What you need to know about OTDR Trace Analysis and Interpretation | Educational

Using an EXFO FTB-1 with a 730 OTDR, we review OTDR theory, how an OTDR works, OTDR setup and how to interpret the results.

[@coldCoders]

I love, "im going to zoom into this connector... its wonderful", I love hearing the love and expertise and joy of explaining things you are good at doing, and this is one of those examples :)

[@EXFOTube]

Glad you enjoy it!

[@trollobite1629]

Hi Kevin, flat out best video on OTDR analysis for sure with some real gem tips. I've watched a few of your videos now and I consider them to be exemplary 10/10 from me. Once a fibre man always a fibre man. All the best from the South Coast of England. 👍

[@juliusfuenzalidadatiles9478]

This video is surely a gem. Thank you!

[@coldCoders]

Once you got to 9:50, it made sence how to read otdr reflective events after explaning what reflection is... I have been looking for this for awhile...

[@KevinPeres]

Thank you all for the nice comments. I do not know why I no longer have a high quality version of this. This is a old video I did not only is the file size smaller but so was I LOL.

[@KevinPeres]

I found the high quality version! I did a test upload a month before we streamed this. I will get it over to the EXFOTube Folks

[@superrrrliz]

Thank you for making videos like this!

[@johnose1306]

Good afternoon sir you are doing a great job God bless you

[@mohinderkaur6671]

Great video. very helpful.

[@kelvinsoko331]

Good work sir Thank you

[@josemariamesa2517]

Great!!! Really good presentation, Thank you

[@EXFOTube]

Thanks for the feedback, Jose! Glad you enjoyed it.

[@yudunnome]

Is there not a higher quality of this video that you can upload? It's pretty terrible at 360p

[@coldCoders]

omg its you awhile ago, omg this is so cool

[@vemundmellevold3203]

This was gold for me. Thank you for this turtorial!

[@EXFOTube]

So glad you enjoyed it, Vemund.

[@mustafamusa6644]

Can I use OTDR to determine the optical fiber if it is single or multi mode? Is OTDR able to test multi mode cable??

[@City_Pige0n]

This video was great! Thank you!!

[@johnose1306]

Great one

[@neilvalencia9401]

Very informative..Thankyou..

[@EXFOTube]

Thanks for the feedback, Neil. Glad you found it helpful!

[@naimrozali4654]

hello thanks for the presentation and it's really useful for me

[@EXFOTube]

Glad you enjoyed it, Naim.

[@richardbarley9323]

Quick question Kev, I am on an Offshore substation build, we have MM ans SM links, the company is insisting we use an OTDR to get results, I would much rather use an OLTS. The longest cable is probably 75m, Can I ask your thoughts on using an OTDR ovr such short lengths? I personally think oyu would not get an accurate test result and would have to switch off all parameters on the EXFO to get any kind of pass.. What do you think? Many thanks, Rich

[@Lewismarfo]

Merry Christmas Kevin

[@jugubitrus7295]

Thank you.

[@EXFOTube]

Glad you found it helpful, Jugu! Sorry for the late reply!

[@timlavalla3554]

Hello, anyone know if a 720c module will bidi with a 7200D module?

[@ItsMeJM31]

Hi Sir. I have EXFO FTB-1 OTDR but when I press the power button there's no screen display, still in black screen only. Do you know what's the problem and how to repair it?

[@EXFOTube]

Please contact our technical support team: www.exfo.com/en/contact/technical-support-contact/ and a representative will reach out to you shortly.

[@govindsinghjethi1025]

Great

[@EXFOTube]

Glad you liked the video, @Govind Sigh Jethi!

[@Akash-bl7sh]

Hi, why is my OTDR trace is Full of fluctuations and how does twist in ofc effect the trace?

[@EXFOTube]

Hi @Akash, sorry to hear that please share your email address and someone from the tech support will contact you.

[@user-lf7en6rf8m]

I’m late, my fiber Jesus , thank you so much

[@valehseyidov6495]

Hi, We recently entered into an agreement with a telecommunication company that requires us to measure the lengths of fiber optic cables in specific areas using an OTDR device. As a test, we began measurements from a point known as the Optic Line Terminal (OLT) in one area, using the OTDR device in FTTH mode. This resulted in the generation of 50-60 PDF reports. Our current challenge is processing these OTDR results to determine the total lengths of the cables in the specified area accurately. The difficulty arises because some cables follow the same route before diverging to different neighborhoods. If we simply sum the lengths from the PDFs, we will end up with inaccurate and unrealistic results due to the overlapping routes. We need to identify and deduct these common, mutually used distances to get an accurate total length. We are struggling with pinpointing these overlapping routes/distances. Could you please assist us in resolving this issue?

[@segaoldschoolsega925]

Yea peres with an S me too bro !!

[@jeyburns.t9209]

Sad you don't have hd videos

[@naimrozali4654]

may i get the presentation slide!

[@EXFOTube]

Hi Naim, you can access the content he uses in our online glossary: www.exfo.com/en/resources/glossary/

[@abdullahisalihu3990]

Excellent video

[@amanhasnoname01]

wish those diagrams were made to be seen

[@roxythepariah9914]

I like how the green apc is blue because of the green screen😂

[@drstefankrank]

Because of 360p you can barely see it anyway.