Senter AV6418 OTDR Скачать руководство пользователя страница 148

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SIE-CNTEP-1100002104-2014
LCFS

AV6418 OTDR

144

Click the touch screen, then calibrating touchscreen is

finished.

13. Common Faults and Treatment

Below are the possible faults of instrument and solutions:

Table 8-1 Fault and Treatment

Faults

Causes

Solutions

Instrument fails to

start

Out of battery

Charge the battery

Not connected to

external

power supply

Use AC/DC Adapter to

supply power.

Button fails to

respond

Check if any

button is kept

pressed.

Make sure no button

is kept pressed.

Length of optical

fiber measured is not

accurate

a. Refractive

index of optical

fiber is not set

accurately

b. Fiber cable

’

coefficient of

correction is not

set

accurately

a. Set the refractive

index of optical fiber to

the refractive index

calibrated by fiber

manufacturer.

b. Set fiber cable

’

coefficient of

correction to

1.0000 or to the

coefficient of

correction

calibrated by fiber

cable manufacturer.

Página No.156 LCFS

CONVALIDACIÓN DE ERRORES DEL PROCESO:

“ADQUISICIÓN DE OTDR (OPTICAL TIME DOMAIN REFLECTOMETER) – REDES GPON/
FTTH/ SDH"

Содержание AV6418 OTDR

Страница 1: ...104 2014 LCFS AV6418 OTDR AV6418 OTDR User Manual Shandong Senter Electronics Co Ltd ANEXO3 Página No 9 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 2: ...ase read this Guide carefully for convenient use We will assume trying our best to meet your needs as our responsibility to provide high quality measuring instruments for you and also bring you first class after sale services We always persist in Good Quality Satisfied Service and promise to offer satisfied products and service for you Página No 10 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISI...

Страница 3: ... merchantability and adaptability for a particular purpose SENTER shall not be liable for errors contained herein or for incidental or consequential damages due to the practibility of this material or version The copyright of the Guide belongs to Shandong Senter Electronic Co Ltd Other entities and individuals can t change or juggle it without our permission and don t copy and spread including ele...

Страница 4: ...de Self disassembly may lower electromagnetic shielding efficiency and cause damage to the instrument etc to affect the reliability of the product If under warranty we will not provide free repair Página No 12 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 5: ...ion of Instrument Panel 21 3 1 Front Panel of Instrument 21 3 2 Right Panel of Instrument 21 3 3 Back Panel of Instrument 22 3 4 Description of Panel Keyboard and Active Display 22 4 Description of Rechargeable Battery 22 Chapter 2 Main Screen 24 Chapter 3 Optical Power Meter Module 26 Chapter 4 Optical Source Module 30 Chapter 5 Visible Fault Locator Module 33 Chapter 6 Audio Detection Module 34 ...

Страница 6: ...nditions 65 1 3 Test Fiber Link 105 1 4 Analyzing Waveform Trace and Checking Event Table 108 2 Operation for Cursor and Test Trace 113 2 1 Move Cursor 113 2 2 Set Active Cursor 114 2 3 Zoom in out and Initialize Waveform Trace 114 2 4 Move Waveform Trace Vertically 115 3 Measure Fiber Length and Loss 115 3 1 Measure Fiber Length 115 3 2 Measure Fiber Average Loss 116 3 3 Measure Splice Loss 118 3...

Страница 7: ...r 9 Operating Principle 149 1 Operating Principle 149 2 Description of Event Point Type 149 Chapter 10 Technical Parameters 151 1 General Characteristics 151 2 Main Functions 152 3 Main Technical Specification 153 3 1 OTDR Function 153 3 2 VFL Function Option 154 3 3 Optical Power Meter Function Option 154 3 4 Optical Source Function Option 155 3 5 Vibration Detecting Function Option 155 Appendix ...

Страница 8: ...EP 1100002104 2014 LCFS AV6418 OTDR 4 Appendix C AV6418 Ordering information 165 Página No 16 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 9: ... with these requirements ENVIRONMENTAL CONDITIONS Refer to the Chapter 10 Technical Parameters for the operating and storage environment of the instrument POWER SUPPLY Refer to Chapter 10 Technical Parameters for the requirements for working power supply of the instrument Before power on please make sure the instrument has been set to match available supply voltage and all safety precautions have ...

Страница 10: ... It calls user s attention to a procedure operation mode or the like Failure to correctly operate or adhere to rules could result in personal injury or damage to the instrument Caution It calls user s attention to a procedure operation mode or the like Failure to correctly operate or adhere to rules could result in damage to all or part of the instrument Note It gives the information helpful for t...

Страница 11: ...ng heat to avoid explosion Laser Safety 2 Although up to safety standards the output intensity of the laser of the instrument still may damage eyesight so it shall be prevented from directly shooting at eyes Please don t directly look into the optical output connector of OTDR with eyes or even the optical fiber tail during testing When the VFL function of the instrument is activated please don t d...

Страница 12: ...battery performance the instrument shall be powered with internal battery first at the beginning of use until the battery is exhausted and then it can be charged 2 3 times 2 If the battery has been in storage for a long time it shall be charged and discharged circularly as above for the first time use to achieve an optimum performance 3 In order to prolong the life of internal battery remove exter...

Страница 13: ...s shorter than or equal to 6 months of battery 20 60 6 The temperature range of charging battery is 5 40 If ambient temperature is too high or too low charging will stop automatically which will cause unfilled charge 7 The time of charging may not be too long Otherwise it will reduce battery life and even damage it 8 To achieve better performance and more accurate battery capacity indicator please...

Страница 14: ...clean and avoid polluting the optical output connector with factice etc contaminant otherwise it will cause measurement error and even that the instrument is incapable of testing optical fibers 3 If possible please make the end of the optical fiber under test point to an unreflected object during testing Maintenance 1 Please pack this instrument in original packing material when shipping to avoid ...

Страница 15: ...rements Validity of technical parameters depends on environmental conditions Calibration validity period can be longer or shorter depending on the intensity environmental conditions and instrument maintenance You should determine an appropriate calibration validity period according to your needs Under normal use we recommend to calibrate AV6418 Optical Time Domain Reflectometer once every year Ple...

Страница 16: ...air company The disassembly and repair of this instrument by any other company or individual are all illegal which will void warranty to the instrument and meanwhile Shandong Senter Electronic Co Ltd reserves the right to pursue offender s legal responsibility 6 Unauthorized disassembly will void the warranty of the instrument automatically Removal of fastening screws or seals will void the warran...

Страница 17: ... original case when shipping 3 In case of use of other case please make sure there is at lease 3cm thick soft padding around the instrument to absorb the impact of external force 4 Please write the address telephone description etc in detail when returning 5 Please secure the case with tape well before shipping 6 The damage due to improper packing during returning is not within the scope of warran...

