supply of supply of dual redundant arrangement.supply of dual redundant arrangement.,1. supply of dual redundant arrangement of ufsbi electronics for exchange of vital relay state inf ormation between two different signalling installations pertaining to abs /ib signalling application working on ofc /quad media in set and consisting of following subsystems a) electronics for ufsbi interface in redundancy as p er irs spec. no. irs:s- 104/2012 ver. 0 (latest amendment). qty: two nos.; b) modem for ufsbi (for use of se condary media ofc / quad). qty two nos.; c) automatic media changeover of modem working on redundant c hannels for data transmission on ofc/quad. qty: two nos.; d) pre wired 36-u floor mounting ms cabinet suite d to fit two 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 doub le lock and bottom cable entry facility. qty: one nos.; item (a) shall be inspected by rdso and item (b), (c) & (d ) by consignee along with oem test report. note: 1 pair shall consist of 2 sets of above mentioned items. inspe ction: rdso 2 pairs ( 4 nos.)for one ibs section 2- one pair of ufsbi will consist of 04 nos ofc (dark fibre) m odem, 04 nos quad cable modem , 04 nos automatic media changeover and any other equipment required for c omplete media redundancy. [ warranty period: 30 months after the date of delivery ] ] => limited