Unless they are km apart, you should be able to use multimode fiber. As stated above, many switch have fiber ports already. But assuming you don't, what port speed do you want? Fiber transceivers only go one speed, so just get one on each end that are identical. You will need to have the fiber termination and the input of the transceivers to match also. It could be LC or SC, but it doesn't really matter- just make sure it all matches in terms of speed and connector type. If you have Gig ethernet copper jacks, use LC connectors, because modern switches with fiber inputs will be using LC connectors. If you can't do that now because you have no gig ethernet copper jacks, then down the road you will have to either replace the fiber or have someone replace the connectors.
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by: powercramPosted on 2009-03-24 at 12:29:18ID: 23972207
On higher-end Cisco or HP (or other) switches you can get fiber interfaces. With this all you need is a fiber "cable" the approximate length. Your reseller (CDW for example) can tell you exactly what you'll need - I don't remember the exact spec's on the cable ends.