Ok cheers guys! Think that has answered my question! I'll stick to the cwdm optics! Would rather pay a little more and not have issues!
Regards Joe Waite > On 11 Sep 2014, at 12:10, "Neil J. McRae" <[email protected]> wrote: > > Also beware of the fringes - something that works on your span today might > not after a fibre break or other incident. > > Cheers > Neil > > Sent from my iPhone > > On 11 Sep 2014, at 10:08, "Brandon Butterworth" <[email protected]> wrote: > >>> Well I'd certainly try this first with a stock inventory part before >>> spending unnecessary money on the expensive vendor optic... >> >> I'd find the mux spec before puting something live that may only >> be on the edge of staying live >> >>> Vendors do give different tolerances for what the actual wavelength >>> transmitted will be and this will fluctuate slightly due to the >>> manufacturing process >> >> Yes, that's the wide range I quoted, devices can be anywhere within that >> (I've measured them), there's no reason for non cwdm be close to 1310 >> >>> optic sold as cwdm will have been checked against a tighter limit but I'd >>> be shocked if you're buying LR that isn't almost exactly 1310. >> >> It may be some manufacturers use the same lasers for both parts but >> usually the cwdm have a laser designed for stability, which costs more >> (DFB vs Fabry-Perot) >> >> brandon >
