This is a 4 aspect signal used in Queensland. It is used extensively throughout the Brisbane suburban network. It is used to give advanced warning of stop aspects in advanced signal. This signal is for use inside tunnels. This ignal attaches to the right hand wall of the tunnel. This signal has a 2.2 metre offset from centre of track compared to 45335:104012 and 45335:10413 that have a 2.7 metre offset.