applications, and their connections ensure user productivity.
The government’s ministries and commissions often work with provinces, municipalities, and subordinate departments to conduct activities including video conferences, streaming media broadcasts, and Internet-based audio and video telephony. Therefore, the demand for bandwidth is also growing rapidly. Therefore, 10 Gigabit Ethernet meets their needs and is not affected while waiting for file transfers with complex files, high-resolution images and video presentations. And the faster connection will greatly improve the quality of real-time audio and video in IP telephony, web conferencing and distance learning, so that the communication between ministries and commissions, provinces, cities and subordinate departments will be smooth. The advantage of Cat6A copper cable used in the data processing center wiring of various ministries and commissions also lies in the support for the Ethernet standard and general RJ45 twisted pair, and then has the compatibility with IT equipment such as servers, storage, and networks. It is also convenient. Good compatibility makes 10G copper cables easier to be accepted by owners than fiber optic cabling;
d. Cat6A copper cable has good alien crosstalk suppression performance and has passed the alien crosstalk AXT test. Due to the increase in transmission rate, higher performance is required for the performance of copper cables and connectors. Due to the need for greater bandwidth, the signal level will become lower, alien crosstalk is not serious in Gigabit Ethernet, but it becomes an important problem in 10 Gigabit Ethernet. Therefore, the performance of the wiring system is improved, so that the wiring system itself has the ability to suppress noise to weaken alien crosstalk and copper-to-copper crosstalk. The most important feature that distinguishes Cat6A from Cat6 is alien crosstalk.