Not sure there are any on the IOW. Not got the 483 but if I recall the 484 has no AWS etc. as not fitted to the infrastructure on the Island (I may be wrong).
The real units had a 'dead man's handle' and tripcocks, just as they did during their time on the London Underground. No AWS, DSD etc.
You should consider getting one for the Xbox, it makes life very much easier and as a plus point 99% of key bindings work for consoles too......
The class 483 doesn't have any safety systems apart from the dead man's handle like the 1938 stock dlc the class 484 has AWS TPWS and dead DSD the key board short cuts dont fully turn them on, they are on the right side of the cab.