Our new ticketing site is now live! Using either this or the original site (both powered by TrainSplit) helps support the running of the forum with every ticket purchase! Find out more and ask any questions/give us feedback in this thread!
It releases the cab door (it’s only present on Metcam Networkers).
If it’s left in the down position, the door will look closed, but interlock cannot be obtained, invariably when the unit is part of a 10 car formation being driven from the far end, hence its nickname the F red handle (you can guess the expletive).