DAS N56-Series
In critical infrastructure monitoring, reliability and security are essential. The DAS N56-Series is designed for large-scale and complex monitoring tasks, delivering true dual-channel sensing over long distances in one compact instrument.
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Secure Distributed Acoustic Sensing at Scale
200 km Range
True dual-channel DAS with full 2 × 100 km range – monitors independent fiber routes from a single system.
AP.TrustedCore
Cyber-secure by design (CRA-compliant) with Integrity OS, secure boot, signed updates, immutable system core, and process isolation.
Integrated Design
Compact, lightweight design with reduced 3U system height.
3P Vector Technology
Direct phase extraction for improved sensitivity and lower noise.
Protected Housing
Designed for reliable operation in dusty and harsh environments.
Configurable
Choose single, simultaneous dual-channel or up to 4 sequential channels.
Rigorously Tested
Validated through testing aligned with applicable industry standards.
Maximum Uptime
Supported by intelligent self-diagnostics for fast troubleshooting.
Intuitive Interface
Designed to reduce setup time and configuration effort.
Smart Detection
Reliable detection powered by multiclass AI discrimination.
Easy Integration
Use AP Sensing‘s Connected Asset Platform or your own asset management / control system.
Grows With Your Asset
Easy upgrade and expandability for existing installations, protecting customer’s investments.
The DAS N56-Series: Built for Critical Infrastructure
The DAS N56-Series is designed for large-scale industrial and infrastructure monitoring. It delivers long-distance distributed acoustic sensing with stable signal quality across extended assets. This enables reliable monitoring in complex environments where consistent performance and system robustness are essential.
360° Awareness
- Physical Asset Security: Manual digging, excavator digging, drilling, pile driving...
- Intrusion Detection: Fence climbing, cutting, tunneling, manhole opening...
- Event Detection: Faults, leaks, landslide, rockfall...
- Condition Monitoring: Aging, fatigue, wear-out...
- Moving Objects: Train, truck, car, person, anchor, trawl net...
- Data & Insights: Forensics, identify root cause, gain operational insights...
The Frequency Band Energy (FBE) visualization highlights how much energy is present in different frequency ranges, helping to distinguish between various types of events or activities along the cable.
AP.TrustedCore
Full Software Control
AP.TrustedCore delivers true software-defined control of sensing and acquisition parameters. Pulse width, gauge length, acquisition bandwidth, and decimation factor are fully configurable in software, enabling precise optimization for each deployment.
Advanced Detection Algorithms
The DAS N56-Series leverages machine-learning algorithms to enhance event classification and system confidence. The result is robust multi-event detection with improved signal discrimination and reduced false alarm rates, even in demanding field environments.
Web-Based User Interface
Designed with modern network environments in mind, the N56-Series provides secure, browser-based access to all core system functions. System setup, configuration, real-time monitoring, and diagnostics are handled through an integrated web interface, supporting streamlined deployment and remote accessibility.
Distributed System Architecture
The DAS N56-Series software architecture is designed to support scalable, multi-system deployments across large monitoring networks. Its distributed design helps avoid single points of failure and supports stable system operation. Centralized fleet management enables coordinated monitoring and efficient management of multiple DAS units across sites.
Intelligent Setup and Fiber Monitoring
The DAS N56-Series integrates intelligent setup and fiber monitoring functions to streamline installation, commissioning, and system validation. Integrated system checks and validation routines ensure reliable performance verification from initial setup through deployment.
IT Security
AP.TrustedCore is built on an immutable, hardened operating system designed for secure operation in critical infrastructure environments. Secure boot, cryptographically signed updates, and strict process isolation protect system integrity and safeguard against unauthorized modification.
Compliance
AP Sensing operates an information security management system certified according to ISO/IEC 27001. The DAS N56-Series software is designed to support compliance with the EU Cyber Resilience Act (CRA) across the product lifecycle.
Product Features
True Dual-Channel Sensing |
Full 2 x 100 km DAS for monitoring independent fiber routes from a single instrument.
Outstanding Signal Quality |
High signal-to-noise ratio enables long-distance sensing without external amplification.
