supply of automatic smoke/fire detection systemautomatic smoke/fire detection system,charging unit for automatic smoke/fire detection system in lhb coaches-part no-jk-fsd-11 21 as per rdso spec. rdso/2008/cg-04 rev 5.0. make/brand: -jk exim only. [ warranty period: 30 mon ths after the date of delivery ] ] , power supply unit for automatic smoke/fire detection and suppression system, make: jk exim part no. jk-fsd-1132 only. [ warranty period: 30 months after the date of delivery ] ] , dc/dc convertor (110 v to 24 v dc) to part no. jk-fsd-1120 for automatic fire/smoke detect ion and alarm system in ac coaches of make: m/s. j k exim pvt. ltd- ambala city. make: j k exim only. [ warranty period: 30 months after the date of delivery ] ]