Fiber OneShot™ PRO

Product Highlights

All mainframe, kit and accessory models are retired. Learn more about the next generation OptiFiber Pro OTDR

  • Works on single mode fiber, 9/125µm
  • 1550nm output wavelength. Compatible with standard PON wavelengths: 1310, 1490, 1550 and 1625nm
  • Measure up to 75,459 feet (23,000 metres) of fiber in seconds
  • Locate severe bends, high-loss splices, breaks and dirty connectors in singlemode fiber
  • Measure and locate high loss connections and breaks View More >
  • Locate the end of a fiber
  • Find potential sources of high bit error rates caused by reflectance from dirty or poor connections
  • Detects live optical signals before it begins testing
  • Quick set-up. Connect your fiber and press the Test button. No lengthy set-up necessary
  • Find problems quickly. Six-second test time—no more blind troubleshooting that can waste hours
  • Change the Index of Refraction (IOR) to improve fiber length accuracy
  • Visible in dark areas. Backlighted display turns off automatically
  • Removable SC adapter is easily cleaned
  • Optional LC, ST and FT interchangeable adapters are available
  • Long battery life, 1,500 tests (typical) from 2 AA alkaline batteries
  • Rugged construction; vibration and drop tested to 1 meter

Related Products

CertiFiber Pro-Input Adapter is Incorrect

It is not uncommon for our Technical Assistance Center (TAC) to receive a call where the user complains that the input connection supplied for CertiFiber Pro is for an ST type connector.

CertiFiber Pro ships with NFA-SC Output connections and the NFA-LC Input connections.

The NFA-xx Input adapters can be swapped to support different fiber connector types, and the same are used whether the reference cords or fiber under test is multimode or singlemode.



Although it looks like the NFA-LC Input adapter would accept an ST connector, it will not.  Look for the double ring on the input adapter.  This is how you know it is for an LC connection.



The LC input takes the clip from the LC connector, and it snaps in, as shown in the picture above on the right. 

The NFA-ST Input has pins on the outside of it to accept the ST connector

Below is a comparison of the NFA-LC (left) and NFA-ST (right)



Conclusion:  If the Input adapter has a double ring and no pins on it, it is the NFA-LC Input adapter.


Input adapters for CertiFiber Pro are available for purchase separately if you need to order replacements or configure to test a link with different connectors than SC or LC.


NFA-SC - Set of 2 SC Interchangeable Adapters for CFP power meter port

NFA-LC -  Set of 2 LC Interchangeable Adapters for CFP power meter port.

NFA-ST - Set of 2 ST Interchangeable Adapters for CFP power meter port

NFA-FC - Set of 2 FC Interchangeable Adapters for CFP power meter port


We also have Test Reference Cord (TRC) KITs for setting One Jumper reference and testing links terminated with these connector types.

For details, look in the Models & Accessories section for CertiFiber Pro

6912-Fiber Cable: Now That’s Testing!

November 7, 2019 /

While most enterprise data centers see fiber counts ranging from 12 to 144, the fibers counts found in cloud and colocation data centers are much higher – typically anywhere from 864 to 1728.

Most of us would consider these high-count fiber cables a very large trunk, but when it comes to hyperscale data centers with hundreds of thousands of servers and extreme workloads (think Amazon, Google, Microsoft and Facebook), it’s not unusual to see fiber counts of 3456 and 5184.  And believe it or not, those numbers are growing. Several fiber cable manufacturers now offer 6912-fiber cables and 7776 fibers are on the horizon.

With that many fibers in one cable, the overall size of the cable and the time involved in testing is hard to imagine. And we’re not typically talking about a simple Tier 1 testing for insertion loss. High-count fibers coming into large data centers are singlemode ribbon fiber and Tier 2 testing with an OTDR is the norm.

Fitting it All

When fiber counts reach upwards of 3456, fiber cable manufacturers have had to get creative to keep cables at a manageable size. While outside plant fiber typically uses a 250-micron coating, many high-count fiber cable designs today use a 200-micron fiber to enable a more compact design. Keep in mind that the core and cladding size of the fiber hasn’t changed, so mass fusion splicing to 250 or 900-micron fiber is still the norm.

Some other new innovations we see in these high-count ribbon fiber cables include rollable or flexible ribbon fiber (sometimes referred to as “web”) that allow for nearly double the density compared to traditional outside plant ribbon cable.

Rather than a traditional flat design that bonds the 12 fibers in the ribbon along the entire length of the cable, rollable ribbon fibers partially bond individual fibers at predetermined points along the fiber, allowing the fiber to be rolled rather than lay flat. On average, this type of design allows for 3456 fibers to fit into a 2-inch duct compared to a flat design that can only accommodate 1728 in the same space. Rollable ribbon fibers are also lighter in weight, allowing for longer pulling distances and reduced labor costs.

Testing and Tracking it All

When it comes to testing a 6912-fiber cable, how quickly and efficiently your OTDR can perform a trace becomes more important than ever. Think about it; if one OTDR takes just 5 seconds longer to perform a trace compared to another, that equates to an extra almost 10 hours to test 6,912 fibers.

OTDRs like Fluke Network’ OptiFiber® Pro with a higher dynamic range and automated set-up and trace analysis offer much faster testing. With a higher dynamic range of 42 dB and automated trace analysis, OptiFiber Pro enables a two second trace per wavelength. It then analyzes the data and displays it as an EventMap, Table or Trace. And with automated setup, multiple wavelengths and parameters are automatically performed in a single test.

When it comes to Tier 2 OTDR testing, bidirectional testing and averaging of the results is required by industry standards and for most manufacturers’ warranty – and it adds testing time. Rather than moving the tester to the other end of a duplex fiber link for bidirectional testing, a loop is typically used at the remote end that allows both fibers to be tested in both directions from one end. The OptiFiber Pro features a built-in “SmartLoop” Assistant that checks for the presence of the launch, loop and tail fiber when testing, and it automatically averages the results to cut testing time even more.

While speeding test time is critical, keeping track of all 6,912 fibers during the process and managing the results may seem like a daunting task. But it doesn’t need to be. Fluke Networks’ cloud-based LinkWare Live is ideal for testing high-count fiber—not only can multiple testers be configured and programmed with cable IDs ahead of time to reduce errors and maintain consistency, but test data from multiple testers being used by multiple technicians can effortlessly be consolidated into a single project. And you can bet that when it comes to hyperscale data centers using high-count fiber cables, multiple technicians are testing. LinkWare Live also supports an unlimited number of projects and offers unlimited storage.

Request an OptiFiber Demo

Internal Error Unable to Create PDF Report - LinkWare PC


If you see the above error message displayed when trying to create a PDF file within LinkWare PC, it may be due to a conflict of software versions between the tester that ran the test and the LinkWare PC software installed on your computer. Check for an update for your LinkWare PC software by navigating to:

 [Help] > [Check for Updates] shown below.



You will need to have Administrator rights to install the LinkWare PC software.

If Check for Updates returns the message “Software is up to date.”, it is possible that the tester was manually updated to a new version which is not yet automatically being sent through the older software. As a part of the standard release cycle, new software versions are available to download manually from our website for about one week before they are available through the old software. You can check if there is a new version available to download manually from our website here.

If updating the software does not resolve the issue, please contact technical support at [email protected]