Skip to main content

-Wondering when you guys wire up up a small layout for DCS control if you solder every rail joint together?

-My first impressions of DCS, at least for 2 rail, is that it is very sensitive...

Here's the story;

I have 3 loops going around the walls of a 10 X 15 space in a 10 X 20 room. Two loops are Atlas 2 rail track and one loop is Atlas 3 rail track. The layout was wired using the STAR wiring system and blocks instead of the non DCS method of Blocks/Common bus, as recommended, but I am still getting a lot of random issues with the locomotive (PS2) running on the 2 rail track. Loss of DCS signal apparently. Every once in a while when requesting bell, whistle or headlights on/off the locomotive doesn't respond. It can run slowly around both loops, but looses the ability of functions as described at times.

The 3 rail loop where a PS3 locomotive runs seems to have none of those issues.

I am running this layout currently with a DCS Exploreer Wi-Fi system.

Any thoughts helpful.

Thanks guys,

Todd

Original Post

Replies sorted oldest to newest

From what I can tell the problem was in the Atlas scale 2 rail track. I have no issues with the 3 rail Atlas, but the scale 2 rail is so much smaller, I figured the problem was in the connectors. I went ahead and soldered all the joints on the 2 rail, now everything is running fine.

I have always wondered about STAR wiring myself, but I had it explained to me and it makes sense given the MTH 2 way communication. I have heard of guys using common bus wiring with no problems, but I have also heard of some having major issues, that's why I went ahead and did it by the book.

On to the trains!

My layout was built before DCS, planned to have many conventional locos running.  This requires many toggle-switched blocks, all switches on a control panel.  Star wiring not feasible for such usage.  I plopped tius between transformers and panels, and have been running that way for nigh onto 20 years.

 I was told to solder my 2 rail Atlas track years ago. I soldered half of the layout. The other half I didn't. It ran fine for a long time. I started having issues and finally soldered the whole layout.

 If you don't solder it, the track connections must be tight. The track connections are the weak spot. The rail is fine for carrying power. If the power is good, the DCS signal will be good. A lot of people think it's a signal issue when it's usually a power dip issue. Run in conventional and check for power dips around the layout.

Joe, I'm curious.  I haven't looked at Atlas 2-rail track.  I do know if steel or brass, and does it have enough cross-section to equate to 14 or 16 gauge copper wire?

I've never looked into that. I just know how it performs for me. It's advertised as solid nickle silver, right? I would suggest that Atlas 2 rail performs similar to 14 or 16 gauge wire as a guess. I use 14 gauge as my main feed wires. The signal doesn't deteriorate too much from the connection point to the ends of the blocks. The power seems to flow well too. Again, I believe it's the joints that help create more issues. I tried to use all 40" flew sections as much as possible when I built my mainlines. Power does dip near the ends of the blocks (75'? +) . So maybe the rails act more like #16?

I wonder if using section track makes more of a difference?

Last edited by Engineer-Joe

Add Reply

Post
The DCS Forum is sponsored by

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
Link copied to your clipboard.
×
×