That is a very informative video but maybe I didn't explain my question properly. I am juicing the frogs using the switch machines terminals designed for that. This part of the setup is not covered in that video nor do the walthers cables work for this. The connection requires a female disconnect but it is narrow, not the typical .25 width we normally use. I found some 3/16 which will work but they don't fit correctly as they are still too wide. I think they require the 2.4 mm ones but am not sure. Thought I would ask before ordering 100 and not being the correct fit. ThanksHere is a video that shows the parts and how they go together.
How-to Library: Installing a Walthers Layout Control System Switch Machine | ModelRailroaderVideoPlus.com
In this video, Eric White shows how to install the Walthers Layout Control System switch machine on a DCC-equipped HO scale model railroad.mrr.trains.com
Here is a 5 pack of just the cables.
Well they sure could be soldered but they have a small hole like they are designed for a female disconnect.It looks like the frog connectors on the Walthers switch machines are intended to be soldered. Can't tell why size female disconnect will fit sorry.