fx versus sx

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	Question by dou driscoll posted 30 Jan 2002
	fx versus sx
I've got mm 62.5 fiber between 2 telecom rooms and need media converters to tie into my existing 10/100 switch. I the option of either tx to fx or tx to sx, which should I use?
	Answer by Dmitri Abaimov posted 30 Jan 2002
Dear Dou, In your case FX refers to 100Mbit/s over two multimode fiber 100BASE-FX Ethernet module. SX refers to 1000Mbit/s (1Gbit/s) two multimode (62.5 or 50 mkm) fiber, short wavelength (850 nm) 1000BASE-SX module. Depending on the distance both may work, but the difference is obvious: ~10 times in speed and I believe ~4 times in cost. The decision should be made based on economics and your network traffic analysis. Sincerely, Dmitri Abaimov, RCDD
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