OWL DO2-85sc User manual

Operations Guide
Dual OWL Series Multimode Light
Sources
Date: March 21, 2019
Version 3.0
Dual OWL Series
Operations Guide
Multimode Light Sources
Optical Wavelength Laboratories
5 Commonwealth Ave
Woburn, MA 01801
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

CONTENTS
1.0 GENERAL
2.0 FUNCTIONAL DESCRIPTIONS
3.0 APPLICATIONS
3.1 PRECAUTIONS
3.1.1 Safety
3.1.2 Operational
3.1.3 Connector
3.2 REQUIRED ACCESSORIES
3.2.1 Cleaning Supplies
3.2.2 Patch Cords
3.2.3 Optical Fiber Adapters
3.3 TYPICALAPPLICATIONS
4.0 MAINTENANCE / CALIBRATION
5.0 WARRANTY
6.0 SPECIFICATIONS
FIGURES
Figure 1 - Dual OWL Multimode Light Source
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1.0 GENERAL
ThankyouforyourpurchaseofanOpticalWavelengthLabs(OWL)DualOWLseriesmultimodelightsource.
DualOWLserieslight sourcesare LED-basedlight sourcesdesigned to testmultimode fiberoptic links.
TheLEDindicatorsshowwhethertheunitisONorOFF,andwhetherthebatteryhasenough
power to maintain its calibrated output power. Dual OWL series light sources contain stabilized 850 and/or
1300nmLEDsthatconformstointernationaltestingstandards,andsingle-waveversionsmayincludeaVFL.
EachDualOWLserieslight sourcecomeswithaprotectiverubber boot, CD-ROM basedoperationsmanual,
andUSBbatterychargerandcable.
Typicalusesincludetelecommunicationsnetworks,datanetworks,cabletelevision,andindustrialequipment
control.
The source is simple to operate with two buttons: one for controlling power and one for selecting the output
port. LED indicators highlight the selected port and verify that battery power is sufficient to maintain the
calibratedoutputpower,andwavelengthisindicatedby7-segmentLEDdisplay. The
LED outputs are temperature compensated and are calibrated to couple -20dBm of optical power into
multimodefiber.
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Figure 1 - Dual OWL
Multimode Light Source
2.0 FUNCTIONAL DESCRIPTIONS
1. PortA-Houseseither850nmor650nmVFL.
2. USB Charger Port - Allows for charging internal Lithium
Polymerbattery.
3. PortB-either1300nmor650nmVFL.
4. PortA Indicator LED - Indicates the ON/OFF status of the
sourceinstalledinPortA.
5. Port B Indicator LED - Indicates the ON/OFF status of the
sourceinstalledinPortB(ifinstalled).
6. Charger Indicator LED-Indicatesthe status ofthecharger
port.
7. PowerButton-PowerstheunitONorOFF.
8. Port Select Button - Switches the unit between Port A and
PortB.
NOTE: During normal operation, if the indicator LEDs are not lit,
this indicates that the battery has insufficient power to provide
accuratereadingsandmustberecharged.
NOTE: Single wavelength versions (850nm only or 1300nm only)
willonlyhaveasingleopticalport.
13
2
4 5
6
78
Model Port A Port B
DO2-85
DO2-85V
DO2-13
DO2-13V
DO2
850nm
850nm 1300nm
1300nm
850nm
–
650nm VFL
–
650nm VFL 1300nm

