For 20 years now I have been powering my K-Line switches off of my MRC dual 270. Typically there are 4 to 7 "sets of track", some of which are powered by a ZW. I have always connected the grounds of the ZW and MRC right at the transformer level.
I'm wondering: I would like to do something different this years because my ZW and MRC will not be all that close to each other. Can I merely connect the grounds at the track level???????
I was a bit concerned for a couple of reasons:
1. On my Christmas layout this year, I will be using DCS on 2 tracks and conventional on 3 tracks. Will connecting the grounds interfere with my DCS signal???
2. Is there any issue with derailments on one track that would interfere with power to the other tracks???
Might seem silly as I personally think it will be fine, but better to ask.
As always, thanks - walt