I've bought their DWDM 80km 10gig and they are working beautifully on a couple amplified circuits with both Cisco and Juniper routers. I've also bought gray optics and DACs. The only issue I've noted with some QSFP+ DACs is some kind of programming issue where the serial number is mis-read by some models of our Juniper switches. Another oddity is that each end of some of our DACs have a separate serial number...we just record both in our inventory tracking system. On Tue, Jan 31, 2017 at 04:17:14PM +0100, Karl Gerhard wrote:
Hello,
fs.com offers DWDM optics that are cheaper than CWDM optics: CWDM 80km 10G for 600$ http://www.fs.com/c/cisco-cwdm-sfp-plus-2425?70-80km DWDM 80km 10G for 420$ http://www.fs.com/c/cisco-dwdm-sfp-plus-2485?70-80km
This is significant. Is this for real? Has anybody bought their DWDM optics?
Going with DWDM and passive Mux/Demux seems to be cheaper nowadays than going with CWDM.
Regards Karl