Why does the ArcPro have two 15v inputs?

[John-368826]

New to the forum and Scalextric (after an absence of 50 years).

Noob question: I have just purchased an ArcPro powerbase. I was wondering why it has two 15v inputs when the box transformer only has one?

Thanks for any reply and sorry if this has been asked many times before.

Glad to be part of this community.

Regards

Mr A

[Andy P.]

When a track layout exceeds 10 meters (33 feet) or when you use more than 3-4 cars at a time (or both) you need more power.

The second input is for a second power unit.

Putting two jacks on one power unit would increase the cost of one unit.

My guess is they wanted to keep initial cost down.

The added benefit is if one of the power units breaks you have at least one and the power should be delivered a little more smoothly.

[John-368826]

Thank you so much for the reply.

I have two old style power supply units C922. Can I use one of these as as an additional input? Would I have to buy an additional connector cable as they only have a screw down positive and negative terminal?

Or am I completely off track? (Running a mix of classic and sport/digital track with both analogue and digital cars - in case it helps).

[Andy P.]

The electronics inside the ARC PRO are very sensitive especially to sine waves and other types of radiation so I would recommend getting the same type of power pack that came with the ARC PRO.