Tender For universal printed circuit board (pcb) for bldc railway carriage fans confirming to rdso specification no. rdso/pe/spec/ tl/0021/2005 (rev-3) with amendment no.1 or latest. the pcb shall be confirming to clause 4.4 to 4.4.7 of rdso specification. only icf/rcf approved venders to quote for supply to this item. [ warranty period: 30 months after the date of delivery ]