<html><head><style id="axi-htmleditor-style" type="text/css">p { margin: 0px; }</style></head><body dir="" style="font-size: 10pt; font-family: "Source Sans Pro", sans-serif; background-image: none; background-repeat: repeat; background-attachment: fixed;">The problem with FS.com transceivers (or a lot of their products for that matter) is that they do not bear the ACMA C-Tick or RCM as required for certification and use in Australia.<div><br></div><div>Looking at the FS.com website, the RCM compliance certificate (<a href="https://img-en.fs.com/includes/templates/fiberstore/images/img/PDF/rcm-authen.pdf">https://img-en.fs.com/includes/templates/fiberstore/images/img/PDF/rcm-authen.pdf</a>) is for the S3900 24-Port L2 Managed Switch, and the C-Tick certificate (<a href="https://img-en.fs.com/includes/templates/fiberstore/images/img/PDF/ctick-authen.pdf">https://img-en.fs.com/includes/templates/fiberstore/images/img/PDF/ctick-authen.pdf</a>) is for the S3900-24T4S, S3900-24F4S and S3900-48T4S switches.</div><div><br></div><div>You may pay a premium for going original, however you're guaranteed the support and backing from Cisco if anything goes wrong.</div><div><br></div><div>CH</div><div><br><!--axi-signature_placeholder--><br>On Tue, 17/08/2021 12:37, DaZZa <dazzagibbs@gmail.com> wrote:<br><blockquote style="margin-left: 10px; padding-left: 10px; border-left: 1px solid #ccc;"><div style="font-family: " source="" sans="" pro",="" sans-serif;="" font-size:="" 10pt;"="">hey Alex<br><br>I've used fs.com tranceivers extensively, as others have said, and as<br>long as you get them coded correctly (specify your vendor when<br>ordering), they're pretty good.<br><br>With Vocus, I have found that the stated length of the DF link is<br>often - well, understated. So your 11k link could quite likely end up<br>being 12 or 13 (I had one which was listed in all Vocus' documentation<br>and testing reports as 37k's - could not, for the life of me, get a<br>10Gb-ER tranceiver working on the link with an acceptable loss - had<br>to go to a ZR to bring the link up).<br><br>I'd recommend you stick ER tranceivers in this link (good for up to<br>40k's) - and probably go 1550nm rather than 1310. FS has heaps of<br>them, and they're not anywhere near as expensive as genuine Cisco<br>ones. You can try a pair of LR's for shits and giggles (they're only<br>about $40 each), but I'd almost bet they won't work unless you're very<br>luck with the number of joints in the link and the insertion loss<br>levels.<br><br>You *might* need a 3dB attenuator on each end - but they'll sell you<br>those too - and if your receive power isn't above the limit, you can<br>get away with removing it.<br><br>One thing to note is that if you use a non-genuine transceiver and<br>have to log a TAC case, Cisco will immediately tell you so sod off<br>when you log it because it's not "supported" - so it comestimes pays<br>to keep a genuine one on hand to swap into the switch in case you have<br>an issue - but if it's only one link, it's debatable if it's worth<br>doing that - keep a couple of spare FS ones in case they go bad.<br><br>D<br><br>P.S. I am not affiliated in any way with fs.com - just a satisified customer.<br><br>On Tue, 17 Aug 2021 at 10:59, Alex Voigt <a href="mailto:<alex@advtech.com.au>" target="_blank"><alex@advtech.com.au></a> wrote:<br>><br>> Greetings.<br>><br>><br>><br>> Looking for recommendations for a SFP type Transceiver for 11km dark fibre Vocus service.<br>><br>><br>><br>> Anyone has any recommendations for what they have used successfully.<br>><br>><br>><br>> Alex Voigt<br>><br>><br>><br>> ADV Technical Consulting<br>><br>> 3 Furniss Road<br>><br>> Landsdale W.A. 6065<br>><br>> Tel: 08 9302 4866<br>><br>> Fax: 08 9302 4844<br>><br>> Mob: 0419 010 191<br>><br>><br>><br>><br>><br>> Please make a note to use the following email addresses to ensure a prompt response<br>><br>> For Support - <a href="mailto:support@advtech.com.au" target="_blank">support@advtech.com.au</a> & Admin/Accounts - <a href="mailto:info@advtech.com.au" target="_blank">info@advtech.com.au</a><br>><br>><br>><br>><br>><br>> Disclaimer<br>><br>> The information contained in this communication from the sender is confidential. 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