Spec Sheet Preview: The Alpha Communications® / TekTone NC150N series audio-visual nurse-call system is designed for health-care applications where voice communication and visual indication is required. The NC150N system can support only a single master station per system. When a remote station is activated, the NC150N annunciator will sound an electronic tone and will light, indicating the location of the call. The tone signal can be silenced at the master station (and/ or at the optional LI150B remote duty station(s) for non-emergency calls). …