Страница 18: ...uplex operation mode of touchscreen and key press simple and convenient easy to learn and easy to use there is advanced antireflection LCD display unit inside and the operating interface is also visible even outdoor the whole instrument has 4 optical ports to realize the optical power meter VFL and single mode multimode testing functions the types of which can be changed at random in convenience f...

Страница 19: ...r n Many test modes touchscreen and shortcut operation n Communication light auto monitoring function n Double USB ports for connection of external USB disk printer and communication with PC via Sync Active software n Support Bellcore GR196 and SR 4731 file formats n WinCE windows operating system an operating interface with many languages n Built in optional visual fault locator VFL optical power...

Страница 20: ...DR are showed in Table 1 2 Table 1 2 Optional Modules of AV6418 OTDR Module No 1 Operating Wavelength Optical Fiber Type Dynamic Range2 dB Event Dead Zone 3 m Attenuation Dead Zone3 m AV6418 1101 1 310nm Single mode 45 2 10 AV6418 1102 1 550nm Single 43 2 10 Software CD with life time license and upgrade 1 Engineering plastic case for outdoor Multifunctional fiber adapter SC ST LC 1 Mainframe AV64...

Страница 21: ...418 1107 1 490nm Single mode 36 1 10 AV6418 1108 1 383nm Single mode 36 1 10 AV6418 1201 850nm Multi mode 26 2 5 15 AV6418 1202 1 300nm Multi mode 36 2 13 AV6418 2101 1 310 1 550n m Single mode 42 40 2 2 10 10 AV6418 2102 1 310 1 550n m Single mode 40 38 1 1 10 10 AV6418 2103 1 310 1 550n m Single mode 37 35 1 1 10 10 Página No 29 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTIC...

Страница 22: ...5 13 39 34 38 1 1 1 10 10 10 39 38 36 1 1 1 10 10 10 built in filter Single mode 39 38 36 1 1 1 10 10 10 Single m Single mode 1 310 20nm AV6418 3104 1 550 20nm 1 625 10nm Single mode built in 37 36 34 1 1 1 10 10 10 1 310 20nm AV6418 3102 1 550 20nm 1 625 10nm 1 310 20nm AV6418 3105 1 310 20nm AV6418 3103J 1 550 20nm 1 625 10nm Single mode mode 1 625 10nm 1 310 20nm AV6418 3101 1 490 20nm AV6418 2...

Страница 23: ... are for an ambient temperature of 23 2 with FC UPC connector unless otherwise specified 2 SNR 1 more than 500 averaging times using 20us pulse 3 Dead zone test mode range 0 8km 5ns pulse reflection loss 40dB typical value 2 3 Optional Accessories The options of AV6418 OTDR are shown in Table 1 3 Table 1 3 Options of AV6418 OTDR No Name Model or Specification Explanation 1 USB disk 2GB Save test d...

Страница 24: ...al fiber patch cord FC UPC to FC APC Optical fiber patch cord 8 Optical fiber patch cord FC UPC to FC APC Optical fiber patch cord 1 The optional modules and options of AV6418 OTDR are subject to change without notice Please dial service consulting phone for relevant details 2 The bold font in this Guide indicates emphatic prompt 3 The bold font with in this Guide indicates the button in operating...

Страница 25: ... Description of Instrument Panel 3 1 Front Panel of Instrument Figure 1 1 Instrument panel 3 2 Right Panel of Instrument Página No 33 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 26: ...e Display Please see section 4 Description of OTDR Panel Key Function of Chapter 7 for details 4 Description of Rechargeable Battery The battery in AV6418 OTDR is special lithium battery 4 1 Batter Indicator and Charge Indicator Página No 34 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 27: ...nnected with external power supply and is using the external power supply to work and meanwhile the battery is charged When the charge indicator does not appear it indicates the instrument is using internal battery to work When the instrument is working with external power supply for charge the power button is red when the battery is charged fully the power button is green when the external power ...

Страница 28: ...ong charging time will affect battery life and even cause damage to it 4 3 Precautions In order to prevent the rechargeable battery from excessively discharging the battery inside the instrument should be charged in time through external power adapter Long time excessive discharge of the rechargeable battery will affect battery life and even cause damage to it Charge indicator Battery indicator Ch...

Страница 29: ...the drop down button of default module to eject a selection box as shown at the left of the above figure press the item required so that the operating interface of the selected module can be entered directly after power on next time l Default Module After selection the selected module interface will be entered after power on next time Key Operation Press to select any one of the five buttons in th...

Страница 30: ...he change Press the time item to be changed in the touchscreen a small button will appear below the item and then press the up and down button via touchscreen to change the selected time item Use to select the time item to be changed and then a small button will appear below the item press to change the selected time item After change press Enter or to confirm the change Chapter 3 Optical Power Me...

Страница 31: ...le the button turns to Stop press this button again to stop power meter test then this button turns to Start Pressing the key on the keyboard can realize the above function Press the key on the keyboard to move active cursor to menu bar as shown in the figure below and then menu item will show a small button Then pressing will start or stop power meter test Página No 39 LCFS CONVALIDACIÓN DE ERROR...

Страница 32: ...n Use to move the small button to this menu item and then press to confirm wavelength change l Setup Enter setup sub menu as shown in the figure below Press the menu button via touchscreen or use the keyboard to realize the function of each button with the same method as above Setup sub menu is also available by pressing the key on the keyboard Página No 40 LCFS CONVALIDACIÓN DE ERRORES DEL PROCES...

Страница 33: ...ct the drop down box for times selection and select times by pressing touchscreen or Reference Set the current measured value as reference value dBm W Set the current test mode as dBm test or mw test Interval Set the interval of saving measured values Selecting Null indicates there is no interval for saving values otherwise a measured value will be saved at the intervals selected Memory SD Set sto...

Страница 34: ...xit from the operating interface of power meter to return to the main screen Notes The memory only can save a power meter data file AV6418 OPM dat therefore when selecting memory as storage path please pay attention to timely outputting data to SD card or USB disk otherwise the original file will be covered for next saving Chapter 4 Optical Source Module If your instrument has the function of opti...

Страница 35: ...cal source module for test meanwhile the button turns to Stop press this button again to stop optical source test then this button turns to Start Pressing the key on the keyboard can realize the above function Press the key on the keyboard to move active cursor to menu bar as shown in the figure below and then menu item will show a small button Then Página No 43 LCFS CONVALIDACIÓN DE ERRORES DEL P...

Страница 36: ...his menu item then press to confirm wavelength change l Mode Change the working mode of optical source The working mode of optical source is CW 270Hz 1kHz and 2kHz Pressing this button will change the working mode of optical source Press the key on the keyboard to move active cursor to menu bar and then menu item will show a small button Press to move the small button to this menu item then press ...

