supply of various signalling itemsvarious signalling items,relay drive card for central evaluator unit of multi section digital axle counter systems as per rdso specn. no. rdso/spn/176/2013 or latest. [ warranty period: 30 months after the date of delivery ] ] , dual micro controller logic card for field unit of multi section digital axle counter systems as per rdso specn. no. rdso/spn/176/2013 or late st. [ warranty period: 30 months after the date of delivery ] ] , modem card for field unit of multi section digital axle counter systems as per rdso specn. no. rdso/spn/176/2013 or latest. [ warranty per iod: 30 months after the date of delivery ] ] , event logger card for central evaluator of multi section digital axle counter systems as per rdso specn. no. rdso/spn/176/2013 or latest. [ warranty period: 30 months after the date of delivery ] ] , evaluator card (em08) for central evaluator unit of multi section digital axle counter systems as per rdso specn. no. rdso/spn/176/2013 or l atest. [ warranty period: 30 months after the date of delivery ] ] , high voltage dc-dc converter module dc_210 for converting 24v dc to 96v dc of multi section digital axle counter systems as per rdso spec n. no. rdso/spn/176/2013 or latest. [ warranty period: 30 months after the date of delivery ] ]