MPO optical loss test kit


PXM/LXM - MPO optical loss test set (OLTS)

Tier-1 MPO-12 fiber certification power meter and light source kit with fastest loss and length measurement based on certification standards for single or multimode fibers.

Key Features

Leading FasTesT™ performance: test MPO-12 fibers at 2 wavelengths in just 1 second

Dual wavelength on light source

Insertion loss measurement

Polarity type validation

Up to 25 km in length measurement

On-board certification standards with dynamic loss calculator

In-line visual fault locator (VFL) for fiber tracing on LXM

Comprehensive results combined on one page

PXM with contactless connector

4-inch color touchscreen

Native MPO-12 connector on devices

Standard 3-year calibration interval and 3-year warranty—exclusive to EXFO!


Data centers

Central offices



Faster-than-ever MPO testing

The PXM/LXM combo is an MPO tester designed to efficiently certify a large number of MPO links for single or multimode fibers. It tests MPO-12 fibers at 2 wavelengths in just 1 second, the fastest test time in the industry. The FasTesT™ feature provides loss per channel at the 2 selected wavelengths, as well as the length and polarity type of the link under test—all at the press of a button.

Pass/fail results all on one page

Find the most important results together on one screen! Complete jobs faster and transition to the next ones with confidence.

  • Global pass/fail status and pass/fail per fiber with length measurement
  • Insertion loss per wavelength
  • Polarity type (A, B, C or U) with graphical representation
  • Pass/fail on actual polarity type versus expected polarity type
  • Full details available on FasTesT results and fiber results page

Test faster. Test more.

Being the world’s n.1 provider of fiber optic test solutions means we build in features that make testing more intuitive and efficient.

Large, hybrid contactless connector: PXM accommodates both APC and UPC connectors to support multimode and singlemode link testing. Large core detector allows the PXM to give precise measurements with low uncertainty.

Generate reports with FastReporter: PXM power meter measurements for power or loss can be processed directly by FastReporter.

Smartphone-grade touchscreen: PXM and LXM have integrated high‑quality capacitive color touchscreens designed to be visible in full sun or dark areas, from any angle.

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