Our blog features news, announcements, and updates about our company and services.



Our blog features news, announcements, and updates about our company and services.

ERRCS vs. DAS: What’s The Difference?

ERRCS vs. DAS: What’s The Difference?

A Public Safety Communications system is a wireless communication system used by first responders and emergency services personnel, providing seamless two-way communication.

Some people mistakenly think that A DAS system can be used as an ERRCS solution, but this isn’t the case. 

So what are the differences between an ERRCS and a DAS system? Let’s look at what they are designed to do, how they work, and where they’re typically deployed.

What Is A DAS System?

A Distributed Antenna System (DAS) is a system of antennas installed in a building to enhance and enable carrier services throughout a structure.

DAS systems are most commonly installed indoors and typically consist of multiple antenna nodes connected by a fiber optic cable network. 

However, they may also be installed at outdoor stadiums, arenas, or malls with limited cell tower coverage. Geography and building materials can also affect poor cell reception and impact a business’s performance during peak operations. 

DAS Is Connectivity Focused

Distributed Antenna Systems are designed to provide building-wide connectivity. It ensures every floor, room, and corner has access to reliable carrier service, providing occupants, visitors, and businesses with complete coverage.

DAS Systems can support voice, data, and video services to multiple cellular carriers on the same system using a combination of RF engineering and expertise. 

While a Cellular DAS System is useful for providing potential victims with a lifeline by ensuring a reliable connection, a DAS is very different from an ERRCS. 

It’s important to distinguish these two systems from one another, given the difference in purpose, design, compliance, and resilience. 

What Is An ERRCS?

An Emergency Responder Radio Communications System, or ERRCS, ensures reliable and redundant two-way communication for first responders within building structures. 

These systems use communications compatible with existing public safety radio frequencies to ensure that first responders, paramedical professionals, and public safety personnel communicate safely.

ERRCS Mandated By Authorities

ERRCS systems are mandated by the NFPA and Authority Having Jurisdictions (AHJs), while cellular DAS systems are not. 

Most buildings that meet a specific size and occupancy threshold, which varies from city to city, must have an ERRCS system installed and be subjected to Annual Testing and Recertification (ATR). 

Value Through DAS And ERRCS

While underestimated, cellular DAS systems can significantly appreciate the value of any venue or building. 

This is evidenced by bad cell reception which instantly turns away possible tenants looking to rent or purchase property in your building. 

ERRCS are more straightforward since their existence on-premises is mandated by the NFPA, as the system supports first responders and protects occupants. This adds an extra layer of value that property owners and managers can capitalize on to increase their standing in the market. 


ERRCS and DAS can be great options depending on your needs and budget. However, it’s essential to understand their differences to find the right solution for your communications system.
Are you looking to dive deeper into both systems? Reach out to us for a consultation!

Leave a comment

Your email address will not be published. Required fields are marked *

Skip to content