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In today's highly competitive communications industry, everyone is expected to gain competitive advantage, whether in terms of performance, efficiency or cost. Although many data center changes focus on the configuration of network adapters and switches, there is an extremely basic but equally effective way to improve deployed data centers, which is to rethink interconnect cables, including high-speed cable (Direct Attach Cable) referred to as DAC and active optical cable (Active Optical Cables) referred to as AOC.

DAC or AOC, who will be the winner in data communications?

The advent of AOC optical cable, which travels longer distances and reduces electromagnetic interference, has brought the misconception that this more innovative technology should be adopted in all aspects of the network. In data centers, however, using DAC copper is often the most sensible, as DAC provides significant advantages in terms of capital expenditure, operating expenditure, performance, and reliability. Here are some of the advantages of DAC copper over fiber optic cable:

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① distance

DAC can scale to several meters, depending on the speed of the network, which is usually more than sufficient for interconnections within the data center. Whether connecting between servers in a single rack or between switches in a cluster, DAC provides this feature: reliable and affordable transmission with the highest available bandwidth.

② cost

When it comes to capital costs, DAC offers the benefits of significant savings. Generally speaking, the cost of passive copper cable is two to five times cheaper than fiber optic cable of the same length. In addition, because the DAC does not consume power, and because its thermal design has a low demand for cooling, it can significantly save operating expenses in the data center. Hundreds of kilowatts of electricity can be saved if you use DAC copper cable instead of AOC fiber optic cable.

③ reliability and speed

One of the biggest advantages of DAC is reliability, which is measured by mean time between failure (MTBF). The MTBF of passive copper cable is about 500 million hours-usually an order of magnitude higher than the industry standard for fiber optic cable. DAC provides a big benefit for enterprise data centers where reliable data transmission is critical: avoiding downtime.

DAC or AOC, who will be the winner in data communications?

DAC copper cable can support 100 Gbps at distances up to 8 meters, which is ideal for data center deployment environments, while providing lower latency, better reliability, and lower power consumption at a much lower cost than fiber optic cables.

Yi Tianguang Communications can use DAC copper cable and AOC fiber optic cable with high price ratio. For more details, please follow the official website of Yi Tianguang Communication.

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