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Optical Transceivers in Data Center, What's the Parallel-optics and WDM-optics technology?
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High-speed optical transceivers play a big role in data center connectivity. In the data center, there are two transmission solutions, parallel and WDM. According to the typical transmission distance, optical module types are divided into SR (100m), DR (500m), FR (2km), LR (10 km), ER (40 km), ZR (80 km). What does that means?
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