EXPLORE
• RADIUS Client Software
• Supported Radio Platforms
• System Architecture and Deployment Options
GATEWAYS
RADIUS Radio-over-IP (RoIP) Gateways
Mission-Critical Radio Gateway Hardware
Overview
RADIUS Gateways extend radio communications beyond physical boundaries—connecting radios, operators, and networks across local, wide-area, and satellite links.
Unlike server-based or cloud-dependent systems, RADIUS gateways operate as fully self-contained appliances, delivering deterministic performance at the edge.
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RADIUS Gateways are deployed in dispatch centers, fixed radio facilities, vehicles, and tactical field environments where reliability, operational control, and long-term support are required. All gateways operate as standalone appliances and do not rely on cloud services or third-party infrastructure.
All RADIUS Gateway platforms share a common embedded Linux architecture and use a one-time, perpetual licensing model.
Common Gateway Architecture
All RADIUS Radio-over-IP gateways are built on a shared hardware and software architecture to ensure consistent performance, predictable behavior, and scalability across deployment types.
EMBEDDED LINUX PLATFORM
RADIUS Gateways run a SyTech-managed embedded Linux operating system designed for long-term stability and deterministic operation. The operating system is fully integrated into the hardware appliance and does not require customer system administration or external management services.
SYSTEM-ON-MODULE (SOM) DESIGN
RADIUS Gateway platforms use Texas Instruments Sitara™ System-on-Module (SoM) architectures to provide dedicated processing resources for real-time radio audio, radio control, and IP networking.
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The SoM-based design allows RADIUS gateways to scale from compact tactical radio gateways to high-density rackmount radio gateways while maintaining a common hardware and software baseline.
DETERMINISTIC ROIP PROCESSING
RADIUS Gateways are purpose-built radio gateway appliances—not virtual machines, general-purpose servers, or routers. Radio audio processing, control signaling, and IP transport are handled locally on the gateway hardware to ensure deterministic performance under operational load.
Gateway Platforms
RADIUS 1U Rackmount Radio Gateway
HIGH-DENSITY RADIO-OVER-IP GATEWAY
DESIGNED FOR FIXED INFRASTRUCTURE:
The RADIUS 1U is a rackmount Radio-over-IP gateway designed for centralized radio infrastructure and dispatch environments. It is commonly deployed in dispatch centers, communications rooms, and enterprise radio facilities requiring high radio density and continuous operation.
SCALABLE MODULAR ARCHITECTURE:
The RADIUS 1U Gateway uses modular Radio Processing Units (RPUs), each supporting four radio interfaces. Multiple RPUs are installed within a standard 1U chassis to scale radio capacity while preserving a consistent system architecture.
KEY CHARACTERISTICS:
• Standard 19-inch 1U Rack-mount Form Factor
• Embedded Linux Operating System
• Texas Instruments Sitara™ Cortex-A53 SoM Architecture
• Parallel Multi-radio Processing
• AC Power Input for Fixed Racilities
• Designed for Extended Temperature Operation
AVAILABLE CONFIGURATIONS:
• 4 Radio Interfaces
• 8 Radio Interfaces
• 12 Radio Interfaces
• 16 Radio Interfaces
RADIUS 4-Port Tactical Radio Gateway
COMPACT RADIO-OVER-IP GATEWAY
DESIGNED FOR MOBILE
& DISTRIBUTED DEPLOYMENTS:
The RADIUS 4-Port is a compact Radio-over-IP gateway designed for mobile, vehicle-mounted, and distributed radio deployments. It provides full RADIUS gateway functionality in a rugged enclosure suitable for tactical, vehicular, and space-constrained environments.
DUAL SOM PROCESSING ARCHITECTURE:
The RADIUS 4-Port Gateway uses a dual System-on-Module architecture based on TI Sitara™ processors to support real-time radio audio, radio control, and IP networking while maintaining low power consumption.
KEY CHARACTERISTICS:
• Four Radio Interface Ports
• Embedded Linux Operating System
• Dual quad-core Processing Architecture
• DC Power Input (12–30 VDC)
• Compact, Lightweight Enclosure
• Front-panel Display and Status Indicators
RADIUS TAC2 Transportable Radio
Gateway System
RAPIDLY DEPLOYABLE ROIP GATEWAY
DESIGNED FOR TACTICAL & FIELD OPERATIONS:
The RADIUS TAC2 is a transportable Radio-over-IP gateway system designed for rapid deployment and temporary field operations. It is housed in an FAA-compliant transit case and supports tactical and contingency communications where fixed infrastructure is unavailable or impractical.
SYSTEM CHARACTERISTICS:
• Supports up to 8 Radio Interfaces
• Integrated Touchscreen System Control
• Approximately 8 hours of Internal Battery Operation
• Built-in Network Switching and Wi-Fi Routing
• Approximate Ssystem Weight: 25 lbs
• FAA-compliant Transport Case
INTEGRATED SYSTEM ARCHITECTURE:
TAC2 integrates multiple system components into a single deployable radio gateway platform, including:
• RADIUS Gateway Hardware
• Touchscreen Gateway Controller
• Internal Ethernet Switching
• Integrated Power Distribution and Battery
• Wi-Fi Routing
• Cable Management and Storage
Radio Interfaces & Control
RADIUS Gateways support direct connectivity to a wide range of modern and legacy radio platforms using purpose-built radio interface and control connections.
SUPPORTED INTERFACE TYPES
• Analog Audio
• USB
• RS-232 / RS-485
• CAN Bus
• IP-based Radio Control (platform dependent)
REMOTE RADIO CONTROL
For supported radio platforms, RADIUS provides on-screen virtual radio control heads that replicate native radio interfaces, allowing operators to remotely control radios without altering established operational workflows.
Gateway Software & Licensing
RADIUS Radio-over-IP gateways support optional software modules that extend system functionality without changing the underlying hardware platform.
OPTIONAL CAPABILITIES
• Multisite Radio System Federation
• Audio Recording and Playback
• Remote Radio Control
• SIP and VoIP Device Integration
• Smartphone Connectivity (RIOS LiTE)
Gateway software licenses are perpetual unless otherwise noted. Core gateway operation does not require recurring cloud subscriptions.
Deployment Models
RADIUS Gateways support a range of radio system architectures while maintaining a consistent operator experience:
• Centralized Dispatch and Communications Centers
• Distributed Radio Sites with Local Gateways
• Vehicle-mounted and Mobile Command Platforms
• Tactical and Rapidly Deployable Radio Systems
• Hybrid Architectures Combining Rackmount Gateways, Compact Gateways, and TAC2 Systems
Designed for Operational Control
RADIUS Gateways are engineered for organizations that require direct control over system behavior, data, and availability.
• No Cloud Dependency
• Operation on Customer-owned Networks
• Deterministic Hardware-based Processing
• Long-term Lifecycle and Platform Support
Next Steps
RADIUS Gateways form the hardware foundation of the SyTech RADIUS Radio-over-IP system. Operator interfaces, client software, and optional services build on this gateway core without altering system architecture.
EXPLORE
• RADIUS Client Software
• Supported Radio Platforms
• System Architecture and Deployment Options
CONTACT SYTECH
Discuss gateway selection, system design, and deployment guidance.
