supply of supply, installation, wiring, testing & commissioning of dual redundant arrangement of ufsbi.supply, installation, wiring, testing & commissioning of dual redundant arrangement of ufsbi.,supply, installation, wiring, testing & commissioning of dual redundant arrangement o f ufsbi electronics for exchange of vital relay state information between two different signalling install ations pertaining to abs / ib signalling application working on ofc/quad media in set and consisting of following sub systems: (a) electronics for ufsbi interface in redundancy as per irs spec. no. irs:s-104 /2012 ver. 0 (latest amendment). qty: 2 nos.; (b) modem for ufsbi (for use of secondary media ofc / quad). qty: 2 nos.; (c) automatic media changeover of modem working on redundant channels for dat a transmission on ofc/quad. qty: 2 nos.; d) pre wired 42 -u floor mounting ms cabinet suited to fit t wo sets of ufsbi electronics with siemens grey/smoke grey powder coating (rust proof and long life), tinted 3-4 mm thick tinted acrylic/ poly carbonate/ glass sheet fitted on front door and metal back doo r, with double lock and bottom cable entry facility. qty: one no. item (a) shall be inspected by rdso a nd item (b), (c) & (d) by consignee along with oem test report. note: 1pair shall consist of 2 sets. of a bove mentioned items. [ warranty period: 30 months after the date of delivery ] ]