Using shift-enter opens and closes it, but I can't find it in the cab (this is the old Railfreight model from TVL, not the new DRS version)
Its not a fuse, search for the valve in the cab. (Also close all doors since there are some behind them)
Its out side of the loco next to the battery box, nose end driving desk side. Its a knife switch not a fuse.
Thought DTG didnt model the exernal switch, instead i used the isolation valve inside the cab which is modeled as i remember.
sorry was being daft this morning for some reason i thought you said BIS but i think you mean the AWS change end switch which is down the side of the power controller meridian is quite correct. the change end lever is to the right and the isolation lever is to the left.
'It isn't modeled' - is the answer I got from the community when I asked the same question on this forum a couple of years ago. But given how detailed the model is... I still haven't abandoned my quest. That's the lightning isolation switch The two interactables in the fuse cupboard - And yes, there is a control cutout switch and the AWS next to the control stand but still no luck with the DSD fuse/switch/lever
Take a look at this rather ancient EE handbook on the 20: Locomotive Repair Books, Record Cards, Manuals and Driver's Handbooks. There are two isolating cocks mentioned with locations shown but whether the locations changed as the locos were overhauled and fitted with train air brakes I don't know. I've not explored the TSW loco to see if they are modelled.
There isn't one, its tethered to AWS being active. Its a simplification as the isolating handle isn't modelled which is outside under the cab I think.