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UNIT 3

CERTIFICATION  METER

Certification Meter allows the user to store data points for the purpose of certifying fiber links against known industry cabling standards; 
EIA/TIA 568, ISO/IEC 11801, and Gigabit Ethernet are some examples.   A user-friendly link configuration wizard is provided to enter 
fiber link parameters, which is used to calculate reference values for easy PASS/FAIL readings.

The Fiber OWL is capable of certifying up to 900 data points with user-configurable fiber labels, and can certify eight separate fiber 
links against one of ten pre-defined standards or two user-defined standards.

Data points are downloaded into our free OWL Reporter Windows-compatible software for organizing data points and printing 
professional-looking certification reports.

Overview

MAIN MENU

<1>LINK WIZARD

<2>FIBER LINK MENU

<3>STORED READINGS

<4>METER PROPERTIES

<5>TAKE READINGS

Operation

1)  Press the       button.

2)  After a few seconds, you will be prompted to choose an operating mode. When “CERTIFICATION METER” is highlighted,
press       to select.

3)  You are now at the MAIN MENU.  All operations in CERTIFICATION METER branch from this menu.  

NOTE: you may also

press        at any time to enter the MAIN MENU.

ON

F2

Power On

MENU

Fiber Certification

NOTE:   Any time one of these fiber characteristics changes, a new link must be configured.

The link wizard uses these characteristics to calculate a reference value which all fibers included in the link are measured against.

1)  Press       to start the LINK WIZARD.

2)   At the STORED LINKS menu, highlight the link name you wish to use.  The currently loaded link is denoted by an asterisk.   If you have 
already configured a link, continue to Step 3.   Otherwise, press             to edit the selected link.

EDIT LINK

2a)  Give the link a descriptive name.  Press       to edit the name.  Press       to continue.
2b)  Enter the date of the test.  Press       to enter the date.  Press       to continue.
2c)   When the name and date have been entered, press             to return to the STORED LINKS menu.

3)

Press            to load the selected link.   If the CONFIGURE LINK screen appears, choose option             .   The other options are for 

advanced users only.  For instructions on options 2 & 3, see the section on CONFIGURE LINK from the FIBER LINK menu.

4)

Scroll through the list of standards, and highlight the standard you wish to use.  If you wish to use a pre-defined standard, 

1

ABC

F3

F1

DONE

DONE

DONE

F2

3-1

The following steps outline the procedure for setting up the Fiber OWL for fiber 
certification.   This process begins with running the Link Wizard.

Definition of a link:

   In the Fiber OWL, a link is defined as any number of fibers, or fiber 

runs, that all have the same set of fiber characteristics from one end to the other; typically 
begin together and end together; and follow the same pathway.  These characteristics 
include fiber length, fiber type, connector loss, and splice loss, as well as the cabling 
standard being used for fiber certification.

F2

1

ABC

Summary of Contents for Fiber OWL II+

Page 1: ... OWL II Fiber OWL IIC Optical Power Meter Operations Manual Firmware Version 2 0 OWL Part FO 2 FO 2C February 5 2002 O W L TM ptical avelength aboratories MANUFACTURER OF QUALITY OPTICAL FIBER TEST EQUIPMENT ...

Page 2: ... 4 Store Data Points 3 4 Fiber Link Menu 3 5 Stored Readings Menu 3 6 Option 1 VIEW EDIT PRINT 3 6 Option 2 PRINT RANGE 3 7 Option 3 DELETE RANGE 3 7 Option 4 DOWNLOAD DATA 3 7 OWL Reporter Download 3 7 Manual Download 3 7 Option 5 ERASE ALL DATA 3 8 Meter Properties Menu 3 8 Option 1 Set Company Information 3 8 Option 2 Adjust LCD Contrast 3 8 Option 3 Set a Custom Wavelength 3 8 Option 4 Set Cus...

Page 3: ...so be used as verification of compliance to performance standards in case a question comes up about the quality of an installation These signed documents cover the installer from liability provided that the link meets specified performance standards Our optical fiber power meters are designed with these standards in mind because we understand the importance of qualifying your fiber installations w...

