Finisar SFP+ Modules for Audio Grade Network Switch (Group Buy for Audiophilestyle.com)

[MarkusBarkus]

...just happened to see the post/not following closely, so excuse me if covered already. Do you have the same wavelength spec for the transceivers and the cable? 

[MarkusBarkus]

...yeah, I saw your label pics last night and searched, but those IDs didn't come up with product pages, so I couldn't help. 
 

I switched back to copper about six months ago, so minute details not fresh, but you will see wavelengths such as: 850nm, 1310nm or 1550nm. Both devices and the cable should share the same wavelength. 
 

If you can get to those product spec pages, you should find that info. Optical works great and solves some problems, but you do need to sort out a few basic details which are easy to miss. I suspect some easy misstep like this is at the heart of the issue. Cheers...

 

[MarkusBarkus]

...those cables specs are often measured in km, so I think you're a-ok at the lengths you're working with. Why buy twice? Just don't coil it in a tight-tight loop.

[MarkusBarkus]

...I have had a few lengths loosely coiled with no issues. Maybe a 1 meter patch cable actually connecting switches 10" apart, and a 10 meter cable for connecting across a few feet. This stuff is so un-like copper you have to change your thinking some times. Good Luck.