Страница 37: ... VFL as shown in Figure 5 1 Figure 5 1 Operating Interface Schematic of VFL Module The functions and operations of all menu buttons are described as follows l Start Start or stop VFL module test with the following three methods Press this button to start the VFL module for test meanwhile the button turns to Stop press this button again to stop VFL test then the button turns to Start Página No 45 L...

Страница 38: ...g mode of VFL Press the key on the keyboard to move active cursor to menu bar and then menu item will show a small button Press to move the small button to this menu item then press to confirm the change of working mode l Return Exit from the operating interface of VFL function to return to the main screen Chapter 6 Audio Detection Module If your instrument has the function of audio detection plea...

Страница 39: ...cribed as follows l Start Start or stop audio detection module test with the following three methods Press this button to start the audio detection module for test meanwhile the button turns to Stop press this button again to stop audio detection test then the button turns to Start Página No 47 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GP...

Страница 40: ...he keyboard to reduce volume l Return Exit from the operating interface of audio detection function to return to the main screen Chapter 7 Optical Time Domain Reflectometer OTDR Operating Instruction Press the button OTDR as shown in Figure 2 1 to enter the operating interface of OTDR as shown in Figure 7 1 The operating interface of OTDR is composed of main screen and operating subwindow After th...

Страница 41: ...creen The schematic of main screen is shown in Figure 7 1 Figure 7 1 Main Screen 1 Current system clock 2 Display of test results The contents of displaying correspond to test items Test results are calculated according to the position of current cursor 3 Entirely display trace It always displays the entire waveform of trace 4 Reference point Página No 49 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ...

Страница 42: ...date of current file If the current trace is that saved in the current file it will display the name and storage date of current file 11 Origin distance position The distance between the current set reference origin and the test port of OTDR 1 12 Indicator of connection of external adapter It indicates external adapter has been connected and the instrument is using external power supply to work 13...

Страница 43: ...port of OTDR i e Test origin Ø If a reference origin is set the instrument will save it automatically and it will call out the position of saved reference origin at startup next time 2 Three traces are available simultaneity on the instrument respectively represented by Trace 1 2 3 Ø The analysis movement and calculation of trace only point to current active trace Ø The serial number of current ac...

Страница 44: ...1 press the button Analyse to analyze the current trace and display event list If the current event table has contents press the button Event Table to show event list The event list window is shown in Figure 7 2 Figure 7 2 Event list window All the contents in the event list are shown as follows Página No 52 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTO...

Страница 45: ...rage loss of the optical cable before the current event point 5 Splice Loss dB The splice loss measured at current event point indicates the current tested splice loss value is larger than the set pass threshold of splice loss 6 Reflection Loss dB The reflection loss measured at current event point indicates the current tested reflection loss value is larger than the set pass threshold of reflecti...

Страница 46: ...han the set loss analyse threshold will be ignored 3 The value with indicates this value is larger than the set loss pass threshold 4 If the calculated splice loss is larger than the set breakpoint threshold this point will be taken as the breakpoint of optical cable all the event points after that will be ignored and not be displayed Note 3 Overview of Menu Structure and Function 3 1 Structure an...

Страница 47: ...n to main screen interface of operating module selection etc Setup Enter parameter setup sub menu to realize the functions of OTDR test condition setup reference origin setup optical cable information setup etc Start This button is used to control optical fiber test of OTDR or stop test Pressing this button turns the button to Stop then OTDR will test the optical fiber under test according to the ...

Страница 48: ...nalyze threshold etc Trace 1 Display trace selection window in which the trace number can be selected to switch the current active trace among Trace 1 2 3 Trace 1 is blue Trace 2 is dark green and Trace 3 is red 3 2 Brief Introduction of Operating Subwindow Menu Press menu buttons in the main menu bar to enter different sub menus or executing corresponding function press different sub menu buttons...

Страница 49: ...main screen as shown in Figure 7 5 then the trace enters zooming state so the trace can be zoomed in and out around active cursor Then press the key in navigation keys to zoom out and in race horizontally press the key in navigation keys to zoom in and out trace vertically Página No 57 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH S...

Страница 50: ...ft and right horizontally and the key in navigation keys will move cursor up and down vertically 1 Zooming trace in can display the local details of test trace 2 Pressing the area of entirely display trace in the screen will recover trace to the initial entire display state Note Press this key to directly enter file saving window Página No 58 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN D...

Страница 51: ...ey in navigation keys to select the previous or next menu item and press the key to execute the current selected menu item Press to make active cursor exit from menu bar and return to the trace display area of screen or operation sub menu Start key When the operating interface of OTDR module shows main screen as shown in Figure 7 1 press this key to start OTDR module to test the optical fiber unde...

Страница 52: ...ing to main screen See Chapter 8 How to Use for details l In the main screen the two keys are used to move current active cursor left and right by default l In the main screen the two keys are used to zoom in or out current trace horizontally in zooming state l In subwindow the two keys are used to move active cursor to select different operation item backwards and forwards l In character input su...

Страница 53: ...the place of quadrate cursor in edit window l In file transfer subwindow key is used to mark the file selected by the cursor bar in current active window source disk l Besides above key is used to confirm current operation and return to main Screen 1 The current active cursor is red and inactive cursor is black 2 In file transfer subwindow only the file with mark can respond to copying deleting et...

Страница 54: ... Set test mode etc test conditions Clean the optical fiber under test Connect the optical fiber under test to corresponding OTDR optical output port Press to obtain the waveform trace of the optical fiber under test After test stops If in auto test mode or auto analyse after sampling the instrument will analyze trace automatically mark event points according to the set loss analyse threshold and g...

Страница 55: ...o test it will perform analyse automatically and give event list after test stops 2 After trace analyse is finished The event point with splice loss larger than loss analyze threshold will be displayed the event with splice loss less than loss analyse threshold will be ignored automatically In event list the event point with splice loss and reflection loss larger than the set loss pass threshold w...

Страница 56: ... and average test modes are all manual ones which requires users to set test conditions by themselves i e range pulse width and attenuation the instrument will perform test according to the user s set test parameters 2 In auto test mode the instrument will automatically set 1 1 1 Test Modes of OTDR The test modes of OTDR include auto test real time test average manual test and dead zone test Págin...

Страница 57: ...y analyze trace and then display trace and event list in main screen l Real Time Test In real time test mode press or press the button Start in main menu bar then the menu button Start turns to Stop OTDR will perform real time scanning test to the link of optical fiber under test according to currently set test conditions the trace in main screen will be refreshed continuously and until is pressed...

Страница 58: ...s to Start to stop test l Dead Zone Test The test conditions are fixedly set to range of 400m pulse width of 5ns and attenuation of 20dB Minimum test dead zone can be obtained in this test mode but the distance that can be tested is also the shortest one Usually use this test mode to measure shorter optical fiber such as optical fiber jumper 1 Use real time test mode to realize real time observati...