Enhanced Low-Frequency Sensitivity |
30% higher low-frequency sensitivity supports improved detection of relevant events.
AP.TrustedCore |
Cyber-secure by design with secure boot and immutable system core for CRA-compliant operation.
Layered Security |
Process isolation and restricted access rights limit the impact of potential vulnerabilities.
Industrial-Grade Housing |
Protected enclosure design supports reliable operation in dusy and harsh environments.
Flexible Channel Configuration |
Supports single, true dual-channel or sequential operation with up to four sequential channels.
Compact, Lightweight Design |
Reduced system height supports space-efficient installation and deployment.
High-Performance I/O and remote control |
Supports efficient operation, monitoring, and remote system access.
Flexible Measurement Configuration |
Architecture supports application-specific sensing and measurement settings.
Precise Event Localization |
Enhanced dynamic range and spatial resolution support accurate localization.
Smart User Interface |
Delivers critical real-time data at a glance to support faster insights and decisions.
Flexible Data Storage |
Supports centralized or customer-defined data storage architectures.
Open Integration Interfaces |
Bi-directional REST API enables integration with operational and IT systems.
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FAQs
What is the AP Sensing DAS N56-Series?
The AP Sensing DAS N56-Series is a long-range Distributed Acoustic Sensing (DAS) interrogator for monitoring critical infrastructure.
It is designed for monitoring critical infrastructure applications including pipelines, power grids, railways, subsea infrastructure and perimeter or border assets.
It turns a standard fiber-optic cable into a continuous acoustic sensor, detecting, localizing, and classifying a wide range of events, including construction activity (excavator and manual digging, pile driving, auger drilling, jack hammering), fence tampering (climbing, cutting), person and vehicle movement, leak detection, and cable faults, among others, so operators can act before an incident causes damage, downtime, or safety risk.
What is the sensing range of the DAS N56-Series?
The DAS N56-Series supports simultaneous sensing over two independent channels of up to 100 km each, up to 200 km aggregate sensing coverage from one instrument.
For operators, that means very long pipelines, subsea cables, railway corridors, or border and perimeter zones can be monitored end-to-end without deploying and maintaining multiple separate systems. It supports up to 4 fibers and can be configured for single-channel, simultaneous dual-channel, or up to four sequential channels, so the same instrument scales from a small pilot site to a full network rollout.
What makes the DAS N56-Series different from other DAS systems?
The DAS N56-Series combines three capabilities that are particularly relevant for large-scale infrastructure monitoring:
- Long-range dual-channel sensing: two independent channels of up to 100 km each can be monitored simultaneously from one instrument.
- 3P Vector sensing: AP Sensing's 3P Vector technology measures phase information directly and is designed to deliver high sensitivity and low measurement noise over long distances. This provides approximately 30% improved low-frequency sensitivity compared with the preceding AP Sensing DAS generation and increases the available signal margin for detecting weak events.
- Compact industrial design: the N56-Series integrates this capability into a 3U, approximately 16 kg instrument designed for deployment in control rooms and remote infrastructure.
How does the DAS N56-Series protect against cyber threats?
Because DAS systems are deployed as part of critical infrastructure, cybersecurity is a procurement requirement, not an afterthought. The DAS N56-Series is built on AP.TrustedCore, AP Sensing's cyber-secure-by-design software platform, with secure boot, signed software updates, an immutable system core, and process isolation, protecting the system itself from tampering or compromise. It is also engineered to support compliance with the EU Cyber Resilience Act (CRA), helping operators meet their own regulatory obligations, and is backed by AP Sensing's ISO/IEC 27001-certified information security management system.
What applications and industries use the DAS N56-Series?
The DAS N56-Series is designed for long-distance infrastructure monitoring applications including underground and subsea power cables, overhead transmission lines, oil, gas and water pipelines, railways, perimeter and border security, and subsea infrastructure. Depending on the application and analytics software used, the system can detect, localize, and classify a wide range of events, including third-party interference, excavation activities, intrusions, people and vehicles, pipeline leaks, power cable faults, trains and other moving objects, as well as other abnormal mechanical events.