I must be missing something here, in the dual 220/330 networks how could you messure 110ohms? surley buss from one pin you will get 330 and from the other 220?

I'm also sure I have pulled packs from drives that are 110 ohm bussed packs. But i'll go and double cheack that quickley..... Edit: just cheacked one and it was a simple 110 ohm bussed pack, my guess is that the drive it is from is using active termination and there is a 2.85v regulator connected to them