Страница 59: ...x etc l WL Used to set the test wavelength of OTDR The number of wavelengths available for OTDR is determined by the module of the instrument which is 4 for selection maximally In average auto and dead zone test mode it is allowed to select more than one wavelength In test the instrument will perform test in turn under each selected wavelength until all the selected wavelengths are tested before i...

Страница 60: ...d l Att dB Used to set attenuation of signal Attenuation can be set to 0dB 5dB 10dB 15dB and 20dB If value of Att is minimum such as 0dB the fiber length to be tested is maximal but the near end of fiber may be saturation A straight line is displayed in screen If the value of Att is maximal such as 20 dB the fiber length to be tested is minimum and trace SNR is worse but dead zone will be smaller ...

Страница 61: ...ue of times is between 1 and 4000 in average mode The value of times is between 5 and 20 in auto test mode When entirely display trace test function is selected the average times are 1 or 10 multiple such as 1 10 20 30 etc Note Note 1 The larger the average times is the smoother trace is i e SNR is higher especially it is helpful for test of longer fiber 2 Higher trace SNR is more beneficial for O...

Страница 62: ...th after optical fiber is made into cable It can be obtained from optical cable production factory It can be set to 0 80000 1 00000 The default value is 1 00000 Inaccurate optical cable correction setup will result in inaccurate optical cable length l Length Unit The instrument allows users to set length unit to km or kft The default length unit is km l Auto Analyse after Sampling When this item i...

Страница 63: ...ove If this item is only valid during average loss test and reflection loss test during testing splice loss four cursors will appear and this item become invalid In the edit state adding or adjusting event point of event table cursor will be unlocked automatically l On line Test This item is only valid in the module with filter When it is selected the instrument will connect the filter in optical ...

Страница 64: ...optical fiber trace far away from the link under test when the proximal trace is saturated to a straight line the proximal trace can not be displayed as shown in Figure 8 2 Figure 8 2 Fiber Link measurement in not entirely display trace test mode After this item is selected the instrument will adjust test pulse width and attenuation automatically and display the complete trace of fiber link under ...

Страница 65: ...s After test item is selected corresponding test results will be displayed in display l Average Loss Then the test results displayed on OTDR main screen are loss between A and B distance between maker A B and average loss of fiber section between marker A B as shown in Figure 8 4 Página No 73 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON...

Страница 66: ... average loss will have bigger error l Splice Loss Then the OTDR main screen will display four markers and meanwhile test results will include the splice loss at the connection point of marker A the average loss of previous fiber section before connection point and the average loss Página No 74 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GP...

Страница 67: ...ce loss test 1 During splice loss test four markers will appear marker a A B and b in turn 2 2 During test place marker a A on the linear area of fiber trace before connection point with marker A near the Página No 75 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 68: ...nnection point l Reflection Loss OTDR main screen displays the reflection loss of fiber reflection peak of marker A B and the distance between marker A B 1 During test place marker A before the reflection peak Página No 76 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 69: ... splice loss of event point is larger than the set splice loss pass threshold the splice loss value will be marked with Reflection Loss Pass Threshold In event list when the calculated reflection loss of event point is larger than the set reflection loss pass threshold the reflection loss value will be marked with Fiber Breakpoint Threshold If the splice loss of event point is larger than the set ...

Страница 70: ...main screen to enter OTDR test condition setup window Figure 8 7 Press the Setup menu in the main menu bar to enter the setup sub menu and then press Parameter menu to enter OTDR test condition setup window Figure 8 8 Press the Setup key on the following panel to enter Página No 78 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 71: ... 8 9 1 2 2 Set Test Mode Modify and set test mode through the following description Figure 8 10 Set test mode Touchscreen Operation Press Mode option bar the Página No 79 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 72: ...nd exit from the setup interface back to the main screen Key Operation use to move active cursor to Mode option then use to change and set the mode option Finally press key to confirm the setting and exit from the setup interface back to the main screen press key to cancel the modification and return to the main screen Once the Real Time test is selected the average times setting is invalid 1 2 3 ...

Страница 73: ...e set Then press the Enter menu on the option bar to confirm setting and exit from the setup interface back to the main screen press Return menu on the option bar to cancel the setting and exit from the setup interface back to the main screen Key Operation use keys to move active cursor to Item option then use keys to change and set the mode option Finally press key to Página No 81 LCFS CONVALIDAC...

Страница 74: ...er B when the test item is set as average loss or reflection loss 2 There are four markers marker a marker A marker B and marker b when the test item is set as splice loss 1 2 4 Set Test Wavelength Modify and set OTDR test wavelength through the following description Figure 8 12 Set test wavelength Note Página No 82 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN ...

Страница 75: ...ength to test on the contrary before pressing this wavelength has been selected pressing indicates the selection has been canceled Then press Enter menu on the menu bar to confirm the setting and exit from the setup interface back to the main screen press Return menu on the menu bar to cancel the setting and exit from the setup interface back to the main screen Key Operation use to move active cur...

Страница 76: ... this option bar to eject a drop down window with all options as shown in the above figure Now press the option to be set Then press the Enter menu on the option bar to confirm setting and exit from the setup interface back to the main screen press Return menu on the option bar to cancel the setting and exit from the setup interface back to the main screen Key Operation use keys to make active Pág...

Страница 77: ...s of range are 400m 800m 1 6km 3 2km 8km 16km 32km 64km 128km 256km and 512km 2 It should be increased to a value greater than the fiber length best twice than the fiber length 1 2 6 Set Test Pulse Width Modify and set the OTDR pulse width through the following description Figure 8 14 Set test pulse width Touchscreen Operation Press Pulse option bar the Página No 85 LCFS CONVALIDACIÓN DE ERRORES D...

Страница 78: ... the main screen Key Operation use keys to make active cursor to Pulse option then use keys to change and set the mode option Finally press key to confirm the setting and exit from the setup interface back to the main screen press key to cancel the setting back to the main screen Note 1 It is allowed that the selected pulse width is in relation with the test range 2 A larger pulse width can test t...

Страница 79: ...n window with all options as shown in the above figure Now press the option to be set Then press the Enter menu on the option bar to confirm setting and exit from the setup interface back to the main screen press Return menu on the option bar to cancel the setting and exit from the setup interface back to the main screen Key Operation use keys to make active cursor to Att option then use keys to P...

Страница 80: ...lue of attenuation is set as 20dB the testable optical fiber distance is longest and the signal to noise ratio of trace is poor but it can achieve smaller test blind zone 3 Under the manual test mode that means real time test mode and average test mode the test attenuation should be selected according to the optical fiber to be tested 4 When Track history test Mode is selected and the test range i...

