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OTDR User`s Manual

1. sess 21 3 4 3 2 12 Reflection Threshold Configuration eese 22 3 4 3 2 13 End Threshold Configuration eese 23 34 3 2 14 Delete Piles 5 Ret Oe he etd enr eer tides 23 3 44 32 15 Time Configuration sssrin eana grece tegens 24 3 4 3 2 16 Auto off Configuration cessere ener 24 3 4 3 2 17 Language Configuration essere 25 3 4 3 2 18 Contrast Adjustment of LCD Display eese 25 3 4 3 2 19 Color Mode Setting eese 26 3 4 3 2 20 Default Set Innere memet im eere reris 26 3 4 3 221 Help tot ete en rete e tette ete nemen 27 35 Battery Recharge Status eiertteeeese ene et 29 Trace Measurement and Processing of Existing Traces eere 30 4 Instructions on GUT iue ttt it i Rin i ER ER Rin 30 4 2 Trace Measurement of OTDR eonrnenrnonrnonrnonrnenrnenrnenrnenrnenrnensnenenenenensnensnensnsnsnensnsnsner 31 4 2 1 Trace Measurement Connect Optical Fiber eeeeeeeeeeeres 31 4 2 2 Trace Measurement Parameter Configuration creer 31 4 2 3 Trace Measurement Auto snesnenrsnesnesvenvenesnesnennenesnesnennennsnesnennennsnesnesnennennsnesee 31 4 2 4 Trace Measurement Manual eere eee esee eee ee eene tn natns tosta enata son suatn 33 4 2 5 Trace Measurement Reasons of Measurement Failures
2. 4 eerie eese eese eese tenens tins tse tnsstnato 11 3 4 2 1 Measurement Trace Parameters rrrnrrrrrnnnrrrronnvrrrnrnnrrnrnrnnrnerennnrnrrennnnnsnnnn 11 3 4 2 2 Events Lasts 26 ote e cavere ore e oit iv stress 12 3 4 2 3 Information of Marker A B rrnrrrrronnrrornnnnrrnrennvrrrnennnrnrnrnnrnnrennnrnnnnnnnnesnnnn 13 3 4 2 4 Information Of Fiber sess eene enne enne eene 14 3 4 3 Menu Bar and Window of OTDR eere eee eese esee enses etse tnaetnann 14 3 4 3 1 Menu Bar and Icons of OTDR errrrnnnrroronnnrrnronnnrnrnennnrnrnnnnvnerennnrnsnennnnnennns 14 3 4 3 2 Parameter Configuration on OTDR Menu Bar sees 15 3 4 3 2 Definitions of Measurement Parameters sese 16 3 4 3 2 2 Range Configurations niyii naien ii e ee aaia 16 3 4 3 2 3 Pulse Width Configuration esee 17 3 4 3 2 4 Average Time Configuration sse 18 3 4 3 2 5 Wavelength Configuration eese nennen 18 3 4 3 2 6 Measurement Mode Configuration esee 19 3 4 3 2 7 VFL Configuration For OTDR S20C only sese 19 User s Manual for OTDR 3 4 3 2 8 Length Units Configuration essere 20 3 4 3 2 9 TOR Configuration etnies rette n i kvenrerkedesnnas dekkene 20 3 4 3 2 10 Scatter Coefficient Configuration eese 21 3 4 3 2 11 Non Reflection Threshold Configuration
3. 33 4 3 Information Window 5 reete eterne rA en epo ea teen eee e ento eee aoo 33 4 3 1 Switch between Information Window Items eere 34 4 3 2 Review Event List esneenervsnesnesnenvsnesnenennenesnennennennsnesnennennnnesnesnennsnnsnesnennennsnnsee 34 4 3 3 Review Marker A B Information e eerie eee reete nene en etna tn atn eratn 34 4 3 3 1 Switching between Marker A B cene e cete eee ee eene nee eese te se tasenn 34 4 3 3 2 Information between Marker A B eere eene eene eene tn ennne 34 44 Zoomin Trace Horizontally indeed gets dee eb een 34 4 5 Zoom out Trace Horizontally essent nennen 35 4 6 Zoom in IraceVertically eee eerte etre Nerd ete Fees 35 4 Zoom out brace Vertically ves 2 irt b RR Ero e I HR CER es 35 4 8 Re analyze the tace n iio ieina e PO IEEE EDIDI a 35 NCC 36 4 10 Browse Saved Trace Snina aa a a A EAE 36 431 Upload Saved TraceS nein tete mime ee riens 37 4 12 Alter Measurement in Realtime Testing For OTDR S20C only 38 Maintenance and Calibration eee eere eee esee ettet none tn stata enata stata ena on sta suata 39 Maintenance and Replacing of Batteries srrvrnonnnnrnnrrvvrrnnrnrrvrrvvnrnnrnnrnrevvernernesnrsvvesnesnree 39 Cleaning of Interfaces dr erit tr ee iet rri a ie eri na ier E iaa
4. End Thre 3 00dB Y Delete File x g Time y m d 2005 05 27 10 30 20 r p Auto Off Off Ld r PEPE English s IOK 1 4000 wavelength 155Unm i Figure 3 25 Language Configuration 3 4 3 2 18 Contrast Adjustment of LCD Display c r1 press The contrast of LCD has been adjusted And users can adjust the contrast according to personal visual habits Under parameter configuration use and V to highlight LCD Contrast press 25 User s Manual for OTDR Enter to adjust as shown in Figure 3 26 Press au i to exit VEL Off E i Length Units Meter m E TOR 1 4666 7 Scat Coef 52 1dB an Nrefl Thre 0 20dB T Refl Thre 52 00dB I End Thre 3 00dB t Delete File Time y m d 2005 05 27 10 30 20 ux amp Auto Off Low High r aea a R B IOR 1 4666 Wavelength 1550nm iil Figure 3 26 Contrast Adjustment of LCD Display Use 4 and Ld to adjust contrast and press Enter to confirm 3 4 3 2 19 Color Mode Setting Choose the different displaying color scheme according to the user s fancy Under parameter configuration use and W to highlight Color mode press Figure 3 27 3 Enter to choose different mode Press au i to exit as shown in Length Units Meter m I IOR 1 4666 E Scat Coef 52 1dB Nrefl Thre 0 20dB ll Refl Thre 52 00dB BE End Thre 3 00dB ne Delete File A Time y m d 2005 05 27 10 30 20 x Au
5. 1 4000 waveiengtn 122Unm ill Figure 3 14 Measurement Mode Configuration 3 4 3 2 7 VFL Configuration For OTDR S20C only Under parameter configuration use 44 and W to highlight VFL according to different demand press Enter to select CW 1Hz or off Press au i to exit When VFL is on icon will be displayed under Figure 3 15 icon which is in the right menu bar as in 19 User s Manual for OTDR Range PulseWidth Avg Time Wavelength Meas Mode Length Units IOR Scat Coef g Nrefl Thre Refl Thre End Thre AP Auto Auto 30s 1550nm Averaging CW Meter m 1 4666 52 1 dB 0 20dB 52 00dB 3 00dB IOK 1 4666 Wavelength 1550nm Et xen Gore He Figure 3 15 VFL Configuration 3 4 3 2 8 Length Units Configuration Under the parameter configuration menu use and V to highlight Length Units press Enter to select the desired units of measurement as in Figure 3 16 Press A 1 to exit Range PulseWidth Avg Time Wavelength Meas Mode VFL IOR Scat Coef t Nrefl Thre A Refl Thre R End Thre Auto Auto Feet ft Miles mi 1 4666 52 1dB 0 20dB 52 00dB 3 00dB Ibn 1 4000 waveiengirm toounm I xtet cop eu Figure 3 16 Length Units Configuration 3 4 3 2 9 IOR Configuration IOR is a key factor to affect the speed of laser transmission in optic fiber and in this case IOR confi
6. 52 00dB b R End Thre 3 00dB YB IOK 1 4000 wavelengtn 155vnm Null Figure 3 18 Scatter Coefficient Configuration Use 4 and Ld to adjust the position of highlights use A and V to change the digits After setting press Enter to confirm 3 4 3 2 11 Non Reflection Threshold Configuration This configuration has direct impact on the listing of insertion loss events Only events GE this threshold will be listed Under parameter configuration use and V to highlight Non reflection threshold press Enter to enter as shown in Figure 3 19 Press A 1 to exit 21 User s Manual for OTDR mn J _ Range Auto J PulseWidth Auto a li Avg Time 30s 7 Wavelength 1550nm Sil Meas Mode Averaging a VFL Off Length Units Meter m t IOR 1 4666 x Scat Coef 52 1dB BS ser 1 2005 r a Refl Thre 52 00dB v R End Thre 3 00dB Ys IOK 1 4000 waveiengtn 122Unm jai Figure 3 19 Non Reflection Threshold Configuration Use 4 and Ld to adjust the position of highlights use A and V to change the digits After setting press Enter to confirm NOTE The default setting is 0 2dB 3 4 3 2 12 Reflection Threshold Configuration This configuration has direct impact on reflection events listing Only reflection events GE this threshold will be displayed in events list Under parameter configuration use and V to highlight reflection threshold press Enter to enter as sho
7. 8Km Div 5 00dB Div Ave Time 00 30 Time Passed 00 16 A Figure 4 3 a Measuring cow Pu T e YB D 99 020 Im i ST 8Km Div 5 00dB Div Ave Time 00 30 Time Passed 00 30 Analyzing ii cup v T e AB Figure 4 3 b Measuring Measure time which is set by user is 30 seconds Total measurement time has passed 16 seconds Flickering of this sign means laser is active gt After a certain period of time the trace displays on the GUI The trace in the Figure below is a trace during measurement which will be refreshed for every certain period of time to demonstrate the whole process to users in real time But at the end of measurement the trace will be final as shown in Figure 4 4 32 User s Manual for OTDR i EEN mm i E E n T c Pr n 1 De i I1 M i Jit m nt Po PO ni 8Km Div 5 00dB Div tracel Event T No 2 4 JL Location 25 308km ga Refl 38 12dB Ins L 0 85dB Attn 0 220 Cum L 5 57dB liil Figure 4 4 Trace Measurement of OTDR 4 2 4 Trace Measurement Manual If the operators have full knowledge of measured optic fiber they can set accurate parameters and achieve optimal measurement results gt Change range Refer to 3 4 3 2 2 range configuration to select adequate range gt Measure Press Run Stop to start measurement The process is the same with Auto measurem
