VIAVI FTH-DTS Fiber Test Head for Distributed Temperature Sensing
Rack-mount fiber test head for distributed temperature sensing (DTS) of power cables, pipelines and telecom cables over a single fiber.
- Measurement technology
- Dual wavelength single mode Raman and Rayleigh OTDR
- Fiber access
- Single-ended, requiring only one fiber
- Chassis
- Compact, 2RU rack mountable
- Ports
- Multi-port measurement
Overview
The VIAVI Fiber Test Head for Distributed Temperature Sensing (FTH-DTS) is part of the NITRO Fiber Sensing solution. It provides continuous monitoring of fiber cables and fiber-enabled assets, using the optical fiber itself as the sensor to deliver real-time temperature information along the cable route, with detection and localization of events.
The instrument performs Distributed Temperature Sensing (DTS), giving absolute temperature measurements along extended lengths of fiber optic cable. It combines dual-wavelength single-mode Raman and Rayleigh OTDR in one package, housed in a compact 2RU rack-mountable chassis with multi-port measurement, and operates single-ended, requiring access to only one fiber.
Typical deployments include critical infrastructure such as power utilities, pipelines carrying oil, gas or water, and telecom networks including data center interconnects (DCI). Monitoring temperature changes over time supports operational efficiency and allows preventive action to reduce the risk of damage or outages.
The FTH-DTS integrates with third-party systems and is compatible with the VIAVI ONMSi Remote Fiber Test System. A portable version, the OneAdvisor 800 DTS, is available for site audits, spot checks and troubleshooting.
Key Features
- Distributed temperature measurement along the fiber
- Dual wavelength single mode Raman and Rayleigh OTDR in one package
- Compact, 2RU rack mountable chassis
- Multi-port measurement
- Single-ended solution requiring only one fiber
- Low power, rack space and HVAC requirements
- Simple GUI
- Easy integration with 3rd party systems
- Compatible with the VIAVI Remote Fiber Test System (RFTS) ONMSi
- Fast response, event detection and localization
- Simultaneous monitoring across multiple assets, environments and applications
- Detection of exposed cables and confirmation of depth of burial
- Identification of risks due to excessive or abnormal temperature
Specifications
| Measurement technology | Dual wavelength single mode Raman and Rayleigh OTDR |
|---|---|
| Fiber access | Single-ended, requiring only one fiber |
| Chassis | Compact, 2RU rack mountable |
| Ports | Multi-port measurement |
Applications
- Electrical utilities
- Power cable hot spot detection
- Depth of burial monitoring
- Real-Time Thermal Rating (RTTR)
- Pipelines (oil, gas, water)
- Linear heat detection
- Leak detection
- Telecoms, dark fiber providers and data center interconnects
- Fiber health and degradation monitoring
- Infrastructure and structural health monitoring
- Bridges, buildings, dams and foundations
- Geothermal wells
- Oil and gas downhole monitoring
Documents & Resources
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