Page 4: ...iber cable has been installed and terminated it must be tested to determine if the fiber is installed according to standards and specifications A comparison of the actual power measurement and the reference value determines if the installation will PASS or FAIL Fiber Network Certification Using Various Cabling Standards The Fiber OWL uses a loss wizard that is used for fiber certification against ...

Page 5: ...al character This is accomplished by pressing and holding the key until the desired character appears When the key is released the cursor automatically advances to the next position NUMERIC FIELDS These fields are for numeric input only e g fiber length user defined reference values etc The cursor will automatically advance once a number key is pressed EXCEPTION some numeric operators may be requi...

Page 6: ...w 20 45 _____________________ UNITS ZERO WAVE dBm ABS 82 68 850nm Operation 1 Press the button 2 After a few seconds you will be prompted to choose an operating mode When SIMPLE METER is highlighted press to select 3 You are now ready to take fiber measurements ON F2 Power On dBm ABS dB REL µW ABS 850nm 980nm 1300nm 1310nm 1480nm 1550nm Power Measurement Power Units Temperature Battery Life Wavele...

Page 7: ...ro the meter by pressing Operation cont Power Units Wavelengths Zeroing the Fiber OWL in Simple Meter mode The Fiber OWL is capable of displaying power readings in three different units The user may toggle through these units by pressing dBm ABS This is an absolute ABS power measurement It shows how much optical power is being received by the photodetector in decibels referenced to a milliwatt dBm...

Page 8: ...o toggle the Auto Shutdown feature between ON and OFF By default Auto Shutdown is ON and is approximately 10 minutes TEST SERIAL PORT This option is used to diagnose problems with the serial cable included with the meter If the meter cannot download to the PC this option tests the meter s serial port and download cable If these tests run okay there may be a problem with the PC s COM ports NOTE set...

Page 9: ...e characteristics to calculate a reference value which all fibers included in the link are measured against 1 Press to start the LINK WIZARD 2 At the STORED LINKS menu highlight the link name you wish to use The currently loaded link is denoted by an asterisk If you have already configured a link continue to Step 3 Otherwise press to edit the selected link EDIT LINK 2a Give the link a descriptive ...

Page 10: ...er of splices must be the same for both wavelengths NOTE Make sure that the source is stable by allowing it sufficient time to warm up NOTE In order to maintain the integrity of the reference you are setting it is critical to leave the patch cord connected to the light source Disconnection of a patch cord from a light source will invalidate your reference due to the inaccuracies in aligning the li...

Page 11: ...he user will be asked to verify the setting of a wavelength reference 13a If a reference has been previously set for this link the user will be prompted to replace the old value with the recently set reference 13b If the chosen standard allows a second wavelength the user will be given the option of setting a reference for that wavelength 14 The user will be given the option to either begin storin...

Page 12: ... There is no need to enter the fiber number e g Fiber01 Fiber02 etc The Fiber OWL automatically appends a two digit auto incremented number to the end of the fiber label you enter In our example for Patch Panel A the data points would begin with PP A00 and end with PP A23 If you wish to have your data points start at 01 save dummy data for data point 00 then delete it once it is downloaded into OW...

Page 13: ...ER LINK 2 the fiber link chosen during Link Wizard NAME the fiber label chosen in step 2 with the two digit auto increment number appended at the end If you are storing data for multiple wavelengths this label applies to all FIBER LINK 2 NAME FBR 00 TYPE 62 5um MM dBm 22 05 850nm DATA PRINT EDIT NAME SAVE _____________________ FIBER LINK MENU Option 2 from the MAIN MENU takes the user to the FIBER...

Page 14: ...y far the easiest way to manage your data and to format it into a professional looking report The Fiber OWL can also manipulate this stored data without the use of OWL Reporter Stored readings can be dumped out to the on board serial port to a PC terminal program or printed to a serial printer STORED READINGS 1 VIEW EDIT PRINT 2 PRINT RANGE 3 ERASE READINGS 4 DOWNLOAD DATA BYTES FREE 1792 VIEW EDI...