Страница 81: ...set the OTDR average times through the following description Figure 8 16 Set average times Touchscreen Operation press the edit box of Times option the active cursor will jump to this option bar at the same time pop up value input interface on this interface Página No 89 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 82: ... edit box left Ø Move the cursor in the edit box right Ø The displayed character on the small button to be input into the position of the cursor in the character edit box Ø Confirm the input value exit value input interface and return to the OTDR test condition setup interface Ø Cancel modification exit from the value input interface and return to OTDR test condition setup interface Press Enter me...

Страница 83: ...nding function execute button function to confirm the modification of the value and exit from the value input interface to OTDR test condition setup interface execute button function to cancel the modification of the value and exit from the value input interface to OTDR test condition setup interface when back to OTDR test condition setup interface press to confirm the setting and exit from the se...

Страница 84: ...on press the edit box of IOR option the active cursor will jump to this option bar at the same time pop up value input interface on this interface press the small button the character on the small button will be input into the position of cursor in the edit box if the small button is not character pressing will execute corresponding function Página No 92 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO A...

Страница 85: ...he input value exit value input interface and return to the OTDR test condition setup interface Ø cancel modification exit from the value input interface and return to OTDR test condition setup interface Press Enter menu on the menu bar to confirm the setting and exit from the setup interface to the main screen press Return menu on the menu bar to cancel the modification and exit from the setup in...

Страница 86: ... or execute the corresponding function execute button function to confirm the modification of the value and exit from the value input interface return to the OTDR test condition setup interface execute button function to cancel the modification of the value and exit from the value input interface to OTDR test condition setup interface when back to OTDR test condition setup interface press to confi...

Страница 87: ...1 00000 2 00000 1 2 10 Set Helix Modify and set the OTDR helix through the following description Figure 8 18 Set helix Touchscreen Operation press the edit box of Helix option the active cursor will jump to this option bar at the Página No 95 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 88: ...the character before the cursor Ø Move the cursor in the edit box left Ø Move the cursor in the edit box right Ø The displayed character on the small button to be input into the position of the cursor in the character edit box Ø Confirm the input value exit value input interface and return to the OTDR test condition setup interface Ø Cancel modification exit from the value input interface and retu...

Страница 89: ...or execute the corresponding function execute button function to confirm the modification of the value and exit from the value input interface return to the OTDR test condition setup interface execute button function to cancel the modification of the value and exit from the value input interface to OTDR test condition setup interface when back to OTDR test condition setup interface press to confir...

Страница 90: ...ill jump to this option bar press the button on this option bar to eject a drop down window with all options as shown in the above figure Now press the option to be set Then press the Enter menu on the option bar to confirm setting and exit from the setup interface back to the main screen press Return menu on the option bar to cancel the setting and exit from the setup interface back to the main s...

Страница 91: ...d return to the main screen 1 2 12 Set Auto Analyse after Sampling Modify and set the OTDR auto analysis after sampling through the following description Figure 8 20 Set auto analyse after sampling Touchscreen Operation press Auto analyse after sampling option the active cursor will jump to this option if this option has not been selected before the checkbox Página No 99 LCFS CONVALIDACIÓN DE ERRO...

Страница 92: ...u bar to cancel the setting and exit from the setup interface back to the main screen Key Operation use to move active cursor to the Auto analysis after sampling option to be selected then use to select or cancel selecting this option Finally press key to confirm the setting and exit from the setup interface back to the main screen press to cancel the modification and return to the main screen Aft...

Страница 93: ...ressing it indicates the option is selected the check box before it displays it indicates to select this option on the contrary before pressing this option has been selected pressing indicates the selection has been canceled Then press Enter menu on the menu bar to confirm the setting and exit from the setup interface back to the main screen press Return menu on the menu bar to cancel the setting ...

Страница 94: ...s key to confirm the setting and exit from the setup interface back to the main screen press to cancel the modification and return to the main screen 1 2 14 Set On line Test Modify and set the OTDR on line test function through the following description Figure 8 22 Set on line test Página No 102 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES G...

Страница 95: ...tting and exit from the setup interface back to the main screen press Return menu on the menu bar to cancel the setting and exit from the setup interface back to the main screen Key Operation use to move active cursor to the On line test option to be selected then use to select or cancel selecting this option Finally press key to confirm the setting and exit from the setup interface back to the ma...

Страница 96: ...entirely display trace mode Touchscreen Operation press among Entirely display trace option the active cursor will jump to this option if this option has not been selected before the checkbox before it will display after pressing it indicates the option is selected the checkbox before it displays it indicates to select this option to test on the contrary before pressing this option has been select...

Страница 97: ...ly display trace option to be selected then use keys to select or cancel selecting this option Finally press key to confirm the setting and exit from the setup interface back to the main screen press to cancel the modification and return to the main screen Only when the test range exceeds 64km this will be effective 1 2 16 Set Loss Analyse Threshold Modify and set OTDR loss analysis threshold thro...

Страница 98: ...on will be input into the position of cursor in the edit box if the small button is not character pressing will execute corresponding function Ø If there is character after the cursor in the character edit box at this time it will delete the character after the cursor if there is not character after the cursor it will delete the character before the cursor Ø Move the cursor in the edit box left Pá...

Страница 99: ...setup interface Press Enter menu on the menu bar to confirm the setting and exit from the setup interface to the main screen press Return menu on the menu bar to cancel the modification and exit from the setup interface to the main screen Key Operation use to move active cursor to Loss analysis threshold option then use to pop up value input interface on this interface select the number button to ...

Страница 100: ...DR test condition setup interface when back to OTDR test condition setup interface press to confirm the setting and exit from the setup interface to the main screen press to cancel modification and exit to the main screen During analyzing trace if the calculated event point splice loss is bigger than the analysis threshold this event point will be marked or it will be neglected automatically 1 2 1...

Страница 101: ...acter on the small button will be input into the position of cursor in the edit box if the small button is not character pressing will execute corresponding function Ø If there is character after the cursor in the character edit box at this time it will delete the character after the cursor if there is not character after the cursor it will delete the character before the cursor Página No 109 LCFS...

Страница 102: ... interface and return to OTDR test condition setup interface Press Enter menu on the menu bar to confirm the setting and exit from the setup interface to the main screen press Return menu on the menu bar to cancel the modification and exit from the setup interface to the main screen Key Operation use to move active cursor to Splice loss pass threshold option then use to pop up value input interfac...

Страница 103: ...value input interface to OTDR test condition setup interface when back to OTDR test condition setup interface press to confirm the setting and exit from the setup interface to the main screen press to cancel modification and exit to the main screen In the event list when the calculated splice loss of the event point is bigger than splice loss pass threshold splice loss value will be marked with 1 ...

Страница 104: ...character on the small button will be input into the position of cursor in the edit box if the small button is not character pressing will execute corresponding function Ø If there is character after the cursor in the character edit box at this time it will delete the character after the cursor if there is not character after the cursor it will delete the character before the cursor Página No 112 ...

