supply & installation of multi section type digital axle counter equipment with 4 detection points,with 3 track section and one supervisory track section, suitable for working with ibs on double line sectioncompete in all respect to rdso specification no. rdso/spn/176/2013 ver.3 with latest amendments andmanufacturers spec, msdac ibs 4 dp 3 ts. which consists of following ;(a) evaluation computer ec4;56 sets,(b) installation material ec 4;56 sets,(c) prewired cabinets. including central evaluator(s), final trackclearance relay and reset relays for each track sections, reset boxes, lb boxes, detection points, mushroomhousing for track side device clam type electronics, deflector plates and all other accessories fully wired to theultimate capacity also this include following:- i) supply of msdac main equipment (for 4 nos ibh)redundancyshould be at every level with separate evaluator for up line and down line at ibh and station. extra multiplexermay be supplied for ibh.