2N® Lift8 Audio Unit – Flush, Without Button (918618E) Technical Specifications Brand: 2N® Part Number: 918618E Function: Flush-mounted audio unit for emergency communication in elevator cabins, utilizing a two-wire bus for audio transmission Installation: Designed for flush mounting in elevator cabin panels using a compatible mounting box (e.g., 9155015); includes integrated microphone and speaker (1W, 16Ω, option to increase to 2.3W with 4Ω speaker); requires external button or switch for emergency call activation Compatibility: Compatible with 2N® Lift8 systems; supports up to 6 audio units per shaft via 2N® Lift8 Splitter; integrates with 2N® Elevator Center for remote monitoring; complies with EN 81-28 and EN 81-70 standards Control: Initiates emergency calls when triggered by an external button; supports PCMU, PCMA, G.711 (approx. 90 kbps), L16, G.722, and G.729 audio codecs for high-quality full-duplex audio Integration: Powered via two-wire bus; configurable via 2N® Service Tool or web interface; compatible with 2N® Lift8 Voice Alarm Station Switch for extended functionality; supports integration with external devices for enhanced communication