The BB 27035, electric brake in action, arrives in Vallorbe with pantograph down, because she's under SBB catenary with 15 kV 16,7 Hz voltage.
The train come from Gevrey and go to Italia.
When the 27035 will be cut of the train, a SBB switching locomotive will push it at the depot where she find again catenary with french voltage, 25 kV 50 Hz.