Hi,
I think that module only takes 1G SFPs. The 100Fx are supported in WS-X6148-FE-SFP.
http://www.cisco.com/c/en/us/td/docs/interfaces_modules/transceiver_modules/compatibility/matrix/OL632702.html#48450
http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6500-series-switches/product_data_sheet0900aecd801459a7.html
Thanks
John
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