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About Me

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  1. I recently built a NUC into an Akasa case as Roon networking bridge /endpoint with great results I have expanded the project to do a little more tinkering. I briefly played with WiFi, and I am pretty sure that the WiFi was messing with my system. The NUC I am using has an M.2 "e" slot for PCIe networking. There is an M.2 network card that drives an SFP. I am considering putting this in my NUC. https://www.newegg.com/Product/Product.aspx?Item=N82E16833453141&Description=M.2 SFP &cm_re=M.2_SFP-_-33-453-141-_-Product If you have a spare PCIe slot in your server, you can put a PCIe SFP card in the server. https://www.newegg.com/Product/Product.aspx?Item=N82E16833114123&ignorebbr=1 With these two network "cards" we can now test direct fiber between the server and the endpoint. This idea is going through my head while I am testing the TLS modified network switch. I have a PLAN! My current server is a Sonic Transporter i7 DSP that is set up for network bridging. I have a run of bog-standard CAT6 from the basement computer shelf to the system in the Living Room with the NUC. My TLS switch hooked up to an LPS-1.2 in the rack with the stereo. To start testing this idea I ordered some fiber gear from FS.COM as follows. (Ignore the switch for this part of my project) 8-Port Gigabit PoE+ Managed Switch with 2 SFP, 150W ID #73457 US$ 160.00x1 US$ 160.00 1000BASE-BX BiDi SFP 1310nm-TX/1550nm-RX 10km DOM Transceiver Module for FS Switches ID #29892 US$ 9.00x2 US$ 18.00 1000BASE-BX BiDi SFP 1550nm-TX/1310nm-RX 10km DOM Transceiver Module for FS Switches ID #29893 US$ 12.00x2 US$ 24.00 Unmanaged 1x 10/100/1000Base-T RJ45 to 1x 1000Base-X SFP, Gigabit Ethernet Media Converter, AC 100V~240V ID #17237 US$ 31.00x2 US$ 62.00 1m (3ft) LC UPC to LC UPC Simplex OS2 Single Mode PVC (OFNR) 2.0mm Fiber Optic Patch Cable ID #40446 US$ 1.50x2 US$ 3.00 5m (16ft) LC UPC to LC UPC Simplex OS2 Single Mode PVC (OFNR) 2.0mm Fiber Optic Patch Cable ID #40436 US$ 1.90x2 US$ 3.80 15m (49ft) LC UPC to LC UPC Simplex OS2 Single Mode PVC (OFNR) 2.0mm Fiber Optic Patch Cable ID #40441 US$ 3.00x2 US$ 6.00 The first test configuration was system validation placing the FMC devices between the home network and the server using a short fiber cable. Everything operated as expected for four hours while I was working. Plug and Play! Note that the SFP system I am using has a Single Mode single fiber and the SFP's are in pairs transmitting on 1310 or 1550. There is now a 15M fiber cable between the endpoints. I powered the server-side FMC with one rail of the HDPLEX 200 supply. The second FMC is next to the TLS switch. I only have one LPS up there, so the FMC is on the provided SMPS. Here is the test plan outline. *** I like to work backward from what I think will be the best.*** With a little more run-in time on the TLS switch I will listen between the fiber network and Ethernet network with the TLS switch as the last hop before the NUC. Then I will remove the switch and power the FMC with the LPS 1.2 to see how that sounds. Finally drop back to ethernet only. ------- After all that I will decide about trying the direct fiber to the NUC. I am considering building a fanless Xeon server that will have one or two SFP ports to isolate the server from the rest of the network without additional switching or wireless. As a final note the FMC devices are network switch gear and I am sure that they introduce some sort of noise. Much to consider here.
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