2N® Lift8 Audio Unit – Fireman, PCB Version (918619E) Technical Specifications Brand: 2N® Part Number: 918619E Function: PCB audio unit designed for fireman communication, enabling priority voice calls during emergency evacuation in lift systems Installation: Designed for installation in elevator control panels or designated fireman access points; connects to 2N® Lift8 Central Unit via two-wire bus; includes integrated microphone and speaker Compatibility: Compatible with 2N® Lift8 systems; supports integration with 2N® Elevator Center for remote monitoring; complies with EN 81-28 and EN 81-72 standards for firefighter lifts Control: Initiates priority calls with a single button press, interrupting other communications in the same shaft; supports PCMU, PCMA, G.711, L16, G.722, and G.729 audio codecs for high-quality audio Integration: Powered via two-wire bus; configurable via 2N® Service Tool or web interface; supports communication with cabin and machine room units; designed for reliable operation in emergency scenarios