Laser Pulse
The DAS controller sends coherent laser pulses through the sensing fiber.
FOTAS DAS
Distributed Acoustic SensingAdvanced security and infrastructure monitoring through continuous, real-time acoustic and vibration sensing along fiber optic routes.
REAL-TIME DISTRIBUTED MONITORING
Transform Security and Monitoring with Distributed Acoustic Sensing
FOTAS DAS is an advanced Distributed Acoustic Sensing system capable of real-time detection and monitoring over long distances.
The system uses fiber optic cables as passive sensing elements to detect mechanical and acoustic effects, helping identify third-party intrusions, excavation activity, movement and disturbances along the monitored route.
Instead of relying only on individual point sensors, the fiber itself becomes a continuous distributed sensor, providing monitoring across extended perimeters and infrastructure corridors.
UNDERSTANDING THE TECHNOLOGY
How FOTAS DAS Works
Optical Backscatter
Microscopic variations within the fiber scatter a small portion of the light back to the controller.
Event Detection
Vibration or acoustic activity changes the phase of the returned optical signal.
Analysis and Classification
FOTAS software analyzes the signal to locate and classify the detected event.
Need a more detailed technical explanation?
Explore DAS Technology
Explore coherent Rayleigh backscatter, time-of-flight localization and distributed sensing principles.
SECURITY INSTALLATION DESIGN
Installation Options
Fence-Mounted Installation
The sensing cable is mounted directly on the fence to detect climbing, cutting, lifting, impact and deliberate fence disturbance.
Buried Installation
A buried sensing route supports early warning detection of walking, vehicles, digging, excavation and third-party activity approaching the protected asset.
Hybrid Installation
Fence-mounted and buried sensing routes can be combined to create complementary detection zones and customized alarm strategies.
Project-specific engineering matters.
Cable type, mounting method, ground conditions, fiber route,
background activity and commissioning directly influence system
performance.
KEY APPLICATIONS
Where FOTAS DAS Is Used
Perimeter Security
Continuous monitoring of fences and buried approach zones around airports, power plants, prisons and critical facilities.
Explore ApplicationPipeline Security
Detection and localization of excavation, vehicle movement and third-party activity near pipeline rights-of-way.
Explore ApplicationBorder Security
Long-range monitoring across extended borders, remote terrain and strategically important boundary routes.
Explore SectorTelecom Infrastructure
Monitoring of fiber routes for excavation, construction activity and third-party interventions.
Explore Sector
KEY BENEFITS
Why Choose FOTAS DAS?
Real-Time Monitoring & Precision
Provides coverage up to 100 km with pinpoint location accuracy, down to 4 metres.
Artificial Intelligence
Supports hybrid installation for both buried and fence applications, utilising deep learning AI models to classify events such as digging, walking, vehicle movement, intrusion, climbing and fence cutting.
False Alarm Prevention Algorithms
Smart filtering system reduces false notifications by eliminating environmental noise.
Durability & Maintenance Requirements
20+ years of sensor lifespan with passive sensing, ensuring low maintenance costs.
Integration with Existing Systems
Compatible with security platforms such as Genetec Security Center, Milestone XProtect, and other third-party security applications.
Web Interface
User-friendly experience through a Web 2.0-based interface.
Integration Support
Easily integrates with different security systems through ONVIF camera support, SMTP, SNMP, REST API, and SDK compatibility.
Alarm Notification System
Sends real-time alerts via email and SMS.
Final range, localization and classification performance depend on the selected model, fiber condition, cable installation, site environment and commissioning.
RELIABLE ARCHITECTURE
Single- and Dual-Channel System Design
FOTAS DAS can operate with single or dual fiber sensing channels, supporting different route, availability and redundancy requirements.
In appropriately designed dual-channel architectures, sensing can continue from the opposite direction if one section of the fiber route is cut. Dual channels may also be used for separate buried and fence-mounted zones.
Single Channel
One sensing route for standard coverage requirements.
Dual Channel
Two channels for flexible, separated or redundant sensing.
Cut-Resilient Design
Continued monitoring may be supported when the fiber route
and dual-channel architecture are designed accordingly.
Fault-Tolerant Architecture
System design can be adapted to project-specific
availability and reliability objectives.
INTEGRATION SUPPORT
Connect DAS Events with Existing Security Systems
FOTAS DAS is designed to integrate with security, alarm and operational platforms, allowing detected events to be shared with the wider site security architecture.
Integration availability depends on the selected software version and project design.
ONVIF Camera Support
SMTP
SNMP
REST API
SDK
Email Alerts
SMS Notifications
Video Management Systems
Discuss Integration Requirements
TECHNICAL RESOURCES
Brochures, Guides and Documentation
DAS SYSTEM DESIGN SUPPORT
Select the Right FOTAS DAS Configuration
Discuss sensing distance, fiber architecture, installation method, event classes, redundancy and integration requirements with the FOTAS engineering team.
PRODUCT RANGE
FOTAS DAS Models and Datasheets
FOTAS DAS is available in eight single- and dual-channel configurations. Model selection depends on sensing distance, fiber architecture, redundancy requirements, installation design and project-specific performance objectives.
D SERIES
Dual-Channel DAS Systems
Designed for separate sensing zones, route flexibility or redundant dual-channel architectures.
Dual Channel
3 km
FOTAS DAS D-3
Short-range dual-channel configuration for compact, high-priority monitoring zones.
View Datasheet
Dual Channel
5 km
FOTAS DAS D-5
Dual-channel architecture for shorter routes requiring two sensing channels or monitoring zones.
View Datasheet
Dual Channel
30 km
FOTAS DAS D-30
Long-range dual-channel solution for extended and operationally critical monitoring routes.
View Datasheet
Dual Channel
50 km
FOTAS DAS D-50
Extended-range dual-channel architecture for large-scale, resilient sensing deployments.
View Datasheet
S SERIES
Single-Channel DAS Systems
Designed for applications where one sensing channel provides the required route coverage.
Single Channel
5 km
FOTAS DAS S-5
Compact single-channel configuration for shorter sensing routes and defined perimeter zones.
View Datasheet
Single Channel
10 km
FOTAS DAS S-10
Single-channel DAS configuration for medium-length perimeters and infrastructure routes.
View Datasheet
Single Channel
30 km
FOTAS DAS S-30
Long-range single-channel configuration for extended security and infrastructure corridors.
View Datasheet
Single Channel
50 km
FOTAS DAS S-50
Extended-range single-channel configuration for large-scale and long-distance monitoring routes.
View Datasheet