Hi,
I know this is an old thread, almost 1 year now but I have just taken delivery of this board and have been a little confused.
I noticed all the grounds are connected together and thought that was a little strange to the point that it looks like it will not work and will cause damage if connected the way it first appears.
However, after reading this thread and the original one, am I to assume that I can connect a supply (+ve) to the POW pin and then take my load from each channel (1, 2, 3). NOT using any of the ground connections and then this board will function on the high side and monitor 3 independent loads but from a single supply.
If that is correct, then it is fine, I would run my loads off the same supply anyway.
Thanks
Martin