ADInstruments AD5000 Manual Download Page 66

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8.0

VFL(Visual Fault Locator) Module

AD5000 equipped with VFL module(650nm) to simply detect broken point of
optical network

VFL interface

VFL module has two modes:

Launching continuous wave

（

650nm

）

2Hz

Launching 2Hz modulated wave

（

650nm

）

Press "Quit" to quit VFL interface

Warning

Don't direct the optical port to human eyes !

VFL launching port

Summary of Contents for AD5000

Page 1: ...1 AD5000 OTDR Manual ...

Page 2: ...n arises during operation Note The contents of this manual are subject to change without prior notice as a result of continuing improvements to the instrument s performance and functions The figures given in this manual may differ from those that actually appear on your screen Every effort has been made in the preparation of this manual to ensure the accuracy of its contents However should you hav...

Page 3: ... and or other countries Adobe and Acrobat are trademarks of Adobe Systems Incorporated For purposes of this manual the TM and symbols do not accompany their respective trademark names or registered trademark names Other company and product names are trademarks or registered trademarks of their respective holders Version Version 1 0 2012 ...

Page 4: ...ng Strip 1 7 Manual 1 Module OTDR optional accessary showed in next table Num Item Specification Description 1 U disk USB 2 0 Optional 2 OTDR module Standard 3 VFL module 1mw 5mw7mw Standard 4 Optical power meter module 5dBm 50dBm Optional 5 Optical source module 1310nm 1550nm Optional All changes with standard accessary and optional accessary prices are subject to change without notice ...

Page 5: ...cified by Gradway to charge the battery pack If the fast charge does not finish after three hours or more stop charging the battery pack immediately To prevent the possibility of electric shock and accidents always turn OFF the power switch and remove the AC adapter power supply from the instrument when replacing the battery pack Do not throw the battery pack into fire or apply heat to it This can...

Page 6: ...n carrying the instrument hold it firmly by the handle Also if storage media is inserted into the instrument always remove the storage media before carrying or moving the instrument Never leave the media inserted when carrying or moving The storage media can become damaged Apply Correct Signals to the Optical Connectors Do not apply light that is 10dBm or greater to the FHO 5000 optical Connectors...

Page 7: ...dangerous locations on the instrument which require special instructions for proper handling or use The same symbol appears in the corresponding place in manual to identify those instructions Recycle Stand by power Direct current Hazard radiation of laser apparatus Comply WEEE Waste Electrical and Electronic Equipment Directive 2002 96 EC ...

Page 8: ...2 Content of Measurement 26 2 3 Analyze of Curve 26 2 4 Fundamental of OTDR 30 2 5 Event Type 32 3 0 Setting Measurement Conditions 34 3 1Setting to Auto Mode 35 3 2Setting to Manual Mode 36 4 0Making Measurements 38 4 1 Averaging test mode 38 4 2 Realtime test mode 39 4 2 1 Setting wavelength 40 4 2 2 Setting test range and pulse width 40 4 3 Event List 41 4 4 Distance Measurement 43 4 5 OTDR Opt...

Page 9: ...2Loading Curve s 61 6 3Deleting Curve s 61 6 4Copying Moving Curve s 61 6 5File Setting 62 6 6Print screen 64 7 0Entering Characters 65 7 1 Renaming 65 7 2 Creating Directory 65 8 0 VFL Visual Fault Locator Module 66 9 0Optical Power Meter Module Optional 67 10 0 1310nm 1550nm Laser Source Module Optional 67 11 0 OTDR2Module Optional 67 12 0 Software Update 68 13 0 Background Information on Measur...

Page 10: ...agnosis Center 73 15 1 FAQ 73 15 2 Help information 75 16 0 Specification 76 16 1 Physical Parameter 76 16 2 Test Index 76 16 3 Dimension 77 17 0 Warranty 78 17 1 Terms of Warranty 78 17 2 Exclusions 78 17 3 Transportation 78 17 4 Customer Service and Support 79 ...

Page 11: ...ts 0 1 Front Panel Num Item Function I Tag select button F1 F 5 Enter relevant menu II Direction key Move cursor and confirm III FILE Open Database IV SETUP Proceed quick set V ON OFF Turn on off OTDR VII XI X III IV IX V I VIII VI II ...

Page 12: ...VIII REAL TIME Realtime test mode IX TEST Averaging test mode X Test State Indicator Indicate test state green averaging mode red realtime mode XI Power Indicator Indicate working state and charging state Green working state or fully charged Red charging ...

