supply of high availability single section digital axle counters (hassdac) with dual sensor system as per rdso/spn/177/2012 version 3 or latest. this includes the supply of high frequency web mounting type tx coil/rx coil, vr/pr box duly wired, vital relays, pr relays, clamp with deflector plates & hardware. dual display reset box with auto resetting facility, surge voltage protection devices and filter card to be mounted on din rail etc as per oem for complete intallation & testing & commissioning of (hassdac) system note; one set of hassdac system will include equipment required to monitor one up line or one dn line of a full block section between two stations. inspection rdsohigh availability single section digital axle counters (hassdac) with dual sensor system as per rdso/spn/177/2012 version 3 or latest. this includes the supply of high frequency web mounting type tx coil/rx coil, vr/pr box duly wired, vital relays, pr relays, clamp with deflector plates & hardware. dual display reset box with auto resetting facility, surge voltage protection devices and filter card to be mounted on din rail etc as per oem for complete intallation & testing & commissioning of (hassdac) system note; one set of hassdac system will include equipment required to monitor one up line or one dn line of a full block section between two stations. inspection rdso,high availability single section digital axle counters (hassdac) with dual sensor system as per rdso/spn/177/2012 version 3 or latest. this includes the supply of high frequency web mounting type tx coil/rx coil, vr/pr box duly wired, vital relays, pr relays, clamp with deflector plates & hardware. dual display reset box with auto resetting facility, surge voltage protection devices and filter card to be mounte d on din rail etc as per oem for complete intallation & testing & commissioning of (hassdac) system note; one set of hassdac system will include equipment required to monitor one up line or one dn line of a full block se