supply of supply, installation, wiring, testing & commissioning of dual redundant arrangement of ufsbi etc.supply, installation, wiring, testing & commissioning of dual redundant arrangement of ufsbi etc.,supply, installation, wiring, testing & commissioning of dual redundant arrangement of ufs bi electronics for exchange of vital relay state information between two different signalling installations per taining to abs / ib signalling application working on ofc media in set and consisting of following sub syste ms: (a) electronics for ufsbi interface in redundancy as per irs spec. no. irs:s-104/2012 ver. 0. (with lates t amendment up to date of tender opening) qty: 02 nos.; (b) modem for ufsbi (for use of secondary media ofc) . qty: 02 nos.; (c) automatic media changeover of modem working on redundant channels for data tr ansmission on ofc. qty: 02 nos.; (d) pre wired 36-u floor mounting ms cabinet suited to fit two sets of uf sbi electronics with siemens grey/smoke grey powder coating (rust proof and long life), tinted 3-4 mm thi ck tinted acrylic/ polycarbonate/ glass sheet fitted on front door and metal back door, with double lock and bottom cable entry facility. qty: 01 no. [ warranty period: 30 months after the date of delivery ] ]