I think you're looking for an MTP breakout cable, rather than a QSFP28 breakout.
The MTP breakout requires separate optics, whereas the active breakout can plug directly into a device's SFP+ ports. Something like... https://www.fs.com/products/24422.html And https://www.fs.com/products/41426.html You'll also need to tell your device to break out it's 40 g into the component 10g channels. Then they'll each get a distinct port number. (Usually just a number appended to the parent port) -Matt On Wed, Jan 8, 2020, 12:10 Randy Bush <ra...@psg.com> wrote: > i am not a fiber/sfp/... geek, so clue bat please > > on my left, i have a delta 9020SL running arcos, female 40g qsfp > > on my right, i have incoming 10g 1310nm single mode from the seattle > internet exchange. it is currently into a redstone 10g sfp > > NAME VALUE > --------------------------------- > SwPort 1 > Status PRESENT > Valid True > Vendor FiberStore > Model SFP-10GLR-31 > Serial-Number G1804021292 > Type SFP > Module-Type 10G_BASE_SX > Media-Type FIBER > Module-Capability F_10G > Length 255 > Length-Description > > which i am swapping out for the delta 9020 > > so i am look at something such as https://www.fs.com/products/30900.html > except i do not understand active/passive, AOC1M, etc > > thanks in advance > > randy >