Questions tagged [dac]

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1answer
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What is the difference between LR1 and LR4 optics?

Does anyone know what's the difference between LR1 and LR4 optics?
2
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1answer
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Is configuring FEC mandatory in designing 100G networks? What's the difference FEC makes with DACs vs optics?

I have read a lot of information online but I am still not sure when do we exactly configure FEC and what are the advantages/disadvantages of configuring it. Does DAC transceivers always need FEC to ...