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iOLM - intelligent Optical Link Mapper

Automated, expert-level singlemode and multimode fiber testing that eliminates the need to manually configure parameters or analyze and interpret multiple complex OTDR traces

Go beyond OTDR testing

Innovation is front and center at EXFO, and the intelligent Optical Link Mapper (iOLM) is a prime example of a game-changing solution. The iOLM lets you take advantage of the full power of your OTDR, bringing automation to a new level—and enabling even the untrained technician to become a test expert in no time.

The iOLM integrates all our expertise into a simple, easy-to-use software that will take your OTDR testing capabilities further than they’ve ever been. And since EXFO designs and optimizes each OTDR model so that it offers the best possible performance for its specific application, your solution will fit with your reality.

What it does, how it works

iOLM is an innovative OTDR-based application that uses multipulse acquisitions and advanced algorithms to deliver information on every element in the link with the following advantages:

  • Provides one-touch, automatic analysis and clear link view display
  • Minimizes training and avoids misconfiguration via automatic parameter settings and clear go/no-go results
  • Turns complex OTDR information into simple and accurate analysis via Link-Aware™ technology
  • Identifies each event on the network and obtains straightforward fiber link status via Optical Link View
  • Provides prompt diagnosis enabling network issues to be fixed quickly and efficiently
  • Generates OTDR trace files (.sor)

Key features

Comprehensive fault diagnosis and guidance
Self-setting unit dynamically adapts to any fiber link
Intelligent multi-acquisitions at multiple wavelengths in a single icon-based link-view
Consolidated bidirectional link-view (patent-pending)
OTDR trace file generator (.sor)
TIA/IEC automated pass/fail thresholds for enterprise/data center (optional)
Test two fibers at once with loopback testing mode (optional)


Point-to-point access
FTTx last mile
LAN/WAN, enterprise and data centers certification
Fronthaul (FTTA, DAS and small cells) and backhaul
Passive Optical LAN (POL)
Metro core and long-haul
Cable certification (IL/ORL measurement)

Share test results. Boost compliance. Unlock insights. 

Cloud-hosted solution for sharing test results and ensuring compliance. 

Paired with EXFO’s leading test instruments, EXFO Exchange drives an entire ecosystem, while integrating seamlessly with existing operation processes.

Key benefits :


icon automate test results managementAutomate test results management.

icon boost compliance efficiencyBoost compliance and efficiency.

icon improve collaboration visibilityImprove collaboration and visibility.

icon access comprehensive reportingAccess comprehensive reporting.

icon unlock insights see what mattersUnlock insights to see what matters.

Awards and reviews

Innovation and leadership have always been front and center at EXFO. Each year, we strive to develop solutions that will ensure superior customer experience in smarter, modern networks. Being recognized as such is always a great honor. Learn more about our awards:

Melanie Barber (Dawson)

Head of Field Delivery at NEC New Zealand Limited
iOLM is also great when you want to provide your customers proof of continuity and quality if they don’t have a great deal of fibre knowledge. Simple and clear.
Simple and clear

Julian Kruger

Fibre Optic Site and Implementation Consultant

By using iOLM and working effectively drawing reports daily with FastReporter and being fixed next day, I am proud to say in 2020 we built a network with no maintenance up to now.

In 2020 we built a network with no maintenance up to now

Jean Gregoire

Senior Design Specialist - Optical Transport - Development & Integrity at TELUS

In a fast and growing network, EXFO iOLM software has become a critical tool and asset for our Operations teams. iOLM allows to quickly visualize and understand the state of a fiber link. Technicians can clearly and efficiently pinpoint issues and avoid any confusion into the communication.

IOLM allows to quickly visualize & understand the state of a fiber link

Robert Teel

Telecom professional

I think iOLM should become an industry standard. It's easy to understand and follow, and is color-coded for pass/failed results.

Easy to understand and follow

Product demo


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