10 Gb fiber certification
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10 Gb fiber certificationExpand / Collapse
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Posted Friday, March 05, 2010 8:52 AM
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We currently use both Lantek 6/7 and Fluke DTX-1800 for certifying both copper & fiber.  We are starting to see more requirements for 10 Gb fiber backbones (50 um LOMM).  Will either of these level III testers do the trick or are they limited to 1 Gb?  I have sent e-mail to both manufacturers but have yet to see a response.  Is OTDR testing required.  I have seen some tech papers on bit error rate testing, but I believe that relates to the fiber manufacturer and not the field tech.  I did a search of the forum and turned up zero results.

Any info that steers me in the right direction would be appreciated.  Thanks.

Post #4553
Posted Friday, March 05, 2010 1:48 PM


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According to the DTX Fiber Modules Data Sheet, the GFM2 supports 10G (http://www.flukenetworks.com/fnet/en-us/StreamIt?Document=2131174)


Tim Deely RCDD, RTMP(i)

DSU, llc

Tim.Deely@DSUllc.us

Post #4557
Posted Friday, March 05, 2010 7:46 PM


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I've not seen your question come into support@flukenetworks.com

I believe the answer to your question on the DTX CableAnalyzer can be found at:

http://www.flukenetworks.com/fnet/en-us/supportAndDownloads/KB/Datacom+Cabling/DTX-xFM2+Fiber+Adapters/10+Gigabit+Ethernet+over+fiber+-+DTX+xFM+Series.htm

If this is not the case, please advise. In the case of the LanTEK 6 or 7, if it is not the new LanTEK II, then the source for the multimode modules is going to be a VCSEL at 850 nm and an FP Laser at 1300 nm. Take note that the article above states the limits are derived using an LED source for multimode links with mandrels. The VCSEL source will give you an optimistic reading. From the Ideal Industries website:

http://www.idealindustries.com/media/pdfs/products/supplements/led_vs_laser_application_note.pdf

This article is referring to MPD and not Encircled Flux when talking about IEC 14763-3 compliance. MPD is going away to be replaced with Encircled Flux.

Fluke Networks as with Ideal Industries new LanTEK II sells the DTX-GFM2 (VCSEL option) because there are customers who believe it should be tested with a VCSEL. In the case of the DTX-GFM2, we are careful to use the term Qualify and not Certify. With Encircled Flux requirements coming to TIA, that will pretty much kill the notion of using a VCSEL source for loss/length certification totally.

The standards continue to evolve and I hope this clarifies the current status. Any spelling mistakes are for your amusement only; it's Friday afternoon and I'm off home.


Kind regards

Adrian Young
Senior Technical Support Engineer
Fluke Networks Technical Assistance Center

Did you accidently delete results from your DTX?

Post #4566
Posted Monday, March 08, 2010 7:24 AM
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Thanks to everyone for the responses.  I went to the links provided and read the material several times.  Tell me if I came away with the right info:

If I want to "certify" the backbone for 10Gb, I should use the DTX-1800 with the DTX-GM2 fiber modules.  If I use the DTX-MFM2 modules (LED source), this may not be acceptable.

Post #4572
Posted Monday, March 08, 2010 3:30 PM


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Trenchdog (3/8/2010)
Thanks to everyone for the responses.  I went to the links provided and read the material several times.  Tell me if I came away with the right info:

If I want to "certify" the backbone for 10Gb, I should use the DTX-1800 with the DTX-GM2 fiber modules.  If I use the DTX-MFM2 modules (LED source), this may not be acceptable.

No. The Fluke Networks article states that the limits for 10GBASE-S are derived from an LED source - therefore you should use an LED source.

Kind regards

Adrian Young
Senior Technical Support Engineer
Fluke Networks Technical Assistance Center

Did you accidently delete results from your DTX?

Post #4583
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