Differences and advantages between optical modules 10G DAC and SFP +

The development of artificial intelligence and the Internet poses new challenges for expanding the capacity of data centers. Technology and cost often collide with sparks. To achieve high density and high capacity, control of costs must be controlled at the same time. Reasonable wiring is very important. We can choose high speed cable and optical termination box; combination of the connection cable when wired, how to choose these two products in the real scene? What are the differences between them and what are the advantages? Lets learn together! As a transmission medium, 10G SFP + DAC and 10G Optical Module can be chosen, what are the differences between them?

  • The 10G DAC connects two switches through copper cables, and the SFP + modules connect two switches connecting to the connection cables.
  • 10G DAC for short distance transmission, the furthest distance is 15M , often used in the engine room.
  • SFP + modules for long-distance transmission, the longest single fiber is 80KM, dual fiber is 100KM. Advantages 10G SFP + DAC: 10G DAC is a copper cable with SFP + connectors on both ends, which is more economical than the 10G optical module. The D10G DAC wiring is more flexible, the transmission distance of up to 15 meters, the difficulty of operation is less in the actual construction process;

The D10G DAC cabling saves the connection equipment and does not need to use a wire grid. The servers and the network equipment can be connected directly to the TOR switch, this saves the cost of the input indirectly.

Advantages of the 10G SFP + optical module:

If the vertical distance of the wiring does not exceed the enclosure, it can be connected with a 10G DAC. When a TOR switch is connected to a network switch, if the distance is greater than 15M, select the multimode fiber and the optical patch cord price to achieve, generally use the OM3 / OM4 LC patch cord and the 10G SFP + optical module. In other words, the 10G SFP + optical module is more widely used in long-distance transmission.

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