I've looked into this further, and I believe if you use MA-SFP-10GB-LR on the Meraki side it will be compatible with SFP-10G-LR-S on the small business side.   The "-S" optics have the same lasers as the non "-S" models.  The only real difference is the "-S" models don't support FCoE and are only designed to operate at "commercial" temperatures.   You can read more about the "-S" differences here: https://community.fs.com/blog/cisco-10g-s-class-vs-non-s-class-modules-how-to-choose.html  ... View more