STACS Applications in Public Safety

The STACS system has been successfully deployed in Public Safety applications for the last five years.  Customers have proven STACS to provide communications they can rely on, year after year.

Communications Gaps

Covering every last square mile in a state by seploying radio towers and repeaters in remote areas is prohibitively expensive.  STACS provides comprehensive communications in Gap areas including radio, telephone and comprehensive data services.

Infrastructure Outages

Unfortunately, major incidents including earthquakes, hurricanes and major civil unrest are often accompanied by infrastructure outages.  STACS systems can provide reliable communications regardless of the availability of cellular, radio or power infrastructure.  Political leadership, critical infrastructure industry and incident site public safety agencies can work independently and as a group using the STACS communications system. 

Comprehensive Capabilities

STACS provides everything you need for incident site communications in a single carry-on sized Pelican(tm) case.  The STACS system can be operational in under two minutes in any weather conditions.  Simple, one button operation facilitates operation by personnel with little or no training using the included one page quick reference card as a guide.

Data Services

The STACS system supports multiple backhaul data links including satellite, cellular, mesh wireless and infrastructure internet.  The system automatically selected the least expensive available backhaul link and automatically provides both fail over when a link becomes unreliable and fail-up when a less expensive link returns to reliable operation.  Transitions between different backhaul links are done with seamless continuity of data, VOIP and ROIP communications.

Multiple satellite data services are supported including INMARSAT BGAN using the Explorer data terminals, ViaSAT Exede, and commercial and military VSAT systems.  Multiple satellite systems can be connected to a single STACS system allowing for rapid deployment with INMARSAT and automatic switchover to ViaSAT or VSAT as the satellite link becomes available.  This allows agencies to establish communications within 1-2 minutes of arriving at an incident site and switch over to VSAT to provide relatively inexpensive communications for long-term incidents.

STACS supports the latest high speed cellular communications technologies including 4G/LTE and LTE+.  All major carriers are supported and failover between multiple carriers is available.  Developments in the FirstNet national public safety LTE network are being closely monitored and STACS will provide support for these networks as soon as they become available.

Municipal mesh wireless and standard infrastructure internet connections are also supported allowing the STACs systems to take advantage of any available communications backhaul links.

Telephone (VOIP) Services

One or more standard incoming phone numbers (DID numbers) are provided with each STACS system.  These phone numbers are independent of the backhaul technology in use.  Each DID number supports multiple concurrent incoming and outgoing calls limited to 50 calls or available bandwidth on the current backhaul link.  Each active call uses 9Kbps or less allowing 30 concurrent calls on INMARSAT (the slowest supported backhaul link) with 128Kbps still available for data communications.

Each STACS system provides a comprehensive incident-site PBX with voicemail, conference calling and local calls between extensions.  Each STACS deskphone or wireless phone is allocated a unique extension number.

The STACS system can be integrated with an agency PBX making all STACS deskphones and handsets operate as normal extensions on the agency PBX.  This allows extension to extension calling between any agency PBX extension and STACS handsets, and between STACS handsets at different sites.  When integrated with an agency PBX, the STACS system can also use agency DID numbers for incoming calls and route outgoing calls through the agency PBX.  The STACS cloud based VOIP services are still available as a backup should the agency PBX become unavailable.

Radio (ROIP) Services

The STACS 200RM and 200RM2 ROIP adapters provide both radio bridging and remote radio access for any radio system regardless of frequency or modulation.  Radio bridging can be local at an incident site allowing agencies with incompatible radio systems to communicate seamlessly, or remote allowing agency radio networks to be extended into areas without repeater coverage.  Remote radio access can be use to provide EOC personnel two-way access to incident site communications, or provide leadership personnel access to radio communications from anywhere in the world internet access is available.

The STACS ROIP system is designed to be deployed and operated by personnel without training in radio or networking operations.  Endpoints can be preconfigured to connect to a predefined bridge as soon as they are turned on, and the bridging configuration can be modified with a single click on a web based interface.

Power Management and Environmental Considerations

The STACS system has been designed using the latest, low power components.  System power consumption for the STACS 200PP system when using cellular or satellite backhaul averages under 5 watts.  With a 117 watt-hour battery, 20 hour runtimes from the internal battery are the norm.  An internal battery charging system that accepts 10-36V DC and an external universal AC power adapter support field charging from almost any power source.   The modest power requirements of the STACS system allow operation from small solar arrays, fuel cell based power systems or automotive power.

The STACS power inputs are protected against reverse power and overvoltage and are provided with multiple power input lead sets as well as screw mount terminal blocks for improvised power.

The STACS 200PP system is fully weatherproof and can be operated in any storm conditions.  It has been tested and proven in the Lousianna hurricanes, Arizona summer desert sun and Massachusetts winters.  Some special considerations are required for operation in freezing rain or below 20 degrees Fahrenheit.

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