2N® Sentrio and LiftIP 2.0 Audio Unit (921650E) Technical Specifications Brand: 2N® Sentrio and LiftIP 2.0 Series Part Number: 921650E Function: Audio unit for emergency communication in elevator cabins, supporting VoIP-based calls with full-duplex audio Installation: Designed for flush or surface mounting on elevator cabin panels; includes integrated microphone, speaker, and emergency button Compatibility: Compatible with 2N® Sentrio and LiftIP 2.0 systems; supports integration with 2N® Elevator Center for remote monitoring and configuration Control: Initiates emergency calls via SIP-based VoIP technology; supports G.711, G.722, and G.729 audio codecs for clear communication Integration: Connects to 2N® LiftIP 2.0 Voice Alarm Station Switch for extended functionality; supports PoE for power and network connectivity; can link with IP cameras for video feed integration