TEST PROCEDURES
Checking Fiber OWL 4 Series Optical Power
Meters for Proper Operation
USING A DUAL OWL MULTIMODE LIGHT SOURCE
STEP 1
- Connect Fiber OWL 4 and Dual OWL
Connect the Fiber OWL 4 and Dual OWL together with an orange
multimode patch cable as shown below.
STEP 2 - Power ON the Fiber OWL 4
Press
to power on the Fiber OWL 4.
After a few seconds, the
OPERATING MODE screen will
appear on the Fiber OWL 4
display, with SIMPLE METER
being highlighted as shown at
right.
STEP 3 - Enter SIMPLE METER
Press
on the Fiber OWL 4
to enter SIMPLE METER.
The display should read
‘
UNDER
’ as shown at right.
By default, the wavelength will
be set to
‘850nm
’
and the
measurement units will be set to ‘
dBm
’.
NOTE: it is recommended to thoroughly clean and inspect all
patch cord connectors before making any connection.
F2
NEXT
SELECT
CERTIFICATION METER
TECH SUPPORT
OPERATING MODE
_____________________
SIMPLE METER
82
98%
UNITS
ZERO
WAVE
850nm
dBm
_____________________
UNDER
STEP 4 - Power ON the Dual OWL
Press
to power on the Dual OWL.
The 850nm indicator LED
should now be lit as shown at
right.
STEP 5 - Check optical power
The power reading that appears
on the Fiber OWL 4 display will
depend upon cable type.
Consult the table below for a list
of acceptable power readings.
STEP 6 - Replace the patch cable
The easiest way to troubleshoot low power levels is to try another
patch cable. Over time, patch cables can wear out or become
damaged the more they are used for optical loss testing.
Replacing the patch cable usually fixes the problem.
STEP7 - Clean patch cables and optical ports
If the problem still exists after patch cable replacement, there
may be some debris, such as dust, dirt, or finger oil, that has
collected on the connector endface or in the equipment optical
ports.
Thoroughly clean and inspect the optical ports of the Fiber OWL
4 and the Dual OWL, as well as the fiber connector endfaces,
according to the brochures that have been included with this kit.
Several cleaning cycles may be required.
If the power level is still to low, even after a thorough cleaning and
inspection and patch cable replacement, contact OWL technical
support at 262-473-0643 for more information.
NOTE: the following steps are only required if the optical power
reading on the Fiber OWL 4 is too low.
82
98%
UNITS
ZERO
WAVE
850nm
dBm
_____________________
20 00
Core Size
62.5/125 µM
50/125 µM
Replace at
-21.00 dBm
-24.00 dBm
Acceptable Power Level
-19.0 to -21.0 dBm
-22.0 to -24.0 dBm
CHECK MULTIMODE REFERENCE CABLES
WITH A DUAL OWL MULTIMODE LIGHT SOURCE
DUAL OWL
connected to
850nm port
LIGHT SOURCE CONNECTOR
PORT NOTES:
– CONNECTOR TYPE MAY VARY
– DO NOT INSERT ANGLED
PHYSICAL CONTACT (APC)
CONNECTOR
