The first thing is to know the brand of the fiber optic switch, then we know his algorithm and his encryption mode according to each manufacturer, then according to different manufacturers, to develop his compatibility mode. Second, we need to know his transmission mode is single-mode or multi-mode, we need to know his rate is 10g, 40g or 100g, and then we also need to know his wavelength is 1310, 150 and so on. We must know the above parameters to match the corresponding optical module.VANDESAIL - Accelerating the world with technology.