I have 3 CW-80-s Will have a 4th soon. One of my 3 does not have the G Code, but I will probably dedicate that to my trolley or Superstreets.
Each loop is powered by it's own transformer.
If you have only one transformer and you have a loop with a siding, you create a separate block on the siding and control the power to that siding with a toggle switch. Turn the switch off and you can store a second engine and run the other on the loop.
Below shows 3 blocks on one transformer.
1. The main Loop
2. A Passing Siding
3. A Yard Siding
You can run two trains on here all day long. Park a train on the siding (green), turn off the toggle switch and run the other train on the loop. Park the train on the loop on the Passing Siding (blue), turn off the toggle switch, turn on the toggle switch for the green line and bring the train out of the yard onto the loop. You can add as many sidings and toggle switches as you want, you just have to tie into your main center rail feed. The idea is that you are interrupting the power to each siding with a toggle switch.
You can connect two loops on separate transformers and use the block section to separate the power districts, you just have to make sure you have the power phased correctly, if you have two CW-80s (G coded) the plugs already are phased. This way you can bring a train form an inner loop on a separate transformer out to a outer loop on a different transformer.
