supply of supply & transportation of ufsbi etc.supply & transportation of ufsbi etc.,supply & transportation of universal fail safe block interface(ufsbi) equipment suitable to w ork signalling system between two stations (double line) on ofc or quad cable with bpac, including requi red relay as per oems design for the system commissioning. this includes supply of automatic media chan ge over along with additional modem as per manufacturers specification for ufsbi make webfi, rdso spec . no:irs:s:105/2012 (ver.0). and drg. no. rdso/s/32017 or latest amendment up to date of tender opening . [ warranty period: 30 months after the date of delivery ] ]