AQ7280 Modular Optical Time Domain Reflectometer


This firmware is intended to upgrade the AQ7280 to the latest version.

How to check the current firmware version

Press the power button, and then tap the product information icon.

Revision History

Version Release Date Content
2.07 Mar 31,2020

Improved function

  • Improved the sensitivity of the touchscreen.
2.06 Oct 10,2019

Added functions

  • SOR / PDF file simultaneous save function.
  • Supports 6-core multi-fiber measurement.
2.05 Jun 11,2018

Improved functions

  • Applicable inspection probe for Pass / Fail judgment (/FST option) of fiber inspection function.
    (Corresponds to each product ID of the inspection probe DI-1000 series manufactured by Lightel)
  • Switching of graph display unit in OPM logging function.
  • Saved data format in OPM logging function. Modification of unit.
  • Folder copy function in file operation menu.
  • Recalculation of total loss and total reflection attenuation in event editing.

Previous version 



Please read Software Agreement carefully before downloading.


Version 2.07
Release Date Mar 31, 2020
File Name 7.4 MB


Type Firmware* Registration is required to download.


* Software Agreement
  • The property rights, proprietary rights, intellectual property rights, and all other rights associated with the software are held by Yokogawa Electric Corporation.
  • Under no circumstances is any dumping, reverse compiling, reverse assembly, reverse engineering, or any other kind of alteration or revision of this software allowed.
  • This software is offered free of charge, but no unlimited warranties are made against any defects whatsoever.
  • Also, Yokogawa may not be able to accept inquiries regarding repair of defects in or questions about this software.
  • The contents of this software are subject to change without prior notice as a result of continuing improvements to the software\'s performance and functions.
  • Yokogawa bears no liability for any problems that may occur during download or installation of this software.
  • Use of the Yokogawa Web site is at the user\'s own risk.
  • Any parties contributing to the creation or distribution of the contents on the Yokogawa Web site shall bear no responsibility whatsoever for any damages occurring as a result of the use of said contents.

Downloading of the software indicates acceptance of the software agreement.

Related Products & Solutions

AQ7280 Modular Optical Time Domain Reflectometer

Responding to the growing needs for reliable and ease-of-use field test instruments for installation and maintenance of fiber optic networks, Yokogawa AQ7280 Optical Time Domain Reflectometer (OTDR) is designed to empower field technicians to make fast and precise measurements with confidence.The AQ7280 satisfies a broad range of test and measurement needs in analyzing optical networks from access to core.