I am successfully using this 10gbe SFP+/LC singlemode 1310nm transceiver from fs.com. FS SFP-10GLR-31 I am also using this QSFP+/MTP transceiver (for Intel XL-710 in 4x10gbe mode) FS QSFP-PLR4-40G
On Mon, Jul 23, 2018 at 1:10 PM Ashish Chaudhari via USRP-users < usrp-users@lists.ettus.com> wrote: > Hi Zhongyuan, > > >> Does 10Gbps SFP+ transceiver backward compatible with 1Gbps socket? > > No it's not. Depending on what N310 FPGA image you build/use, the port > speeds are locked down. The HG image is 1G on SFP0 and 10G on SFP1 > whereas the XG image has 10G on both SFP ports. The transceiver might > support both speeds but the USRP won't. > > >> Could you recommend any SFP transceivers that work on your case? both > >> 1Gbps and 10Gbps. > > What speed do you need for your application? What is the speed of the > switch that you are working with? The solutions for 1Gbps and 10Gbps > are vastly different. Generally speaking fiber-optics that support > 10GBASE-SR, -LR and -ER should work with the N310 when the SFP port is > in 10G mode and optics that support 1000BASE-LX, -SX and -CX should > work in 1G mode. For Ethernet, I should mention that certain switch > and NIC vendors explicitly disallow certain non-approved optical > modules, so on the switch side I would double check with the vendor > that the transceiver works with your switch. On the USRP side, we > accept all optics. I haven't used the specific Finisar module > (FTLX1475D3BCV) but in general we have seen good results with Finisar, > Amphenol FCI and Elpeus transceivers. We do most of our testing with > full cable assemblies, although those might be a bit harder to find > for the lengths that you are looking for. > > As a data point here are the ones that are known to work: > > https://www.mouser.com/ProductDetail/Finisar/FCBG110SD1C03?qs=sGAEpiMZZMsi6nco80NB4Pt5EfrefmupuvEijLXVquZ4ABfDcakyUQ%3d%3d > > https://www.serversupply.com/NETWORKING/TRANSCEIVER/10%20GIGABIT/INTEL/FTLX8571D3BCVIT1.htm > > Thanks, > Ashish > > > On Sat, Jul 21, 2018 at 2:17 PM, Zhongyuan Zhao via USRP-users > <usrp-users@lists.ettus.com> wrote: > > Has anyone tried 10G/1G Dual Rate (10GBASE-LR/LW and 1000BASE-LX) 10km > > 1310nm Single Mode Datacom SFP+ Optical Transceiver? > > https://www.finisar.com/optical-transceivers/ftlx1475d3bcv > > > > Thanks. > > > > > > > > Zhongyuan Zhao > > > > PhD Candidate, > > Department of Computer Science & Engineering, > > University of Nebraska-Lincoln > > Suite 117, Schorr Center, > > Lincoln, Nebraska 68588-0115 > > > > On Fri, Jul 20, 2018 at 2:06 PM, Zhongyuan Zhao <zhz...@cse.unl.edu> > wrote: > >> > >> Hi, > >> > >> I am working on a project where several N310s are connected to a > >> fiber-Ethernet switch. The fibers are of single mode with length from > 1km to > >> 10km. My problem is selecting the right SFP transceivers. > >> > >> Currently, I used the official SFP to RJ45 converter (come from Ettus > with > >> N310) followed by another pair of RJ45 to SFP converter. > >> > >> > https://www.amazon.com/gp/product/B06XC1VDMD/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 > >> This is a work around solution. I tried to connect N310 and Dell N3048 > >> switch (2 SFP ports) > >> directly through a pair of 10Gtek SFP transceivers (1Gbps) that come > with > >> the RJ45 to SFP converter but it does not work. > >> > >> Could you recommend any SFP transceivers that work on your case? both > >> 1Gbps and 10Gbps. > >> Does 10Gbps SFP+ transceiver backward compatible with 1Gbps socket? > >> > >> Thank you very much! > >> > >> Regards, > >> Zhongyuan Zhao > >> > >> PhD Candidate, > >> Department of Computer Science & Engineering, > >> University of Nebraska-Lincoln > >> Suite 117, Schorr Center, > >> Lincoln, Nebraska 68588-0115 > > > > > > > > _______________________________________________ > > USRP-users mailing list > > USRP-users@lists.ettus.com > > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
_______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
