Do you own GN Nettest, Corning and Laser Precision units which don’t quite meet your needs today? Have Legacy Fiberoptics breath new life into those machines with a variety of upgrade services which can improve user experience and testing capabilities.  Our most popular upgrade is converting the GN Nettest CMA 4000 OTDR memory from floppy disk to Compact Flash memory cards.  Not only does this upgrade create additional storage capacity for the CMA 4000, it also allows for easy test results transfer using a USB tethered Compact Flash card reader.   Don’t let that unit just sit on the shelf collecting dust.  Contact our service team to get your units upgraded today.

Popular Upgrades Include:

  • Laser Conversions
    Removing the Compact Flash memory card from  a recently upgraded CMA 4000 OTDR is easy.

    Removing the Compact Flash memory card from a recently upgraded CMA 4000 OTDR is easy.

  • Floppy Disk to Compact Flash Memory Upgrades
  • Adding Light Source/Power Meter or VFL options
  • Converting CMA 4000 LCD screens from black-and-white to color
  • Performing Engineering Change Orders
  • Software Updates

OEM Parts

We stock and use Original Equipment Manufacturer (OEM) parts and accessories on all of our repairs.  Since we only use OEM parts, you can be sure that our upgrades and repairs are of the highest quality.

Policies: Legacy Fiberoptics’ policy is to provide our customers with the shortest turnaround time possible, cost-effective repair solutions using OEM parts, free evaluations, prompt customer support, and complete traceability for their repair or service. We offer these services on a best effort basis, which means we will do everything in our power to get the customer what they need.


To begin the Return Material Authorization (RMA) process please click here.