dcc wiring

[trebor]

Hi every one i hope someome out there can help with my question, which is, i'm currently running an indoor twin track oval layout in dcc but have just moved house and now have the opportunity to extend it outdoors. what i would like to do is have a single spur coming off one of the twin tracks which then heads outdoors round a loop then back in, ie imagine a lollipop type of shape lol. so here's the question how do a wire it up without shorting out keep it simple please my knowledge of electrics is limited, thanks Bob

[Riddles]

Reverse loops are so much easier to operate with DCC than ordinary DC. You do not say which DCC system you are using but most systems have Reverse Loop Modules available and they "should" be compatible. Having said that it would probably be simpler to stick with one from the manufacturer of your system. Hornby's is R8238 at a RRP of £37.99 but you need not pay that. Have a look at Digitrains http://www.digitrains.co.uk/ecommerce/dcc-accessories/auto-reversers/  or DCC Supplies http://www.dccsupplies.com/shop/index.php?cPath=459_458

The cheaper modules will use relays to operate the switching and the more expensive will be solid state and potentially more reliable.

You will need to completely isolate a section of track within the loop (two insulated railjoiners at both ends) and connect this to the two output terminals of the module. Connect the other two terminals to the main track section. The isolated section should be long enough to contain all power pickups of each train. Remember that a DMU may have pickups at each end so the isolated section will need to be long enough to completely contain it. If you only use loco hauled trains, the section could be shorter (unless you have illuminated coaches taking power from the rails).

I look forward to seeing pictures!

Dave W

[trebor]

Brilliant thanks Dave do you happen to know if auto point motors are available so the train triggers the point just before it crosses it

[Riddles]

I'm sure it is possible but I don't think any of the more well known manufacturers have an off the shelf option available at present, although Hornby have promised auto-detection at some time in the future. Heathcote Electronics http://www.heathcote-electronics.co.uk/" onclick="window.open(this.href);return false; probably have something which could be used.

Hornby's Railmaster might be programmable to do it but that would mean using a computer or laptop and would be more complicated than you would wish.

Dave W