Part numbers include:
GLC-SX-MM= for Multimode fiber - list price $500
GLC-LH-SM= for SingleMode fiber - list price $995
Cisco does not have a mono fiber model, only duplex fiber (2 fiber strands).
SFP's both has "LC" type end connectors. Assuming that all of your fiber pairs terminate in MDF, then you'll need the appropriate patch cables to go from LC to whatever terminator is in your fiber patch panel (SC, ST, MTRJ)
As photograffiti said above, these are Gigabit (1000) speed only and are not compatible with any 100Mb connections. If you want to connect via fiber to 100Mb switch, you might want to consider replacing that switch with one that has a 1Gb fiber connector, like a 2960 or Express 500.
One thing about the Express 500's is that they do not have a console port and are not configured, managed like any other Cisco switch, but are quite simple. You can still do vlans, enable port security, etc. They are good little switches, though.
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by: photograffitiPosted on 2006-10-01 at 17:19:11ID: 17640206
The SFPs are not compatible between different fiber types. You will need the right SFP for the right type of fiber. Also, remember that you have different type of single mode SFPs too. If you need to run a long distance, like 10 kilometers, then you will need the higher end SFPs which have stronger lasers.
As for speed, they are set to just gigabit. Why would you want it to run slower? If you have another device that is running 100mb over fiber then it is like 100Base-FX, which is not compatible with the current gigabit fiber standards.
As for 2960 and 500 family, if you're not doing anything fancy at all then I would get the 500 family. That's exactly the reason it was created, to cover the lower-end of the switching spectrum. The reasons that make the 2900 'better' are all the reasons you've said you won't need.