emClock Applications

emClocks present the current time and important messages on college campuses, in school buildings, hospitals, clinics, commercial spaces, sports venues, and in government facilities. An emClock system is a cost effective mass notification solution that can address the individual needs of each location in your facility. Here are some examples of how emClock can be used to support your mass notification needs:

Campus Environmental Hazard

A chemical leak at the State University's Aquatics Center prompted an immediate evacuation of the facility. Authorities evacuated three buildings at 9:49 a.m. citing Freon leaking from the valve of a 400 pound cylinder used for air conditioning in the Aquatics Center. The airborne chemical Freon, a coolant also known as R22, left a mist inside the Aquatics Center which took several hours to clear.


  • 9:42 - A mist was noticed in the Aquatics Center
  • 9:45 - The emClock Control Panel Software was used to send messages to the emClock network clock system to evacuate the following buildings:
    • The aquatics facility
    • The South Campus Parking Garage
    • The neighboring Smith Recreation Center
      • A directional message was used to evacuate the garage and recreation building away from the Aquatics Center
  • 9:55 - The source of the mist was identified as a tank of Freon R22:
    • The buildings were ventilated
  • 2:25 - The Evacuation Order was removed
    • All three buildings were sent an "All Clear" Message

Found Package Prompts Evacuation of Federal Building

Two floors of the Downtown Federal Building were evacuated after a suspicious package was found on the loading dock in the rear of the building.


  • 3:45 - An unidentified package was noticed on the loading dock of the Federal building
  • 3:55 - The Power over Ethernet (PoE) emClock system was used to evacuate the immediate area pending the identification of the source of the package:
    • The receiving area was evacuated
    • The administrative offices on the first floor closest to the loading dock were evacuated
    • Messages directed staff to the front of the building
  • 4:10 - With the source of the package still in question, the emClock system was used to evacuate the entire building
    • Messages directed staff and the general public to exit from the front of the building; away from the loading dock
  • 5:30 - Review of the package indicated no risk
    • "All Clear" Message issued

City School Snow Closing

The forecast called for 10% chance of snow when the decision was made to hold school. By 10:00 AM everything changed. Snow had started and the updated forecast called for 6 - 8 inches of snow by early evening.


  • 10:15 - A decision was made to close all city schools at 12:30
  • 10:20 - The transportation department and all City Schools Administrative Offices were notified
  • 10:30 - Coordinated notification services were activated
    • Automated Emergency Phone Notification was used to contact parents
    • Automated Email System was activated
    • Local media notification was engaged
    • In School notification was handled by a brief PA announcement and with emClock
  • 12:15 - The mass notification features of emClock were used to announce the snow closing
    • Indoor emClocks provided direction and timely preparation for closing
    • Outdoor emClocks at the bus pickup locations supported an orderly exit for each school
  • 12:45 - The emClock messages were cleared and the schools were closed

Intruder Security Threat

An increase in gang activity has placed the schools located in the Southeast section of the city on high alert. After the morning session started an unknown youth evaded the security area at the east entrance and entered the main high school building.


  • 9:35 - A report of a security breach was made after a young man vaulted the security gate.
    • He evaded the ID reader and the magnetometer
    • The East Wing of the main building contains 24 Classrooms
    • Security staff was immediately notified via secure radio communication
      • The East Wing of the main Building was sealed off from the rest of the building
  • 9:36 - Main office received notification and issued several coded security messages via emClock
    • The local police department was notified
    • Code 3 was sent to the main building classrooms to effect a "Shelter in Place" response
    • The Code 4 message was sent to the Art and Athletic buildings to retain all students
    • Security officers were dispatched to the East Wing
    • These messages were visible in the classrooms and in the hallways
  • 9:40 - The breach was confirmed and a description of the intruder was provided to security
    • A Code 2 message was sent to the East wing to increase security
    • The emClock Tone Alarm was activated with the Code 2 message
    • Local police were notified
  • 9:46 - Security officers reported seeing intruder leave the building
    • A security inspection of the East Wing was started
  • 9:52 - Security reports indicate that the incident was closed
    • An "All Clear" message was sent to the entire campus
    • Local police were notified.

High Priority Messaging

  • Security Alerts
    • Supports location-specific security event management
    • Escalation of security situation is best managed with timely accurate information
  • Coded Security Messages
    • Location specific messaging supports directional evacuation
      • Personnel in one building can Shelter In Place
      • Personnel in neighboring buildings can be directed away from the security risk
    • Provide appropriate event management details to different populations
      • Send detailed information to the staff locations
      • Send detailed information to the staff locations
    • All messages including "All Clear" messages are delivered immediately
      • No missing messages due to a noise or lack of PA coverage
      • Can be used to provide clarity and to reinforce PA or other messaging systems
  • Environmental Hazards
    • Chemical spills
    • Air quality issues or conditions
  • Local Area Emergency Conditions
    • Fires in the vicinity
    • Traffic or mass transit issues
  • Natural Disasters
    • Eerthquakes
    • Tornados
    • Floods and more

Low Priority Messaging

Scheduled messages are often used in support of facility operation. The Scheduled Messages are low priority and will only replace the Time Presentation or other Scheduled Messages on the emClock. Scheduled Messages can be configured to play on specific days of the week or on specific calendar days. They can also be configured to include the current time at the end of the message. Use of Scheduled Messages include:

Meeting or Facility Usage Information

  • Announcements
    • "Board Meeting at 11:00 in Room 220"
    • "Welcome School Boosters" - sent to the lobby emClocks
    • "Trip Permission Slips are due on Friday"
  • Location Specific Schedule Changes sent to individual classrooms or conference rooms
    • "Chem 201 has moved to the Lab" - scheduled to run for just that class period
    • "Day Hall parking lot will be closed on Monday"
  • General Event Announcement
    • "Pep Rally at 4:30 Today in the Practice Field"
    • "Intermission - Please support your school by visiting the refreshment booth"
  • Operational Information
    • "Vaccination Clinic -- 11:00 to 4:00 on Monday"
    • "Exam Week Refreshments in Willard Hall at 8:00"
    • <Flashing Time> scheduled to play for five minutes between each class period
    • "Today's lunch menu is: …"
  • Facilities Management
    • "Loading Dock 114 serves Washington DC"

Paging Applications

  • Silent Paging
    • Hospitals: Paging at Nurses Stations. Use emClocks in support of PA announcements
    • Classroom request for students or staff to report to the Main Office
    • Libraries
  • Paging with Tone Alarm
    • High noise environments: athletic facilities and cafeterias
    • Critical requests for emergency medical staff

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