In some enterprise applications, SX is "good enough" for the distances at hand, and SX optics are cheap...
On Thu, Jan 26, 2012 at 3:33 PM, Pierre-Yves Maunier <na...@maunier.org>wrote: > 2012/1/26 George Bonser <gbon...@seven.com> > > > > > SX can actually be a little more versatile. LX works only over single > > mode fiber. SX is designed to work over either. As long as you have SX > at > > both ends, you can connect them with either single or multimode fiber as > > long as the fiber type is consistent over the entire run. > > > > > > > It's the contrary. > SX only works on multimode fibre, not on singlemode. > > LX can work on both. > > > It can happends that SX works on singlemode but it can fail anytime. > > LX over multimode fibre is documented on Cisco SFP/GBICs datasheets. > > > http://www.cisco.com/en/US/products/hw/modules/ps4999/products_tech_note09186a00807a30d6.shtml > > Cisco 1000BASE-LX/LH SFPGLC-LH-SM1SFP-GE-L2Operates on standard single-mode > fiber-optic link spans of up to 10 km and up to 550 m on any multimode > fibers. > > > -- > Pierre-Yves Maunier >
