Driven by the scale expansion of data center, the requirement for higher bandwidth is increasing. With the advantages of fast transmission speed and great bandwidth, fiber cables definitely occupy a larger share in data center, especially for backbone applications. However, the costs of fiber-to-the-desk (FTTD) system, fiber cable application environment, and maintenance are much higher than copper. So copper cables are still widely used in many applications, including wireless access, horizontal cabling, PoE technology, LED-based power system, digital camera, and sensor networks.
Since copper patch cord allows data transmission as well as electrical power supply, it can be used for Power over Ethernet (PoE) applications such as horizontal network transmission for voice transmission and in-building networks, and device end. Besides, Network cable still keeps making progress. With the advent of 25G and 40G patch cable standards (25G/40Gbase-T), copper cable is able to support a bandwidth of up to 2GHz. What’s more, the newly released TIA-568.2-D standard has added 28AWG patch cable in the normative annex. This will facilitate the development of 28AWG slim patch cable in high-density data center applications. TIA-568.2-D standard also has approved MPTL (Modular Plug Terminated Link), which is used particularly for high-performance cabling infrastructures using patch cables like Cat6a for wireless access points, CCTV cameras, etc. The MPTL enables the cable to be plugged directly into a device. This will promote the growth of patch cables. Therefore, the copper cable will still be an indispensable part in data center.