(12 Oct 2018, 9:49 pm)S813 FVK wrote PVR was reduced by 1 when the 56 went from every 10 minutes to every 12.
6084 transferred with the intention of being a spare for the X9/X10 with having a tachograph, but was also used on the TENs to make up the PVR of those services.
Whats a tachograph