vault backup: 2025-10-27 16:34:32

emergency-communications-systems.md

@@ -4,17 +4,34 @@ aliases: []
 tags:
   - authorship/original
   - destiny/permanent
-  - topic/construction/electrical
   - status/incomplete
+  - topic/construction/electrical
   - type/encyclopedia
 title: Emergency Communications Systems (ECS)
 ---
 # Emergency Communications Systems (ECS)
 
-## 2-Way vs. AoR
+## Area of Refuge/Rescue (AOR)
+
+Used to provide 2-way communication between the building exterior
+and one or more designated areas
+offering relative protection from hazards (mainly fire) in an emergency.
+
+An AOR system usually also includes illuminated directional signage.
+
+> [!important]
+> Despite their similarities in purpose,
+> AOR is not a fire alarm system nor a component of one.
+> When requesting low voltage quotes,
+> it is necessary to specifically list AOR,
+> else contractors may assume it is by others.
 
 Area of Refuge is defined in [[nfpa-101_life-safety-code|NFPA 101: Life Safety Code]].
 
+[[nfpa-72_national-fire-alarm-code#24.10 Area of Refuge (Area of Rescue Assistance) Emergency Communications Systems, Stairway Communications Systems, Elevator Landing Communications Systems, and Occupant Evacuation Elevator Lobby Communications Systems.]]
+
+## Two-Way Communication Systems
+
 In NFPA 101 "two-way communication system" is used as generic term,
 to be installed in accordance with the governing code [[nfpa-72_national-fire-alarm-code|NFPA 72: National Fire Alarm and Signaling Code]].
 
@@ -22,4 +39,20 @@ to be installed in accordance with the governing code [[nfpa-72_national-fire-al
 
 [[nfpa-72_national-fire-alarm-code#24.8 Two-Way, In-Building Wired Emergency Services Communications Systems.]]
 
-[[nfpa-72_national-fire-alarm-code#24.10 Area of Refuge (Area of Rescue Assistance) Emergency Communications Systems, Stairway Communications Systems, Elevator Landing Communications Systems, and Occupant Evacuation Elevator Lobby Communications Systems.]]
+## Emergency Responder Radio Communication Systems (ERRCS)
+
+> [!info] Also Known As
+> * Emergency Responder Radio Coverage (ERRC)
+
+Relevant Standard: NFPA 1225
+
+Where required, compliance is achieved by means of BDA and DAS systems
+as required by the AHJ.
+
+> [!quote]
+An Emergency Responder Radio Coverage (ERRC) system
+is a Public Safety Radio (PSR) DAS system
+that enhances the coverage of wireless signals in buildings.
+This allows first responders to communicate more effectively during emergencies.
+
+## Voice Evacuation