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Fully Automated Optical Loss Test Set (OLTS)

The FX100 is a multi-function tester that performs automated bi-directional Insertion Loss (IL) and Optical Return Loss (ORL) measurements on fiber optic systems. This compact, handheld and robust device is ideally suited for a variety of test applications for today’s CATV, Telco, FTTx PON access networks and data center.


  • Robust, handheld design for demanding field testing
  • Rugged, compact-sized form factor
  • High resolution, 5” TFT color touch-screen suitable for both indoor and outdoor use
  • Fast boot-up and measurement
  • Intuitive display, simple function keys and touch-screen for fast navigation and easy operation
  • Internal data storage with expandable SD card
  • Micro-USB OTG interface for flash drives, fiber inspection probe connection and test data transfer
  • Mini audio interface for talk set headphone
  • Rechargeable lithium polymer battery with capacity indicator, low voltage alarm and auto-off function
  • Continuous operation of > 9 hours without having to recharge batteries
  • Built-in WiFi option to perform software upgrades and for uploading test data via wireless Internet connection
  • Built-in Bluetooth option for pairing applications with mobile smartphones and tablet PCs


  • Fully automated bi-directional loss testing for up to 3 wavelengths in < 15 seconds
  • On-board wizard to assist with referencing process
  • High-power InGaAs power meter (7 calibrated wavelengths)
  • Up to 4 laser wavelengths
  • Multimode laser options – 850 and/or 1300 nm
  • Singlemode laser options – 1310, 1490, 1550, 1625, and/or 1650 nm
  • Source CW, 270, 1000 or 2000 Hz
  • Optical Return Loss (ORL) meter
  • Talk Set to aid with technician communications
  • Visual Fault Locator (VFL) option
  • Frequency detection for fiber identification
  • Optional universal interface with interchangeable optical adaptors (SC, ST, FC, LC) for OPM and OLS port
  • Save results in .oxls format and generate reports