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3.0 APPLICATIONS
3.1 PRECAUTIONS
3.1.1 Safety - Caution must be exercised when working with optical equipment. Most transmission
equipment and light sources use light that is invisible to the human eye. High energy light is potentially
dangerous,and cancause serious,irreparabledamage tothe eye. Thus,it isrecommended to look
intotheconnectorportofalightsourceortheendofafiber.
3.1.2 Operational- Inorderto ensureaccurateand reliablereadings, it isvitally important toclean ferrules
containing optical fibers and optical connector ports. If dirt, dust, and oil is allowed to build up inside
connector ports, this may scratch the surface of the LED diode, producing erroneous results. Replace dust
capsaftereachuse.
3.1.3 Connector - Do NOT insertAPC (Angled Physical Contact) connectors into the optical ports on the
DualOWLasthismaydamagethelightsourceinsidetheport.
3.2 REQUIRED ACCESSORIES
3.2.1 CleaningSupplies-Itisrecommendedtocleanfiberferrulesbeforeeachinsertionwith99%orbetter
isopropylalcohol anda lint freecloth, ora specialin-adapter ferrulecleaner. Acan ofcompressedair should
beavailabletodryofftheconnectorafterwiping,andtoblowoutdustfrombulkheads.
3.2.2 PatchCords-PatchcordsmaybeneededtoconnecttheDualOWLserieslightsourcetothesystem
undertest. Theconnectorstylesonthepatchcordmustmatchthetypeonthelightsourceandthetypeofthe
systemundertest.
3.2.3 OpticalFiberAdapters-Opticalfiberadaptersareusedtoconnecttwoconnectorizedfiberstogether,
andmaybenecessarytoadaptyourpatchcordstothesystemundertest.
3.3 TYPICALAPPLICATIONS
Dual OWL series multimode light sources can be used as diagnostic and measurement tools of optical
transmission systems and fiber optic links. These applications can be found in several industries, including
premise,LAN,CATV,andTelco.
Dual OWLseries multimode light sources are designed to emit a temperature-stabilized source of light to be
used for optical loss measurement. The optical power emitted by the light source serves as an optical
reference, which is otherwise known as the “zero” point when a power meter is “zeroed”. Optical loss
measurements are useful for measuring the attenuation, or loss, of a fiber link. The loss value can then be
compared to a pre-calculated link budget, which is used to determine if the fiber link will operate within the
parametersofthetransmissionequipment.
Theformulaforcalculatinglossinafiberlinkis: L = P - P
a r
where Lis the amount of optical loss in dB, Pis the absolute power in dbm, and Pis the reference power in
a r
dBm.
Optical loss measurements can also be used for fiber optic link certification. Link certification is a process
where optical loss measurements are compared to a link budget calculated using fiber optic cabling
standards.
NEVER

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4.0 MAINTENANCE / CALIBRATION
4.0.1 Repairofthisunitbyunauthorizedpersonnelisprohibited,andwillvoidanywarrantyassociatedwith
theunit.
4.0.2 For accurate readings, the optical connectors on Dual OWLseries light sources and the connectors
onthepatchcordsshould be cleanedpriortoattaching them toeachother. Minimizedust and dirt buildupby
replacingthedustcapsaftereachuse.
4.0.3 ItisrecommendedtohaveOpticalWavelengthLaboratoriescalibrateDualOWLserieslightsources
onceperyear.
5.0 WARRANTY
5.0.1 Optical Wavelength Labs products have a two-year factory warranty, which covers manufacturer
defectandworkmanshiponly,validfromthedateofshipmenttotheoriginalcustomer.
5.0.2 Productsfound tobe defective withinthe warranty willbe eitherrepaired orreplaced, at theoption of
OpticalWavelengthLabs.
5.0.3 Thiswarranty doesnotapplytounitsthathavebeenrepairedor alteredbyanyoneotherthanOptical
WavelengthLabs,orhavebeensubjectedtomisuse,negligence,oraccident.
5.0.4 InnowaywillOpticalWavelengthLabsliabilitiesexceedtheoriginalpurchasepriceoftheunit.
5.0.5 Toreturnequipmentunderwarranty,pleasecontactOpticalWavelengthLabsforaRMAnumber. To
ensure quick turnaround, please include a short description of the problem and a phone number where you
canbereachedduringnormalbusinesshours.
6.0 SPECIFICATIONS
Conforms to the Harmonized European Standards EN 61326-1 and EN 61010-1.
Launch Method LED
Connector SC
Center Wavelength (850nm) 850±20nm
Center Wavelength (1300nm) 1290nmmin
1350nmmax
Spectral Width (FWHM; 850 nm) 35nm
Spectral Width(FWHM; 1300nm) 170nm
Output Power -20.0dBm
Initial Accuracy 0.1dB
Fiber Type multimode
Battery Life upto120hrs(LithiumPolymer)
Battery Capacity Display Yes
Operating Temperature 0to55°C
Storage Temperature 0to75°C
Dimensions 2.75”x4.94”x1.28”
Weight 154g
Optional VFL Specifications
Wavelength 650nmLaser
Output Power 1mW(0dBm)
Operating Modes CW,Modulated
Connector SC