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April 22, 2021, 08:13 PM #1
- Join Date
- Feb 2016
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- west Michigan
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Fiber optic Vs Cat type Ethernet cable
Ive read where some have used FMC's to use fiber cable in place of a long run of Cat type cable.
Looking for feedback on this.
I have a 10M Cat 8 to my server and wonder if there would be an improvement by going the fiber optic route.My System
Acoustic Revive RTP-4
Innuos Pulsar
Lampizator BALTIC4
Cary SLP-05
Pass XA30.5 or
Line Magnetic 845ia
Reference 3A Reflector's
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Cables & Tubes "subject to change without notification".
Complete system on battery power/solar
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April 22, 2021, 09:21 PM #2
Re: Fiber optic Vs Cat type Ethernet cable
This is preference dependent. You will have to try it to find out whether you like or not.
If you're using Lumin A1, your choice of FMC is limited due to the 100Mbps Ethernet port.
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To do fiber network isolation is to use a pair of fiber media converters (FMC) in a setup like this:
WiFi router or network switch - (LAN cable) - FMC - (fiber) - FMC - (LAN cable) - Lumin
Lumin T2 / D2 / M1 / U1 (MINI): Use a pair of TP-Link MC210CS
Lumin S1 / A1 / T1 / D1 : Use a pair of TP-Link MC110CS (Note: old hardware revisions of MC210CS is not compatible)
Between the pair of FMC you need a single mode SC-SC duplex fiber (note: SC-SC is for a pair of FMC, not for SFP):
3m SC-SC duplex 9/125um Corning ClearCurve single mode bend insensitive fiber... | eBay
The Lumin-side FMC needs to be driven by a LPS, an inexpensive one is:
https://www.jameco.com/webapp/wcs/st...gDrillDownView
For recent Lumin models with 1000Mbps Ethernet ports (i.e. not Lumin S1 / A1 / T1 / D1), you may also consider using a Cisco unmanaged SFP switch to replace the original switch, with matching SFP module for the Lumin-side FMC. Note that SFP module uses LC connector instead of SC connector.Peter Lie
LUMIN Firmware Lead
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April 22, 2021, 09:46 PM #3
Re: Fiber optic Vs Cat type Ethernet cable
Depends on the nature of the device at the end. If you have an EtherREGEN at the "destination" end, then, it won't be an issue as its designed to mitigate the problems of longer runs of copper Ethernet into audio devices, e.g. network bridges or streamers.
If it isn't an EtherREGEN, then, very likely, Yes, you would hear an improvement. The optical cable will remove the effect of RMI and EF and high-source leakage impedance current that copper Ethernet is susceptible to.
If you use an FMC, the most important thing is not to use an FMC with a switch-mode power supply for the FMC at the destination end where you'd be converting back into copper Ethernet, as this will add high-source leakage impedance current back into the of the copper Ethernet going is going into the Ethernet receiver of the destination networked device.
Good clocks, really help, too, so if you don't need a switch at the destination end, minimally you should use a Sonore OpticalModule (OM) as your FMC at the destination end. Better results will be obtained by using OMs at both the source end and the destination ends because the Crystek CCHD-575 clocks in OMs are significantly better than the super el cheapo clocks in generic or consumer FMCs e.g. tp-link, etc (note: these are the exact same clocks in the EtherREGEN because both were designed by the same Ethernet EE, John Swenson). The "cascade" and stack-up of phase noise and jitter from the crap clocks in generic devices e.g. NUCs, computers, routers and generic switches in the network chain is quite audible.
One of the advantages of optical for longer runs is that also that it's easier to route than copper Ethernet, which is why I use it.
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April 22, 2021, 10:03 PM #4
Re: Fiber optic Vs Cat type Ethernet cable
For the use of EtherREGEN with Lumin, the recommended usage is:
Lumin X1 / T2 / D2 / M1 / U1 (MINI): Switch - side B EtherREGEN side A - unshielded CAT-6 - Lumin
Lumin S1 / A1 / T1 / D1: Switch - side A EtherREGEN side B - unshielded CAT-6 - LuminPeter Lie
LUMIN Firmware Lead
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April 22, 2021, 10:05 PM #5
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AudioShark forum is a leading forum site for High End Audio Discussion, Stereo System Discussion, Home Theater System Discussion, Best Home Stereo System Discussion, Home Theater Installation Discussion etc.
The AudioShark forum was created for sharing the passion of high-end Audio. We have Audiophiles from all over the world participating and sharing their knowledge. From novice to experts, you will find a friendly environment for discussing about High End Audio, Stereo System, Home Theater System, Home Stereo System, Home Theater Installation, Amplifiers, Speakers, Subwoofers, Integrated System, Acoustic treatments & Digital Room Corrections and many more.
At AudioShark, we also have incorporated an exciting Marketplace where members can peruse terrific buys on used gear, as well as meet dealers and discuss the purchase of new gear.
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Industry Participation Disclosure : The owner and administrator of Audioshark is the owner of Suncoast Audio LLC in Sarasota Florida. Suncoast Audio has a full brick and mortar presence in Sarasota with several great show rooms with many world class brands. More information can be found at http://www.suncoastaudio.com
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