supply of supply, installation, testing & commissioning of block proving by digital axle counter using ufsbi spec.no.irs:s-105 / 2012 ( ver.0 ) supply, installation, testing & commissioning of block proving by digital axle counter using ufsbi spec.no.irs:s-105 / 2012 ( ver.0 ) , supply, installation, testing & commissioning of block proving by digital axle counter using ufsbi for single line operation as per irs specification no. irs: s-105 / 2012 ( ver.0 ) or latest amendment. this consist of ( 1 ) ufsbi and block panel for single line operation. ( 2 ) modem compitable with ufsbi system. ( for secondary / backup media ) ( 3 ) automatic media changeover of modems working on redundant channels for data transmission on ofc / quad for ufsbi. universal fail safe block interface ( ufsbi ) & block panel for single line operation as per detail below; i ) universal fail-safe block interface ( ufsbi ) as per rdso spcn. no.rdso / spn / 147 / 2005 or latest amendment ii ) sm panel rdso drg. no. rdso / s / 32019 ( tentative ) . iii ) relay rack with due locking and sealing arrangement as per rdso drg. no.rdso / s / 32020 including relays for each relays rack ( qn1-22nos., qna1-06 nos., ql1-02 nos. & timer-1 no. ) qty-02 nos. information by purchaser ( as per para 15.0 of irs spn no.irs:s-105 / 2012 ver.0 ) 15.1 requirement- for single line block 15.2 communication media from station to station - ofc & quad both 15.3 disatnace between block panel & relay rack- 25to 30 mtrs & type of cable between them-6 quad cable 15.4 any other information , as deemed fit - nil sse / re / sig / lko ( anil uttar pradesh 4.00 pair