supply of supply installation testing & commissioning of dual redundant arrangement of ufsbisupply installation testing & commissioning of dual redundant arrangement of ufsbi,supply installation testing & commissioning of dual redundant arrangement of ufsbi electronic s for exchange of vital relay state exchange pertaining to ib signalling, etc. the system comprises of following su b systems: a) electronics for ufsbi interface as per irs spec. no. irs:s-104/2012 ver. 0 (latest amendment). b ) modem for ufsbi (for use of secondary media ofc / quad) railway shall define secondary media before plac ing of order. c) automatic media changeover of modem working on redundant channels for data transmission on ofc/quad. d) wired 36-u floor mounting ms cabinet suited to fit 2 sets of ufsbi electronics with siemens grey/ smoke grey powder coating (rust proof and long life), tinted 3-4 mm thick tinted acrylic/ polycarbonate/ glass s heet fitted on front door and metal back door, with double lock and bottom cable entry facility. note: necessary ar rangement / terminations must be provided for display of all signal aspects, tracks, ofc media and ufsbi syst em (present in the entire block section), at the end station / divisional control on ofc media. one rack of ufsb i having one main and one standby unit (2 unit of ufsbi electronic) make: daltron or similar [ warranty period: 30 months after the date of delivery ] ]