... TK-T12(1-1)A 1.Five party talkback for interphone 2.Emergency lighting ThyssenKrupp Elevator Interphone,Five Party Talkback TK-T12(1-1)A Details Products ... Description:Technical parameters: 1.Various Type: TK-T12(1-1)A, TK-T12(1-1)B1, TK-EP220-12, TK-T12(1-1)2A, TK-T12(1-1 ... )49N, TK-T12(1-1)B2.Input voltage ...