Page 13: ...Connect external device like U disk keyboard and mouse III Sub USB mini USB Remote control through PC IV Internet Access Connect to internet V VFL visual fault locator port VFL module port VI OTDR port OTDR module port VII PM Power Meter Power meter module port I II III IV V VI VII VIII ...

Page 14: ...14 port optional VIII OTDR2 port optional Reserved port ...

Page 15: ...15 0 3 Back Panel Num Item I Warning label II Battery compartments III Supporting plate I III II ...

Page 16: ...16 0 4 Side Panel Num Description I Handle belt buckle II Fenders I II ...

Page 17: ...in Menu Interface Num Function Description I Side menu Enter relevant interface II Function Modules Area Enter relevant module III Basic State Information Area Display information of date time and power II I III ...

Page 18: ... 0 6 OTDR Module Interface Num Function Description I Thumbnail of current curve For user s reference to the integrated curve II Curve display and operating area Display events and curves III I II IV I II ...

Page 19: ...stance Km Loss dB T Loss dB Slope dB km and Reflection dB IV Test condition information area Display condition information of test including PW Pulse width WL wavelength resolution of X axis and Y axis dB div distance averaging and total loss from cursor A to cursor B ...

Page 20: ...20 0 7 VFL Module Interface Num Function I VFL mode indicator II Launching state indicator II I ...

Page 21: ...21 1 0 Preparation 1 1 Attaching the Belt Procedure 1 Introduce belt through the buckle 2 Put on the sheath 3 Introduce belt through another buckle 4 Fix the belt ...

Page 22: ...y Using AC adapter Once connect to AC adapter power indicator turns red if it is not fully charged adapter is charging the battery after fully charged power indicator turns green Connect to adapter after shut down AC adapter Patchcord ...

Page 23: ...attery 3 Close the cover rotate buckle clockwise to close Caution Ø Proper charging temperature is 10 50 high charging temperature may shorten battery life Ø Charging time is about 5 hours with power on about 3 hours with power off Ø Don t charge battery more than 8 hours ...

Page 24: ... Proceed realtime test Red light Proceed averaging test Power state indicator Green light Working state or fully charged Red light Charging state Power Indicator Caution Ø In case of low power special icon will appear and after that for a while AD5000 will turn off automatically Ø If it has not been used for an extended period of time AD5000 will turn of immediately after turned on to protect the ...

Page 25: ...arefully to clean the contaminant 4 Repeat procedure 1 and 3 5 Open the protecting cover of optical port 6 Insect connector into optical port carefully Caution Insect connector carefully into optical port unproper operation may cause the damage of optical port Cleaner Warning Before connection make sure that there is no optical signal exist inside the fiber any signal which is larger than 30dBm wi...

Page 26: ... Ø Optical attenuation coefficient of a optical fiber Ø Single event loss such as the loss of a connection or a macro bending Or the loss of a end to end line on the tested optical fiber 2 3 Analyze of Curve OTDR can auto analyze a tested trace the position process shows below Ø Get the reflection events generated by connectors or mechanical splicer Ø Non reflection events usually it is splicing p...

Page 27: ...a tested trace this may be caused by a connection point or some other reasons Anyway appearance of the reflection peak shows that the two connecting surfaces of the connection are smooth The smoother the connection surfaces are the higher the reflection peak is For an instance if a broken optical line is under test the OTDR trace will show a broken point After a maintenance of this line use the OT...

Page 28: ...tance of the broken point of the from the initial connection is too close Curve with Non reflective Event There is a common phenomenon that an obvious step is on the middle of a tested trace it often caused by a fiber bending fiber knot being pressed by something heavy or a fuse splicing point The step means a bigger loss of a fiber it is also called event point If the direction of it is downward ...

Page 29: ...his phenomenon is often used in maintenance If a fiber is uncertain we can bend a fiber and make sure the bending radius is over limited then use real time testing function of the OTDR to confirm the fiber Distance is Too long This situation often happened in a long distance testing caused by under range dynamic range of the OTDR that the energy of it can not support a long distance transmission o...

Page 30: ...ter of time This is the derivation of TD in OTDR Time Domain These back scattering signals shows the loss level of a fiber and through these information OTDR can generates a backward oblique trace which reflects several important attributes of a optical fiber When the light transmitting downward along the fiber meet a different density medium a part of the light will be reflected this phenomenon i...

