Why can’t optical fiber replace network cables?
In the wiring industry, the contest between fiber and copper cables has lasted for more than ten years. Nowadays, with the continuous emergence of new businesses such as cloud computing and 5G, the size of the data center has continued to expand, and its structure and wiring are becoming more and more complicated. The demand is also becoming more and more vigorous. The proportion of fiber in large data centers is as high as 70%higher and far higher than copper cables. So does this mean that copper cables are completely replaced by optical fibers? actually not.
First, why is copper cable still an indispensable part of the data center?
1. Application comparison
Although, under the role of data centers on higher bandwidth demand, optical fiber has the advantages of higher transmission rates and larger bandwidth to make it deploy in the data center to occupy a large share, especially the backbone application network; Copper cables will still be an indispensable part of the data center, and in the application of special environments such as voice transmission and power supply, copper cables are cables that can not be replaced by fibers.
2. The unique advantage of copper cable
In a comprehensive level wiring within one hundred meters, fiber fiber is not as good as copper cables in terms of maintenance, cost, wiring and other aspects. The fiber core in the fiber is a special type of glass fiber. It is more vulnerable than the copper in the copper cable. In wiring and later maintenance, if you do n’t pay much attention to the fiber, it will easily damage the cost; and it will increase the cost; and it will increase the cost; and it will increase the cost; and it will increase the cost. And As far as the current market situation, although the price of optical fibers has been reduced, it is generally higher than the price of copper cables; therefore, compared to fiber optic fibers, the wiring and maintenance of copper cables are more convenient and low in cost. In the application of electrical supply such as transmission and wireless access, and POE power supply system of voice signals, fiber optic fiber cannot replace copper cables.
Because copper cables are different from optical fiber, they can support voice signals through electrical pulses. Therefore, copper cables can be applied to voice transmission, and fiber is not good.
Because the glass fiber used by the fiber cannot conduct conductivity, and the copper in the copper cable can conduct electrical conductivity, the copper cable can supply power while performing data connection, which is widely used in wireless access, POE power supply system, based on the POE power supply system, based on the Based LED’s power system, etc.
In the TIA-568.2-D standard, the modular plug-end connection (MPTL) has been approved as an option for the connection device. This move will promote the growth of the RJ45 copper cable, especially in the monitoring system of using an IP camera. At the same time, the attachment of this specification also adds a 28AWG specification network jump, and the smaller specifications of copper cables will help the circulation of air and the use of space, so that it can develop in high -density applications.
What are the types and applications of copper cables?
What are the common copper cable types?
Nowadays, there are many types of copper cables on the market, such as super five, six, super six categories, seven, and eight categories, and different types of copper cables have different wiring applications, as follows:
1. Super five types of network cables
Super five types of network jumpers (that is, CAT5E network cable) are developed by TIA/EIA in 2001. Its decay and less disturbances, the maximum bandwidth is 100MHz, the maximum transmission rate is 1000MB/s. In terms of five types of network cables, its performance has been greatly improved, with higher attenuation string ratio (ACR) and division noise ratio (SNR), as well as smaller lack. Super five types of network jumps are suitable for 100M and Gigabit Ethernet.
Common in family networks or indoor wiring,
Under normal circumstances, the farthest transmission distance of the six types of network jump does not exceed 100 meters. The most ideal is within 90 meters.
2. Six category network cables
The bandwidth of the six types of network jump (ie CAT6 network cable) is 250MHz, and the maximum transmission rate is 10GB/s. Compared to the super five types of network jumping lines, the internal structure of the six types of network jump lines is better. Among them, the cross skeleton is used inside. The performance of wave losses has been improved, and the transmission performance is much higher than that of the super five types of network jumper, which is more suitable for applications with transmission rates greater than 1Gbps. In addition, the farthest transmission distance of the six types of network jump is usually not more than 100 meters.
3. Super six -type network cable
Super six types of network jump lines (that is, CAT6A network cable) are the improved version of the six types of network jumper. Its bandwidth is twice that of the six types of network jumps, the transmission frequency can reach 500MHz, and the maximum transmission rate is 10GB/s. Due to the high -quality structure of the ultra -six types of network jumps, it helps to eliminate external bandoscope (AXT), so it can support a distance of up to 120 meters, but the actual application is best within 100 meters. In addition, compared to the six types of network jumps, the conductor materials of the ultra -six types of network jumping lines are more suitable for the industrial environment.
Maybe many weak friends have some doubts about the difference between 6 types of network cables and ultra -6 types of network cables. They can be compared with the following figure to see the difference.
4. Category seven network cables
Seven types of network jumpers (that is, CAT7 network cable) transmission frequency is as high as 600 MHz, and 10Gbps transmission rate is supported within 100 meters in the transmission distance.
Suitable for adapting to Wanzo Ethernet
Essence Compared with the previous generation of network jumping lines, the seven types of network jumps have a strong shielding, which can effectively reduce attenuation, and are suitable for connecting equipment such as switches and wiring frames for high -density data centers. It is worth mentioning that the transmission rate of the seven types of network jump can be as high as 40Gbps at a transmission distance of 50 meters, and even the speed of 15 meters can reach 100Gbps at a rate of 15 meters. At present, because the seven types of network jumps are not flexible and difficult to manage, it has not been popularized for the time being.
5, eight category network cables
The eight types of network jumper (that is, the CAT8 network cable) are the next generation of double-twisted copper cable standards specified by ANSI / TIA-568-C.2-1, which can support bandwidth up to 2000MHz.
And the transmission rate is as high as 40GB/s, but its maximum transmission distance is only 30m
Therefore, it is generally used for the connection of the server, switch, wiring frame and other devices of short -range data centers. Because the eight-type network cables are designed for 25GBase-T and 40GBase-T applications, it is especially suitable for the interconnection of data center switches to the server.
Fiber and copper lines are two common data center transmission mediums. Both have anti -interference and good confidentiality. So what is the difference between fiber and copper threads? The difference between the two is mainly reflected in the following four aspects:
1. Transmission distance
Generally speaking, the transmission distance of the copper wire does not exceed 100m, and the maximum transmission distance of the fiber can reach 100km (single -mode optical fiber), which far exceeds the transmission distance of the copper wire.
2. Transmission rate
At present, the maximum transmission rate of copper wires can reach 40Gbps (such as eight -type network cables, DAC passive copper cables), and the maximum transmission rate of optical fiber can reach 100Gbps (such as OM4 fiber jump line), far exceeding the copper wire.
3. Maintenance management
The operation of the crystal head of the copper wire and the port connection of the device are very simple, and the cutting and melting of the fiber of the fiber, the equipment connection and other operations, the requirements are higher and the operation is more complicated.
4. Price cost
In the case of the same length of the fiber and copper line, the price of fiber generally is generally 5-6 times the price of copper lines, and the price of optical fiber insertion equipment (such as fiber coupling device) is much higher than the copper line, so at the price at the price In terms of cost, the cost of optical fiber is much higher than the price cost of copper line. From the comparison above, the optical fiber and copper wire have their own advantages. Copper cables still occupy an important position in applications such as voice transmission, indoor network, horizontal wiring, and POE system. Still continuously studying and developing in order to meet the needs of more equipment connection in the future. Therefore, you don’t need to worry about it
In order to answer your doubts, the above is what we have organized about Factory direct sale rj45 ethernet cable cat8 1m 2m 3m 5m SFTP Slim cat 8 ethernet cable, hope it can help you.