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M310_LinkMap M310_TruEvent-1 M310 with optional DFS1 M310 menu M310 Capture

M310 Enterprise OTDR


  • Industry Leading TruEvent™ analysis ensures event reporting accuracy
  • Short dead zones enable detection of closely spaced events
  • Integrated Source, Power Meter and VFL
  • LinkMap™ visually display network
  • Live fiber detection prevents damage to network equipment
  • Inspection capable with DFS1 Digital FiberScope
  • Dynamic Range up to 38 dB
  • Multiple languages supported
  • 16 hour battery run time
  • Automatic Pass/Fail Analysis (TIA/ISO)


  • Test, troubleshoot and document networks with closely spaced events
  • Tier 1 and Tier 2 testing and certification of SM and MM networks
  • Enterprise network, Data Center, LAN/WAN
  • Document and create standards compliant acceptance reports with TRM™ 2.0, companion PC software
  • Test and troubleshoot networks up to 250 km
  • Test and certify campus & central office networks, and Distributed Antenna Systems (DAS) fiber infrastructure
  • Inspect fiber end-faces using DFS1 Digital FiberScope
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Product Description

M310 Enterprise OTDR

The M310 OTDR is specifically designed to address the technical challenges associated with today’s enterprise network architectures.  The M310 features AFL's TruEvent™ Technology, allowing users to confidently determine where losses meet or exceed network specifications. TruEvent advanced event analysis software more accurately detects, locates and measures network events such as splices, connectors, breaks and macro-bends.

The M310 is easy to use with visual result display LinkMap, comes standard with integrated Source, Power Meter and VFL, and is inspection ready with the DFS1 connector inspection probe. No surprise 'add-on' charges for these commonly needed support functions.

Features and Benefits:

Industry Leading TruEvent™ Technology - Provides a new level of accuracy and reliability in event analysis. The M310 is the best performing OTDR for enterprise and data center applications.

Short dead zones - to validate and troubleshoot typical Data Center and Enterprise networks
  • Event Dead Zones 0.8m
  • Attenuation Dead-zones < 3 m
Superior Dynamic Range - Higher dynamic range means you can test short networks with narrower pulse widths (better resolution), as well as test longer networks -- Great for contractors supporting both single-mode and multimode Enterprise networks
  • 38 dB Single-mode
  • 30 dB Multimode
Easy to read results  with LinkMap™ – LinkMap with Pass/Fail simplifies network troubleshooting and enables even novice users to easily and accurately troubleshoot optical networks.
Built-in Optical Light Source (OLS), Optical Power Meter (OPM), Visual Fault Locator (VFL), and Inspection ready – all in one to help you face fiber network testing challenges.

Truly hand-held - Compact, rugged product packaging is designed for outside use and cramped inside plant environments.

International Language Support - User interface available in English, Chinese, Japanese, French, German, Italian, Polish, Portuguese, Spanish and Turkish

Data Storage and Reporting Capabilities (TRM™ 2.0) - Acceptance reports generated using TRM 2.0 can include OTDR traces with summary and event information, pass/fail indication, event maps, loss/power measurement tables and end-face images.

Please click to learn more about TRM 2.0.

Macro/Microbend detection - The detection helps technicians identify installation problems. Excessive bends or stress on fibers will show up as increased attenuation at higher wavelengths. These bends or stresses are indicated on the Event Table with a special icon.

Bi-directional trace analysis -- OTDR splice measurements on networks containing different fiber type may result in 'gainer' and excess loss splices where mismatched fibers are spliced.  More accurate splice loss measurements are obtained by averaging OTDR traces obtained in each direction.  M310 Advanced Analysis option integrates bi-directional averaging within the OTDR.

Ordering Information

The M310 is offered in 2 models: single-mode and QUAD multimode/single-mode. (See data sheet for ordering information).

For your convenience, AFL also provides prepaid calibration plans and calibration plus extended warranty plans. For details see the Prepaid Calibration Plans page.

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