supply of digital voice announciation unit, pa driver units, horn and accessories of lc gate roadwarning equipment as per technical specification enclosed herewith . one set of supply comprising of :- 1)digital voice announciation unit:1 no. 2) pa driver unit: 2 nos. 3) horn & its accessories : 2 nos. todrg.no.cwm sk 15/12 alt-1, cwm sk 16/12 alt-1, cwm sk 17/12 alt-1 & cwm sk 18/12 alt-1. one set ofsample to be got approved from railways by the supplier before commencement of bulk supply. the warranty ofthe items supplied shall be 2 years from the date of supply or 1 year from the date of commissioning of the itemsin the fields which ever is earlier. inspection : consignee.