Expanded video control unit for the GT system with more than 5 entrances, 2 concierge stations, or 48 tenant stations. 1 per system. Mounting rail included.
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- Communication: Hands-free, voice-actuated communication or push-to-talk communication Wiring: Two conductor cables (Aiphone #872002 for audio and Aiphone #871802 for video)
- Door Release: Connecting terminals: between ELM - ELC (N/O) and ELB - ELC (N/C) Sp