SmartClass OLA-54/-55/-55M

Optical Level Attenuators

The VIAVI SmartClass optical handhelds, including the OLA-54 and OLA-55 models, are advanced and intelligent tools designed for testing and measuring optical signals and systems. With their extended calibration wavelengths, intuitive user interface, intelligent power supply management, and robust design, these handheld devices provide accurate and reliable results for professionals in network testing, installation, and maintenance. They offer precise attenuation setting, versatile compatibility, and convenient accessories, making them a valuable asset for optimizing network performance and ensuring efficient operations.

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The VIAVI SmartClass OLA-54 and OLA-55 Optical Level Attenuators are cutting-edge tools designed to enhance your network performance and ensure accurate testing and measurement of optical signals and systems. With their advanced features and reliable functionality, these handheld devices are the ideal choice for professionals in system testing, installation, maintenance, and production of fibre optic networks.

Key Features:

  • Extended Calibration Wavelengths: Offers the highest performance range in the industry with an extended number of calibration wavelengths, ensuring accurate and precise measurements.
  • Intuitive Graphical User Interface: The SmartClass optical handhelds feature an intuitive graphical user interface, making operation fast, easy, and straightforward, saving you valuable time.
  • Intelligent Power Supply Management: Equipped with an intelligent power supply management system, these devices optimize battery life for extended operation in the field.
  • Belt Bag for Hands-free Operation: The included belt bag ensures safe and hands-free operation and transport, allowing you to work efficiently and conveniently.
  • Traceable Measurements: All measurements provided by the SmartClass optical handhelds adhere to international standards, providing you with confidence in their accuracy.
  • Robust Design: Built to withstand the demands of field operations, these devices feature a robust, shock-proof, and splash-proof design, ensuring durability and reliability.
  • Quick Start Operation: The SmartClass optical handhelds require no warm-up time, allowing you to start testing immediately and reducing overall testing time.


  • Enhanced Network Performance: By utilizing the SmartClass optical handhelds, you can take your network performance to the next level, ensuring optimal functionality and reliability.
  • Versatile Compatibility: The SmartClass OLA-54 is designed for multimode fibre systems (50/125 μm fibre), while the SmartClass OLA-55 is a future-proof instrument for single-mode fibre testing. Both devices provide versatile compatibility for various network configurations.
  • Precise Attenuation Setting: The SmartClass OLA-54 and OLA-55 feature a wheel for precise and fast manual setting of attenuation, allowing you to achieve accurate and desired signal levels.
  • FTTx Ready: These optical attenuators are FTTx ready, enabling efficient testing and installation in fibre-to-the-x (FTTx) environments.
  • Convenient Accessories: The SmartClass optical handhelds come with useful accessories such as a dust cap, optical connector cleaning kit, optical adapters, visual fault locator, and more, providing you with a comprehensive toolkit for your testing needs.

Specifications (SmartClass OLA-54):

Fibre Type: 50/125 μm multimode fibre design
Minimum Insertion Loss: Low minimum insertion loss thanks to the new optical design
Attenuation Setting: Absolute and relative attenuation setting options
Wide Wavelength Range: Adjustable wavelength range from 750 to 1350 nm in 1 nm increments
Rugged Design: Shock-proof design ensures durability in field operations
Extended Battery Life: Long operating time of over 300 hours from dry batteries

Specifications (SmartClass OLA-55):

Fibre Type: 9/125 μm single-mode fibre
Calibrated Wavelengths: Supports calibrated wavelengths of 1310 nm, 1550 nm, and 1625 nm
Attenuation Range: Display range from 2.0 to 60 dB, providing a wide dynamic range for precise measurements
Bi-Directional Function: Supports bi-directional testing for comprehensive analysis
High Permitted Level: Can handle high power levels up to +23 dBm

When it comes to ensuring accurate and efficient optical testing, the VIAVI SmartClass OLA-54 and OLA-55 Optical Level Attenuators are your trusted companions. With their advanced features, durable design, and comprehensive accessories, they empower you to achieve superior network performance, streamline your testing processes, and deliver reliable results. Invest in the VIAVI SmartClass optical handhelds today and take your network to the next level.