OneExpert DSL Modular Field Test Platform for, xDSL, Copper, FTTH and WiFi

Consistently achieve high-performance results when deploying fast broadband service to the home.

Accelerate Gigabit Broadband deployment! OneExpert DSL, ONX-580 Family, helps field technicians fix problems—the first time. The multi-touch, user-friendly interface and OneCheck automated tests ease complex tasks with clear pass/fail results. And, its future-proof modules ensure years of use supporting access and home networks. The modular platform scales to fit both outside plant and in-home use cases at the right price point with three models: the service focused ONX-580A, the standard ONX-580 with copper and service testing, and the new ONX-580P for advanced copper and service test. All models can support FTTH and WiFi testing.


  • Modular platform scales for new WiFi, fiber, and xDSL technology including VDSL Profile 35b and
  • OneCheck automates field tests and simplifies Copper and DSL results to consistently close jobs correctly
  • One-button OneCheck TDR auto identifies fault types and locations right away
  • Prove the true customer experience with a standardized TrueSpeed™ test (RFC-6349)
  • Three ways to test throughput (Ookla, SpeedCheck and Broadcom Speedtest)


  •, VDSL (vectoring and bonding), and ADSL networks
  • Copper, TDR, spectral tests
  • Fiber, wifi, coax, and wiring test and installation
  • Web, video, VoIP, TrueSpeed verification and troubleshooting

Key Features

  • Test and ADSL2+/VDSL2 including bonded and vectored pairs, copper, POTS, and coax/HPNA
  • Multi-touch, friendly user interface leverages user experience from smartphones and tablets
  • Multiple options for one button speed testing including Ookla and TrueSpeed™
  • StrataSync cloud-enabled architecture provides easy asset management and test data management

Stratasync Enabled

This product is StrataSync enabled
StrataSync is a hosted, cloud-based solution that provides asset, configuration, and test data management for VIAVI instruments and ensures all instruments have the latest software and options installed.

Ookla Speedtest Option

Fiber to the Home (FTTH) and technologies are helping service providers get Gigabit per second broadband services to residential customers, increasing their service quality expectations. With increasing broadband service speeds and prices, end-users want proof that they’re getting the promised service speed.

Speedtest by Ookla is a familiar and trusted method for many end-users to check their service speed, but a premises technician typically doesn’t carry around the beefy hardware required to perform a legitimate Ookla test (desktop PC or laptop with a network card capable of handling the gigabit speeds), because it is costly, and unwieldy.

  • Confirm installation or repair service quality before you leave the job. Directly validate Quality of Experience.
    • Reduce call-backs and improve customer satisfaction
  • No complex setup parameters required. A single button press launches Speedtest by Ookla, optimized for Gigabit class services
  • Cut precious job time, especially if multiple speed tests needed
  • Same test application your customer is already using. No need to translate your results to a format the end-user can understand
    • Effective customer education reduces service calls and improves customer satisfaction scores
  • No complex server setup or IT integration efforts needed. Speedtest by Ookla utilizes the extensive Ookla server infrastructure already in place for public use, automatically selecting the best server to use at test run-time
    • Save the cost of purchasing server hardware, software and maintenance
    • Save opportunity cost–concentrate on business-critical activities vs. building and maintaining a distributed server infrastructure

As part of the test industry’s widest speed test portfolio, Viavi offers an innovative and optimized approach to bring residential service technicians the comfort and familiarity of Speedtest by Ookla, at gigabit class speeds through a simple software option upgrade for the OneExpert family of communications testers. Works with ONX-580, ONX-580A, ONX-580P, ONX-620, and ONX-630.

DSL Helper Option

DSL Helper Option

OneExpert Embedded Tech Support
Installation and service technicians are facing a growing range of technology challenges in the local access environment. Along with this, they are typically the least experienced, least trained work group. OneExpert goes a long way toward meeting these challenges, with automated test processes and pass/fail result lists, but in many cases less experienced techs could use some help understanding what things mean. 

The DSL Helper option gives techs clear explanations for DSL results in a popup that can be accessed in the manual test mode. The context sensitive help info is easily accessible by scrolling through results and pressing “OK” when a measurement result is highlighted.

Over time the technician will become familiar with terms and the meaning of results – so DSL Helper can augment your in-house training program. When techs understand the tests and results, this leads to a more successful outcome for installation and service calls, and fewer call-backs. Works with ONX-580, ONX-580A, and ONX-580P.

Smart Access Anywhere Option

Remote Access to OneExpert
Occasionally a technician may face an unfamiliar and challenging situation in the field. With Smart Access Anywhere, a coach, an expert, or senior technician can remotely control an ONX in the field from his laptop or smart device from any location with a secured IP connection.

The Smart Access Anywhere application instills confidence in field workforce knowing they have ready access to support that can coach them regardless of their location. Service Providers can incur revenue quicker, reduce repeat truck rolls, and keep customers happier by solving problems with the first tech on site. Works with ONX-580, ONX-580A, ONX-580P, ONX-620, and ONX-630.

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