Finisar SFP+ Modules for Audio Grade Network Switch (Group Buy for Audiophilestyle.com)

Two questions:

1)The Cisco is multi-mode? 

2) if I use the rj45 sfp optical fiber converter in the following manner as suggested by you:

Wall - lan cable - rj45 fiber media converter - fiber- sotm switch - fiber - ER

Will it work if the fiber between media converter and sotm switch is single mode, and the fiber between switch and ER is multimode? 

Plugging an 10 GHz SPF+ module into a 1 GHz SFP won’t work at all, as the 10G transceiver can never auto-negotiate to 1Gbps. 

Hi! R1200CL,

Thanks for your information. That is true, when two ends use different SFP Modules. For example, one with SFP+ and other SFP. In this case, they will not work. 

So, it is important to have both SFP Module in pairs, same models and speed. They will work in their ways at both ends. The SFP cage is only an interface for switches, most recent switch such as UpTone EtherREGEN and Buffalo GS-BS2016 is working plug and play. 

The SFP deliver and receiver was build inside the motherboard at SFP Modules, so they can sync with their speed. This module design is for datacenter, where they could easily replacement the module when it is out of services. 

So make sure both SFP+ is the same brand and model is more important. 

I hope it can helps. 

Best Regards,

Adrian

AfterDark. 

@AfterDark.

Can you confirm you personally have got the FTLX1475D3BTL to work between EtherRegen and any switch you have available with a SFP cage ? FTLX1475D3BTL in both ends of cause. 

19 minutes ago, R1200CL said:

@AfterDark.

Can you confirm you personally have got the FTLX1475D3BTL to work between EtherRegen and any switch you have available with a SFP cage ? FTLX1475D3BTL in both ends of cause. 

 

Hi! R1200CL, 

Yes, we confirm all the SFP+ listing on this page is working. This is Buffalo BS-GS2016 x 2 connected with Finisar FTLX1475D3BTL as below. 

Best Regards,

Adrian

AfterDark. 

The latest Giesemann OCXO switch we build is working plug and play too. 

33 minutes ago, R1200CL said:

@AfterDark.

Can you confirm you personally have got the FTLX1475D3BTL to work between EtherRegen and any switch you have available with a SFP cage ? FTLX1475D3BTL in both ends of cause. 

 

@AfterDark.

the last posts don't reassure me😥
I hope it is compatible because I have already ordered these Finisars!

..yeah had it been between the EtherRegen and that rebranded FMC.

Also, why isn’t 10GB support stated in the data sheet. 
https://www.buffalo-technology.com/data/uploads/BS-GS_Datasheet_EN.pdf

9 hours ago, R1200CL said:

I think this isn’t available anymore from Finisar. Discontinued. Correct ?
This is Fabry-Perot laser btw. Have some fun and compare jitter against this 1421 data sheets I posted. 

You are right, these are discontinued. However, if you search on eBay these still can be found. New and refurbished.

Well if anyone is using the opticalModule which is also designed by John S, it’s now confirmed these 10 GB only modules won’t work with that device at all. 

10 minutes ago, AfterDark. said:

 

Hi! R1200CL,

 

I shall prepare the list of switch which can use SFP+ . Some of the new switch like Buffalo GS-BS2016 for some reason can support SFP+ even it is not is datasheet. 

 

Thanks. 

 

Best Regards,

Adrian 

AfterDark. 

@AfterDark.

Adrien,
Do you confirm that the Finisar SFP + I ordered are compatible with my etherregen or my switch as you indicated on your online store?
I am in doubt and I do not want to have a bad surprise when connecting.

This SFP+ may work.

FTLX1475D3BNV

As well as this one:

FTLX1475D3BCV

Because it’s dual rate.

However since EtherRegen is NOT a 10 GB compatible device, it’s a waste.

And even if the item in the other end is 10GB, like those nice Mikrotik switches, you’re still only using a one GB line. Devices has to communicate on same rate. 

The only thing I can think about that will make worth paying the extra money (and risk), is that if it measures equally  good as  the FTLF1421P1 series, as well as the 10 GB only FTLX1475D3BTL which is offered here. 
Then you will have a future proof module that will also work in 10 GB network or application where such a technology is utilized.

It will take some effort from John to measure all this. He has an idea how. 
 

My advice to those that have an EtherRegen, or plan to buy one, it to stay safe and purchase SFP 1 GB muddles like the 

FTLF1421P1xCL

or

FTLF1421P1xTL
and maybe the

FTLF1421P1BTL-3G

11 minutes ago, R1200CL said:

This SFP+ may work.

FTLX1475D3BNV

As well as this one:

FTLX1475D3BCV

 

Because it’s dual rate.

However since EtherRegen is NOT a 10 GB compatible device, it’s a waste.

And even if the item in the other end is 10GB, like those nice Mikrotik switches, you’re still only using a one GB line. Devices has to communicate on same rate. 