8. Replacing Battery users dr b gU n terat Dr RR t i 39 Structure o Fla g s onean iri ed em Hg energie 41 Model Illumination 1 snini nn nianna n E a A E E a 43 Model Illumination 2 aean r a a 45 ix User s Manual for OTDR 1 General Information 1 1 Scope of this Manual Thank you for purchasing XtendLan instruments Please read this manual carefully before using any of XtendLan series fiber optic instruments Always observe the warnings and cautions appearing throughout this manual This manual contains the information necessary for proper operation and maintenance of XtendLan OTDR troubleshooting instructions as well as information regarding obtaining services All XtendLan OTDR are carefully assembled and undergo a rigorous mechanical electrical and optical inspection prior to shipment Beside the instrument the package should also include a data transfer cable a power adapter a PC Analysis software installation disk and this users manual etc For detailed information refer to the packing list Upon receiving the instrument please check for any obvious signs of physical damage that may have occurred during shipment Report any damage to the shipping agent or the representative of XtendLan Inc immediately Retain the original packing materials in case reshipment becomes necessary 1 2 Unpacking and Inspection This instrument has been carefully packed in accordance with standard shipping procedures Examine t
9. s 15 30 60 120 180 Attenuation Dead Zone m E 25 Event Dead Zone m d 10 Sampling Range m 1 10 Sampling Points 16000 Points Maximum Distance Measure Accuracy 1 m 5x10 xDistance m sampling space Attenuation Measure Accuracy 0 05dB dB Reflection Measure Accuracy 4dB Measurement Data Storage 300 test curves Connector Type FC PC interchangeable SC ST Data Transmission RS 232 USB port Note 1 Specifications describe the instrument s warranted performance measured with typical PC type connectors Uncertainties due to the refractive index of fiber are not considered 2 The dynamic range is measured at maximum pulse width within average time of 3 minutes 3 Conditions for blind Measurement Reflection events are within a range of 4km reflection intensity is less than 35dB and the blind zone is measured at the minimum pulse width The definition of XtendLan OTDR series models is shown as follows a The two digits represent different wavelength S13 for 1330nm S15 for 1550nm b The alphabet of A followed the one digit stands for different dynamic range Please find the model rule as below 42 User s Manual for OTDR palmOTDR XXX ML e Dynamic Range 13 1310nm A2AdB 15 1550nm 4 Figure 6 1 Model Illumination 1 Other Parameters Power Supply NiMH chargeable battery AC adapter auto recharging Batte
10. the instrument will be power off several seconds after powering on so as to protect the batteries in case of excessive discharging The inside batteries should be recharged immediately through adapter gt Cautions in Recharge User s Manual for OTDR Quick charge is needed first and then switch to trickle charge after the voltage reaches a predefined Figure Quick charge temperature is 5 45 C and trickle charge temperature is 0 55 C suitable for indoors Battery will not be full or be damaged if the charging temperature is beyond the above range which may shorten batter life 8 hours for quick charge Do not charge for over 8 hours 2 4 Keypad Functions Shinew ayTech palmOTDR XXXX Version X X gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt ES Figure 2 3 Operation Interface of OTDR On Off Power on or off Run Stop Under GUI Press to start measurement While testing press this key to stop measurement FN r ng cas all C A Run Stop JW LL p T EY Fr Shift Kk Enter Shinew ayTech s J User s Manual for OTDR Enter gt Under GUI press this key to confirm the current operation gt Together with Shift A can browse the event list downwards A V Main functions Move menu bar in menu operation Highlig
11. 0 20dB p Refl Thre 52 00dB hs g End Thre 3 00dB r A Delete File b R ETTCETEEEN 2008 05 27 10 30 20 IOK 1 4000 Wavelength 155Unm ji Figure 3 23 Time Configuration Use 4 and Ld to adjust the position of highlights use A and V to change the digits After setting press Enter to confirm 3 4 3 2 16 Auto off Configuration This function is designed for conserving battery power If auto off is on the instrument will 24 User s Manual for OTDR auto power off within 5 minutes of idleness Under parameter configuration use A and V to highlight Auto off press Enter to switch as shown in Figure 3 24 Press AX i to exit mn 7 Wavelength 1550nm i a Meas Mode Averaging Ed VEL Off zl Length Units Meter m IOR 1 4666 I Scat Coef 52 1dB Nrefl Thre 0 20dB it Refl Thre 52 00dB x End Thre 3 00dB g Delete File e A Time y m d 2005 05 27 10 30 20 b s ERO 0 ff Y IUK 1 4000 waveiengtn 122Unm jii NOTE Figure 3 24 Auto Off Configuration The default setting is auto off on 3 4 3 2 17 Language Configuration There are two language options English and Chinese Under parameter configuration use and V to highlight Lang i amp Enter to switch as shown in Figure 3 25 Press KK to exit Meas Mode Averaging J VFL Off z Length Units Meter m IOR 1 4666 Scat Coef 52 1dB a Nrefl Thre 0 20dB Refl Thre 52 00dB
12. 30s Samp Dist 5 11m Ag Range 80km PulseWidth 2 5us IOR 1 4666 Wavelength 1550nm iy Figure 4 5 Save Trace Input filename use A LUV 11 and P to choose the alphabet or Arabic numerals one by one and press Enter to confirm The length of filename will not exceed 8 characters of alphabet or Arabic numerals gt Save file use ALVIS and P to highlight OK press Enter to save gt Cancel saving file use A W 1 0 and Ld to highlight cancel press Enter to cancel the operation of save file Delete alphabet Arabic numerals use ATI wii and L to highlight Delete press Enter to delete the alphabet Arabic numerals Memory space 118 300 means that total memory space is 300 files it has already saved 118 files so far 4 10 Browse Saved Traces A Under GUI of Figure 4 4 use AJ and V to highlight 4 press Enter to confirm as shown in Figure 4 6 96 User s Manual for OTDR D 23 020 e Select file 118 300 S ao 27 May 2005 10 30 fey Trace002 Range 80km I Trace003 Pwidth 2 5us _ Trace004 Wavelen 1550nm nt Trace005 X Trace006 8K Trace007 Open Cancel HS Av Trace008 IVA Range 80km PulseWidth 2 5us IOR 1 4666 Wavelength 1550nm di Figure 4 6 Browse Saved Traces Use AJ and V to highlight the certain trace then use 4 and P to choose Open or Cancel Press Enter to confirm Memory space 118 30
13. cleaning Always use dry or moistest soft cloth to clean the outside of the instrument and never clean the inside f Please do not add any accessory to optic instrument or adjust the instrument at discretion g For maintenance always go to qualified or certified professionals gt Tools for Cleaning Interfaces and Connectors a Optic fiber cleaner for cleaning of optic connectors b Optic fiber cleaning rod for cleaning of optic outputs c Optic fiber cleaning tissue for cleaning optic interfaces d Isopropyl alcohol e Cotton ball 40 User s Manual for OTDR f Paper tissue g Cleaning brush h Condensed air Preferred Procedure for Cleaning Interfaces and Connectors As in Figure 5 2 Preferred Procedure is as follows a Screw off the cap of flange b Clean the laser head carefully c Screw on the cap of flange Figure 5 2 Structure of Flange Calibration Requirements Calibration of the instrument is recommended every two years Please contact our representatives or nearby customer service centers for proper calibration 41 6 Specifications User s Manual for OTDR Optical Specifications OTDR S13A OTDR S15A Dynamic Range dB od 24 24 Wavelength 20nm 1310 1550 Display Type Colorful Fiber Type Single mode Selectable Ranges km 0 3 1 3 2 5 5 10 20 40 80 120 Pulse Widths ns 12 30 100 275 1000 2500 Average Time
14. defective should be made inoperative and secured against unintended operation until they can be repaired by qualified service personnel i User s Manual for OTDR Safety Terms Used in This Manual CAUTION NOTE The WARNING sign denotes a hazard It calls attention to a procedure practice or the like which if not correctly performed or adhered to could result in personnel injury Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met The CAUTION sign denotes a hazard It calls attention to an operating procedure or the like which if not correctly performed or adhered to could result in damage to or destruction of part or all of the product Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood and met The NOTE sign information that may be beneficial during the use and maintenance of the instrument gt OTDR is a laser instrument Users should avoid looking directly into the optic output And the use of microscope or magnifier should also be avoided for the use of such devices can focus a highly intense beam onto the retina which may result in permanent eye damage Make sure that the optical fiber or cable is not in use and there is no laser beam in the fiber before testing via OTDR Otherwise it may result in imprecise test trace even permanent damage for the OTDR CAUTION Battery Battery for this instrument i
