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Why is copper still an integral part of the data center?

Jan 06, 2022
1. Application comparison. 
Although, driven by the demand for higher bandwidth in the data center, optical fiber accounts for a large share of its deployment in the data center with the advantages of higher transmission rate and larger bandwidth, especially in the backbone application network, in fact, copper cable will still be an indispensable part of the data center, and copper cable can not be replaced by optical fiber in special environment applications such as voice transmission and power supply. 
2. Unique advantages of copper cable. 
In the comprehensive horizontal cabling within 100 meters, optical fiber is inferior to copper cable in maintenance, cost, cabling and so on. 
The core in optical fiber is a special type of glass fiber, which is more fragile than copper in copper cable. In wiring and post-maintenance, optical fiber will be easily damaged and its cost will increase if you do not pay more attention to it. According to the current market situation, although the price of optical fiber has decreased, it is generally higher than the price of copper cable; therefore, compared with optical fiber, the wiring and maintenance of copper cable is more convenient and low cost. 
In the application of power supply, such as voice signal transmission and wireless access, POE power supply system, optical fiber can not replace copper cable. 
First, because copper cable, unlike optical fiber, transmits data through electrical pulses and can support voice signals, copper cable can be used for voice transmission, while optical fiber is not. 
Second, because the glass fiber used in optical fiber can not conduct electricity, and the copper in copper cable can conduct electricity, copper cable can supply power while making data connection, so it is widely used in wireless access, POE power supply system, LED-based power system and so on. 
In addition, modular plug termination links (MPTL) have been approved in the TIA-568.2-D standard as an option to connect devices, a move that will promote the growth of RJ45 copper cable applications, especially in surveillance systems using IP cameras. 
At the same time, the 28AWG specification network jumper is added in the appendix to this specification, and the smaller copper cable will contribute to the circulation of air and the use of space, so that it can be developed in high-density applications.

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