SSTDR S100
Safe: Identifies potentially dangerous short circuits and arc faults while systems remain energised.
Monitor: Continuously observes cable health to detect open circuits, impedance changes, and intermittent faults.
Assess: Collects baseline data to anticipate degradation trends and avoid future failures.
Prevent: Reduces downtime by enabling maintenance teams to respond quickly to detected fault locations.
Integrate: Ready-to-use, board-level engine for easy integration into OEM systems and monitoring platforms.
Overview
Viper’s SSTDR S100 is a fully engineered, credit card-sized, board-level fault detection engine designed to identify and locate electrical faults in live systems. Using Spread Spectrum Time Domain Reflectometry (SSTDR) technology, it continuously monitors cables and wiring for short circuits, opens, arc faults, and impedance changes—all without interrupting operation.
Ideal for OEMs, system designers, and operators, the S100 offers accurate fault detection across cable lengths ranging from meters to kilometres. By providing real-time visibility and data-driven fault detection, the S100 enables efficient deployment of maintenance, prevent downtime, and ensure electrical safety across a wide range of applications.
Real-Time Insight For Live Cable Fault Detection.
More about SSTDR S100 features & technology
The SSTDR S100 represents a step change in live fault detection and electrical safety. Built around Spread Spectrum Time Domain Reflectometry technology, it emits a coded, low-voltage signal along conductors, continuously analysing reflections to identify and locate faults—even while power is flowing.
Unlike traditional TDR systems, SSTDR allows safe and continuous operation on live electrical networks, removing the need for shutdowns or disconnection. The S100 can detect open circuits, short circuits, arc faults, as well as impedance changes . It also identifies intermittent or evolving faults that are otherwise difficult to capture.
Compact and credit card-sized, the S100 is a fully engineered, board-level detection engine that can be easily integrated into OEM equipment or larger diagnostic systems. Multiple modules can operate on the same conductors without interference, supporting cable lengths from just a few centimetres to several kilometres.
In the rail sector, SSTDR technology is integrated into Viper’s CableGuardian system, enabling accurate fault detection and location across over one million metres of signalling power cables. When combined with V-LIM insulation monitoring, it forms a complete monitoring and fault management ecosystem—improving safety, reducing downtime, and empowering proactive maintenance.
Resources
Find answers to common questions about the V-LIM product and its applications.
Brochures & Datasheets
SSTDR S100 Datasheet
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White papers & Technical Papers
A SSTDR Methodology, Implementations, and Challenges
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Stay Safe. Detect Early. Prevent Downtime.
Maintain electrical safety and uptime with SSTDR S100—the intelligent solution for live fault detection and rapid response.
Find faults faster, act sooner, and keep your systems performing with confidence.
Applications
SSTDR technology can support any sector where electrical integrity matters. Contact us to find out how SSTDR can support your industry.
Case Study
Pinpointing cable faults in minutes, not days
Following repeated signalling power alarms, CableGuardian with SSTDR capability enabled engineers to pinpoint a developing fault to a specific cable section within minutes. This accuracy eliminated the need for prolonged on-track testing, reduced workforce exposure, and enabled targeted repairs that restored full service quickly. The case highlights how rapid location dramatically cuts disruption.
Solutions To Maximise Asset Life
Electrical Condition Monitoring
Real-time visibility of your electrical system’s health using V-LIM and V-SLIM technologies, detecting insulation degradation early to prevent costly downtime.
Protection for Electrical Systems
Our patented V-LIFE technology restores insulation resistance without intervention — extending cable life and maintaining reliable, safe operations.
Predictive Analytics for Protection & Performance
Data-driven insight through PlatformVi and the CableGuardian Portal, turning monitoring data into preventative action and predictive intelligence.
Detection & Location of Electrical Faults
Pinpoint accuracy with SSTDR technology — detecting and locating faults before they cause disruption, improving network reliability.