Page 31: ... fiber specified by manufacturer When display the whole trace each point of the trace represents the average value of several sampling points By zoom in and zoom out function the value of each sampling point can be got Working Principle of OTDR ...

Page 32: ...nector of a fiber of a fiber It is a Reflection event End event The End Event on a OTDR trace is the end point of a fiber Under the default setup End Event is located on the last event usually it is an end face or a broken down point of a fiber Usually it is a Reflection event Reflection event The phenomenon on a trace that some power of the optical pulse is reflected called a reflection event Ref...

Page 33: ... from the event is the longer the returning time is cost According to the receiving time distance can be calculated By detecting the trace generated by the returned optical signal the attributes of the fiber itself the connector of the fiber adaptor in the fiber and splicing point in the fiber can be confirmed ...

Page 34: ...Noise Ratio but takes more time Test Range Test distance of OTDR adjust only in manual mode in auto mode this item set as Auto Pulse Width Wider pulse has stronger backward signal OTDR has longer detecting distance but wide pulse width will cause the saturation of backward signal make blind area bigger so the selection of pulse width has close relationship with the length of fiber Long fiber has w...

Page 35: ...etting proper wavelength Procedure Caution Auto test mode is not suitable to proceed Blind area test user should enter Manual mode and choose Blind area test to proceed blind area test 1 Press SETUP button to enter Test Setting interface 2 Set Auto mode 3 Set test wave SETUP ...

Page 36: ...g to Manual Mode In manual mode user could set proper range and pulse width manually Procedure 1 Press SETUP button to enter Test Setting interface 2 Set Manual mode SETUP 3 Set test wave 4 Set range and pulse width ...

Page 37: ...se proper pulse width automatically Ø When Test Range set to Auto test will choose proper range automatically Ø Once you set the Test range Pulse width item will adjust automatically you could also adjust manually Range PW 500m 2km 5km 10km 20km 40km 80km 120km 160km 3ns 5ns 10ns 20ns 50ns 100ns 200ns 500ns 1000ns 2000ns 5000ns 10000ns ...

Page 38: ...Averaging test mode Averaging test mode can calculate the data of curve over a period of time and display as a averaging one test time could set Test Time in Test Setting Press TEST button on the control panel test state indicator turns red enter averaging test interface Averaging test interface TEST ...

Page 39: ...ode Realtime test mode could check network adjust test range and pulse width in real time Press REALTIME button on control panel test state indicator turns green enter realtime test interface Realtime test interface REALTIME ...

Page 40: ...rocedure 1 Select wavelength WL tag to set wavelength 1310nm or 1550nm 2 Confirm by OK button 4 4 2 Setting Test Range and Pulse Width Procedure 1 Select tag Params to set Test range range and Pulse width PW 3 Confirm by OK button ...

Page 41: ...escription of items showed in chart below Num Item Description I Type Type of event Attenuation events Reflection events and End event II Distance Distance from start point to event III Section Distance from this event to last event IV Loss Loss of this event dB V T Loss Total loss from start event to this event dB Event 2 Event 1 Reference point Event List ...

Page 42: ...42 VI Slope dB km Ratio of event loss value dB from this event to last event to distance km distance from this event to last event VII Reflect dB Return loss of this event dB ...

Page 43: ...sor A or B move left move right 3 Get information by following the guide below Indicate distance of cursor A and cursor B which relative to the reference point start event relative distance km and loss dB between cursor A and cursor B Resolution of X axis and Y axis current pulse width and wavelength Reference point Loss between Cursor A and Cursor B ...

Page 44: ...lind area In the same way we could use this way to figure out the character of last connector 2 About guide fiber Proper length of Guide fiber is 100 1000m it depends on the blind area of OTDR In theory minimum length of guide fiber should be two times longer than attenuation blind area but it should be longer in practice Guide Fiber Reflection Event Connecting Flange ...

Page 45: ...an testing fiber Take note that testing range should not has large difference with testing fiber Otherwise it will affect the effective resolution and overlarge testing range will result in the generation of huge and useless data see Figure 1 Figure 1 Setting proper pulse width Pulse width and blind area dynamic range are directly related to the maximum length in below picture use ten different pu...

Page 46: ... Proceed test with same fiber but different wavelength we will get different result Longer the testing wavelength is more sensitive of the bending in below chart first splicing point has bending problem splicing loss value under 1550nm is bigger than that under 1310nm the other points are similar with 1310nm and 1550nm This phenomenon indicate that this fiber is just bended at the first point If i...

