Hi guys,
I keep on reading MM is a dead end. So I was thinking about running single mode fiber (20 meter run). I’d be using an MTP-8 cable and fan out to the 100G SFP. This way I could create 4 x 100G using 1 MTP-8 cable.
Using multimode I have to use all 8 fiber strands so only 1x 100G is possible.
I know SM SFP’s are more expensive XQ+31LC02D (SM) = 229$ vs 89$ for XQ+85MP01D (MM). If we leave that out of the picture, why go for for MM? Any thoughts?
Field termination? It’s not too difficult to field-terminate MM with anaerobic adhesive and polishing. I haven’t tried SM, but I understand it’s harder, and best not done in the field. Which only really leaves fusion splicing or pre-terminated cables.
My 10 cents would be: MM will stay as it is cheaper and it is already there in every DC.
Corning, which company knows a bit about fiber, has made some predictions in favor of MM as well:
https://www.corning.com/data-center/worldwide/en/home/knowledge-center/40-100G-multimode-fiber-connectivity-data-center.html
Seems like integrated multiplexing of a few wavelengths onto a single MM fibre will be the future. I wouldn´t want to wait for the multiplex 100G transceivers compatible with ROS 7 …
Laying a few additional OM4 MM cables seems to me a future proof solution.