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Wiring a Three Deck Layout in N-scale

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  • Member since
    November 2006
  • From: Victoria, BC, Canada
  • 112 posts
Wiring a Three Deck Layout in N-scale
Posted by Dustin on Tuesday, February 27, 2007 10:45 PM

 

I am currently planning a 3 deck layout that is point to point with a lift-out bridge on the lower  staging level to allow for restaging and continuous operation. The linear run for a buss would be about 38' per deck.

My question is, how would it be best to wire for DCC?

1.) Should I have a buss for each deck that is in turn connected to the main power supply individually? 

2.) Can each buss be wired as a loop? By this I mean as the wire comes all the way around back to where it started can it then be soldered to its origin and form a continuous loop with the main power supply teed off of it? 

3.) What gauge of wire would be best for the buss and feeders to reduce voltage drop?

 

I plan on only having two operators at one time with a maximum of 4-6 engines under load at any one time.

 

Any input would be helpful!! 

Dustin CN- Par for the course!
  • Member since
    July 2006
  • From: Vail, AZ
  • 1,943 posts
Posted by Vail and Southwestern RR on Tuesday, February 27, 2007 11:19 PM
 Dustin wrote:

 

I am currently planning a 3 deck layout that is point to point with a lift-out bridge on the lower  staging level to allow for restaging and continuous operation. The linear run for a buss would be about 38' per deck.

My question is, how would it be best to wire for DCC?

1.) Should I have a buss for each deck that is in turn connected to the main power supply individually? 

I'd look at the layout and see what method would give the shorests bus.  I'd think about zigzagging, although three busses might make for easier debugging.

2.) Can each buss be wired as a loop? By this I mean as the wire comes all the way around back to where it started can it then be soldered to its origin and form a continuous loop with the main power supply teed off of it? 

The best practice suggests not, for all practical purposes it can be. 

3.) What gauge of wire would be best for the buss and feeders to reduce voltage drop?

I'd use 14 gauge for the bus, 20 or so for the feeders.

I plan on only having two operators at one time with a maximum of 4-6 engines under load at any one time.

 

Any input would be helpful!! 

Jeff But it's a dry heat!

  • Member since
    March 2005
  • From: New Brighton, MN
  • 4,393 posts
Posted by ARTHILL on Thursday, March 1, 2007 10:38 AM

I would wire the DCC into a junction block. I would then take a buss pair off for each level. I have been told that loops are bad, I don't know why, nor do I plan find out. Besides it is easier to not have a loop.

 

After you get the DCC up and running, I bet you will have four going at a time if you have the throttles.

If you think you have it right, your standards are too low. my photos http://s12.photobucket.com/albums/a235/ARTHILL/ Art
  • Member since
    November 2006
  • From: Victoria, BC, Canada
  • 112 posts
Posted by Dustin on Thursday, March 1, 2007 7:03 PM

 

Thanks Art,

What is a junction block?

Do you think I should split each deck such that it is divided... say... into halves such that the main busses from the power source will supply two lines each per deck so that the linear run of each buss is 20' instead of 40'.

 

          20'               20'                                                                    40'

  <------------||----------->                                       <---------------------------------||

                 This                                instead of                                 This

 

I hope my cryptic drawing makes sense! I'm interested in doing a wiring job that makes electrical sense and will make diagnosis really easy. I'm aiming to have the underside of my layout as spaghetti-bowl free as the top!

(I KNOW I'll run more engines than statedCool [8D])

Thanks again, 

 

                    

Dustin CN- Par for the course!
  • Member since
    March 2005
  • From: New Brighton, MN
  • 4,393 posts
Posted by ARTHILL on Thursday, March 1, 2007 9:39 PM

Block of plastic with a series of scews that allows easy connections. I get them at an electronics surplus store. The black strips at each edge. These have a solder joint and a row of screws. Some have two sets of screws.

 

If you think you have it right, your standards are too low. my photos http://s12.photobucket.com/albums/a235/ARTHILL/ Art

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