Here’s the SFP connection chart of my system with RS130 and RD160. Names of SFP Modules and Fiber Optic Cables used are included.
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I have similar, except I combined the FMC and your first router with an SW6 from LHY. SFP to Melco and then to RS130. I do not have the 160…
Can you explain a bit, why you have the setup like this?
Why not from Router direct to the Melco with RJ45? Would the Melco not convert it to SFP like the FMC does?
Any reason for this?
The Melco actually would do that. For me the Melco is far away from modem. So I put the SW6 there as it feeds some other things over RJ45 but feeds the melco via a 50’ Fiber cable. 100% isolated from the rest of my network.
Nice Diagram. Thanks, gave you a 
BTW, What tool did you use to create your chart/diagram?
I was actually thinking the LHY SW10 but it was no longer available. So I compared the SW6 and S100/2, and I found the S100/2 is better than the SW6. Sadly the price is doubled. Anyway, I picked the S100/2 in the end.
I tested skipping the FMC and connecting Ethernet to the Melco directly.
But I found the music is more open and airy with the FMC in between. Also, bass, mid-range and treble are all improved a bit as well. I can hear the extra isolation is offering better sound quality in these settings.
I’ve been hesitating whether to stack another Melco in my setup. But the S100/2 isn’t cheap and I don’t know will the investment be justified. 
Thanks. I use Photoshop basically with some help of Windows image capturing tool.
Instead of FMCs and fiber, you can use the elegant and cheap on-box solution, SilentPower LAN iPurifier Pro.
https://the-ear.net/news/silentpower-lan-ipurifier-pro-from-ifi/
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Thanks but the price of both is more or less the same. 
I agree, …and … : Where is the fun then 
I don’t understand why you mixed the Finisar module with Huawei (I think you wrote wrong Hauwei). It is the difference in quality (type of laser used) from heaven to earth between the two.
And regarding the optical fiber used, I would recommend glass optical fiber, not plastic, from Corning, Commscope or Phoenix Contact.
The FMC from LHY is not a light, you could look at the TeraDak products.
The new switch from Melco:
https://tw-my--hiend-com.translate.goog/?_x_tr_sl=zh-TW&_x_tr_tl=en&_x_tr_hl=zh-TW&_x_tr_pto=wapp
Wow! But expensive. For my finances, I’ll probably consider Melco 100/2.
The price of the Melco S1 is more than the RS130+RD160 together. Congratulations SPaul, if you got it.
Yes, I put Finisar (1) and Huawei (2) in the connection from LHY FMC to Melco S100/2. The Huawei is more pricey than the Finisar. Two Huawei together is too bright to me. I found the mixing is the best balance over two Finisar with the 10Gtek cable.
I have the Corning cables as well. But I found other brands and the mixing use of them sound better in my setup. They may not be the choices for others.
After all, some people like more bass in music and some people don’t. Preferred choices are personal.
Obviously it’s a matter of taste.
But I think we must have a reference, the sound in a concert hall at a live classical performance.
Oh no! I did not buy such a thing! Those who would buy would deserve compassion, not congratulations!
I put the link only as a title of information and for some on this forum for whom money does not matter!
I’m not a big fan of Melco and of “audiophile” switches in general! I think that network equipment is another “fish food”, you need a lot of research and expertise in the field, which hi-fi companies do not have.
If you research carefully, you will find that all these audiophile switches come from cosmeticized industrial switches (a linear source, a beautiful box, several LEDs, etc.) and the price increased dozens of times.
Sure. Sound in a concert hall and sound in a jazz cafe are different too. 
Well, it depends how you see it. Truly there are cosmeticized products but there are also nice products pursuing the best in every details.
Of course a congratulations if I could afford it. 