2N® LiftIP 2.0 Voice Alarm Station Switch (921661E) Technical Specifications Brand: 2N® Model Number: 921661E Function: Interconnecting switch for extending 2N® LiftIP 2.0 with audio units installed on the cabin roof and/or under the cabin, enabling emergency communication Installation: Mounts in elevator shaft or machine room; connects to 2N® LiftIP 2.0 via 6-pin and 10-pin interconnecting cables; supports two RJ-12 connectors for audio unit connections; requires breaking out cable holes in switch cover for wiring Compatibility: Compatible with 2N® LiftIP 2.0 systems and 2N® LiftIP 2.0 Voice Alarm Station Set (921001SET); integrates with 2N® Elevator Center for remote monitoring; complies with EN 81-28 and EN 81-70 standards Control: Facilitates ALARM2 calls from connected audio units to predefined destinations; configurable via 2N® Service Tool or web interface (default login: Admin, password: 2N); supports PCMU, PCMA, G.711, L16, G.722, and G.729 audio codecs Integration: Supports Power over Ethernet (PoE 802.3af) or DC 10–30V; connects microphone and speaker from audio units (marked SPK and MIC); enables remote configuration and monitoring via IP network