In-Building Wireless and Public Safety Communication
Too often, in building communication is limited due to building materials which can cause poor penetration of Radio Frequency (RF) signals. Thick concrete walls, low-emission glass windows, and steel-reinforced floors can block out or weaken wireless signals.
​
It’s critical that public safety personnel and first responders have reliable emergency responder radio coverage no matter the environment. Being able to communicate with their public safety two-way radio systems in buildings is crucial for the first responders to execute time-sensitive and mission-critical tasks to protect the public. Emergency Responder Communications Enhancement Systems (ERCES) are often installed to provide these necessary means of communication.
​
Avari Wireless’ Digital ERCES Distributed Antenna System (DAS) is perfectly suited for medium to large complex mission-critical communication deployments. Leveraging the latest digital hardware technology and intelligent software, Avari offers the industry's most advanced and resilient DAS architecture with self-healing capability for the world's most critical public safety communication infrastructure.
Whatever the Environment, Avari Wireless has the Solution
Campuses
Multiple building campuses can create challenges for active DAS deployments due to limited fiber plant connectivity with multiple buildings spread across a large geographical area. Avari’s digital DAS addresses these challenges by offering a flexible distribution architecture, supporting multiple connectivity topologies including star, daisy chain (cascade), hybrid, and loop, thereby maximizing existing fiber resources and minimizing new fiber installation costs. Ultimately, Avari provides the best solution because of the long reach with no loss of signal quality. Standalone systems for each building lack centralized management.
Additionally, our multiband content aggregation capability allows for the combining of RF content from different radio systems and geographic origins, supporting all common First Responder Bands: VHF, UHF, 700, 800, and 900MHz with a scalable, integrated high power platform.
​
Ease of installation and maintenance is afforded by a software configurable system topology consisting of an integrated multi-band headend and a simplified distribution architecture purposefully designed for supporting multiple remote units with Wavelength Division Multiplexing (WDM) operation (single fiber strand for both uplink and downlink). Integrated units provide a smaller footprint that is easy to install and commission as well as simplify battery backup operation. Avari's digital DAS systems can be easily expanded in the future to either add new buildings or RF bands.
Utilities
Old infrastructure, limited fiber availability and obsolete radio equipment are common issues facing the utility industry.
​
Avari’s high-power multiband integrated solution provides seamless and reliable coverage for challenging environments like nuclear power plants and hydroelectric dams. Our high-power multiband remote units can deliver 5W of power per band, even in lower bands like VHF and UHF. Our flexible architecture supports multiple distribution topologies including star, daisy chain (cascade), and hybrid, thereby maximizing existing fiber resources and minimizing new fiber installation costs.
​
Avari's high-reliability DAS solution provides a powerful network infrastructure that can accommodate all LMR bands, including VHF, UHF, 700MHz, 800MHz, and 900MHz. New radio bands can be easily added incrementally at a later date protecting your initial investment. Back-up headend radio sources can also be added to increase the availability of the system. Our high-power multiband integrated solution is ideal for all dense concrete and steel utility environments and is scalable to add emerging technologies like FirstNet.
​
The Avari VL Element Manager (VL-EM™) provides centralized system management over the entire distributed antenna network. In addition to fault, performance and configuration management capabilities, the VL-EM™ supports industry-standard Simple Network Management Protocol (SNMP) for easy integration with any third-party network management platform.
​
As per NFPA fire code standard, all of Avari's digital DAS network elements support dry contact alarm connections for both radio communication systems and battery backup units. Avari offers the most versatile fire alarm connection solution in the industry whether it is for centralized or distributed alarm panels.
Airports
Millions of travellers pass through airports each day, in addition to airline staff as well as maintenance crews, and multiple public safety agencies’ personnel who rely on seamless radio coverage to maintain smooth operations and security. Emergency responders need to communicate with their two-way radios during mission-critical situations, demanding high system availability supported by redundant configurations. With complex venues like airports, where there are multiple terminals, combined with light rail systems, tunnels, maintenance buildings and sometimes other transportation hubs, it creates a diverse and demanding environment when it comes to reliable in-building coverage. Integrating multiple radio sources over a large area can be very challenging.
​
Avari Wireless understands the unique set of circumstances that airports face. Avari's high-reliability first responder DAS solution provides a powerful network infrastructure that can accommodate a high density of users in all LMR bands, including VHF, UHF, 700MHz, 800MHz, and 900MHz. Avari’s solutions can digitally aggregate radio signal sources from different locations over fiber, which is a flexible and incremental way for meeting new requirements as airports expand. Our high-power multiband integrated solution provides seamless and redundant coverage for all airport environments and is scalable to add emerging technologies like FirstNet and Private LTE.
The Avari VL Element Manager (VL-EM™) provides centralized system management over the entire distributed antenna network. In addition to fault, performance and configuration management capabilities, the VL-EM™ supports industry-standard Simple Network Management Protocol (SNMP) for easy integration with any third-party network management platform.
​
As per NFPA fire code standard, all of Avari's digital DAS network elements support dry contact alarm connections for both radio communication systems and battery backup units. Avari offers the most versatile fire alarm connection solution in the industry whether it is for centralized or distributed alarm panels.
Tunnels
Millions of commuters pass through tunnels each day, be that by rail, subway or highway tunnels. Transit operations and maintenance staff, as well as multiple public safety agencies’ personnel rely on seamless radio coverage to maintain operations and ensure a safe environment. Tunnels can provide challenges to traditional DAS deployments, including long distances (optical link budget), old lossy radiating cables, the number of remote units required and multiband operation. These mission-critical applications also demand high system availability, which Avari supports with end-to-end redundant configurations with fiber diversity and automatic switchover.
​
Long tunnel lengths also provide situations where remote units can be separated by great distances, including several miles. Avari’s public safety DAS solution offers the longest available optical link budget by using digital transport, as well as Automatic Optical Delay Compensation, where the signal arrival time is measured to each remote unit and automatically balanced to synchronize antenna system network (important to mitigate time-delay interference (TDI) problems in narrowband systems as well as in LTE MIMO applications).
Limited fiber availability is another common problem in subway systems especially when redundant headend locations are at opposite ends of the rail line. Avari's flexible star and daisy-chain fiber connectivity along the ring topology is the perfect solution to the problem.
​
Avari's high-reliability first responder DAS solution provides a powerful network infrastructure that can accommodate all public safety bands, including VHF, UHF, 700MHz, 800MHz, 900MHz, and LMR wherever the signal sources are located. Our high-power multiband integrated solution provides seamless and redundant coverage for tunnel environments and is scalable to add emerging technologies like FirstNet and private LTE. High availability is supported by using redundant headend radio sources and intelligent algorithms to adapt, re-route channel traffic or re-configure signal path based on fault conditions to achieve self-healing without manual intervention.
​
The Avari VL Element Manager (VL-EM™) provides centralized system management over the entire distributed antenna network. In addition to fault, performance and configuration management capabilities, the VL-EM™ supports industry-standard Simple Network Management Protocol (SNMP) for easy integration with any third-party network management platform.
​
As per NFPA fire code standard, all of Avari's digital DAS network elements support dry contact alarm connections for both radio communication systems and battery backup units. Avari offers the most versatile fire alarm connection solution in the industry whether it is centralized or distributed alarm panels.
