AQ1200 Compact Optical Time Domain Reflectometer


This firmware is intended to upgrade the AQ1200 to the latest version.

How to check the current firmware version.

  • Press [SETUP] key and [Product info.] software key to display the firmware version.

In case updating firmware from R1.11(or less) to R1.12(or later), internal memory must be formatted before update.
Please do the file backup and memory format as following procedure before update.

  1. File backup:
    - File backup to PC with USB storage function:
    1. Turn on AQ1200
    2. Select [OTDR] by using [Enter] or rotary key
    3. Press [SETUP]
    4. Press [F4] (System setup)
    5. Move the cursor to [USB]
    6. Select [Storage] by using [Enter] or rotary key
    7. Connect AQ1200 to PC with USB cable
    8. Copy the file in AQ1200 to PC by PC operation.

    - File backup to USB memory:
    1. Turn on AQ1200
    2. Select [OTDR] by using [Enter] or rotary key
    3. Press [F5] (FILE)
    4. Press [F1] (Action)
    5. Select [Copy] or [Copy Folder] by using [Enter] or rotary key
    6. Copy the file to USB memory.

  2. Format the internal memory:
    1. Turn on AQ1200
    2. Select [OTDR] by using [Enter] or rotary key
    3. Press [F5] (FILE)
    4. Press [F1] (Action)
    5. Select [Format] by using [Enter] or rotary key
    6. Press [F5] (Format)

Revision History

Version Content
R03.03 [Improved function]
  • The quality of still picture using Fiber Inspection Probe DI-1000
[Added function]
  • Reference value setting for each wavelength in optical power meter
  • Launch fiber setting in event analysis function
  • Addition of Pass / Fail conditions (dB/km, Total loss) in event analysis function
  • Contrast function using Fiber Inspection Probe DI-1000
R03.02 [Improved function]
  • Fiber Inspection Probes
    Added support for DI-1000 (Lightel.Inc).
[Added function]
  • Operation Restrictions function
R03.01 [Improved function]
  • Improved the Invent detection.
[Added function]
  • Added support for the /SPM, /SLS or -HM options.

Previous version 



Please read Software Agreement carefully before downloading.


Version R03.03
Release Date Mar 27, 2017
File Name 4.84 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 Test & Measurement 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.
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  • Note that you must agree to the contents of “Software License” for the software that encloses or displays the “Software License” as the conditions of use.
  • This software product may contain open source software (hereafter referred to as OSS). License terms appropriate for each OSS component are applicable in place of the terms of this license. If there is a discrepancy between the terms of the OSS license and the terms of this license, the license terms of the corresponding OSS take precedence.

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Related Products & Solutions

AQ1200 Compact Optical Time Domain Reflectometer

The AQ1200 Multi Field Tester OTDR is a compact and lightweight handheld OTDR optimized for the installation and maintenance of optical fiber cables. Designed with ease of use in mind to simplify field testing, improve work efficiency and ensure qualify results. Seven models are offered, each with unique wavelength(s) based on their specific application.