We are looking to install OM3 fiber to get a through put of 10 gig throughout our facility. I am looking at a chart and it states that the OM3 (50/125) which I am guessing is multimode fiber can produce 10 gig @ 300 meters (SR) and 1 Gig @ 550 meters (SX) what does the SX and SR mean and I am assuming that the OM3 is a multimode fiber.
Here's some information about Fiber Type vs. Speed and Distance: Fiber Type vs. Speed and Distance 


Use OM4 please, seriously I've found it so much more stable at those speeds than OM3 and the price difference isn't so much. 


SR refers to 10GBASESR, and SX to 1000BASESX. With an OM3 fiber, you can do ~300 meters at 10Gbit/s or ~550 meters at 1Gbit/s. 