 

The only thing I can think about that will make worth paying the extra money (and risk), is that if it measures equally  good as  the FTLF1421P1 series, as well as the 10 GB only FTLX1475D3BTL which is offered here. 
Then you will have a future proof module that will also work in 10 GB network or application where such a technology is utilized.

It will take some effort from John to measure all this. He has an idea how. 
 

My advice to those that have an EtherRegen, or plan to buy one, it to stay safe and purchase SFP 1 GB muddles like the 

FTLF1421P1xCL

or

FTLF1421P1xTL
and maybe the

FTLF1421P1BTL-3G

 

 

Hi! R1200CL, 

Thanks for your research on different models. We have FTLX1475D3BNV in stock, customer may consider to change to this Finisar SFP+ to ensure it works on all devices. 

Thanks again!!!

Best Regards,

Adrian

AfterDark. 

31 minutes ago, AfterDark. said:

I shall prepare the list of switch which can use SFP+ . Some of the new switch like Buffalo GS-BS2016 for some reason can support SFP+ even it is not in the datasheet. 

That would be fantastic 🙌

But I would say, it’s enough to just test the EtherRegen with those 10 GB modules, if you have one EtherRegen available. 

Remember the only reason we even consider 10GB modules, or even higher, is the belief in that this technology has lower jitter and then possible lower phase noise.

It may be like that, and I have suggested it in another tread, that you can utilize SFP+ and 10GB modules between devices for maybe other protocols. Like clock interfaces would be great. And probably any other audio digital interface. But we’re not there yet. We don’t even know if we ever will. 
 

I will email Buffalo 😀

23 minutes ago, AfterDark. said:

Thanks for your research on different models. We have FTLX1475D3BNV in stock, customer may consider to change to this Finisar SFP+ to ensure it works on all devices. 

Thnk you for listening too a good advice 😄

I’m quite confident that’s a much safer choice. 

BTW, can you tell us the FMC you’re selling is a TP-link ? Maybe the MC220L ? (9V/0,6A). 

But probably more like the Planet GT-805A that is a 5V / 2 amp module. 
 

Can you confirm that your FMC can be powered by an LPS-1.2 ?

I think those that purchase your FMC, won’t like to use the supplied SMPS. 

3 hours ago, AfterDark. said:

 

Hi! R1200CL,

 

I shall prepare the list of switch which can use SFP+ . Some of the new switch like Buffalo GS-BS2016 for some reason can support SFP+ even it is not in the datasheet. 

 

Thanks. 

 

Best Regards,

Adrian 

AfterDark. 

That would be great. As per my configuration, I would be quite interested to know if they work with the opticalModule and the opticalRendu. 
My system:

Router>Rj45>oM>SFP>
Buffalo2016>SFP>oM>Rj45>Innuos Zen MK3>Rj45>eR>
SFP>oR>USB>RUR>
USB>iR>USB>
DAC.

🤗🙏🤗

8 minutes ago, Superdad said:

That is not correct. Both the Sonore opticalModule and opticalRendu will work with any SFP+ fiber-optic transceiver--as long as what is connected to the other end is also a 1GBe device and the transceivers are matching.  Same for EtherREGEN.

There is no such thing as a "10GB-only" fiber-optic transceiver!

Please refer to John Swenson's and my other posts on this topic in other threads.

@Superdad

Alex,

So the Finisar SFP + modules distributed by Afterdark are compatible with your beautiful Etherregen product? so Afterdark is right that it works?

Laurent

Then the very simple conclusion is then:

EtherRegen, Sonore opticalModule, and probably a lot of other SFP cage devices will work with a 10GB SFP+ module inserted. Especially the FTLX1475D3BTL used in both ends. Very interesting. 
 

That’s the important thing for now. And no reason to cancel orders 😀
 

The speed doesn’t matter. But of cause it’s limited by the internal circuits. 
If the use of this module should favor the “limited” 1 GB SFP modules is another discussion. 

But I can see possible benefits. I probably upgrade my own SFP standard now to the SFP+ FTLX1475D3BTL 😀

@Superdad

Stuipd question, but what’s the alternative. A lower rate SFP port ?
Wouldn’t even the nice Mikrotik CRS305_1g_4s be expected work ?

5 minutes ago, Superdad said:

That is correct.

But ONLY if the device (typically switch, though for some an opticalRendu or Lumin X1) that the OTHER end's transceiver is ALSO a 1Gbe-only SFP port.

Can confirm this with the ftlx1471d3bcl I have (10gb SFP+) working with both the opticalModule and EtherRegen.  Having to use a 1gb SFP on the 10gb capable SFP card side, as it tries to negiotate to 10gb and ofcourse falls flat on its face at that point.  Still get the SQ benefits of the 1471 transmitting though! 

I have a pair of FTLX1475D3BTL on the way too (I'd expect same behaviour mind).

8 minutes ago, Superdad said:

 

That is correct.

But ONLY if the device (typically switch, though for some an opticalRendu or Lumin X1) that the OTHER end's transceiver is ALSO a 1Gbe-only SFP port.

Thanks Superdad for clarification there was a lot Beat around the bush last 2 days