Having problems installing two new linksys switches with GBIC SFP fiber modules between two buildings

I just bought a two new linksys switches and two GBIC fiber modules.  The orginal switches I am replacing had Multimode SC connectors.  The fiber patch box mounted to the wall has ST connectors.  So it orginally had a ST to SC fiber patch cable to connect them.  I bought two new patch cables for the new equipment that goes from ST to LC connectors.  The new fiber modules are Gigabit.  I have tried everything I know to try the only thing I can think of is the new patch cables to convert the connectors have the wrong type of size of fiber cable ?
ComptekhsAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

packetguyCommented:
Did you try swapping the fiber connectors at one end? There is no guarantee that fiber patch cable have the polarity you need. Often you have to swapyje connectors on one end of a fiber run to get the send port on one switch talking to the receive port on the other switch.

If that's not it, tell me the markings on the cable between the buildings and also ok the patch cables.
0
kdearingCommented:
What type of multimode fiber is between the fiber patch boxes? 50 or 62.5?
Your fiber patch cables must match.
0
ComptekhsAuthor Commented:
packetguy the orginal switches with fiber modules was 100 speed and had a SC connector on both switches and on the orginal you have to match both sides up I didnt think itwas reversed.  Do the new LC fiber modules need reversed like that or has it always been like that?
0
Ultimate Tool Kit for Technology Solution Provider

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy now.

ComptekhsAuthor Commented:
kdearing does the fiber cable usually have the size marked on the outside what should I do if it doesn't have it marked on the outside?  I bought the same size of fiber patch cable adapters but, I will probably have to have the same sized ones as the cable going between the fiber patch panels then in each building?
0
ComptekhsAuthor Commented:
I will have to wait until Tuesday to check the sizes out.
0
ComptekhsAuthor Commented:
I had one idea what if I bought two of those little plastic SC female to LC male adapters that has no fiber cable it just couples the original cable adapter from the old fiber module to the new fiber module with LC connector.  I am thinking of an adapter like this http://www.cypressindustries.com/news_pr_8april.html so then I wouldn't need to worry about finding the right size of fiber cable ?
0
ComptekhsAuthor Commented:
I just found this page http://www.cypressindustries.com/fiber_optics_cable_products.html would I still need to worry about the fiber size?
0
kdearingCommented:
Yes, the size should be marked on the fiber, something like: 50/125 or 62/125 (62.5/125).

I assume the existing fiber jumpers were the correct size.
If so, then you can use adapters; although I don't like to use them, not as reliable.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Switches / Hubs

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.