supply of supply and installation of different types of block proving by axle counter (bpac) using ufsbi item.supply and installation of different types of block proving by axle counter (bpac) using ufsbi item.,supply of automatic media changeover of modems working on redundant channels for data trans mission on ofc/quad compatible with ufsbi system. [ warranty period: 30 months after the date of delivery ] ] , supply & transportation of block proving by axle counter (bpac) using block panel and ufsbi f or single line operation complete with all accessories as per specification no. irs:s-105/2012 (ver.0) or latest. e ach set consisting of following: (i) universal fail safe block interface ufsbi) with complete accessories as per s pecification no. irs:s-104/2012 (ver.0) or latest. (ii) block panel as per rdso/s/32019 for single line. (iii) relay rack with locking and sealing arrangement duly wired as per drawing no. rdso:s:32020 including all relays wiring and supply of all type of relays. (iv) block telephone with accessories as per specification no rdso/sp n/191/2005 or latest, with all type of lighting protection and in built automatic media change over with voice, e1 an d dark fibre port. [ warranty period: 30 months after the date of delivery ] ] , installation, testing and commissioning of block proving by axle counter (bpac) using block pa nel and ufsbi for single line operation complete with all accessories as per specification no. irs:s-105/2012 (v er.0) or latest. ] , supply of modem compatible with ufsbi system (for used with secondary media ofc/quad). [ w arranty period: 30 months after the date of delivery ] ] , block proving by axle counter (bpac) using ufsbi (for double line and single line) spec: irs:s105/2012(ver.0), drw: rdso/s/32017, rdso/s/32019, str: siq 0001ver. 2.0, clause no. 2.5.1 of gcc attached herewith may be referred to for full details. developmental order may be placed on firm as per clause no.2.5 of ser instructions to tenderers and ge