Power Supply On/Off Switch(S01) Of Switch Board Cabinet Suitable For Lhb-Ac Coaches Conforming To Rdso Specification No. Rdso/Pe/Spec/Ac/ 0184- 2015 (Rev.1). Make: As Mentioned On Bom Sn-6, Page No.25 Of Above Mentioned Rdso Spec. No. Note: Material Should Be Supplied By Rdso?S Approved Oem (As Mentioned In Bom Of Rdso?S Specification) Or Their Authorised Dealers Only For The Originality Of The Supply Item.