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I can confirm 15.0.2(SE) supports the -ER optics. I loaded it onto a 3560E and put the SFP+ into a OneX adapter, and it recognized it and was happy. I also checked the 3750X with the 10G Network Module, and it was happy there too. Yay and Finally!
Brett,I downloaded the 3750 stencil pack, and it has the 3750X-12S-S stencil, but does not have the -24S version. Can you check on this?Thanks,Merrill Hammond