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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Hi Jonathan,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Thanks, this kind of feedback is really useful – I was hoping I could get away with it. I grabbed a cheap 10 mW VFL, so I think regardless of any
mismatches I might be OK!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">For what it’s worth though (and for anyone else), I ended up finding that buying a female LC to LC MMF coupler, along with a standard LC to SC patch
cable is much cheaper and easier to find than trying to get an LC to SC adapter. So that’s what I went with, so all my bases are covered.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Thanks all! Have a good weekend.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Rhys.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Jonathan Brewer [mailto:jon.brewer@gmail.com]
<br>
<b>Sent:</b> Friday, 25 September 2020 7:51 PM<br>
<b>To:</b> Rhys Hanrahan <rhys@nexusone.com.au><br>
<b>Cc:</b> ausnog@lists.ausnog.net<br>
<b>Subject:</b> Re: [AusNOG] Basic question about fibre visual fault locators<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">In my experience using visual fault locators to trace MMF, you won't need mode conditioning patch cables at these short distances. You will get enough light through to find your fibre at 300m even using mismatched adaptors and patch leads.<o:p></o:p></p>
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Take care with these lasers, you can get really powerful (read dangerous) ones off Uncle Ali.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-JB<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Fri, 25 Sep 2020 at 17:04, Rhys Hanrahan <<a href="mailto:rhys@nexusone.com.au">rhys@nexusone.com.au</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt">Hi Guys,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt">Thanks for the info! The problem is that the site has a wide range of MMF. A mix of SC, FC and ST on all the patch panels. As well as a mix of OM1,
OM2 and OM3/4. So given I have to buy local I was hoping to avoid having to buy a bunch of different $15-$20 patch leads that I will only need to use once for tracing.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt">On the other hand the “switch” end of the existing patch leads are all LC so that would simplify things – but of course need a female LC to X end
for that.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt">The cables we are trying to trace are somewhere around 200-300m (they are between different buildings). I was hoping that despite some light loss
between MMF and SMF, there should be enough left over for basic tracing (we are not fault finding yet – not sure if we will need to, and in that event we’d just hire someone). Just trying to re-use old MMF to get an NBN service where we need it, so trying
to avoid expense as much as possible.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt">Sounds like it might be worth it to just keep hunting for a MMF adaptor in this case!</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt">Rhys.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> Mark Foster [mailto:<a href="mailto:blakjak@blakjak.net" target="_blank">blakjak@blakjak.net</a>]
<br>
<b>Sent:</b> Friday, 25 September 2020 6:39 PM<br>
<b>To:</b> Rhys Hanrahan <<a href="mailto:rhys@nexusone.com.au" target="_blank">rhys@nexusone.com.au</a>>;
<a href="mailto:ausnog@lists.ausnog.net" target="_blank">ausnog@lists.ausnog.net</a><br>
<b>Subject:</b> RE: [AusNOG] Basic question about fibre visual fault locators</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-NZ" style="font-size:11.0pt">Single Mode has a very, very narrow light-path (6u) as opposed to Multi-Mode (50u).</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-NZ" style="font-size:11.0pt">They’re not compatible with eachother – I’ve never used a VFL but I used to work on campus fibre (MMF OM1, OM2, and OM3, and SMF SM1)
routinely.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-NZ" style="font-size:11.0pt">When I didn’t have the connectors I needed, a short patch lead usually did the trick.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-NZ" style="font-size:11.0pt">Can you use a short patch lead that’ll get you over to your required interface?</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-NZ" style="font-size:11.0pt">MMF Patchleads are usually fairly readily available in various endpoint combinations, as are SC-SC female-to-female (line joiners) and
usually, LC-LC versions of the same (which are just for plug alignment, and aren’t type-specific.)</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-NZ" style="font-size:11.0pt">(Colours are specified by the standards but that’s all).</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-NZ" style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-NZ" style="font-size:11.0pt">Mark.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-NZ" style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-NZ" style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-NZ" style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> AusNOG <<a href="mailto:ausnog-bounces@lists.ausnog.net" target="_blank">ausnog-bounces@lists.ausnog.net</a>>
<b>On Behalf Of </b>Rhys Hanrahan<br>
<b>Sent:</b> Friday, 25 September 2020 8:26 pm<br>
<b>To:</b> <a href="mailto:ausnog@lists.ausnog.net" target="_blank">ausnog@lists.ausnog.net</a><br>
<b>Subject:</b> [AusNOG] Basic question about fibre visual fault locators</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-NZ"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-GB" style="font-size:11.0pt">Hi Everyone!</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-GB" style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-GB" style="font-size:11.0pt">I have a pretty basic question about VFLs. I haven’t used one before but we need to trace some existing old MMF at a site and am about
to buy a cheap VFL that has a universal connector for SC, ST, FC. We need LC as all the patch leads convert to this. But all the LC female to SC male connectors I can see around are either SMF, significantly more expensive or internationally shipped. Need
to get my hands on this for next week. </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-GB" style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-GB" style="font-size:11.0pt">I understand that in normal circumstances that mixing MMF and SMF spec equipment would be a no go,
<b>but would it be sufficient to use a SMF adaptor just for the purposes of fault-finding/tracing in this case?</b></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-GB" style="font-size:11.0pt"> </span></b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-GB" style="font-size:11.0pt">I was looking at an adaptor like this one, coupled with a separate cheap VFL:
<a href="https://www.ebay.com.au/itm/SC-Male-to-LC-Female-Single-Mode-Fiber-Optic-Hybrid-Optical-Adaptor-Converter/353200623750" target="_blank">
https://www.ebay.com.au/itm/SC-Male-to-LC-Female-Single-Mode-Fiber-Optic-Hybrid-Optical-Adaptor-Converter/353200623750</a></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-GB" style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-GB" style="font-size:11.0pt">This “looks” like it is the same adaptor all the VFLs are bundling in with the tool anyway (but they are all being shipped internationally).
Is there any reason not to settle for this? Thanks!</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-GB" style="font-size:11.0pt;color:black"><br>
Rhys Hanrahan<br>
Chief Information Officer<br>
Nexus One Pty Ltd</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-GB" style="font-size:11.0pt;color:black"><br>
E: <a href="mailto:support@nexusone.com.au" target="_blank">support@nexusone.com.au</a><br>
P: +61 2 9191 0606<br>
W: <a href="http://www.nexusone.com.au/" target="_blank">http://www.nexusone.com.au/</a><br>
M: PO Box A356 Sydney South, NSW 1235<br>
A: </span><span lang="EN-GB" style="font-size:11.0pt">Level 12 227 Elizabeth St<span style="color:black">, Sydney NSW 2000<br>
<br>
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