How to Isolate Data/Ground between WS2811 and MCU

How do you isolate the Data and GND between MCU and a WS2811 IC?

The W2811 is another system that I will be interfacing and require the two systems to be completely isolated from each other.

Thanks, David

require the two systems to be completely isolated from each other.

Why?

I think the data rate is too fast for an opto isolater.

The thinking being that if anything fails within our controller, the lighting system (which is difficult to access) would be safe.

There are some here:- http://uk.farnell.com/isolators?searchRef=SearchLookAhead However look at the maximum frequency and compare that with what you need.