15. warranted performance measured with typical PC type connectors Uncertainties due to the refractive index of fiber are not considered 2 The dynamic range is measured at maximum pulse width within average time of 3 minutes 3 Among the selectable ranges 160km and 240km only for type C 120 km only for typeA 4 Among the pulse widths 5ns 10ns 300ns 10us and 20us only available for type C 12ns and 275ns only available for type A 5 Conditions for blind Measurement Reflection events are within a range of 4km reflection intensity is less than 35dB and the blind zone is measured at the minimum pulse width 6 Conditions for blind Measurement Reflection events are within a range of 1km reflection intensity is less than 32dB and the blind zone is measured at the minimum pulse width 44 User s Manual for OTDR The definition of XtendLan OTDR series models is shown as follows a The three digits represent different mode and wavelength S20 for single mode and 1310 1550nm M20 for multiple mode and 850 1300nm b The alphabet of A and C followed the two digits stands for different dynamic range Please find the model rule as below palmOTDR XXX X Wavelength Dynamic Range S20 single mode 1310 1550nm A 24dB for single mode and 18 22dB for multiple mode M20Q multiple mode 850 1300nm C 32dB for single mode Figure 6 2 Model Illumination 2 Other Parameters Power Supply NiMH
16. 0 means that total memory space is 300 files it has already saved 118 files so far 4 11 Upload Saved Traces Saved traces can be uploaded to PC through the associated software of trace manager with which traces can be further processed on PC Install the software and run gt Power off OTDR Connect OTDR to PC through RS232 or USB interface cable gt Power on OTDR and upload data with the software The whole process is as in Figure 4 7 D 99 020 i i A C c ioc ET vl E PV I i EET 14 Upload files 3k Waiting 4 8 R nt T T T 8Km Div 5 00dB Div tracel Para 1 4 Avg Time 30s Samp Dist 5 11m M Range 80km PulseWidth 2 5us E IOR 1 4666 Wavelength 1550nm ini Figure 4 7 Upload Saved Traces 37 User s Manual for OTDR NOTE Make sure the instrument is power off when connecting to PC through RS232 or USB data cable Make sure it s fastened then power off USB sustains the electrification hot plug However USB operation rules must be obeyed while connecting to PC To install USB driver correctly is necessary before uploading the data Make sure USB is pulled out safely Otherwise it will result in losing data gt This operation cannot be applied under GUI of parameter configuration save trace browse saved traces and measuring in progress 4 12 Alter Measurement in Realtime Testing For OTDR S20C only To alter measurement in realtime testing follow th
17. B r A Refl Thre 52 00dB b R End Thre 3 00dB YB IOK 1 4000 waveiengin 122Unm ui Figure 3 11 Pulse Width Configuration Use AJ and V to highlight pulse width Press Enter to confirm NOTE Auto means the default setting gt When Range is set to Auto pulse width will automatically become Auto 17 User s Manual for OTDR 3 4 3 2 4 Average Time Configuration Average time will affect the SNR directly The longer the average time is the higher SNR is as well as dynamic range Therefore in case of measurement of long distance optic fiber long average time should be selected in order to review events at long distance end Under parameter configuration use 44 and W to highlight Average time press Enter to confirm as shown in Figure 3 12 Press L to exit B Range PulseWidth 30g Wavelength min all Meas Mode 2min d VEL 3min I Length Units t IOR 1 4666 ix Scat Coef 52 1dB er Nrefl Thre 0 20dB t A Refl Thre 52 00dB R End Thre 3 00dB IOK 1 4000 wavelengtn 122Umm dill Figure 3 12 Average Time Configuration Use A and V to highlight the desired time and press Enter to confirm NOTE gt There are 5 levels of predefined average time 15s 30s Imin 2min and 3min gt The default setting is 30s 3 4 3 2 5 Wavelength Configuration Under parameter configuration use and V to highlight waveleng
18. IOR of optic fiber which affects the transmission speed of laser Scatter Coefficient Which affects backward scatter power of laser in fiber Non reflection threshold Events whose insertion loss is greater than the threshold displays here Reflection threshold Reflection events GE the threshold will be displayed The first event with insertion loss GE the threshold is considered the End threshold gt end of fiber and all following events will be ignored Delete Files Delete stored trace data in the instrument Time Show current system time Auto Off On or off of Auto off function Lang i amp zi Choose the language LCD contrast Adjust the contrast of LCD to select Color mode setting Select suitable displaying color setting Load Default Set all parameters to factory setting Help Show help files Quick Reference 3 4 3 22 Range Configuration Generally range will be set according to actual length of optic fiber so as to insure the accuracy of measurement Under the menu of parameter configuration use and V to highlight Range Press Enter to enter as shown in Figure 3 10 press KK to exit z A i 5 Nl PulseWidth 300m Zz Avg Time 1 3km Wavelength 2 5km all Meas Mode 5km y VFL 10km Ne Length Units 20km It IOR 40km E Scat Coef s km an g Nrefl Thre 160 km Ls A Refl Thre jo A R End Thr
19. R an indispensable tool for manufacture construction and maintenance of optic fiber The faults and heterogeneity of optic fiber itself cause Rayleigh scattering of light pulse transmitted in optic fiber Part of light pulse is scattered in the reverse direction and this is called Rayleigh backward scattering which actually provides attenuation details relating to length Information relating to distance is obtained through time information that s the reason why there is time Domain in the name of OTDR Fresnel reflection occurs at the boundary between two media of different IOR for example connections of faults connectors or optic fiber end This reflection is used to locate the discontinuous points on optic fiber The magnitude of reflection depends on the difference between IOR and the smoothness of boundary OTDR sends out a light pulse into connected optic fiber and receive reflections of events and backward scattering power of pulse in time Locus will be displayed on LCD The y axis is dB value of backward scattering power and the x axis is the distance 3 2 Basic Definition and Classification of Events 3 2 Events Events refer to any abnormal points causing attenuation or sudden change of scattering power besides the normal scattering of optic fiber which include all kinds of losses like bending connections and ruptures Events points displayed on LCD are abnormal points that cause traces to deviate from str
20. S232 interface This interface is used to transfer saved traces in the instrument to a PC for further analysis by associated trace manager Power Charge Indicator When measurement power on or charging the relevant indicator will be lightened User s Manual for OTDR Indicator of Charge A S am Indicator of Power CHARGE A Va POWER AC Power Jack USB Port USB Q OTDR AN VLS RS232 Port Warning Figure 2 2 Coping of OTDR S20C gt OTDR VLS Fiber optic output for OTDR and VLS a FC PC interchangeable SC ST connector is used for optic interface gt AC Power Jack Power adapter jack requirements 13 8V DC 1 2A Data Transfer Port For all types there are USB interface and RS232 interface This interface is used to transfer saved traces in the instrument to a PC for further analysis by associated trace manager Power Charge Indicator When measurement power on or charging the relevant indicator will be lightened Invisible laser radiation CAUTION Please always avoid looking directly at the optical output or stare at laser beam 2 3 Use of Batteries Battery for XtendLan OTDR is NiMH battery gt Cautions during Operation The following may bring auto power off of the instrument The instrument will be auto power off when there is insufficient power during operation and low power will be shown on the LCD Tf unused for a long time and cause insufficient power
