A basic system consists of patient calling stations, emergency calling stations, a central nurse station, dome lights with possible central corridor horns and duty stations. Emergency calls are placed from designated EC-103/115 Pull/Push Cord stations which are distinctly identified by the flashing suite dome light and central annunciator suite LED. The Central Nurse’s station will sound a fast pulsing alert tone and trigger any corridor horns that are connected. All tones may be silenced but the alarm can only be reset from the station that initiated the call. If the nurse fails to respond to the call within a preset period, the tones will re-initiate. Normal calls are placed from a Call Station which are distinctly identified by the slow fl ashing suite dome light and central annunciator LED. Similar silencing capabilities for emergency calls are provided for normal calls. When duty stations are used, the system may be remotely silenced and monitored for alarm calls.