A direct attach cable is not suitable for a 50' run due to EMI/RFI infiltration. The maximum length recommended for enterprise is 30', but audiophiles should not even go anywhere near that length.
SFP Rolling? Anyone?
- Thread starter bazelio
- Start date
Yes. I used the Finisar FLTX1475D3BTL for about 10 months before replacing them with the OptoSpan PSFP-11DT31K002 about a month ago.
Prior to using the OptoSpan FO cable I used Ipolex FO cable, which is a pretty low end product.
One of the interesting things to me about the OptoSpan LCELITE FO cable is that OptoSpan make their own proprietary ferrule/LC connector to reduce insertion loss compared to a generic LC connector. Their specs indicate 70% less insertion loss, and I can confirm that the connector feels like a tighter connection in the SFP to me. I believe the cable itself is a Corning product. So I've bought into the concept that a lower insertion loss connector combined with higher quality Corning cable make for a better overall FO cable. It definitely sounds better than the Ipolex cable I was previously using. (No, I'm not affiliated with OptoSpan LOL)
OptoSpan PSFP-11DT31K002 and OptoSpan LCELITE FO both on order from www.sanspot.com. I’m still looking for a 20M version of the Cisco SFP-10G-AOC that bazelio recommended. I have some messages in, I’m sure someone can order it.
I’ve got the Finisar FTLF1318P3BTL and Finisar FTLX8571D3BCL on order too. Already have the Finisar FTLX1475D3BTL, so gonna have a big ol’ SFP shootout when the rest come in. Also awaiting a run of the Commscope FFWLCLC42JXF075 to pair with the Finisar FTLX1475D3BTL, per After Dark recommendation. Thanks for all the info and recommendations everyone, I’ll let you know what I think.
I’ve got the Finisar FTLF1318P3BTL and Finisar FTLX8571D3BCL on order too. Already have the Finisar FTLX1475D3BTL, so gonna have a big ol’ SFP shootout when the rest come in. Also awaiting a run of the Commscope FFWLCLC42JXF075 to pair with the Finisar FTLX1475D3BTL, per After Dark recommendation. Thanks for all the info and recommendations everyone, I’ll let you know what I think.
Hi everbody,
I tried out an original Cisco SFP-25G-AOC at the weekend. The tolerances are supposedly higher with the 25G network, but the result was very disappointing. The Finisar FTLF1318P3BTL modules with the simple yellow single-mode fiber cables are much better.
I would be interested to see if the Opstspan LCElite™ Ultra Low Loss Fiber Cables (Single-Mode) really make a difference when used with the Finisair 1318.
Regards Mr. Analog
I tried out an original Cisco SFP-25G-AOC at the weekend. The tolerances are supposedly higher with the 25G network, but the result was very disappointing. The Finisar FTLF1318P3BTL modules with the simple yellow single-mode fiber cables are much better.
I would be interested to see if the Opstspan LCElite™ Ultra Low Loss Fiber Cables (Single-Mode) really make a difference when used with the Finisair 1318.
Regards Mr. Analog
The copper cable is a bit more forward sounding and starts to highlight lower frequencies a bit too much for my liking. Treble is a bit recessed. It retains midrange nuance and low level detail. Overall it's just a less balanced sound, and for this reason, I continue to prefer the Finisar optical to the direct attached copper cables.
I used Finisar FTLF1318P3BTL modules for a long time, and thought I should try a pair of Finisar FTLX1475D3BTL. I found the 1475 modules kind of mushy, lacking definition and transient snap. I much preferred the 1318. Then I had the idea to try one of each.
The EtherRegen was not happy with the 1475, it got very warm, which may have negatively impacted sound quality. Using the 1475 in the oMD with a 1318 in the ER was a winner. Smoother highs than a pair of 1318s, with added detail and low end heft of the 1475.
A couple of WBF members I know tried the 1318/1475 combo also preferred it, but we're all using the oMD/ER combo. If anyone here has 1318 and 1475 transceivers, give this a go. I would be interested to hear your results, especially if you are using something other than the Sonore/UpTone combo.
The EtherRegen was not happy with the 1475, it got very warm, which may have negatively impacted sound quality. Using the 1475 in the oMD with a 1318 in the ER was a winner. Smoother highs than a pair of 1318s, with added detail and low end heft of the 1475.
A couple of WBF members I know tried the 1318/1475 combo also preferred it, but we're all using the oMD/ER combo. If anyone here has 1318 and 1475 transceivers, give this a go. I would be interested to hear your results, especially if you are using something other than the Sonore/UpTone combo.
what FO cables?
did you let the transceiver settle in?
what do you mean "The EtherRegen was not happy with the 1475" ?
did you let the transceiver settle in?
what do you mean "The EtherRegen was not happy with the 1475" ?
LC to LC Fiber Patch Cable, Corning SMF-28 Singlemode 9/125um Ultra Optical Fiber, Duplex, Yellow Riser OFNR Cable Jacket
I didn't leave the 1475 pair in my system for very long, because it was not pleasant to listen to, however I brought my oMD and well-broken in 1475 to a friend's house, which I mentioned here:
AFTER DARK & MORE Brands Fibre Media Converter - Your opinions?
Are any one of these FMC 2.5Gbit+ ? My ISP is @1200mbit right now and coax modem output is 2.5Gbit RJ45 port. I already have an ER for the streamer/appletv parts so wanting a fiber isolation before my core switch (Mikrotik CCR2004-1G-12S+2XS). No FMC that I know of is 2.5Gb. But some of the...
www.whatsbestforum.com
The ER got much warmer than usual, despite having a heat sink mounted. The 1475 got so hot it was uncomfortable to hold in my hand.
