pfpoulsen
asked on
Fiber connection between BlackBox Media Converter and Procurve GiBIC
Hi all
I need to connect some procurve fiber GiBICs with some blackbox media converters.
The GiBIC is J4859C and the blackbox converter is
http://www.blackbox.dk/da-dk/fi/984/11645/XS-1000-Converter/All
LMCS212AE-SC10-R2 (single-mode model)
But i can't get any link between those two devices and i can't understand why.
I'm using single-mode patch cable 9/125 with LC connections in one end and SC connections in the other end, no link.. And I have tryied to cross the RX and TX.
If I connect two GiBICs directly with a patch cable 9/125 with LC connecters in both ends i get link so GiBICs is working with 9/125 single-mode cable.
If i connect two media converters with 9/125 SC connecters in both ends i get link, so the media converters also work with 9/125 singe-mode cable.
Why can i get any link between the GiBICs and the Media Converters? Any ideas?
Best Regards, Steffen
I need to connect some procurve fiber GiBICs with some blackbox media converters.
The GiBIC is J4859C and the blackbox converter is
http://www.blackbox.dk/da-dk/fi/984/11645/XS-1000-Converter/All
LMCS212AE-SC10-R2 (single-mode model)
But i can't get any link between those two devices and i can't understand why.
I'm using single-mode patch cable 9/125 with LC connections in one end and SC connections in the other end, no link.. And I have tryied to cross the RX and TX.
If I connect two GiBICs directly with a patch cable 9/125 with LC connecters in both ends i get link so GiBICs is working with 9/125 single-mode cable.
If i connect two media converters with 9/125 SC connecters in both ends i get link, so the media converters also work with 9/125 singe-mode cable.
Why can i get any link between the GiBICs and the Media Converters? Any ideas?
Best Regards, Steffen
SOLUTION
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Do you have any logs from the switch?
Also, check if UDLD (keepalive) is enabled on the switch, the mediaconverter won't support that.
Tamas
Also, check if UDLD (keepalive) is enabled on the switch, the mediaconverter won't support that.
Tamas
ASKER
Hi
1) It's not possible to setup the duplex settings on the modules at the swtich. The media conveter is not manageable, so not settings here either.
2) Yes I've tried to flip the SC connectors
3) No i have not checked any keepalive settings. Is the command something with ULDLD onprocurve OS? Should there be no-keppalive?
Best Regards.
1) It's not possible to setup the duplex settings on the modules at the swtich. The media conveter is not manageable, so not settings here either.
2) Yes I've tried to flip the SC connectors
And I have tryied to cross the RX and TX.
3) No i have not checked any keepalive settings. Is the command something with ULDLD onprocurve OS? Should there be no-keppalive?
Best Regards.
SOLUTION
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ASKER
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=120&prodSeriesId=1827663&prodTypeId=12883&objectID=c01978780
I've just tested it both with and without link-keepalive enabled. Default it was not enabled. Still no link between the media converter and the switch module.
I've just tested it both with and without link-keepalive enabled. Default it was not enabled. Still no link between the media converter and the switch module.
ASKER
I'm testing with a 3 meter patch cable so the distance should not be a problem in this case .. :)
That may be a problem: the LX lasers are optimised for long distance. A too short cable might be an issue: the signal strength does not drop enough, and the receiving end gets a too strong signal. It's usually recommended to use an optical attenuator for short-distance use.
I'm not sure that's the problem in your case, but I don't have a better idea at the moment. Do you have a spare, say 100m patch cord lying around, for test purposes? :)
I'm not sure that's the problem in your case, but I don't have a better idea at the moment. Do you have a spare, say 100m patch cord lying around, for test purposes? :)
ASKER CERTIFIED SOLUTION
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ASKER
We never find find a complete solution.
Have you tried setting the speed and duplex settings manually on both devices?
Kind regards,
Paul