Security, safety, and communication systems are only as reliable as the power that drives them – a constant that must never be compromised. When deployed in key verticals like hospitals, schools, shopping centers, smart cities and data centers, even brief power interruptions can disrupt access control, surveillance, and emergency communications. Fortunately, there are a number of effective power redundancy solutions for critical systems using proven technologies like Automatic Transfer Switches (ATS), intelligent battery backups, and rapid charging solutions.
The integrity of modern security infrastructure depends on consistent power distribution. A momentary power loss can trigger a cascade of failures, like unauthorized access, loss of video and disabled alarms, whose impact may only be felt after the damage is done.
In mission-critical environments, reliable power redundancy solutions can keep operations running even if the primary power fails. A layered power infrastructure architecture should allow backup power to activate seamlessly and restore functionality without delay.
Power Continuity for security infrastructure typically hinges on two pillars: automatic source switching and backup battery power with recharging capability. These technologies work in tandem to maintain uptime and mitigate risks associated with utility failure, environmental events, or internal disruptions.
An ATS monitors two independent AC power sources, typically a utility feed and a generator or dual utility feeds. If the primary source fails or voltage drops below the threshold, the ATS automatically switches to the secondary source, ensuring uninterrupted power delivery to connected devices. When evaluating an ATS solution, key features should include:
Battery backups provide continuity during power outages and/or between source transitions. However, battery backup solutions need to be properly sized for the load and capable of recharging quickly to be ready for subsequent outages.
Modern charging units can restore 32AH+ sealed lead-acid or gel batteries in under eight hours. This rapid turnaround is essential for clients with frequent outages or outdoor installations where AC restoration may be delayed.
Look for battery backup charging solutions that include:
For pole-mounted, rooftop, or remote installations, fast and intelligent battery management keeps security edge devices fully operational, even during grid outages.
Not all security components require the same level of uptime protection. A best practice for integrators is to classify components into tiers based on their critical function.
Devices such as fire alarms, emergency door access, and notification devices should have full ATS failover connected to their backup battery chargers.
This tier includes video surveillance, intercom, and access control devices that should have ATS solutions connected to the primary and secondary power sources to ensure continuous operation.
Systems such as non-essential lighting or digital signage may only require surge protection or local UPS. This approach helps critical operations stay online during prolonged outages while keeping overall costs in check.
Redundant power systems are only effective when their status is continuously monitored. Effective backup power solutions should include:
By proactively tracking AC loss, battery voltage, and system health, clients can prevent unexpected failures and schedule maintenance before critical events occur. Supervision also reduces technician dispatch time, enabling remote diagnostics and faster resolution.
Each vertical market presents unique challenges for maintaining reliable power. Here’s how solutions can be tailored to meet specific client requirements.
Hospitals and clinics depend on uninterrupted access control and environmental safety. Power continuity is vital for securing restricted areas, maintaining elevator control, and enabling emergency evacuation. Dual-source ATS solutions and long-duration battery backup systems will support the continuous operation of door hardware and critical communication networks.
Airports, train stations, and metro systems require constant surveillance and access management. In these environments, rapid-charging battery systems for poles and gates, along with DIN-rail-mounted ATS units installed in compact enclosures across distributed sites, help maintain reliable operation during power disruptions.
Even milliseconds of downtime can mean data loss. A layered power infrastructure with ATS should be designed to isolate source failures and smart battery solutions with load-sharing capabilities. Health alerts should be integrated into broader facility monitoring platforms.
With increased focus on lockdown systems and active shooter response, power continuity solutions for K-12 schools and higher education campuses are essential. Redundant power should cover perimeter control, notification systems, and classroom communication equipment. Battery backup duration should be tailored to support extended outages common in rural or underserved regions.
While generally designed for installation in demanding applications and environments, modern redundant power solutions vary in features and configuration. Look for battery backup solutions that offer:
These features simplify maintenance and service, reducing labor costs, which benefits both servicing dealers and their customers.
Uninterrupted power distribution is critical to better secure buildings, provide safe environments, and maintain fluid operations. For systems integrators and servicing dealers the challenge transcends just meeting code or basic battery backup requirements, but also engineering reliable and continuous operation into every system installation.
By leveraging technologies like Automatic Transfer Switches, intelligent battery backup charging, and remote supervision, system integrators can provide their customers with power infrastructure that adapts, responds, and endures. In a world of evolving threats, redundant power solutions are more than a technical decision – they’re a commitment to safety, continuity, and trust that protects customers’ people, property and assets, and builds long term relationships that ensure business continuity.
Ronnie Pennington
Director of Sales for the Americas
Altronix
The Altronix Circ1ATS is a High Voltage Redundant automatic transfer switch that can be added to any Altronix power supply with a high voltage input. This unit accepts connections from two (2) Independent High Voltage AC sources (Primary and Secondary) and provides a single redundant High Voltage AC Output. If AC Power is lost on the Primary input, the Circ1ATS automatically transfers to the Secondary AC Power input without delay, ensuring that system security is maintained.
