FIBER OWL 4 BOLT FIRMWARE UPGRADE
The firmware for Fiber OWL 4 optical power meters can be upgraded FREE OF CHARGE by downloading the "FLASH" file listed below.

PLEASE READ ANY SPECIAL INSTRUCTIONS BEFORE UPDATING THE FIRMWARE IN YOUR FIBER OWL 4.
FIBER OWL 4 SERIES OPTICAL POWER METERS (valid for firmware versions 4.10 and later)
*** CRITICAL UPDATE ***

*** UPDATING TO FIRMWARE VERSION 4.71 IS HIGHLY RECOMMENDED ***

Date: September 18, 2018
Firmware version 4.71 includes two updates: 1) fixes intermittent power cycling issue during length measurement; and 2) allows the user to replace the fiber length stored within the currently active Stored Link without having to re-run the Link Wizard

Previous updates:
  • Modify Link Wizard parameters after test readings have been stored without having to re-set wavelength references (with the exception of changing the cabling standard, which requires re-setting references).  Note: modifying the Link Wizard paramters does not affect the test readings themselves.
  • Streamlined the Link Wizard setup process by clarifying the Test Date entry screen and the Length entry screen.
  • Improved functionality concerning the storing of data points. Users may now store data starting at any number, rather than always starting at "1".
  • Improved functionality to the Link Wizard, which makes setting a dual-wavelength certification reference more intuitive and user- friendly.
  • Correction to an issue in version 4.55, 4.56, and 4.57 where readings may be incorrectly displayed as PASS when they may be a FAIL, in some application standards such as Ethernet and FTTH. It should be noted that stored data is accurate and correctly displayed in OWL Reporter after downloading to the PC.
  • Link certification support for 10-Gigabit Ethernet networks.
  • Improved functionality of the manual reference link budget method.
  • Improved dual-wavelength measurement display.
Click the links below to download the upgrade program, firmware .hex file and upgrade instructions:

Fiber OWL 4 firmware upgrade instructions (PDF; 1.16 MB)

STEP 1: Download and install Fiber OWL 4 firmware upgrade program (MSI; 1.5MB)

STEP 2: Download (Right click, Save As...) Fiber OWL 4 firmware file (v4.71) (HEX; 144 kB)
-- it is recommended to save this .hex file in an easily remembered location

OPERATIONS GUIDE: Some firmware updates change the appearance of the Fiber OWL 4 screens. The current Fiber OWL 4 operations guide will show these changes. Click here to download the updated Fiber OWL 4 operations guide.

OWL REPORTER DOWNLOAD SOFTWARE: The latest version of OWL Reporter is required to take advantage of the improved functionality of manual reference link budgets. Click here to download, or click here to visit the OWL Reporter download page.
NOTE: using this "FLASH" file for Fiber OWL 4 firmware versions released prior to 4.10 will result in the meter losing its serial number and user settings. Meters before 4.10 will need to be sent to OWL for updating. Contact OWL at 262-473-0643 for more information.

NOTE: starting with firmware version 4.41, the bottom row of keys on Fiber OWL 4 series optical power meters have been re-mapped. If upgrading from version 4.40 or earlier, a new keypad will be required. For instructions on the new keypad mapping, please download the latest Fiber OWL operations guide. Please contact OWL at 262-473-0643 for more information about these new keypads.