TTSS4T Sensor Signal (Theatre Indicator) 3 Aspect Distant MC-Active The units have a maximum

The units have a maximum speed of 100 mph (161 km/h)

The Siemens "Desiro UK" family also includes units of Classes 185

Eight more were taken out of traffic in 1961

in the National Railway Museum

TTSS4T Sensor Signal (Theatre Indicator) 3 Aspect Distant MC-Active The units have a maximumWith the use of the Sensor Signal developed by Train Tech you can easily add automatic signalling into your layout in seconds. The signals work by detecting a locomotive, or full train passing by it using a very small infrared sensor built in to the signal base. As soon as the locomotive has passed the sensor the signal changes to yellow and will stay yellow for about seven seconds to let the train clear the block. It then reverts back to green. If