21. User s Manual for OTDR AXtenaL an OTDR Optical time domain reflectometer User s Manual User s Manual for OTDR Safety Instructions During each stage of operation of this instrument please always observe the following safety instructions Not taking any safety precautions or following the instructions will violate the safety standards of design manufacturing and application of these instruments In no case will XtendLan bear the responsibilities for consequences incurred by violation of the following instructions GENERAL This product is a Safety Class 3 instrument The protective features of this product may be impaired if it is used in a manner not specified in the operation instrument Environmental conditions It is designed to operate at a maximum relative humidity of 9596 and at altitudes of up to 2000 meters Refer to the specifications tables Before applying power Verify that the product is set to match the available line voltage the correct fuse is installed and all safety precautions are taken Note the instrument s external markings described under Symbols Do not operate in an explosive atmosphere Do not operate the instrument in the presence of flammable gases or fumes Do not remove the instrument cover Operating personnel must not remove instrument covers Component replacement and internal adjustments must be made only by qualified service personnel Instrument that appears damaged or
22. aight line Events can be classified as reflection events and non reflection events User s Manual for OTDR 3 2 1 1 Reflection Events When some pulse energy is scattered reflection events happen When reflection event occurs peak shows on trace as shown in Figure 3 1 Figure 3 1 Reflection Event 3 2 1 2 Non reflection Events Non reflection events happen at certain points where there is some optic loss but no light scattering When non reflection event occurs a power decline shows on trace as in Figure 3 2 Figure 3 2 Non reflection Event 3 2 1 3 Inspection Events OTDR sends off a light pulse into the optic fiber to be inspected and then receive returning light signals and starts calculating the event distance The farther the distance is the longer time need for scattered light to be received by the instrument Event distance can be calculated according to the time of receiving events signals Through inspection of scattered signals properties of optic fiber connectors tie ins can be identified User s Manual for OTDR 3 3 Measurement Application of OTDR OTDR displays power relating to distance of returning signals This information can be used to identify the main properties of an optic fiber chain 3 3 Measurement Contents of OTDR Y v ON Y Event location distance end or rupture of optic fiber chain Attenuation coefficient of fiber Loss of a single event for example one
23. ble Chargeable Battery Figure 5 1 Replacing Battery 39 User s Manual for OTDR Cleaning of Interfaces Interfaces must be kept clean Special alcohol may be used to clean optic output Always replace protective dust caps when the unit is not being used and keep the protective dust caps clean In addition flanges must be kept clean periodically Effects of Cleaning Interfaces and Connectors The diameter of optic core is Oum and diameter of dust and other particulates ranges from 1 100 to 1 1 10 um Comparatively speaking the size of dust and other particulates can cover part of optic end and therefore degrade the performance of the instrument In addition power density may burn dust into optic fiver and induce further damage for example OdBm optic power may produce about16000000W m m power density in single mode fiber In this case measurement will be inaccurate and irreversible Safety instructions to be followed before cleaning a Make sure the instrument is power off when cleaning b Any operations contradict to the instructions may result in dangerous laser injuries c Make sure laser source is off when clean any optic connectors d When the instrument is in operation please always avoid looking directly into optic output Although laser radiation is invisible it may do serious injury to eyesight e Be cautious of electric shock and make sure AC power is disconnected with the instrument before
24. chargeable battery AC adapter Battery Capacity Support over 8 hours operating on one charge or 220 hours standby Operating Temp 0 to50 Storage Temp 20 to 70 Relative Humidity 10 to 9096 non condensing Weight 0 87kg Dimension H x W x T 7 7x3 9x2 4 inch 196x100x60mm 45 7 Warranty Information Terms of Warranty All XtendLan products are warranted against defective material and workmanship for a period of one 1 year from the date of shipment to the original customer Any product found to be defective within the warranty period would be repaired or replaced by XtendLan Inc free of charge In no case will XtendLan Inc liabilities exceed the original purchase price of the product Exclusions The warranty on your equipment shall not apply to defects resulting from the following gt Unauthorized repair or modification gt Misuse negligence or accident XtendLan Inc reserves the right to make changes to any of its products at any time without having to replace or change previously purchased units Warranty Registration A warranty registration card is included with the original shipment of equipment Please take a few moments to fill out the card and mail or fax it to the local Customer Service Center of XtendLan Inc to ensure proper initiation of your warranty term and scope of your warranty Returning Instruments To return instrument for reasons of yearly calibration or other please contact t
25. ction of optical fiber length and loss of dB or dB Km c Forthe whole optical fiber chain length and loss of dB Large Colorful LCD display with auto or manual adjustment of contrast Backlight LCD display supports night operation Easy operation with trace graphic display Trace storage function RS232 USB Data upload port PC analysis software for analyzing and reporting previously stored data vv v v NON ON Auto off function conserving battery life User s Manual for OTDR gt DC AC power supply gt Auto recharging over 8 hours operation for one charge User s Manual for OTDR 2 Basic Operation 2 1 Foreword This part introduces the basic operation on the OTDR Specific operations of each type instrument are elaborated in Chapter 3 of this manual Please read this manual carefully for optimal operation Should you encounter any problems during operation you are welcome to contact the technical staff of our company or representatives 2 2 Instrument Interfaces Instructions Indicator of Charge Indicator of Power USB Port Optic Connector P AC Power Jack RS 232 AN 13 BV 1 24 RS232 Port t Warning Figure 2 1 Coping of OTDR S13A S15A S20A M20A Fiber Optic Output A FC PC connector is used for optic interface gt AC Power Jack Power adapter jack requirements 13 8V DC 1 2A gt Data Transfer Port For all types there are USB interface and R
26. d 2005 05 27 10 30 20 Auto Off Off t Lang if English LCD Contrast p 8 Color Mode Color 2 Fr A Load Default b R d IOK 1 4000 Wavelengtn 12525Unm i Figure 3 29 a Help Quick reference 1 Connect the fiber and palmOTDR Press A or Wto select icon Press Enter to activate function 3 SelectJ to set parameters IOR Scat Coef pulsewidth range avg Time Refl Thre NonRefl Thre and End Thre etc 4 Press Run Stop to start 5 Press Mto view measure results Page Up P Page Down Mquit Figure 3 29 b Help 27 User s Manual for OTDR Quick reference 6 Press or Pto move active marker 7 Select fjor Jk to zoom trace horizontally and select Wor nt to zoom trace vertically 8 SelectAgto switch markers 9 Selectforw amp to browse event 10 Select to save files 11 Select to open saved files Warning Always Avoid Naked Eyes Exposed to Laser APage Up P Page Down Kuit Figure 3 29 c Help 28 User s Manual for OTDR 3 5 Battery Recharge Status When the instrument is power off and powered through AC DC adapter the CHARGE indicator on the coping Figure 1 will turn on When batteries are fully recharged the indicator will turn off When the instrument is power on and powered through AC DC adapter the inside batteries are automatically recharged The meanings of signals are as follows 1 2 The batteries are being recharg