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Did you mark your transceivers, which one is the sender and receiver - kept it to the same directionality.
Do you have a brand of the cable instead of the material inside.
For info, my eR with 1475 has been operating for ~3.5 years. No heatsink. Room temp ~28-30 degrees.
Do you have a brand of the cable instead of the material inside.
For info, my eR with 1475 has been operating for ~3.5 years. No heatsink. Room temp ~28-30 degrees.
I brought my oMD to his house, with my 1475 mounted. So, yes, same directionality
It is branded SpeedyFiberTX, but that doesn't matter, it is re-branded Corning cable.
I didn't say the excess heat would cause failure, I said it may be affecting performance. Why not try a Finisar FTLF1318P3BTL instead? It's an inexpensive tweak, and trying is the only way you can know whether it's an improvement.
I dont think that's how it works. I have some branded cord labelled Corning SMF28 etc.
I still preferred Corning's manufactured cord (040402g5120010m - 10m)
Quality is different. However yet to try Optospan
In the past I mixed some modules but felt my stereo image became smaller. Probably preference.
I have no issue with my 1475s SQ. just curious if its factors involved on your/others setup
I still preferred Corning's manufactured cord (040402g5120010m - 10m)
Quality is different. However yet to try Optospan
In the past I mixed some modules but felt my stereo image became smaller. Probably preference.
I have no issue with my 1475s SQ. just curious if its factors involved on your/others setup
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Unless you used a Finisar FTLX1475D3BTL at 1Gbit, feeding a Finisar FTLF1318P3BTL in your ER, it was not the same test.
Not just mine, but also two others with different systems who bothered to try.
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Thank you, @djsina2, for your comment. The very many articles I have read about insertion loss clearly indicate that it is a thing. Please provide support for your statement/ theory, as I look forward to reading more about your assertion.
https://www.cablexpress.com/blog/fiber-optic-insertion-loss/
https://www.flukenetworks.com/blog/...g-101-insertion-loss-matters-fiber-and-copper
https://www.holightoptic.com/insertion-loss-and-return-loss-in-fiber-connectors/
Ciao Italia!
could you provide a link where I can buy these particular Transceiver OptoSpan PSFP-11DT31K002 ?
also the cable of course! here in Europe I have not seen much around!
...in the end I ordered two single-mode Finisar FTLF1318P3BTL industrial grade 1 gigabit, a nice OS2 cable from Mouser of excellent quality, I connected the output of my first Qnap fiber switch to the input of the Sonore opticalModule Deluxe v2 and then exited with a Shunyata Omega network cable into the other Ansuz D2 switch and then went into the other Telegartner M12 Premium...
I felt an improvement, a sense of less hardness, that is, it's not that there was any problem before, but by making this change I felt a slight shift towards a sense of greater naturalness, for now these are the sensations...
that is, the starting idea was:
try to clean what comes from outside through the various mandatory routers of the ISPs, through both an initial fiber optic barrier but then returning to electrical using an excellent media converts from Sonore and using excellent quality cables...
PS:
I had difficulty finding the Finisar FTLX1475D3BTL from traditional suppliers, it seems to be out of stock
is there anything on ebay from China, but will they be originals!?
I felt an improvement, a sense of less hardness, that is, it's not that there was any problem before, but by making this change I felt a slight shift towards a sense of greater naturalness, for now these are the sensations...
that is, the starting idea was:
try to clean what comes from outside through the various mandatory routers of the ISPs, through both an initial fiber optic barrier but then returning to electrical using an excellent media converts from Sonore and using excellent quality cables...
PS:
I had difficulty finding the Finisar FTLX1475D3BTL from traditional suppliers, it seems to be out of stock
is there anything on ebay from China, but will they be originals!?
the idea that I would like to pass on, at least that's what I tried, is to insert a switch (not necessarily audiophile grade) maybe a professional switch or better industrial or similar, I had a Qnap QSW-1208-8C fiber that I hadn't used for a while and I also found myself with a Sonore media converter Deluxe v2, here's the idea that brought an improvement in an already advanced configuration is to create a barrier with a fiber optic connection between the ISP router a first network that manages the IT part of the house and which can remain at 10GbE and the entire side dedicated to audio. So get a router with sfp+ cage, there's a moment Asus just released, in my case I use a Netgear Nighthawk X10 R9000, which acts as a router, (I also have to use the mandatory one from the ISP) so there are two... from the router you exit via fiber optics to enter the first Qnap QSW-1208-8C switch which manages all the other users via fiber, and it always exits via fiber with Finisar industrial grade 1 GbE to arrive in the Sonore opticalModule Deluxe v2 from here with quality cables in the second Ansuz switch then in the third and finally in the Music servers; now I use two, a Jcat XACT S1 EVO and a Lucas Domansky LDMS Music Servers. They are both exceptional, I would say complementary, among other things they have an unbeatable quality/price ratio, you will have to go much higher with money to hear differences, (perhaps, in the sense that it is not even certain that there are) ...
so in the end I think that even in a less sophisticated network interposing a fiber switch between what comes in from outside and the delicate path of liquid music is a good system to immediately obtain excellent results! using industrial grade modules and single-mode cables may be preferable. I remember however that I also liked the sound with the multimode, I should do more tests on this. then there would be the DAC Direct Attach Cable cables, After Darck sells some examples at non-negligible prices ...
so in the end I think that even in a less sophisticated network interposing a fiber switch between what comes in from outside and the delicate path of liquid music is a good system to immediately obtain excellent results! using industrial grade modules and single-mode cables may be preferable. I remember however that I also liked the sound with the multimode, I should do more tests on this. then there would be the DAC Direct Attach Cable cables, After Darck sells some examples at non-negligible prices ...
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