Страница 105: ...interface and return to OTDR test condition setup interface Press Enter menu on the menu bar to confirm the setting and exit from the setup interface to the main screen press Return menu on the menu bar to cancel the modification and exit from the setup interface to the main screen Key Operation use keys to move active cursor to Reflection loss pass threshold option then use keys to pop up value i...

Страница 106: ...erface to OTDR test condition setup interface when back to OTDR test condition setup interface press to confirm the setting and exit from the setup interface to the main screen press to cancel modification and exit to the main screen In the event list when the calculated reflection loss of the event point is bigger than reflection loss pass threshold reflection loss value will be marked with 1 2 1...

Страница 107: ...nterface on this interface press the small button the character on the small button will be input into the position of cursor in the edit box if the small button is not character pressing will execute corresponding function Ø If there is character after the cursor in the character edit box at this time it will delete the character Página No 115 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN...

Страница 108: ...R test condition setup interface Ø Cancel modification exit from the value input interface and return to OTDR test condition setup interface Press Enter menu on the menu bar to confirm the setting and exit from the setup interface to the main screen press ESC menu on the menu bar to cancel the modification and exit from the setup interface to the main screen Key Operation use to move active cursor...

Страница 109: ...d exit from the value input interface to OTDR test condition setup interface when back to OTDR test condition setup interface press to confirm the setting and exit from the setup interface to the main screen press to cancel modification and exit to the main screen When the splice loss of event point is bigger than the set optical fiber breakpoint threshold this event point is optical fiber breakpo...

Страница 110: ...width and attenuation scan optical fiber to be tested and display the trace on the operating interface Ø After testing optical fiber trace the instrument will automatically stop scanning and analyze the trace analyze threshold value according to the setting loss mark the event point on the trace at the same time display the event point information on the event table 1 The bigger average times is s...

Страница 111: ...ameter and display the trace on the operating interface Ø Press key to stop sweep test at any time If the test mode is average test or dead zone test the average times displayed in the trace displayer area is equal to the set average times the instrument will automatically stop testing Ø Press Analyse menu item on the main menu bar the instrument will automatically analyze the trace and give event...

Страница 112: ...lyzing Waveform Trace and Checking Event Table Under the mode of Auto Test after testing it will conduct a trace analysis automatically and list the event information in the event table Under the modes of Real Time Test Average Test and Dead Zone Test after stopping the test press Analyse in the main menu bar and it will conduct a trace analysis If Auto analysis after sampling is set after stoppin...

Страница 113: ...t List After the trace analysis is done you can check the content of the whole event table in the sub window of the event list If after the trace analysis is done and no event point has been found then the event list will be blank Ø Touch screen operation Press the menu item of Event Table in the main menu bar and the display window for test conditions in the main screen will be hidden And at the ...

Страница 114: ...ormation will be displayed in list in this window Ø Press to move the cursor upward and downward to select different event points or directly press the item in the event list and the cursor bar will select the pressed item or press the menu item of or in the menu bar and move the cursor bar upward or downward to select different event points Ø Drag the move bar at the right of the event list and t...

Страница 115: ...n of a new event point Ø Press Enter and it will add an event point at the place where the cursor locates in the event table and then it will go back to the event list interface However if after calculation and analysis the splice loss of the new added event point is smaller than the set loss analysis threshold or the location of the event point is wrong the instrument will automatically give up t...

Страница 116: ...ce is as shown in Figure8 29 Ø Press to change the type of the event point or press the drop down list option of the event point type on the touchscreen and select the type of the event point Ø Move the cursor to a location of a new event point Ø Press Enter and it will add a event point at the place where the cursor locates in the event table and then it will go back to the event list interface H...

Страница 117: ... 2 1 Move Cursor Ø Under the main screen press the display zone of the waveform trace on the screen and the current active cursor will jump to the point where you pointed on the screen Ø Under the main screen press the once and the current active cursor will move one data point to the left or right Ø Under the main screen press the without letting it go and after it moves 10 data points continuous...

Страница 118: ...cursor B cursor a and cursor b Note There are cursor a and cursor b only when testing splice loss 2 3 Zoom in out and Initialize Waveform Trace Ø Press and it will display the symbol of zoom as shown in Figure 8 30 Figure 8 30 Zoom in out trace Ø At this moment press then it will take the current active cursor as the center zooming in or zooming Página No 126 LCFS CONVALIDACIÓN DE ERRORES DEL PROC...

Страница 119: ...OTDR and is not at the status of trace zoom press and it will move the waveform trace upward or downward in a vertical direction 3 Measure Fiber Length and Loss Besides pressing the Analyse button or setting Auto analysis after sampling to realize analyzing the length and loss information of the event point in the test trace automatically you can also observe and analyze the length loss etc inform...

Страница 120: ...t or the take off point of the reflection peak of the fiber end Ø The length of the mark point where the active cursor locates displayed on the screen is the distance between the event point or the fiber end and OTDR output terminal Figure 8 31 Fiber length test 3 2 Measure Fiber Average Loss To test the average loss of some section of the fiber the operation steps are as follows Página No 128 LCF...

Страница 121: ... test relatively long fiber please set that the distance between the two mark points should be at least greater than 500m Ø At this moment the average loss value displayed on the operating window is the average loss of the fiber section which was to be tested Figure 8 32 Average loss test Loss A B 0 600 dB the loss between cursor A and B Average loss 0 145 dB km the average loss of the fiber Págin...

Страница 122: ...locate the cursor A at the end of the fiber linear zone which is ahead of the tested connection point Ø Locate the small cursor namely cursor a which is ahead of the cursor A at the initial end of fiber linear zone which is ahead of the tested connection point Ø Locate the cursor B at the end of the fiber linear zone which is ahead of the tested connection point Ø Locate the small cursor namely cu...

Страница 123: ...s 0 343 dB The splice loss of the connection point of cursor A 3 4 Measure Reflection Loss To test the reflection loss of a certain connection point the operation steps are as follows Ø Set the test item as splice loss test At this moment there will be two cursors in the main screen which are cursor A and cursor B Página No 131 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL ...

Страница 124: ...shown in Figure 8 34 Ø At this moment the reflection loss value displayed on the operating window is the reflection loss of the tested reflection point Figure 8 34 Reflection loss test Distance A B 0 03440 km The distance between cursor A and cursor B Reflection loss 42 472 dB The reflection loss of reflection peak of cursor A and cursor B Página No 132 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO AD...