27. d EG Figure 3 4 Traces and Coordinates 3 4 2 Information Window of OTDR Contents of this window measurement parameters events list marker A B and analysis parameters 3 4 2 1 Measurement Trace Parameters Important measurement and analysis parameters always display in the information window as shown in Figure 3 5 a b 11 D 99 020 v 8Km Div 5 00dB Div Avg Time 30s Range 80km IOR 1 4666 Samp Dist Pulse Width Wavelength User s Manual for OTDR sce Pu T Para 1 tracel 5 11m 2 5us 1550nm nij ge Figure 3 5 a Measurement Trace Parameters 0 53 020 8Km Div 5 00dB Div tracel Para 2 Date 27 May 2005 09 15 NRefl Thre 0 20 End Thre 3 00 Refl Thre 52 00 Scat Coef 51 50 Figure 3 5 b Anal For definitions and configurations of items B xe sauirnws ysis Trace Parameters in Figure 3 5 a Avg time sample distance Range IOR wave length and pulse width showed in the interface please refer to parameter configuration For definitions of items in Figure 3 5 b da te reflection threshold non reflection threshold end threshold scattering coefficient please refer to parameter configuration 3 4 2 2 Events List To indicate the location of events inspected Any defined posts will be displayed in event list for example non reflection event like welding points and reflectio
28. e IOK 1 4000 waveiengin 155vnm till Figure 3 10 Set Range 16 User s Manual for OTDR Use AJ and V to select adequate range Press Enter to confirm NOTE Auto means the automatic measurement When this function is selected the instrument will automatically make an intelligentized selection of adequate range and pulse width for measurement The whole process of measurement does not need any intervetion of the operator Auto means the default setting 3 4 3 2 3 Pulse Width Configuration The selection of pulse width affects the dynamic range and resolution of measurement trace With narrow pulse width there will be higher resolution and smaller dead zone however the dynamic range will be decreased On the contrary wide pulse width can bring higher dynamic range and measure comparatively long distance but resolution and dead zone will be affected Therefore users should make choice between dynamic range and dead zone There will be different pulse width options for reference according to different range of distance being chosen Under menu of parameter configuration use and V to highlight PulseWidth Press Enter to select as shown in Figure 3 11 Press AC to exit 4 _ Range E M 5 100ns I Avg Time 300ns zl Wavelength unas Meas Mode ge gt VFL E Length Units Meter m it IOR 1 4666 Ry Scat Coef 52 1dB a amp Nrefl Thre 0 20d
29. ed NEN The batteries are fully recharged When the instrument is powered by inside rechargeable batteries power volume of batteries is shown on the LCD I No power L Low power 1 Ii Half power MN More than half power WHEE Full power 29 User s Manual for OTDR 4 Trace Measurement and Processing of Existing Traces 4 1 Instructions on GUI After power on power on interface displays on the LCD as shown in Figure 4 1 Shinew ayTech palmOTDR XXXX zs Vers oNN NE gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt Figure 4 1 Power on Interface Logo of XtendLan Inc OTDR XXXX Model Version X X Software Version Three seconds after power on the interface will be automatically directed to quick reference 1 Connect fiber to optical port JP ess kunn S COD bok start 3 lt P or Jp to browse event table mi WM to view trace parameters A Avoid E E d to I n voi yes Expose o Laser ni z 4 Km Div dB Div Para i g Ave Time s SenpDuste ess AB Range km PulsieWidth 2 TORE o Wavelength nm n Figure 4 2 Quick Reference 30 User s Manual for OTDR 4 2 Trace Measurement of OTDR One complete trace can be obtained for each measurement Also OTDR can load a saved trace NOTE Before each measurement if the operator is not familiar with the cautions plea
30. efore necessary configuration must be performed before using the instrument The following are examples of OTDR S20C Use Aa and V to highlight Z ie parameter configuration then press Enter as shown in Figure 3 9 Press L to exit FETT Auto J k PulseWidth Auto 2 Avg Time 30s Wavelength 1550nm all Meas Mode Averaging 95 VEL Off I Length Units Meter m IOR 1 4666 x Scat Coef 52 1dB E Nrefl Thre 0 20dB r A Refl Thre 52 00dB b R End Thre 3 00dB Mp IO nr 1 4000 Wavelengtm 122Unm i Figure 3 9 a Parameter Configuration E30 554 az mg Scat Coef 52 1dB a i NRefl Thre 0 20dB Refl Thre 52 00dB 7 End Thre 3 00dB sl Delete File i Time y m d 2005 05 27 10 30 20 Auto Off Off Lang i amp rz English jes LCD Contrast Xi g Color Mode Color 2 e Load Default b A R i IUK 1 4000 waveiengtn 122Unm ji Figure 3 9 b Parameter Configuration 15 User s Manual for OTDR 3 4 3 2 1 Definitions of Measurement Parameters Parameter Definition of Parameter Range Length of optic fiber relevant to the trace Pulse Width Width of laser pulse sending out from OTDR to optic fiber Average Time To select suitable testing time Wave length To select laser wave length for measurement Measurement Mode To select mode for measurement VFL Power on or off visible laser For OTDR S20C only Length Units To select length units IOR
31. ent 4 2 5 Trace Measurement Reasons of Measurement Failures If measurement failures occur reasons may be one of the following Events may be too close to each other Shorten the pulse width and make another try If failure still occurs please try to measure at the other end of the optic fiber gt LowSNR Try to use wider pulse or increase average time and make another try Incorrect parameter configuration Check parameter configuration and make another try 4 3 Information Window Items of information window measurement parameters analysis parameters and information regarding marker A B For details regarding information window please refer to 3 4 2 OTDR information window 33 User s Manual for OTDR 4 3 1 Switch between Information Window Items Under GUI of Figure 4 4 press K and the items of information window will display in circulation measurement parameter analysis information Event list information of marker A B fiber measurement parameter 4 3 2 Review Event List Under GUI of Figure 4 4 press K items in information window will switch to event list information Use A and V too highlight To then press Enter to review events list T is to browse upwards and b downwards or to browse events list upwards and downwards by the combining hot key Shift Aj m and Shift X Enter in the keyboard 4 3 3 Review Marker A B Information 4 3 3 1 Switching between Marker A B U
32. ese steps gt Use A and VW to highlight p and the press Enter A parameter will appear at the bottom of the screen gt use and P to move the parameter to be changed Figure 4 8 and the press Enter gt Use A and V to change the Ref value Select Averaging to select averaging testing gt Press OK to exit the parameter configuration menu D 99 020 8Km Div 5 00dB Div Event Range sem PulseWidth 2 5us Ap Wavelength 1550nm IOR 1 4677 Averaging OK li Figure 4 8 Realtime Testing 98 User s Manual for OTDR 5 Maintenance and Calibration Maintenance and Replacing of Batteries Battery for this instrument is rechargeable NiMH battery NOTE Notes for maintenance of batteries in the instrument gt In order for the OTDR including the batteries to meet specifications the storage temperature should be within 15 Cto 30 C And the instruments should be stored in low humidity environments gt If the instrument is left unused for a long time idle for over 2 months it is recommended to recharge the battery every other month gt As in figure 5 1 procedure of replacing battery is as follows a Take off cover of the battery chamber b Remove the battery and drow out socket from the jack of chargeable battery then change the battery if necessary c Remove the RTC clock battery then change it if necessary RTC Clock Jack for Chargea
33. guration has direct impact on the accuracy of measurement Generally speaking the IOR parameter is provided by optic fiber manufacturer and it can be set to the accuracy of four digits after decimal point between 1 0 2 0 Under parameter configuration use A and V to highlight IOR and press Enter to enter as in Figure 3 17 Press AC to exit 20 User s Manual for OTDR ETE A Range Auto d PulseWidth Auto gt Avg Time 30s 7 Wavelength 1550nm 4 Meas Mode Averaging J VFL Off Length Units Meter m t 1 666 M Scat Coef 52 1dB E g Nrefl Thre 0 20dB r A Refl Thre 52 00dB E R End Thre 3 00dB Ms IOK 1 4000 Wavelengtn 155Unm iiij Figure 3 17 IOR Configuration Use 4 and Ld to adjust the position of highlights use 4 and V to change the digits After setting press Enter to confirm 3 4 3 2 10 Scatter Coefficient Configuration Scatter coefficient determines the value of backward scatter power The configuration affects the calculation of reflection value Under parameter configuration use and V to highlight Scatter coefficient press Enter to enter as shown in Figure 3 18 Press L to exit 3 Range Auto J A PulseWidth Auto EJ Avg Time 30s J Wavelength 1550nm z Meas Mode Averaging i VFL Off E Length Units Meter m 1 IOR 1 4666 E Scat Coef 92 B d t Nrefl Thre 0 20dB r A Refl Thre
