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SR vs LR vs ER vs ZR: How to Choose the Right Optical Module?
SR (Short Reach) Typical distance: up to ~100m–300m Medium: multimode fiber (MMF) Use case: intra-rack or intra-row connections
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2022-04-23
📡 Optical Wavelengths in Fiber Transmission: A Structured Overview
In modern optical communication systems, wavelength selection is not just a technical detail — it directly determines transmission distance, network architecture, and application scenarios. At ELVIREX, we summarize commonly used optical wavelength bands and their typical use cases as follows:
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BiDi or Dual Fiber — Which One Do You Actually Need?
A question we get quite often: 👉 “Should we use BiDi to save fiber?” Short answer: 👉 Only if you really need to.
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2022-01-10
SR vs LR — Which One Should You Really Choose?
Choosing between SR and LR sounds simple. But in real projects, this is where a lot of unnecessary cost and hidden issues come from.