Страница 125: ...em of file operation As shown in Figure 8 35 Figure 8 35 Submenu of file operation 4 1 Save Waveform File Under the submenu bar of the file operation press Save or press and it will pop operating window for file save as shown in Figure 8 36 Página No 133 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 126: ...s again and the active cursor will move to the selection item of storage path press again and the active cursor will move to the selection of the file format and then move to the small button and this can form a circulation Ø Press in the navigation key and it will move the active cursor to the right Select the keys on the keypad by Página No 134 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICI...

Страница 127: ...e active cursor locates at storage path or file format press and the storage path or the file format can be changed Ø When the active cursor locates at the keypad press and enter the characters selected on the small buttons to the location where the cursor locates in the input window of the file name If the selected button at this moment is then at first delete the characters afer the cursor If th...

Страница 128: ...t can be selected as EI or SOR standard Bellcore format SOR format only allows one trace datum while EI format allows multi amplitude trace data of saving multi wavelength test 3 If no file name is entered it will take the current time as default file name 4 is used for move the cursor to the left in the input window is used for move the cursor to the right in the input window 4 2 Read Waveform Fi...

Страница 129: ... displays the trace file of the compound file formats saved in the current path Read path memory USB disk and SD card can be selected File format the format of EI or SOR can be selected Display zone of the test conditions display the test conditions saved in the file which is selected by the current cursor bar Trace preview zone preview display the test trace saved in the file which is selected by...

Страница 130: ...ial numbers Ø When there are lots of files in the file list you can drag the scroll bar in the file list to quickly turn the pages forward or backward to display the files Ø Press or press the menu item of Read and it will read the file selected by the current cursor bar based on the selected trace serial number and at the same time go back to the main screen of OTDR Ø Press the menu item of or an...

Страница 131: ...e menu item Delete and it will display the operating window of deleting files on the screen as shown in Figure 8 38 The operating interface is the same as the one of reading file and the only difference between them is the different icon indication as shown in the following figure Figure 8 38 Operating window of deleting file The operation steps are as follows Página No 139 LCFS CONVALIDACIÓN DE E...

Страница 132: ...lay the files Ø Press or press the menu item of Delete and it will delete the file selected by the current cursor bar Ø Press the menu item of or and it automatically shift the active cursor to the file list window and move the cursor bar upward or downward to select different files Ø Press the menu item of Page up or Page down to display file by turning the pages forward or backward Ø Press the m...

Страница 133: ... 39 Operating window of file transfer The source disk in the file copy It is the current active window and there is before disk name at the same time there will appear a cursor bar in the file list in the window and you can mark on the file selected by the cursor bar As shown in the figure above you can select memory or USB disk SD card as the source Página No 141 LCFS CONVALIDACIÓN DE ERRORES DEL...

Страница 134: ... memory and USB disk SD card Ø Press Copy and it will copy the file The files with in the source disk will be copied to the target disk Ø Press Mark and it will add or cancel the mark in front of the file selected by the current cursor bar Ø Press Mark All and it will add or cancel the mark in front of all the files in the current active window Ø Press the menu item of USB disk SD and it will swit...

Страница 135: ...n the memory file list Mark the files needed to be copied with 2 When the source disk is USB disk or SD card there will be a cursor bar in the USB disk SD card Mark the files needed to be copied with 3 When copying it will only copy the files marked with 5 Set Fiber Information Under the main menu bar of the main screen press Setup to enter the submenu item of setting In this sub menu item press P...

Страница 136: ...etup item Ø When the active cursor locates at the fiber type and data status press to change the setup of this item when the active cursor locates at other setup items press to display the input window as shown in Figure 8 41 Página No 144 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 137: ...input the characters on the small buttons selected currently to the location where the cursor locates in the edit box or conduct the functions of the buttons You can also complete character input and conduct the functions of the Figure 8 40 Window of cable information setup Edit box buttons by pressing each buttons on the touchscreen Página No 145 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISIC...

Страница 138: ...lace the content in the former operation items Give up the current input and go back to the setup interface of the fiber information At this time the content in the former operation items remains the same Ø Press the menu item of Enter and it will confirm the current information setup and go back to the main screen of OTDR Ø Press the menu item of Return and it will give up the current modificatio...

Страница 139: ...et the reference origin as shown in Figure 8 42 Figure 8 42 Prompt Message for Setting Reference Point Ø Press Enter button in prompting message box or press to set the position of currently active cursor as reference origin and close the prompting message box meanwhile Ø Press Cancel button in prompting message box or Página No 147 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPT...

Страница 140: ...ioning test mode i e the real time test mode it only allows single wavelength test When reading test trace user may read three traces at a time and make comparison through selecting trace number but test range of the three traces must be the same Current test result calculation and trace analysis are only stated for the currently active trace Color of the currently active trace is the same with th...

Страница 141: ...utton to determine selection and exit from the trace selection window Ø Press or press Cancel button to cancel selection and exit from the trace selection window 8 View System Information Press System in the first menu bar of main screen into Página No 149 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 142: ...formation window 9 Print Test Report 1 The instrument only supports printers which support PCL language format If instrument is connected with printers not supporting PCL language format it will not be able to print 2 User may copy waveform files to PC and use simulation analysis software to print the test report Página No 150 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL T...

Страница 143: ...s Print into the print setting window See Figure 8 45 Figure 8 45 Print setting window Ø Press to move active cursor the red small button to select different operating items Ø Press to modify content of the selected operating items Ø After selecting printer type and printing content press Página No 151 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER ...

Страница 144: ...ion analysis software to print the test report l Defects in connecting cable of printer Please replace the printing cable and retry printing operation l Incorrect setting of printer Please check if the indicator light of printer is indicating error retry printing operation after removing error 10 Help Press System in the first menu of main screen into system sub menu Press Help in this sub menu ba...

Страница 145: ...ect different help topics Then press into the selected help topic and relevant content appears Ø Press or press to page backward or forward to display different Help Sub Topics as shown in Figure 8 47 Página No 153 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 146: ...ystem Upgrade Operational procedures for system upgrade are as follow Ø Create a folder named OTDR under the root directory of USB disk or SD card Ø Save the system upgrading files in the folder named OTDR abovementioned Connect USB disk or SD card to Página No 154 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 147: ...nstrument After upgrade user has to power up again Do not power off or pull USD disk or SD card out during system upgrade otherwise it will cause system upgrade failure and make instrument incapable of operating normally 12 Calibrating touchscreen Operational procedures for calibrating touchscreen are as follow Ø Press System menu in the first menu of main screen into setup sub menu Press Touch Ca...

Страница 148: ...pond Check if any button is kept pressed Make sure no button is kept pressed Length of optical fiber measured is not accurate a Refractive index of optical fiber is not set accurately b Fiber cable s coefficient of correction is not set accurately a Set the refractive index of optical fiber to the refractive index calibrated by fiber manufacturer b Set fiber cable s coefficient of correction to 1 ...