Page 15: ...DELETE READINGS ACME NAME FBR _____________________ DEL ALL DEL 3 GHI F1 F2 F3 Selecting from the STORED READINGS menu brings you to the DOWNLOAD OPTIONS screen This screen allows you to select the method of data download USE OWL REPORTER this option allows the user to download data points into our OWL Reporter certification report software Follow the directions on the screen for OWL Reporter down...

Page 16: ...wavelength has been configured AUTO SHUTDOWN Press to return to the MAIN MENU allows the user to toggle the Auto Shutdown feature between ON and OFF By default Auto Shutdown is ON and is approximately 10 minutes TEST SERIAL PORT This option is used to diagnose problems with the serial cable included with the meter If the meter cannot download to the PC this option tests the meter s serial port and...

Page 17: ...of sheets of graph paper together to plot these power functions by hand So scientists came up with a little trick to squeeze the graph down to a more presentable size The trick uses logarithms logs Logs are fairly simple most of us have already encountered logs in pre algebra class They didn t seem so important then but they are important to the understanding of decibels Logs expressed in Base 10 ...

Page 18: ... dynamic range is 75dB Any power level reaching the detector that is greater than 5 dBm is too powerful to accurately measure Likewise any power level below 70 dBm will be too weak to be sensed Power levels within the dynamic range produce acceptable readings It is interesting to note that the Fiber OWL remains accurate over the upper 96 of the 75 dB dynamic range and then gets progressively worse...

Page 19: ... higher than that of the surrounding cladding Cross Connection A connection scheme between cabling runs subsystems and equipment using patch cords or jumpers that attach to connecting hardware on each end Decibel dB In fiber optics a standard logarithmic unit for the ratio of the power that was received over the power that was originally sent dBm Decibel referenced to a milliwatt dBµ Decibel refer...

Page 20: ...on Loss The loss of power that results from inserting a component such as a connector or splice into a previously continuous path Interconnection A connection scheme that provides for the direct connection of a cable to another cable or to an equipment cable without a patch cord or jumper Intermediate Cross Connect IC A cross connect between the main cross connect and the horizontal cross connect ...

Page 21: ...A measure of the extent of a spectrum For a source the width of wavelengths contained in the output at one half of the wavelength of peak power Typical spectral widths are 20 to 60 nm for an LED and 2 to 5 nm for a laser diode Splice An interconnection method for joining the ends of two optical fibers in a permanent or semi permanent fashion Step Index Fiber An optical fiber either multi mode or s...

Page 22: ...s Appendix D Fiber OWL Specifications Appendix E Warranty Information Your Fiber OWL comes standard with a one year limited warranty which covers the meter against manufacturing and assembly defects Any returns not related to these types of defects are not covered under the warranty Call tech support at 262 473 0643 with any warranty concerns you may have Over time the meter may lose its accuracy ...

Page 23: ... and will begin to corrode the components 99 Isopropyl alcohol is very flammable so additional care must be taken when cleaning the detector 99 Isopropyl alcohol can be purchased at your local drug store 2 Whenever possible use specially designed 2 5mm cleaning sticks to clean the detector These do not require alcohol and do not damage the insides of the connector Do not used sticks or swabs of an...

Page 24: ...nm SC Single Mode Laser Light Source 1310 OWL 1310nm FC Single Mode Laser Light Source 1310 OWL 1310nm Universal Single Mode Laser Light Source 1550 OWL 1550nm SC Single Mode Laser Light Source 1550 OWL 1550nm FC Single Mode Laser Light Source 1550 OWL 1550nm Universal Single Mode Laser Light Source LO 1ST LO 1SC LO 1FC LO 1U2 5 LO 1310ST LO 1310SC LO 1310FC LO 1310U2 5 LO 1550ST LO 1550SC LO 1550...

Page 25: ...em to operate using the specified electronics Operating Wavelength Appendix I Link Budget Calculation Worksheet Total Cable Distance km Individual Fiber Loss at operating wavelength dB km Total Fiber Loss dB Individual Connector Loss dB Number of Connector Pairs Total Connector Loss dB Individual Splice Loss dB Number of Splices Total Splice Loss dB Other Components dB Total System Attenuation Fib...

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