Adding FE port to 2600
I've researched conflicting information regarding the addition of fast ethernet ports to a 2600 series router. Modules such as the NM-1FE-TX would seem to fit the bill, but I can't definitively say this module would be compatible with a 2600. Would anyone know for sure? And what other options might I have (if any) for adding FE port(s) to a 2600?