Quote:
Originally Posted by Famester V1
Stephen, Christian & cj
Thanks for the advice.
I know how to make the connections, but I don't have experience in the details as why they work.
Do you have a direct link on where and which to purchase another set of SFP and optical cable to try out?
My Cisco switch is primary where it directs the incoming signal from my router to the wired ethernet throughout the house.
Then it goes to the EtherRegen and then to the Aurender N-200.
The optical connection between the Cisco and the EtherRegen is where I cannot get a signal to operate.
Also, if I do get the Lumin, The EtherRegen SFP port is on the "incoming" A side and not the "outgoing" B side or does that not apply?
How would the connection work going optically between the Cisco to the EtherRegen to the Lumin?
Thanks again!
And- I was looking into a different switch- like the Sotm
sNH-10G High-End Audio Switch Hub - with a clock, which?
Thoughts there?
Lumin X1 is on order...
and going to audition a Zyxel unmanaged switch to see what happens there, if my connection issue is due to my managed Cisco switch or not.
Fred
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Okay, a lot to cover here...
Fred, if I were to hazard a guess, based on my own experience, the reason you're having connectivity failure modes (a failure mode is anything that can go wrong) is due to the SFP optical transceiver (henceforth abbreviated simply as "SFP") you're using in your EtherREGEN. I had quite a few issues with the TP-Link SFPs I was originally using with my ER. Basically, if I just "breathed on it", it could disconnect. It became so problematical that I wrote to Alex at Uptone and he very kindly sent me a 10GTek SFP free of charge that worked fine. I used that until I got the Finisars I referenced above, which not only connect consistently, but sound better than the 10GTek SFP. So....it could be the StarTech SFP module you're using doesn't play nice with the SFP cage in ER.
My guess the reasons for this is that the dimensional tolerances of the SFP cage used by John in ER is "touchy" with respect to the exact SFP optical transceiver being used. It's also possible that the same connectivity failure mode could be due to the SFP optical transceiver/SFP cage
interaction on your Cisco switch. I kinda doubt it, given that I also consistently had the same type of connectivity issues with the TP-Link SFPs on my ER, but it's still a possibility.
So, Fred, my recommendation, if you still want to run optical (and given that you're getting a Lumin X1, I think you should), I would get the (Planet Tech) MGB-TLX SFPs I referenced in my first post on this thread:
https://www.audioaficionado.org/newr...eply&p=1072844
Now, if you do that, you could try a couple of set-ups:
1) Run optical straight from your Cisco's SFP cage to back the of the X1
2) Move your ER into the location where your "server room and Cisco switch" ls located" and connect a quality Ethernet cable from the Cisco switch to B-side of ER. Then run the 9/125 fiber out of ER's A-side into the SFP cage on the X1.
#2 is what I would think would be the best set-up because 1) ER has better and quieter RJ45 jacks than a consumer-grade Cisco switch would have and 2) ER has a much better internal clock than the Cisco switch.
Personally, I'm going to cordially disagree respect to copper Ethernet being "good enough", only because that's not been my experience. The reason for this is that 1) copper Ethernet can still pass high-source leakage impedance current from the Cisco switch to your X1 if you connect from the Cisco switch directly to your X1 via copper Ethernet. If however, you decide to run copper Ethernet from your server to the X1, I would recommend putting ER near the server and connect your ER to the Cisco switch on A-side (you could even connect via optical if you wanted, but with the SFPs I recommended), and run via copper Ethernet from ER's B-side from that to the Ethernet port on the X1. That way, the "moat" in ER will prevent the leakage current from passing from the generic Cisco switch getting to your X1.
I hope that makes sense, Fred. If not, feel free to give me a call and we can discuss.
Cheers.