- from the battery through a step-up converter
- from the BPS input voltage after it is rectified and filtered.
Why is this an Upgrade?
It simplifies wiring by eliminating the need for primary and backup configurations. Two wiring diagrams on the applications page will soon be replaced by the diagram to the right.
A loco to be equipped with S-CAB radio control and battery power will be wired the same way, irrespective of whether the layout has complete, partial or no power supply to the track. Readers familiar with BPS may notice that this wiring is actually the original "primary connection". In other words, the backup connection diagram is unnecessary and will be eliminated.