Страница 149: ... t test waveform displayed on screen except for the front end reflection peak or the front end reflection peak has long tailing Fiber end is polluted Wipe the fiber end with absolute ethyl alcohol Fiber end inside the optical output port connector of instrument is polluted Take down the optical output port connector and wipe it with the absolute ethyl alcohol Ceramic core inside optical output por...

Страница 150: ...d by one of the following Ø Failed to obtain the test trace of optical fiber If the test trace only shows front end reflection peak but fails to obtain the linearity trace which may reflecting characteristics of optical fiber please check l If the type of tested fiber end matches with the type of fiber end at OTDR optical output port l If the fiber end is polluted l If the optical output flange of...

Страница 151: ...r average time to obtain a trace of better noise ratio Ø Near end of the test trace has severe tailing Try in case severe tailing is observed on falling edge of the near end reflection peak of the test trace l Use absorbent cotton ball with proper amount of absolute ethyl alcohol to clean the tested fiber end and optical output port end of OTDR l Adopt smaller pulse width to retest the trace note ...

Страница 152: ...r test pulse width to test again l In average test mode after setting proper test range and test pulse width please select smaller test attenuation to test again such as 10dB attenuation Ø OTDR test parameters are set incorrectly If the optical fiber length etc values are measured materially different from the actual value please check If refractive index and fiber cable s coefficient of correctio...

Страница 153: ...f Rayleigh backward scattering also may ascertain the break point and fault point etc of optical fiber by observing Fresnel reflection 2 Description of Event Point Type Event type on the trace of tested optical fiber generally includes reflective event and non reflective event Reflective event appears as a peak usually is caused by the fracture plane of fixed connector or fiber end See the followi...

Страница 154: ...0002104 2014 LCFS AV6418 OTDR 150 l Down event l Up event l Non reflective fiber end Página No 162 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 155: ...16 32 64 128 256 512 Single mode 0 4 0 8 1 6 3 2 6 4 16 32 850nm multi mode Half amplitud e duration of working light pulse ns 5 10 30 80 160 320 640 1 280 2 560 10 240 20 480 single mode 5 10 30 80 160 320 640 1 280 850nm multimode Refractive index of optical fiber group Regulate within range of 1 00000 2 00000 Fiber cable s coefficient of Regulate within range of 0 80000 1 00000 Página No 163 LC...

Страница 156: ...ength of optical fiber or fiber cable n Test the distance between two random points on fiber trace n Test and display the loss and the attenuation constant of optical fiber between two random points on trace n Test and display the splice loss of the splice points on trace Spanish Chinese and English can be selected requirement Environmental Impact resistant cover Electrical discharge OTDR port pro...

Страница 157: ...e effect of real time butt joint of fiber 3 Main Technical Specification 3 1 OTDR Function 1 Dynamic range of one way backward scattering refer to Table 1 2 in 2 2 Optical Module for details 2 Operating wavelength refer to Table 1 2 in 2 2 Optical Module for details 3 Range accuracy 0 75m sample interval distance 2 5 10 5 Ignore error of refractive index 4 Loss testing accuracy 0 02dB km Single mo...

Страница 158: ... times are not less than 500 times 3 Max value obtained from testing different ranges 4 Max drop allowable of the dynamic range is 2dB when deviating from reference temperature 23 2 3 2 VFL Function Option 1 Output wavelength 650nm 10nm 2 Output power 1 5mW Typical detection range km 3 Operating mode CW 1Hz 0 5Hz 3 3 Optical Power Meter Function Option 3 Calibrated point power testing uncertainty ...

Страница 159: ...gularly Ø Please cover the dust cap after use and the dust cap must be kept clean as well Ø User must clean the flange connector of optical output port regularly In case of finding any crack on the ceramic core inside flange please replace flange in time Effect of cleaning fiber splice and optical output port Ø Optical fiber cores are very small in size Dust and particles adhering to fiber splice ...

Страница 160: ... not view any optical output port directly when instrument is operating so as to prevent ocular damage Ø Tools used for cleaning optical output interface and splices Ø You may use tools such as optical fiber cleaner and optical fiber cleaning stick to clean the optical output port and splices Ø If there is a lack of the abovementioned professional tools please prepare Absorbent cotton ball and abs...

Страница 161: ...ot overexert to avoid damaging optical output port end Gently wipe the fiber end when cleaning to avoid damaging fiber end Guarantee the cleanness of absorbent cotton ball and absolute ethyl alcohol when cleaning otherwise they will pollute the fiber end and result in inaccuracy of the test Página No 169 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETE...

Страница 162: ...Interface of stimulation analysis software 1 Menus and shortcut buttons 2 Test result display area 3 Waveform trace and cursor display area 4 Test condition display area of the current waveform trace 5 Event table display area software windows XP compatible Página No 170 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 163: ...t test report Press File Set Page to set contents of the test report See follow figure After setting the content of test report press this shortcut button or press File Print to print test report Move current active cursor left Moving pace is one data point Active cursor is red Save files for offline analysis Página No 171 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME ...

Страница 164: ...ertically Around active cursor Zoom in on the wiggle trace vertically Around active cursor Wiggle trace init display Move up the wiggle trace Move down the wiggle trace Change the currently active cursor Active cursor is red a User may press the left mouse button in waveform display area to jump active cursor to the position pressed by Página No 172 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUIS...

Страница 165: ...tion menu Display parameter setting window for editing time threshold and cable information etc User may also use the menu Cable Parameter Parameter Setting to set relevant parameters of optical fiber and fiber cable See the following figure Página No 173 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 166: ...Test result displayed when measuring reflection loss Automatically analyse wiggle trace and display analysis result in event table Add an event point behind the event point currently selected by cursor bar Will display the input window for setting type and distance of event point Edit the distance between event points currently selected by cursor bar Página No 174 LCFS CONVALIDACIÓN DE ERRORES DEL...

Страница 167: ...he file currently read Event points marked on trace after analyzing trace Function Area of Trace Analysis and Event Table Edit Implement the function of test trace automatic analyze After finishing analysis it will display the information of all the event points in event table Delete event point selected by cursor bar in event table Página No 175 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICI...

Страница 168: ...cted by cursor bar in event table User may set type and distance of this event point Edit type and distance of the event point selected by cursor bar in event table Página No 176 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 169: ...014 LCFS AV6418 OTDR 165 Appendix C AV6418 Ordering information Example AV6418 2101 HS FU V P Página No 177 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

Страница 170: ...ress No 98 Wanjie Road New Hi tech Area Zibo City Shandong Province China Tel 86 533 3589257 Fax 86 533 3589257 3587522 Email export senter com cn Web www senter cn Página No 178 LCFS CONVALIDACIÓN DE ERRORES DEL PROCESO ADQUISICIÓN DE OTDR OPTICAL TIME DOMAIN REFLECTOMETER REDES GPON FTTH SDH ...

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