Tenders for Supply of Q-Series Led Ecr Universal Type I.E.Qecx-61, 4F/4B Complete With Plug Boardbase Plate, Connectors, Retaining Clips Etc And Conforming To Brs:941A Sts/E/Relays/Ac Lit Led Signal/09-2002, Amdt.-1 Or Latest And Rdso Spec.No.Irs:S-34, S-23 Or Latest, As Applicable.The Interlocking Code For This Unit Shall Be Abdhk.