[c-nsp] Galvanic isolation for Ethernet?

[Victor Sudakov]

Joel M Snyder wrote:
> 
> 
> On 8/18/14, 2:51 PM, cisco-nsp-request at puck.nether.net wrote:
> 
>  >Do you know any devices to provide galvanic isolation for twisted pair
>  >Ethernet?
> 
> 
> At Interop a few years back, Extreme switches in the infrastructure were 
> being blown up and we turned to APC isolation equipment.  They had a 
> nice little 1U unit that seemed to do the trick.
> 
> http://www.apc.com/products/family/index.cfm?id=145

This seems to be the one we are already using (however not a
rackmounted variant, but standalone devices like the white thingie on
the left of the picture) and they are not helping.

> 
> Obviously it would be better to figure out the problem---probably ground 
> loop-related---but this might buy you some time while you figure out 
> what the problem is and, more importantly, how to solve it (which can be 
> very difficult or even impossible in some buildings).
> 

-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
sip:sudakov at sibptus.tomsk.ru