I have a CCR-1009 with an SFP port that displays the info about the SFP transceiver that is installed.
However, I cannot get the same info from a pair of RB2100's with SFP's installed.
Is there an issue with this?

-tp

The first series of RB2011 (where the power socket was inside and the cable comes through a little slit) didn't have the hardware to read the DDI off the SFP's

The later series (with the power socket directly on the back of the box) had the right hardware to read that information off the optics. These ones are usually the 2011-UiAS (with the i in there)

Regards
Alexander

Thanks for the info !!

I have old RB2011UiAS-2HnD-IN with SFP slot, power cable connected inside of the box.

When I tried to install SFP WDM module there is nothing on SFP info tab. Is it possible to use and connect anyway S-35/53LC20D which is recommended in manual?