supply of supply installation testing & commissioning of dual redundant arrangement of ufsbi electronicssupply installation testing & commissioning of dual redundant arrangement of ufsbi electronics,supply installation testing & commissioning of dual redundant arrangement of ufsbi electronics for exchange of vital relay state exchange pertaining to ib signalling, etc. the system comprises of following sub systems: a) supply installation testing & commissioning of electronics for ufsbi interface as per irs spec. no. irs:s-104/2012 ver. 0 (latest amendment). inspection by rdso. b) supply installation testing & commissioning of modem for ufsbi (for use of secondary media ofc / quad) railway shall define secondary media before placing of order. inspection by sse-inchage. c) supply installation testing & commissioning of automatic media changeover of modem working on redundant channels for data transmission on ofc/quad. . d) supply installation testing & commissioning of pre 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 sheet fitted on front door and metal back door, with double lock and bottom cable entry facility. b132 note: necessary arrangement / terminations must be provided for display of all signal aspects, tracks, ofc media and ufsbi system (present in the entire block section), at the end station / divisional control on ofc media. one rack of ufsbi having one main and one standby unit (2 unit of ufsbi electronic) [ warranty period: 30 months after the date of delivery ]