With momentary action switches for 2 four aspect signals, to activate the signals stop, proceed, proceed at reduced speed and stop for shunting movements. Ideally suitable in combination with our signal control module item-No. 5210 as well as the control module for daylight-exit signals item-No. 5223. In analogue mode controlling with control unit item-No. 5224 and 5229 when 4-aspects signals are connected. More panels are aligned. Up to 2 A.