With ever-increasing transmission rates, the demands placed on cable systems have become more demanding. Therefore, when selecting the transmission medium of the three main cabling system systems of integrated cabling, it is necessary to seek a balance between factors such as bandwidth, flexibility, scalability and cost. During this period, we must first understand what are the main three major wiring systems of system wiring, and what are the tips and tricks for integrated wiring!
city in general wiring
1. Copper cable system
Although copper cable systems are limited in transmission distance and the number of channel connectors compared to fiber optic systems, copper cable systems are the most familiar to all designers, installers and users. It can achieve high-speed applications in a low-cost way, from 10/100/1000Base-T to 10GBase-T, copper cable systems can be well supported. In addition, unshielded systems can support PoE applications to power remote devices while transmitting data signals.
2. Shielded cable system
It goes without saying that in the three major wiring systems of integrated wiring, the shielding system has a good ability to resist electromagnetic interference and prevent information leakage. For the Category 6A shielding system supporting 10 Gigabit transmission, the alien crosstalk test problem can be ignored, which will undoubtedly save a lot of test time.
3. Optical fiber system
Optical fiber is the best medium for information transmission. It not only has the incomparable advantages of copper cable system in terms of long-distance and high-speed transmission, but also, unlike copper cable manufacturing, which is limited by the raw material—the rare resource of copper metal, the manufacture of optical fiber is not easy. Limited by raw material resources. In addition, compared with copper cables, the size of optical cables is smaller, and the network is not limited by the number of connectors in the link, and there is no need to consider the problems caused by electromagnetic interference. With the trend of "light in and copper out", optical fiber systems will play an increasingly important role in data centers.
fiber optic transmission
Since the price of optical fiber port equipment is still expensive, which is several times that of copper cable equipment for the same application, this has become the main reason why the optical fiber system cannot completely replace the copper cable system. Secondly, optical fiber installation requires professional practitioners to use special tools to carry out, and the construction cost and requirements are relatively high. In addition, in the face of the emerging and high-profile PoE power over Ethernet technology, fiber optic systems cannot be supported.
For fiber optic systems in data centers, the general consensus in the industry is that OM3 laser-optimized fiber optic systems are recommended. This system can use VCSEL (Vertical Surface Laser Emitter) light source to support 10Gb/s transmission at 850nm wavelength, and the distance can reach 300 meters. In terms of upgrades, some manufacturers are moving beyond the 10Gb/s standard to transmit 40Gb/s using Coarse Wavelength Division Multiplexing. This is the main three wiring systems of integrated wiring.
