Help with design

[wpslo]

 

Stuck this here and hope it helps .

 

Monday, 2021-08-02  https://dccwiki.com/Wiring_Crossings

 

_Peco_SL-E194 .  Code 75 Electrofrog Large Crossing

_Hornby_R8238_Reverse_Loop_Module_

See this diagram for an explanation of the nomenclature :

              https://dccwiki.com/Wiring_Crossings

 

_Diamond_Crossing_Wiring_ using a _Reverse_Loop_Module_ [ _RLM_ ] .

 

 

I hope this will help with the problem .

It is a report of my solution to the problem using a Peco_SL-E194.

 

Picture the crossing with the long axis horizontal .

Working from left to right I will refer to the four wires fitted to the crossing as:

       A & B [ left pair ] and X & Y [ right pair ] .  Think battleship gun turrets .

 

 

What I did:

 

1. Fit insulated fishplates to the End_Frogs ;  a total of four .

2. Fit conducting fishplates to the Frog_Arms ;  a total of four .

3. Connect B and X to the Track Bus .  This means that that the four crossing rails [ the short rails

     immediately outside the diamond in the middle ] will be permanently live .   

4. Connect A and Y to the two Track Outputs of the RLM, i.e. Power Out .

5. Connect the Track Bus to the two Track Inputs of the RLM, i.e.  Power In .

6. I am not sure if it matters which way round either of these pairs are installed as long

    as the inputs and outputs are not mixed .

    However it may be necessary to pair the End_Frog wire with its associated Frog_Arm .    

 

 

Note:

Only one RLM is required so this is probably the cheapest solution to the problem .