The portable DTSS on the T-BERD/MTS-8000 platform brings new DTSS technology to the field in a uniquely portable and high powered combination. This product can also be provided in a rack-mounted optical test unit within an OTU-8000 to be combined with ONMSi for a permanent fiber monitoring solution.

VIAVI OTDRs allow technicians all over the world to characterize optical cables by measuring the optical length, the global loss and, the common events such as splices, connectors and slopes that affect cable performance and signal transmission. Now the B-OTDR enables engineers to utilize a fiber as a fiber optic sensor to measure strain and temperature across the fiber.

In the case of abnormal splice or slope values, the associated event is immediately and automatically identified, highlighted and located in the results table, facilitating the technician’s work of troubleshooting service affecting faults.

By using a dual wavelength OTDR (for instance 1550, 1625nm) and by making comparison between measured values at the two wavelengths, a technician can detect bends along the cable route.

All the measurements done above give information regarding the quality of the optical network.


  • Fiber characterization with B-OTDR reveals fiber strain and elongation or temperature.
  • Ensure installations are done correctly without strain.
  • Reduce and reverse cable strain by locating and releasing it before it breaks the cable or reduces the cable life using the portable DTSS.

Key Benefits

  • Simultaneous temperature and strain measurement
  • Single-ended solution requiring only one fiber
  • Portable and rack mounted form factors
  • Portable: Compact, modular and lightweight- no generated required
  • Rack-able form factor pairs with VIAVI Fiber Monitoring Solution (ONMSi)

 Key Features

  • BOTDR solution (Brillouin OTDR)
  • Temperature & strain threshold monitoring
  • Decorrelation of temperature & strain
  • Multi-port measurements
  • Low power consumption – rack-able version
  • Battery operated – portable version
  • Remote connectivity


  • Pipeline Monitoring
  • Telecommunications cable strain testing for manufacturing, installation and maintenance
  • Power cable monitoring
  • Structural Health Monitoring (SHM)