Page 47: ...47 Figure 5 Set proper test time In averaging mode long testing time could reduce noise during the data sampling and Improve precision to get better and smoother curve see Figure 6 Figure 6 ...

Page 48: ...face press F4 button to switch between Curve and Event expend each section after switch this function could also switch between cursor Curve and selection tag Event Procedure In test interface 1 Press F4 button to switch from curve to event windows 2 Control or to move selection tag Original event window Event window became larger ...

Page 49: ...vent list Num Item Description I Type Type of event attenuation event Reflection event or end event II Distance The distance from start event to this event Km III Segment The distance from this event to last event Km IV Loss Loss of this event dB V T Loss The loss from start point to this event dB VI Slope Ratio of loss from last event to this event to distance from last event to this event VII Re...

Page 50: ...Test interface press F1 button cursor tag turns yellow means it has been activated 5 2 2 Moving Cursor Sequence of cursor switching Set proper cursor press button to move current cursor long press to move cursor faster F1 F2 F5 Cursor A Cursor B Cursor AB F3 F4 ...

Page 51: ...izontal Zoom Procedure In Current Test interface 1 Press F2 button to activate Zoom function 2 Control button to zoom in or zoom out curve Zoom in curve Zoom out curve 3 Press OK button to reset curve 缩放_水平原始 Original After operation ...

Page 52: ...Vertical Zoom Procedure In Current Test interface 1 Press F2 button activate Zoom function 2 Control button to zoom in or zoom out curve zoom out zoom in 2 Press OK button to reset curve Original After operation ...

Page 53: ...orizontal Shift Procedure In Current Test interface 1 press F3 button activate shift function 2 Control button to move right or left move right move left 3 Press OK button to reset curve original After operation ...

Page 54: ... 3 4 Vertical Shift Procedure In Current Test interface 1 Press F3 to activate shift function 2 Control button to move up or down move up move down 3 Press OK button to reset curve Original After operation ...

Page 55: ...interface 1 Press F1 button to activate cursor function 2 control to move cursor A or B left or right 3 Move to event 2 4 Press F2 button to active Zoom function 5 Control button to zoom out event cursor as the center 6 Press F3 button to activate shift function 7 Control button to adjust to a proper position 事件 4 放大后波形 Event 2 Reference point Event 1 ...

Page 56: ...t curve displayed in yellow Procedure In Current Test interface 1 Press F2 button active switch function 2 Control button to switch between curves switch to above curve switch to below curve 3 Press OK button to reset all curves After on operation curve A switch to curve B B Curve C Curve A Curve ...

Page 57: ...as been selected Ø Remove Other Trace Remove the Curve s which has not been selected Ø Remove All Remove all the Curves Caution Display maximum 8 curves at one time if load more than 8 curves last curve will recover the former one please refer 6 2 Load Curve for learning how to load curve s After another operation curve B switch to curve C ...

Page 58: ...on to activate tag move cursor to the target event Target event 3 Press F4 Remove Event tag to remove event After operation cursor jump to next event 2 Press F5 button to select Next Page tag After operation this event in the event list disappear Appear by pushing Next page tag ...

Page 59: ... select Next Page tag Please refer last section5 6 Remove an Event 3 Press F3 to add event Caution Event addition may not operate successfully for too close to another event user could move cursor a bit away from near event and have another try Target event After operation this event will appear in the event list sequence will be rearranged ...

Page 60: ...o choose file and subfile then press OK 2 Press F5 button to enter File Operation interface user can change way of saving decide way of naming and check memory state 3 Press F2 Save tag to save current curve as default name set in Filename Type under File Setting interface 4 If user want to change a name before saving press F3 Save As tag to input your ideal name refer section7 0 Entering Characte...

Page 61: ...ress F4 Load tag to load curve s 6 3 Deleting Curve s Procedure In File Operation interface 1 Select the curve file s which you want to remove 2 press F1 file operation select delete sub menu to delete curve file s 6 4 Copying Moving Curve s Procedure In File Operation interface 1 Select the curve file which you want to remove 2 Press F1 File operation select Cut or Copy to move or copy curve file...

Page 62: ... Modify prefix of file name Save Path Modify the save path of files File Operation Back to File Operation interface Quit Quit current interface Item Description Filename Prefix of file name modify by Filename tag menu AutoSave Path Save path of auto save Filename Type Naming way of files after auto save ...

Page 63: ...uence number of next test and auto increment after each test Create folder by date Set create folder by today s date and save files separately into them Split char Set the type of separator Auto save Set Auto save ...

