FIBER OWL 4 SERIES OPTICAL POWER METERS (valid for
firmware versions 4.10 and later)
*** CRITICAL UPDATE ***
*** UPDATING TO FIRMWARE
VERSION 4.64 IS HIGHLY RECOMMENDED ***
Date: March 20, 2008
Firmware version 4.64 adds improved
functionality to the Link Wizard, which makes setting a dual-wavelength
certification reference more intuitive and user-friendly.
This update also includes a
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.
Other improvements include:
Click the links below to download the upgrade
file and upgrade instructions:
Fiber OWL 4 firmware upgrade file to firmware
version 4.64
(MSI; 1.5MB)
Fiber OWL 4
firmware upgrade instructions
(PDF; 367 KB)
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
(version 2.9.1 or later) 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.