supply of lightning protection board (zag2z), relay output module, micro processor unit and etc spare parts for s&tlightning protection board (zag2z), relay output module, micro processor unit and etc spare parts for s&t,wheel sensor zk24-2 with 10 mtr cable & cable protection tube, part no. ap215595 as per rdso specification no. rdso/spn/176/2013 ver.-3 & manufacturerss spec. or latest suitable with existing installations of msdac m/s.sigma rail systems pvt. ltd make and model-bo23 ver.3.2, in chennai division [ warranty period: 30 months after the date of delivery ] , power supply protection module (zanap), part no. ap215625 as per rdso specification no. rdso/spn/176/2013 ver.-3 & manufacturers spec. or latest suitable with existing installations of msdac m/s.sigma rail systems pvt. ltd make and model-bo23 ver.3.2, in chennai division [ warranty period: 30 months after the date of delivery ] , input amplifier module (up), part no. ap215629 as per rdso specification no. rdso/spn/176/2013 ver.-3 & manufacturers spec. or latest suitable with existing installations of msdac m/s.sigma rail systems pvt. ltd make and model-bo23 ver.3.2, in chennai division, [ warranty period: 30 months after the date of delivery ] , relay output module (re), part no. ap215613 as per rdso specification no. rdso/spn/176/2013 ver.-3 & manufacturers spec. or latest suitable with existing installations of msdac m/s.sigma rail systems pvt. ltd make and model-bo23 ver.3.2, in chennai division [ warranty period: 30 months after the date of delivery ] , micro processor unit, part no. ap215623 as per rdso specification no. rdso/spn/176/2013 ver.-3 & manufacturers spec. or latest suitable with existing installations of msdac m/s.sigma rail systems pvt. ltd make and model-bo23 ver.3.2, in chennai division [ warranty period: 30 months after the date of delivery ] , lightning protection board (zag2z), part no. ap215633 as per rdso specification no. rdso/spn/176/2013 ver.-3 & manufacturers spec. or lat