Page 64: ...save as BMP format file Procedure 1 Press Next page tag under test interface 2 Press F2 button to capture User could check captured screen in File Operation by pushing FILE button Caution User could change save path under File Setting refer section 6 5 Save Path ...

Page 65: ...target file 2 Press F1 File Operation select Rename 3 Input name 4 confirm by OK 7 2 Creating Directory Before create a folder system will inquire you to input a name Procedure In File Operation interface 4 Select your target folder or root directory 5 Press F1 File Operation select Create Directory 6 Input name and confirm by OK on visual keyboard Virtual Keyboard Delete All Storage Path Text Edi...

Page 66: ... 650nm to simply detect broken point of optical network VFL interface VFL module has two modes CW Launching continuous wave 650nm 2Hz Launching 2Hz modulated wave 650nm Press Quit to quit VFL interface Warning Don t direct the optical port to human eyes VFL launching port ...

Page 67: ...67 9 0 Optical Power Meter Module Optional 10 0 1310nm 1550nm Laser Source Module Optional 11 0 1625 nm OTDR2 Module Optional ...

Page 68: ... patch storage in root directory Procedure 1 Download patch from PC and storage into U disk must storage in root directory 2 Insert U disk into USB port 3 Turn on AD5000 press F5 to enter system setting press F2 to proceed upgrades Upgrades interface1 Upgrades interface2 ...

Page 69: ...69 13 0 Background Information on Measurements 13 1 Viewing the Optical Pulse Measurement Waveform ...

Page 70: ...ue to axis offset and angle offset Reflection due to connector connection Unlike the fused section a slight gap occurs in the connection section of connectors Because the group refraction index changes in this gap a reflection occurs causing a loss Fresnel reflection at the far end of the optical fiber cable Fresnel reflection occurs at the location where the optical fiber cable is broken or a loc...

Page 71: ...efore cleaning Ø 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 Ø Be cautious of electric shock and make sure AC power is disconnected from the instrument before cleaning Always use dry or moist soft cloth to clean the outside of the instrument and never touch inside Ø Don t proce...

Page 72: ...ceramic core 5 Screw on the cap Structure of optical port 14 4 Calibration We suggest to calibrate AD5000 OTDR twice a year for more information please contact us check section 18 4 Customer Service and Support to find our contact information Caution Be careful don t use tools like plier it may cause permanent damage to optical port ...

Page 73: ...ness need to be adjusted 2 Connection between display and motherboard is not good 1 Adjust brightness 2 Open and reconnect Battery does not work properly 1 Temperature is too high 2 Connection is not proper 3 Battery is nearly broken 1 Try to decrease temperature 2 Reconnect battery 3 Replace a new one Power state indicator turns yellow Battery has broken Replace a new one Measuring graphic only h...

Page 74: ...large plus width long range and short link condition 2 Common ghost caused by continuous reflection of connector 1 Use proper measuring range and pulse width setting 2 Reconnect fault point of Reflection event reduce reflection strength ...

Page 75: ...15 2 Help Information AD5000 has an build in manual with essential information Procedure Turn on OTDR 1 Press F5 enter system setting press F4 to read manual Control button to flip over 2 Press Esc to quit ...

Page 76: ... 500times Power DC9 12V 4A Charging time 4 5hours Shock resistance Bear 1 2m free fall 16 2 Test Index Dynamic range 40dB 38dB 1310nm 1550nm 38 dB 1625 filtered Working wavelength 1310nm 1550nm 1625 nm Event blind zone 1 m Attenuation blind zone 4m 5m 1625 nm Test mode Auto mode and Manual mode Pulse width 3ns 5ns 10ns 20ns 50ns 100ns 200ns 500ns 1us 2us 5us 10us Test range 100m blind zone test 50...

Page 77: ...77 ...

Page 78: ...78 16 3 Dimension Top view Front view Side view 侧视 Units mm Except where noted tolerance default as 3 if size 10mm tolerance 0 3mm ...

Page 79: ...ion To return instrument for reasons of yearly calibration or other please contact us to obtain additional information and RMA code 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 maintenance please note the following Ø Pack the instrum...

Page 80: ...7 4 Customer Service and Support ADVANCED DIGITAL INSTRUMENTS SL Address Cardeña 9 Local 2 28053 Madrid Spain Tele 34 916613037 Fax 34 916614917 Email info adinstruments es Web www adinstruments es END LINE ...

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