I would like to know if the C2960xr Series has a redundant power supply or only a replacement power supply.If you could you could give me the Partnumber of it or the spare part!

I wold like to know, if catalyst 2960 L Series is compatibility with Transceiver Model GLC-LH-SMD. Becouse I don't undertend the compatibility matrix! I have the scenario, when i need to confirm if the compatibility is correct in this case.Where I ca...