34. gure 3 3 Trace Display Screen oninia e REED it Dac ertt 11 Figure 3 4 Traces and Coordinates sese 11 Figure 3 5 a Measurement Trace Parameters essent 12 Figure 3 5 b Analysis Trace Parameters sessi 12 Figure 3 6 Events Lista nee ene e et Ne o fei e ee e etg 13 Figure 3 7 Information of Marker A B rrernnvnnnvrnvrrvnnrnnnvrrvvnvnnrnesnrsvvnrnernesvrevvevesvesvrevvesnesnr 13 Figure 3 8 Information of Fiber rernnnnrnvrnvrnnnnrnrrvrevnnrnnrvrnvvevnnsnesnrsvvnsvennesnrnvvnsvesvesvrevvesnesnn 14 Figure 3 9 a Parameter Configuration eenonnnnnrnnrnvnnrnenvrnvvnnnnnnrnrsvvnrvennrsvrevvnsvenvesvrevvesnesn 15 Figure 3 9 b Parameter Configuration eese eee 15 Fig re 3 10 Set Range oe qe rg REOR USE eee 16 Figure 3 11 Pulse Width Configuration trennen 17 Figure 3 12 Average Time Configuration essere eene 18 Figure 3 13 Wavelength Configuration essent 19 Figure 3 14 Measurement Mode Configuration essent 19 Figure 3 15 VEL Configuration scere e e o i e P P itte 20 Figure 3 16 Length Units Configuration essent 20 Figure 3 17 IOR Configuration oionn anae eia e nete nennen AETA KTRK 21 Figure 3 18 Scatter Coefficient Configuration essere 21 Figure 3 19 Non Reflection Threshold Configuration esee 22 Figure 3 20 Reflection Threshold C
35. he instrument for damage that may have occurred during shipment If you find any damage or the instrument is not working or if any of the following items are not included please contact your representative of XtendLan Inc If necessary you may contact XtendLan Inc via this email sales xtendlan com 1 3 Introduction XtendLan OTDR are the preferred choice for the measurement of optical fiber s specifications With OTDR you can make assessment of one single optical fiber or a whole optical fiber chain Especially you can directly observe loss and events distribution of optical fiber chain XtendLan OTDR check the transmission quality of optic fiber through measurement of backward scattered lights Standard organizations like International Telecom Union ITU define backward scattered lights as effective analysis means of measurement of optical fiber loss Backward scattering is also the only effective way of connector inspection which can User s Manual for OTDR be applied to measure the length of optical fiber too Therefore OTDR is a useful tool for optical fiber manufacturing installation and maintenance OTDR works through reviewing events in optical fiber for example irregularities and connectors which is quite helpful for quality control for those who are in charge of optical fiber manufacturing installation and maintenance OTDR can help identify the irregularities in optical fiber locate them and measure t
36. he local Customer Service Center of XtendLan Inc to obtain additional information and a RMA Return Materials Authorization number And describe briefly reasons for the return of the equipment to allow us offer you more efficient service To return the instrument in the case of repair calibration or other NOTE maintenance please note the following gt Be sure to pack the instrument with soft cushion like Polyethylene so as to protect the shell of the instrument Please use the original hard packing box If use other packing material please ensure at least 3 cm soft material around the instrument Be sure to correctly fill out and return the warranty registration card which should include the following information company name postal address contact phone number email address and problem description Besure to seal the packing box with exclusive tape gt Be sure to ship to your representative or the agent of the Company in a reliable way Contacting Customer Service Please check our web site www xtendlan com for updates to this manual and additional application information If you need technical or sales support please contact local XtendLan Customer Service
37. he specific operations of the above are to be elaborated afterwards 3 4 2 4 Information of Fiber Information of fiber includes total attenuation length and loss of the tested fiber As shown in figure 3 8 D 99 020 c OE ir m i d i 4 M X L ae v i nt 8K T i i m Div 5 00dB Div tracel Fiber File tracel Ma Total Attn 0 240 dB km Length 62 180km Loss 14 920dB lll Figure 3 8 Information of Fiber 3 4 3 Menu Bar and Window of OTDR 3 4 3 1 Menu Bar and Icons of OTDR No Icons Meanings 1 Parameter configuration 2 Save file 3 Open file Re analyze the trace 3x2 1 p Qi RC Na 5 Zoom in trace horizontally 6 Zoom out trace horizontally 7 Zoom in trace vertically 8 nt Zoom out trace vertically 9 b Switching between markers 10 T Review events list upwards 14 User s Manual for OTDR No Icons Meanings 11 Review events list downwards 12 mil Battery power indicator NOTE gt Under Help Menu only No 1 and 3 are operational gt Inthe process of measurement all function on menu bar will be disabled gt No 3 4 5 6 7 8 and 9 are tools for trace analysis No 10 and 11 are tools for reviewing events list gt No lis elaborated in Figure 3 4 3 2 3 4 3 2 Parameter Configuration on OTDR Menu Bar Correct parameter configuration is a necessity for accurate measurement ther
38. heir attenuation relevant loss and their homogeneity OTDR is more helpful for field operation It can help to check the qualification of optical fiber chain circuit on a regular basis For the purpose of future maintenance transmission quality and condition of optical fiber need to be recorded and stored which includes measurement of optical path total loss and loss of all tie ins and connectors Besides OTDR are easy to use small and compact According to the ergonomics they are designed to fully embody the user s convenience with its large LCD display and graphical interface They can save and transfer the measurement curves data to a PC by the provided software for further analyzing reporting and printing OTDR features by Basic applications a Measure the length of optical fiber and cable b Measure the distance between two points on optical fiber and cable c Locate faults and ruptures of optical fiber and cable d Display distribution curve of optical fiber and cable loss e Measure attenuation coefficient of optical fiber and cable f Measure loss between two points on optical fiber and cable g Measure loss of tie ins h Measure reflection of reflection events of optical fiber and cable For a specific event transmission quality changed due to faults caused by welding connector bending etc the following measurements can be carried out with OTDR a For each event distance loss and reflection b For each se
39. ht the icon to be operated gt Adjust parameter in parameter configuration Together with Shift A can zoom out or zoom in trace vertically re Main functions Select parameter to be adjusted in parameter configuration Move marker leftwards or rightwards in Trace operation gt Turn page while in Help sub menu Together with Shift A can zoom out or zoom in trace horizontally Kk Main functions Readhelp when power on gt Cancel the current operation Exit menu configuration Switch between information Windows Together with Shift A can review the event list upwards Shift X This is the hot key to active the integration function by being pressed together with other keys Besides by pressing this key singly under the GUI of displaying trace the trace can be resumed to the original size without any zoom User s Manual for OTDR 3 Basic Information of OTDR 3 1 Principle of OTDR OTDR Optical Time Domain Reflectometer is a measurement instrument for identifying optic fiber transmission features The instrument is mainly used to measure attenuation of a whole optic fiber chain and provide attenuation details relating to length namely detect locate and measure any event in optic fiber chain events refer to faults caused by welding connectors and bending whose transmission change can be measured Its non destructive one end connection and rapid measurement has made the OTD
40. ining hot key Shift 4 in the keyboard gt Use 4 and Ld to mover marker to event point to be observed gt For details please refer to 6 3 3 1 switching between Marker A B 4 7 Zoom out Trace Vertically This function is designed to zoom out trace vertically v gt Under GUI of Figure 4 4 press AJ and V to highlight TA then press Enter to zoom out trace vertically or to zoom out trace vertically by the combining hot key Shift 4 WV in the keyboard 4 8 Re analyze the trace While the test result at a certain threshold is not good enough it can be re analyzed by this function to change the threshold Please note that this function can be effective while the OTDR is disconnected from the fiber gt Under parameter configuration menu edit the threshold value you want press Aj to exit parameter configuration menu then press EL to re analyze the 35 User s Manual for OTDR trace 4 9 Save Trace When auto or manual measurement is finished the measurement trace can be saved Contents of trace saved include Trace curve related information of trace F gt Under GUI of Figure 4 4 use A and W to highlight umi then press Enter to enter as shown in Figure 4 5 LIT s Space Used 118 300 e EN mn El RACEO n ABCDEFGHIJKLM ai d NOPQRS UVWXYZ p 0123456789 resa EG Mal Save Cancel Delete 8Km I ra 1 T Avg Time
