08-08-2009 08:58 AM - edited 03-06-2019 07:09 AM
We have pulled in our first fiber cable between two buildings and I was wondering if there is any special configuration needed to get a link going with glc-sx-mm. I have done the basic test on the fiber with an led light source and there is light coming through on the pair we have setup. I just don't get an activity/link on the sfp.
I was going to get a patch cord to get our equipment. What is the minimum length a glc-sx-mm can have for a patch cord between two switches?
08-08-2009 06:09 PM
Hi Dan,
What kind of fiber? Multimode? What is the core size? And what is the modal bandwidth? These information should be listed on the fiber skin. The reason I am asking is if it is a MM, there are different maximum distance. Please see Table 1 of the link below.
Also for directly connected fiber patch cord. The minimum distance is 2 meters (~ 6 Ft.).
HTH,
jerry
08-10-2009 05:09 PM
Its 50 micron multimode cable. We did spec it according to that site before we installed it. I'm not sure on the modal bandwidth.
08-10-2009 05:40 PM
Did you check out the power level of the fiber? Table 2 of the spec said if you are within 0 to -17 dBm, you should be fine.
Regards,
jerry
08-10-2009 05:50 PM
I'm guessing I need some kind of test equipment to check the power level?
08-10-2009 05:52 PM
A power meter will do it.
Also have you tested the GBIC to see if they are good?
Regards,
jerry
08-10-2009 05:54 PM
Ok.
Not yet, getting an LC to LC patch cable tomorrow to test the GBIC's.
Thanks,
Dan.
08-11-2009 12:51 PM
two quick questions are the interfaces possibly shutdown and did you try to transpose the fiber. Sometimes it is the little things.
08-11-2009 02:52 PM
I have tried both many times. Thanks.
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