[Puma Cat]

Originally Posted by Famester V1

When I remodeled my listening room, my components are now 20 feet away from my Cisco switch. So I picked up a pair of
StarTech.com Cisco GLC-LH-SM Compatible SFP Module - 1000BASE-LX/LH - 1GE Gigabit Ethernet SFP - LC 20km - 1310nm - Cisco IE3400, IE3300, IE3200 (SFPGLCLHSMST)
and a
8 Meter Singlemode Duplex Fiber Optic Cable (9/125) - LC to LC
from Amazon
before my vacation and they don't work with either my EtherRegen or my Cisco SF 302-08P 10/100 POE Managed Switch. I went back to the Blue Jeans ethernet cable for the time being until I can spend time researching and contacting support. I think since it is a managed switch, I likely have to make some adjustments to the Cisco. But just guessing for now.

Hi Fred,
I think perhaps one or more of the components you've tried here may be incompatible, but I couldn't specifically tell you which one. Anecdotally, I think I remember someone posting that the Cisco SFPs can be problematical for these audio applications, but I don't have the specific reference at the moment; it may have been a comment by Emile Bok at WBF discussing SFPs he's tested for use with the Taiko Extreme Server.

Here are two specific set-ups that I can confirm will work, for you, though:

Tripp-Lite 62.5/125 Duplex Multi-mode LC/LC optical fiber with Finisar FTLF8519P3BNL SFP 850nM Multi-mode optical transceivers. These were the best-sounding SFPs that I found for the Tripp-Lite fiber. They always connected", as well, which I could not say for the TP-Link SFPs.

Corning 9/125 single-mode LC/LC fiber with Planet Tech MGB-TLX 1310 nM 20Km 1000Base-LX Single-mode LC/LC optical transceivers.

Hope this helps...