Hi SFP modules will generally have UPC connectors. You therefore need to use cables with UPC at one end and APC at the other end.
If you use a APC-APC cable you will have 3-6 dB of optical loss. If it is a short connection and you are out of correct cables, it will usually work. On longer connections you need the extra power budget. As to where to buy, I will suggest fiberstore.com. Regards, Baldur On 23 February 2016 at 14:12, Lorell Hathcock <[email protected]> wrote: > NANOGians: > > APC wins! > > My real question is surrounding the connection on the SFPs themselves. > > In general terms are the LC connectors on SFPs considered UPC or APC? > > If the answer is UPC and if I am inheriting and/or building a network of > single mode fiber with APC SC connectors, then is the best practice to use > LC UPC to SC APC fiber jumpers? > > If so, can anyone point me to a source for said jumpers that is (1) quick > and (2) good? > > Any thoughts on the same idea of mismatched fiber jumpers connector types > to use on OLMs and OLSs? OTDRs? The concern here is to use the best > possible fiber connector types (e.g. APC or UPC) when connecting lasers to > my OSP fiber which uses APC with consideration to the optimal connector > type for the laser transceiver. > > My thoughts are to use fiber jumpers with UPC connectors on the laser side > with APC on and throughout the OSP, but if it should be purely APC > everywhere, then that is what I need to know. > > Thanks! > > Lorell Hathcock