41. n essere rennen ener 1 153 Introducti olenes PT 1 Ze BASIC Oper avon per 4 2 BOfeWOFG reir tt eee E E ENTE EE AE Seastsa ERE EE EGRE TTE FG EYES 4 2 2 Instrument Interfaces Instructions rrnnrrrrronvrrnrrnnnrrrrrnnvrrrnnnnvrnrnnnnrnnsrnnnvessennnvessennnssre 4 2 35 Use OF Batteries o fates ite dates ite hates MNA EGAN 5 2A Keypad FUNCHONS ennn ir dt Cos rt OR a RC ED am EE E 7 3 Basic Information of OTDR e eese ee eee eese eese eese ense essen setas ense esses s esses sess ens 8 3 Principle of OPDR ortet a ERR COR RD Coi Cp oras eee 8 3 2 Basic Definition and Classification of Events eese 8 3 2 1 Events eerie eite e eee A EAE enses sess esses sees sense esses stesse esses sense enses sena 8 3 2 AT Reflection Bventsia a rtt teet eiit bet tips eid 9 3 21 2 Non reflection Events miii efie teen eri 9 3 24 3 Inspection EVENS e ne REIR de Pes he doe ee tat 9 3 3 Measurement Application of OTDR sese eene 10 3 3 1 Measurement Contents of OTDR 4 eerie eee eese eese tenens tse tastnato 10 3 3 2 Trace Analysis of OTDR eorr eere eere re npe eene eC nere eerie eR esu n ope ener a Uneven 10 3 4 Trace Display Screen of OTDR sss 11 3 4 1 Trace Display of OTDR 1 eee erre eterne eere r nente eain oa eros e ooa nua rn 11 3 4 2 Information Window of OTDR
42. n event like connectors as shown in Figure 3 6 12 i nr User s Manual for OTDR 3i HRD gt 8Km Div 5 00dB Div tracel Event p No 2 4 JL Location 25 308km ga Refl 38 12dB Ins L 0 85dB Attn 0 220 Cum L 5 57dB liii Figure 3 6 Events List No Event sequence No Four types of events F Begin end SL Reflection event Fiber end L Attenuation event Loc Distance from beginning point to event Refl Magnitude of reflection Insl Loss of Inserted event Attn Attenuation characteristic from one event point to the current event Cuml Cumulative loss calculating from beginning point to the current event 3 4 2 3 Information of Marker A B Marker is used to mark and analyze a single event trace section and distance Distance attenuation loss at marker or between markers will be displayed in information of markers as shown in Figure 3 7 D 99 020 8Km Div 5 00dB Div tracel A B 9 274km 2Pt Loss 1 710dB 2Pt Atten 0 180dB km e257 0P R09 Marker 28 Figure 3 7 Information of Marker A B The following parameters are measured between marker A and B When you change either marker record will change accordingly 13 User s Manual for OTDR A B Distance between two markers 2 points loss Loss between two markers power difference between two markers gt 2 points attenuation 2 points loss of unit length T
43. nder GUI of Figure 4 4 use AJ and V to highlight va then press Enter to switch between marker A B Use 4 and Ld to move marker A or B 4 3 3 2 Information between Marker A B Under GUI of Figure 4 4 press K switch information window to marker A B Press Soi to change the position of marker A or B and information of marker A B will change accordingly in information window 4 4 Zoom in Trace Horizontally This function is designed for users to review details of every event more carefully Il gt Under GUI of Figure 4 4 use AJ and V to highlight 5 then press Enter to zoom in trace horizontally or to zoom in trace horizontally by the combining hot key Shift A Lal in the keyboard 34 User s Manual for OTDR Press 4 or gt to move marker to the event point to be observed gt To examine information of event point please according to 4 3 3 1 Switching between Marker A B 4 5 Zoom out Trace Horizontally This function is to zoom out trace horizontally Under GUI of Figure 4 4 use and V to highlight F and press Enter to zoom out trace or to zoom out trace horizontally by the combining hot key Shift A 4 in the keyboard 4 6 Zoom in Trace Vertically This function is designed for users to review event points more carefully gt Under GUI of 4 4 press 4 and V to highlight IG then press Enter to zoom in vertically or to zoom in trace vertically by the comb
44. o change the digits After setting press Enter to confirm NOTE The default setting is 3 00dB 3 4 3 2 14 Delete File This function is designed to delete saved traces Under parameter configuration use A and V to highlight Delete file press Enter to enter as shown in Figure 3 22 Press A 1 to exit 2205 User s Manual for OTDR 30 554 D 59 020 Select file 118 300 Cee c race I 27 May 2005 10 30 Trace002 Range 80km igi Trace003 Pwidth 2 5us n Trace004 Wavelen 1550nm n Trace005 x n Trace006 ax 8K Trace007 Av Trace008 OPERAE AEN M Range 80km PulseWidth 2 5us IOR 1 4666 Wavelength 1550nm aum Figure 3 22 Delete File Press A and V to choose the files to be deleted then press Enter to confirm Users can delete one or several files by one time Press 4 and PI to choose Delete Press Enter according to the instruction choose Yes to delete choose No to not delete If choose Cancel it will exit the file delete menu 3 4 3 2 15 Time Configuration Time configuration is used to change system time Under parameter configuration use A and V to highlight Time press Enter to change as shown in Figure 3 23 Press A 1 to exit Avg Time 30s J Wavelength 1550nm z Meas Mode Averaging il VFL Off Length Units Meter m gt IOR 1 4666 k Scat Coeff 52 1dB P Nrefl Thre
45. onfiguration seen 22 Figure 3 21 End Threshold Configuration sees 23 Figure 3 22 Delete File eene tp PRU COR UR C e er TR DUE VR EIER CUR 24 Figure 3 25 Time Configuration e snaut nr e Ra Ree 24 Figure 3 24 Auto Off Configuration ener eene etre nennen 25 Figure 3 25 Language Configuration eese nennen 25 Figure 3 26 Contrast Adjustment of LCD Display eese 26 Figure 3 27 Color Mode Setting oed eter ete ne o ir tue 26 Ergute 3 28 Load Default aene bres Le n de Pe t SER 27 Figure 3 29 a Help uh rede e rne ee tede rette Qecabubedtedesddecatersee 27 Eigure 3 29 b Helpesa entere ease tebe as PURO D OS EGER CA SERRE RAS iere 27 FEigure3 29 c Help RR tee eie EI ee Ie ete ee 28 Eigure 4 1 Power on Interface bre ete etae nta le eter epe teret 30 Figure 4 2 Quick Reference euin teneret ee e e t eerie ye 30 Figure 4 3 a Measuring 2 2 00 o ee e Re tee ette Pet e Red e ete 32 Figure 4 3 D MGasuring ient epe er ege Up egeo ete 32 Figure 4 4 Trace Measurement of OTDR sess 33 viii Figure 4 5 Figure 4 6 Figure 4 7 Figure 4 8 Figure 5 1 Figure 5 2 Figure 6 1 Figure 6 2 User s Manual for OTDR SAVE TrdCe aiite eee ete itle ie eive i e rete sees 36 Browse Saved Iraces ehe retten rri nete x ERR rante 37 Upload Saved Traces itte tet eitis 37 Realtime Testing uae e TR ER A te ede ees dues 38
46. optic tie in or total loss from upper end to end Range of a single event like reflection of connectors or grade of reflection Auto measurement of cumulative loss of a single event 3 3 2 Trace Analysis of OTDR The trace analysis of OTDR is fully automatic The trace locates Reflection events of connections and mechanic tie ins Non reflection events usually at welding tie ins End of optic fiber Through scanning the first loss event that is larger than end threshold end of optic fiber can be identified Events list event type loss reflection and distance 10 User s Manual for OTDR 3 4 Trace Display Screen of OTDR Trace displays on OTDR screen as in Figure 3 3 Em ane C i i i n Trace E i i c Display t EL ns Menu Window Il Bar 3k I I ood nt EET CR aes sey MEM eerie mi 8Km Div 5 00dB Div tracel Event P Information No 2 4 JL Location 25 308km Ag 4 B Window Refl 38 12dB Ins I 0 85dB Aru ties 08220 Cume bzc5 dB Mi Figure 3 3 Trace Display Screen 3 4 1 Trace Display of OTDR This window displays the trace after one measurement Definition of Trace After one measurement reflection power diagram will be displayed as distance function This diagram is referred to as trace Trace of OTDR displays measurement result in a graphic form The y axis stands for power and the x axis stands for distance as shown in Figure 3 4 Lai
