ThyssenKrupp Elevator Interphone,Five Party Talkback TK-T12(1-1)A 1.Five party talkback for ... .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: ...