Class 158 Door Chimes

[E_Reeves]

Hi everyone,

Having not travelled on a 158 in ages, I was rather pleased to have a ride on an EMT one yesterday into Ely.

However, I noticed something I'd never noticed before. As the train doors were closed for dispatch (and the guard's local door open) you get the normal hustle alarm, but when the doors had closed, the door unlock chime played on the carriage where the guard's local door was open straight after the hustle alarm.

Is this normal? I've definitely never heard it before...

Thanks

 

[pompeyfan]

It’s something to do with the key being taken off and put back on I think.