Hello, welcome to Jiexi Kunlian Cable Co.,Ltd, in this article, we will discuss the wiring difference between Cat6 and Cat7.
Wiring installation difference between Cat6 and Cat7
With the development of the information age, people’s needs are also increasing. In the integrated wiring industry, there is a certain gap between Category 6 network cables, Category 7 network cables and optical fibers. Judging from the current consumption market level of the domestic cabling industry, for a long period of time, Category 7 network cables still meet people’s demand for bandwidth. However, as data center technology and optical fiber supporting equipment are updated and upgraded, the competition between Category 6 and Category 7 network cables and optical fibers will continue to escalate. Below we analyze the six categories and seven categories.
Category 6 cable:
The transmission frequency of Category 6 cable is 1MHz～250MHz. The comprehensive attenuation crosstalk ratio (PS-ACR) of Category 6 wiring system should have a larger margin at 200MHz, which provides twice the bandwidth of Category 5 . The transmission performance of Category 6 cabling is much higher than that of the Super Category 5 standard, and is most suitable for applications with a transmission rate higher than 1Gbps. An important difference between Category 6 and Category 5 is that it improves the performance in terms of crosstalk and return loss. For a new generation of full-duplex high-speed network applications, excellent return loss performance is extremely important. The basic link model is cancelled in the six types of standards. The wiring standard adopts a star topology. The required wiring distance is: the length of the permanent link cannot exceed 90m, and the channel length cannot exceed 100m. In June 2002, the ANSI/TIA/EIA568-B copper twisted pair category 6 standard was officially released.
Cat7 wiring installation:
the latest twisted pair in the ISO/IEC 11801 Category 7/F level standard, which is mainly used to adapt to the application and development of 10 Gigabit Ethernet technology. But it is no longer an unshielded twisted pair, but a shielded twisted pair. 4 pairs of core diameter 23AWG single strands of high-quality oxygen-free copper are used as conductors (the copper conductor is insulated with FMPE material), the wire pair and the cable are integrated with aluminum foil and the high-efficiency double shielding structure, the cross is isolated, and the transmission frequency is also extended to 600MHz. Category 7 network cable is an 8-core shielded cable, each pair has a shielding layer (usually a metal foil shielded Foil Shield), and then there is a shielding layer outside the 8 cores (usually a metal braided wire mesh shielded Braided Shield), The interface is the same as the current RJ-45.
Different utilization environment
Category 6 wiring: most suitable for applications with a transmission rate higher than 1Gbps.
Category 7 wiring: It can provide at least 500MHZ comprehensive attenuation to crosstalk ratio and 600MHZ overall bandwidth.
Different performance
Category 6 wiring: It can be used for voice, integrated service data network (ISDN), ATM155Mbps and 622Mbps, 100MbpsTPDDI, fast Ethernet and Gigabit Ethernet; it has longer transmission distance, less transmission loss, wear resistance, and pressure resistance than Category 5 And other characteristics.
Category 7 : The latest twisted pair in the ISO/IEC 11801 Category 7/F level standard. It is mainly used to adapt to the application and development of 10 Gigabit Ethernet technology. But it is no longer an unshielded twisted pair, but a shielded twisted pair, so it can provide at least 500MHZ comprehensive attenuation to crosstalk ratio and an overall bandwidth of 600MHZ, it is a Category 6 wire and a Super Category 6 wire The transmission rate can reach 10Gbps.
The choice of cable type should be comprehensively considered in terms of cable use, required transmission capacity, transmission bandwidth, and price. There are three types of cables: unshielded twisted pair, shielded twisted pair, and optical cable.
- Category 6 unshielded twisted pair UTP is currently the most widely used wiring system in China. It is suitable for network applications with a transmission bandwidth below 250MHz and no special performance requirements. Its advantages are good overall performance, low price, and comparison of construction and maintenance. convenient. Category 6 wiring system has reached the performance limit of unshielded twisted pair.
- The aluminum foil shielded twisted pair FTP has a large bandwidth, strong anti-interference performance, and has the characteristics of low smoke and halogen free. In contrast, shielded cables are higher in price and installation cost than unshielded cables, and cable bending performance is slightly worse. Category 6 lines and previous shielding systems mostly use this form.
- Independently shielded twisted pair STP, each pair of wires has an aluminum foil shielding layer, and the four pairs of wires together also have a common metal braided shielding layer. This is the standard structure of the seven types of wires. It is suitable for high-speed network applications, provides highly confidential transmission, supports future new applications, and helps to unify the wiring platform of current network applications, so that all kinds of information from e-mail to multimedia video can be in the same high-speed system In the transmission
The additional shielding layer makes the Category 7 wiring have a larger wire diameter. These characteristics require special care when designing the installation routing and termination space, leaving a lot of space and a larger bending radius. At present, our company cable The SUOER series of integrated wiring products have been launched in the 7 types of wiring systems, and all performances have passed the inspection and reached the standard, in line with international standards.