Network and Service Companion (NSC-100)

A compact instrument for techs and contractors handling installation, activation and troubleshooting of residential broadband, business services and Metro/Enterprise Ethernet services. Benchmarking network delivery, validating service performance and distribution while driving compliance to best practice to simply test everything anywhere

Network and Service Companion (NSC-100)

The Network and Service Companion (NSC-100) is a new category of compact hand-held device combining multiple test interfaces (PON, Ethernet, WiFi) with the VIAVI ‘OneCheck’ application concept to make network validation and high speed (Gigabit and higher) service testing a simple and speedy process for all frontline techs and installers, be they beginner or expert.

A single high-performance tool that allows techs to operate in multiple network environments and applications allowing network delivery and service performance to be easily documented with clear and fast demarcation/segmentation of any issues in under a minute.


  • Empowering techs to go further with simple, fast and comprehensive service activation test and troubleshooting over multiple interfaces.
  • Combines PON delivery and in-premises service distribution testing with PON, Ethernet and high-end WiFi test interfaces.
  • One button press ‘OneCheck’ application makes network validation and service testing a simple and speedy process.
  • Enables accurate benchmarking of service delivery to and distribution within a premises with clear and fast demarcation/segmentation of any issues.
  • Drives compliance of best practice to reduce or prevent customer complaints, call-backs and churn.
  • Operated directly via the VIAVI Mobile Tech app or used with OneExpert (ONX) to expand capabilities.


  • Service installation, activation & troubleshooting 
  • Access networks troubleshooting.
    • PON – for FTTH & 5G x-haul.
    • CATV – for DOCSIS 3.1.
    • Telco – for xDSL & Gfast.
  • Metro/Ethernet  
    • Enterprise & Data Center.
    • Business services.
    • Wireless fronthaul – 4G & 5G.

Key Features:

  • Robust, field-ready, screen-less design.
  • PON test interface with ONU/ONT emulation.
  • Ethernet test interfaces up to 10G.
  • Ethernet L2/L3 loop back support for Y.1564 & RFC-2544 tests up to 10 Gbps.
  • VIAVI Fusion (centralized test system) leverages NSCs as remote-controlled test agents.
  • High-end WiFi test interface – 3×3 WiFi antenna with 2.4 & 5GHz; WiFi Expert shows coverage, channel noise, airtime, and throughput.
  • Automated ‘OneCheck’ feature ensures that all necessary and required tests/checks are performed by a tech while on site.
  • Multiple levels of gigabit or higher throughput testing (Ookla Speedtest, TrueSpeed RFC-6349, FTP SpeedCheck) for service evaluation against whatever benchmark is needed.
  • Service speed tests available through all test interfaces.
  • Job Manager helps techs manage their Jobs, Test Results & Reports.
  • On-board report generation and submission via the cloud (StrataSync) or direct email (smart phone / tablet)

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