My understanding is that some of the DART fleet still have the function, but not all. I don't know which have the feature or not and CTC have no way of knowing which is which as they can't remotely determine a trains actual fleet number in real time, but the information is encoded in the radio
No railcar unit was ever fitted with this feature All units carry the exact same radio unit.
On WIFI equipped units they have in theory remote control over large parts of the non safety gear and get exact GPS location, again if its enabled.
This is a very serious issue, imagine we swap Bray for the Vale of Avoca, you are pretty stuck there, no idea where you are, no access and dodgy mobile coverage
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