In order to run the curved line of mountain area at high speed, E351 adopted the Pendolino mechanism.
However, there is a possibility that the pantograph may come off from catenary since the car to be greatly inclined.
To avoid that, the pedestal of pantograph is directly connected to the bogie under the Pendolino mechanism! And there are large hole through car body to be able to move the pedestal.
It is inspired from @creonphotography 's tookapic.com/photos/273737. Thanks!