47. ry Capacity Support over 8 hours operating on one charge or gt 20 hours standby Operating Temp 0 to50 Storage Temp 20 to70 Relative Humidity 10 to 90 non condensing Weight 0 87kg Dimension H x W x T 7 7x3 9x2 4 inch 196x100x60mm 43 User s Manual for OTDR Optical Specifications OTDR S20A OTDR S20C OTDR M20A Dynamic Range dB 24 24 32 32 18 22 Wavelength 20nm 1310 1550 850 1300 Display Type Colorful Fiber Type Single mode Multiple mode 0 1 0 3 0 5 1 3 2 5 5 10Q 850n Selectable Ranges km 0 3 1 3 2 5 5 10 20 40 80 120 160 240 0 1 0 3 0 5 1 3 2 5 5 10 20 40 80 1300nm 5 10 12 30 100 275 300 1000 pedi qu 1000 850nm Pulse Widths ns mo 2500 10000 20000 30 100 275 1000 2500 1300nm Average Time s 15 30 60 120 180 Event Dead Zone m 10 ao 70 Attenuation Dead Zone m 250 15409 200 Sampling Range m 1 10 0 1 15 1 10 Sampling Points 16000 Points Maximum Distance Measure Accuracy 1 m 5x10 xDistance m sampling space Attenuation Measure Accuracy 0 05dB dB Reflection Measure Accuracy 4dB Measurement Data Storage 300 test curves Connector Type FC PC interchangeable SC ST Data Transmission RS 232 USB port Visible Laser Source For OTDR S20C only Output Power dBm Max Meas Range km Note 1 Specifications describe the instrument s
48. s rechargeable NiMH battery If unused for a long time battery should be recharged before being used If the instrument is left idle for more than two months it should be recharged to maintain adequate battery volume Do not recharge iii User s Manual for OTDR batteries for more than 8 hours Do not take batteries out without technical staff s help Do not expose batteries to fire or intense heat Do not open or mutilate batteries Avoid touching the electrolyte in the batteries which is corrosive and may cause injuries to eyes skin or damage to clothes External Power OTDR from XtendLan support external power Power requirements DC 13 8V 1 2A Laser Radiation To avoid serious eye injury never look directly into the optical outputs of fiber optic network equipment test equipment patch cords or test jumpers gt Always avoid looking directly into the optical output port when the instrument is working gt Always replace protective dust cap on the detector port when the instrument is not being used gt Always avoid looking directly at unconnected end of optic fiber in testing and make the unconnected end pointing at a non reflective object if possible jv User s Manual for OTDR Table of Contents 1 General Information secereeevoenveenneenneenneenneenneenneennnennnennnennnennnennnennnennnennnennnennnennnenenenenenesee 1 I Scope of this M nu l een ke been ERI e ERR UE 1 1 2 Unpacking and Inspectio
49. se do follow instructions in this manual for personal safety Make sure that the optical fiber or cable is not in use and there is no laser beam in the fiber before testing via OTDR Otherwise it may result in imprecise test trace even permanent damage for the OTDR 4 2 Trace Measurement Connect Optical Fiber Connect optic fiber to OTDR optic output directly no tools needed gt Clean connectors for details please refer to chapter A gt Clean tie ins and check whether they are FC PC tie ins or not gt Connect optic fiber to the instrument 4 2 2 Trace Measurement Parameter Configuration For details relating to parameter configuration please refer to 3 4 3 2 Parameter Configuration on OTDR Menu Bar If the parameters are unclear please use the default parameters of the instrument however this may cause an increase of measurements errors NOTE Range is set to Auto when auto measurement is on 4 2 3 Trace Measurement Auto Auto measurement can be applied in case that the length of optic fiber is unidentifiable OTDR auto select adequate range for measurement Steps for Auto measurement gt Parameter configuration for detailed operations please refer to 3 4 3 2 Parameter Configuration on OTDR Menu Bar Set range to AUTO gt Measure press Run Stop to start measurement and the interface is as in Figure 4 3 a b 381 gt Interface NOTE User s Manual for OTDR D 99 020
50. t 40 V User s Manual for OTDR gt Effects of Cleaning Interfaces and Connectors eese 40 gt Safety instructions to be followed before cleaning sess 40 gt Tools for Cleaning Interfaces and Connectors eese 40 gt Preferred Procedure for Cleaning Interfaces and Connectors 41 Calibration Requirements 2 iet e tee cab les ete Ere teg ett tete bite tee E tg ote tet D 41 6 Specifications esesssnenesvenensenenesnenensenenssnenesneneneenenssnenesneneneenenesnenesnenensenenesnenessenensenenesnenensen 42 7 Warranty Information sesessssvvesvvvesevvenesvesnsvvennevennsvesenvessnesennesennsvesenesssnesennnsennsveneseesenee 46 Terms of Warranty Auda es E e RO HEU RE knam ee ae 46 EXCLUSIONS sire Ier eere t Permet rep ee atra et 46 Watr nty Registration gav RR eee 46 Returning Instruments cede or debere dete dunkel eee dre itin 46 Contacting Customer Service et eth a e re Op rete tetas 47 Vii User s Manual for OTDR Table of Figure Figure 2 1 Coping of OTDR S13A S15A S20A M20A rssrrvvnvnnrvrrnrrvnnrnnsvrrvvnrnernervrsvvevenneee 4 Figure 2 2 Coping of OTDR 820C eec terere riter t tegi eset iei ede eios 5 Figure 2 3 Operation Interface of OTDR esses ener nenne 7 Eigute 3 1 Reflection Event idee teo eni ern tede eras 9 Figure 3 2 Non reflection Event asessorin an eiii ini iia ie aaa sa 9 Fi
51. th press Enter to change wavelength as shown in Figure 3 13 18 User s Manual for OTDR picasa rJ Range Auto al PulseWidth Auto 2 Avg Time 1310nm J d Meas Mode Averaging VFL Off n Length Units Meter m t IOR 1 4666 Scat Coef 52 1dB Nrefl Thre 0 20dB r A Refl Thre 52 00dB A R End Thre 3 00dB YB IOK 1 4000 waveiengun 155Unm ui Figure 3 13 Wavelength Configuration 3 4 3 2 6 Measurement Mode Configuration There are two kinds of measurement mode Averaging and Real time mode Under Real time Mode OTDR will undertake realtime measurement for the connector of exterior fiber and refurbish the measure trace While under Real time Mode press key Run Stop to stop otherwise it will measure all along Under Averaging Mode OTDR will average the data within the measure time which is set by user While exceeding the set time it will stop automatically and display the result Generally we suggest Averaging Mode Under menu of parameter configuration use and V to highlight Measurement Mode Press Enter to choose Averaging mode or Realtime mode as shown in Figure 3 14 Press L to exit ez Range Auto zl PulseWidth Auto 2 M Avg Time 30s Wavelength 1550nm s Averaging gt VFL Off n Length Units Meter m f IOR 1 4666 Ed Scat Coef 52 1dB 4 amp Nrefl Thre 0 20dB r A Refl Thre 52 00dB v R End Thre 3 00dB d IOK
52. to Off Color I Ta amp Lang i amp r A LCD Contrast Color 3 b R Black White YB IUK 1 4000 Wavelengtn 122Unm ill Figure 3 27 Color Mode Setting Use A and V to highlight suitable color mode setting press Enter to confirm the selection 3 4 3 2 20 Default Set This function is used to set OTDR parameters to factory settings Those parameters include range pulse width average time IOR non reflection threshold reflection threshold end threshold and scatter coefficient Under parameter configuration use Ag and V to highlight Load default press Enter to enter as shown in Figure 3 28 Press AK to exit 26 User s Manual for OTDR IOR 1 4666 al Scat Coef 52 1 dB A Nrefl Thre 0 20dB Refl Thre 52 00dB El End Thre 3 00dB d Delete File n Time y m d 2005 05 27 10 30 20 Ps Auto Off Off In Lang i amp English X 8 LCD Contrast m n Color Mode No V zm IOK 1 4000 Wavelengtn 152Unm i Figure 3 28 Load Default Use A and V to highlight yes or no press Enter to confirm 3 4 3 2 21 Help Users can get the quick reference via Help menu Under parameter configuration Use 4 and V to highlight Help Press Enter to enter as shown in 3 29 a b c Press a i to exit 30 554 4 Scat Coef 52 1dB al k Nrefl Thre 0 20dB z Refl Thre 52 00dB End Thre 3 00dB al Delete File i Time y m
53. wn in Figure 3 20 Press L to exit 055 77 Range Auto J PulseWidth Auto E Avg Time 30s f Wavelength 1550nm zt Meas Mode Averaging a VFL Off Lr Length Units Meter m It IOR 1 4666 Scat Coef 52 1dB Rs Nrefl Thre 0 20dB e A RE 50048 R End Thre 3 00dB d IOK 1 4000 Wavelengtn 122Unm i Figure 3 20 Reflection Threshold Configuration Use 4 and Ld to adjust the position of highlights use A and V to change the digits After setting press Enter to confirm 22 User s Manual for OTDR NOTE The default setting is 52 00dB 3 4 3 2 13 End Threshold Configuration This threshold is the end threshold of optic fiber If the end threshold equals 3 0dB then the first event with insertion loss GE 3dB will be considered as the end of the optic fiber If the value is set to OdB there will be no end threshold Under parameter configuration use 44 and W to highlight End threshold press Enter to enter as shown in Figure 3 21 Press au i to exit E 2 Range Auto J PulseWidth Auto a li Avg Time 30s 7 Wavelength 1550nm all Meas Mode Averaging L VFL Off L Length Units Meter m IOR 1 4666 d Scat Coef 52 1dB Ar g Nrefl Thre 0 20dB r A Refl Thre 52 00dB b R EE 1 0048 d IOK 1 4000 Wavelengtn 122Unm jill Figure 3 21 End Threshold Configuration Use 4 and Ld to adjust the position of highlights use A and V t

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