Active Copper Cable—Economical Interconnection Solution
In today’s data center, direct attached cable (DAC) is widely used for interconnection. With 40G migration, DAC becomes more popular, because they can support the high data rate and complete the interconnection in short time effectively. Currently, there are three types of DACs: passive copper cable, active copper cable and active optical cable (AOC). However, different DAC have different performances and prices. Passive or active? Copper or optical? Which DAC is the one you need? In data center, the battle between performance, transmission distance and cost has never ended. This is also true to the selection of DAC for 40G data center interconnection. To find a cost-effective 40G DAC solution for data center interconnection with reliability and stability, this article will provide you the solution by several rounds of battle between the three types of DAC. Battle Over Transmission Distance The first round of battle is transmission distance which is alwa...