Iec 60571.pdf !new! -

The standard defines ambient temperature classes (ranging from T1cap T sub 1 Txcap T sub x

The next time you step onto a train and the doors close smoothly, the destination sign updates correctly, and the ride feels steady, spare a thought for the engineers and the silent guardian of rail safety: . Iec 60571.pdf

(with or without direct connection to the contact system). Train control, communication, and signaling systems . the destination sign updates correctly