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GAOTek Mini Pro Fiber Optic Instruction Manual

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Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers.
GAO ships overnight within the U.S. & Canada & provides top-notch support thanks to its 4 decades of experience.
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Product SKU
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GAOTek Mini Pro Fiber Optic
GAOTek-TLT-143
https://gaotek.com/product/gaotek-mini-
pro-fiber-optic/

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  • Page 1 Product Name GAOTek Mini Pro Fiber Optic Product SKU GAOTek-TLT-143 https://gaotek.com/product/gaotek-mini- Product URL pro-fiber-optic/ Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S. & Canada & provides top-notch support thanks to its 4 decades of experience.

  • Page 2: Table Of Contents

    Contents GAOTek Mini Pro Fiber Optic ..................... 4 Introduction ............................ 4 Names and Functions of Parts ......................5 Main Menu Interface ........................8 II ............................. 8 OTDR Module Interface ......................... 9 VFL Module Interface ........................11 OPM Module Interface ......................... 12 Preparation ............................
  • Page 3 10..............................59 Optical Power Meter Module（Optional） .................. 59 11.0 ............................... 61 Software Update ........................... 61 12.0 Background Information on Measurements ................. 62 12.1 Viewing the Optical Pulse Measurement Waveform ............62 13.0 ............................... 63 Maintenance ..........................63 Cleaning Tools ........................64 Cleaning of Optical Port ......................

  • Page 4: Gaotek Mini Pro Fiber Optic

    GAOTek Mini Pro Fiber Optic Introduction This user’s manual contains useful information about the instrument’s functions and operating procedures and the handling precautions of MINI OTDR.To ensure correct use, please read this manual thoroughly before beginning operation.After reading the manual, keep it in a convenient location for quick reference whenever a question arises during operation.

  • Page 5: Names And Functions Of Parts

    Names and Functions of Parts Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S. & Canada & provides top-notch support thanks to its 4 decades of experience.
  • Page 6 Name Description Port 1 Including OTDR Test port（FC/UPC）、Visual Fault locator port（optional）×1、Power Meter port（optional） ×1 , touch pen×1 and USB A type×2 Port 2 Including micro-USB×1 and charging port Indicator Indicate test and power state Move cursor, menu or files Direction Buttons Test button Averaging Test（TEST）...

  • Page 7: Power Switch

    Button area F1～F4： Select relative tag menu OK ： Confirm setting or enter menu ESC： Cancel setting or enter menu MENU： Back to main menu SETUP： Set test parameters FILE： File manager VFL： visual fault locator menu ： Printscreen ：Power switch Based in New York City &...

  • Page 8: Main Menu Interface

    Main Menu Interface Function Description Side menu Enter relevant interface Function Modules Area Enter relevant module Basic State Information Area Display information of date ,time and power Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S.

  • Page 9: Otdr Module Interface

    OTDR Module Interface Function Description For user's reference to the integrated curve Thumbnail of current curve Display events and curves Curve display operating area Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S.
  • Page 10 Event list Display event information area including:"Type","distance(Km)","Loss(dB)","T.Los s(dB)","Slope(dB/km)" and "Reflection(dB)" Display condition information test including"PW"(Pulse width), Test condition information "WL"(wavelength),resolution of X axis and Y area axis(dB/div),distance,averaging and total loss from cursor A to cursor B. Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S.

  • Page 11: Vfl Module Interface

    VFL Module Interface I II Num. Function VFL mode indicator Launching state indicator Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S. & Canada & provides top-notch support thanks to its 4 decades of experience.

  • Page 12: Opm Module Interface

    OPM Module Interface Num. Function Power value display Wavelength channel Reference value Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S. & Canada & provides top-notch support thanks to its 4 decades of experience.

  • Page 13: Preparation

    P a g e | Preparation Turnning on Press power button(>2s) to turn on OTDR, power state indicator turns green .when power is low some warning information will display on the screen. Power state indicator Launching state indicator Green light：Working state or fully charged Green light：Proceed realtime test Red light：Charging state Red light：Proceed averaging test...

  • Page 14: Connecting The Fiber

    P a g e | Caution In case of low power, special icon will appear, and after that for a while MINI OTDR will turn off automatically. If it has not been used for an extended period of time,MINI OTDR will turn of immediately after turned on to protect the internal battery ,please connect the AC adapter adapter.

  • Page 15: Introduction Of Otdr

    P a g e | Caution Insect connector carefully into optical port ， unproper operation may cause the damage of optical port. Warning Before connection make sure that there is no optical signal exist inside the fiber,any signal which is larger than -30dBm will disturb the sampling of OTDR,even cause permanent damage of sensor.
  • Page 16 P a g e | ➢ End: the first point which the loss of it is over the threshold would be scanned as the end of a trace. ➢ Events list: event type, loss, reflection and distance. Normal Curve A normal trace shows as above, the A mark is a start-peak and the B mark is a end-reflection-peak.
  • Page 17 P a g e | see a reflection peak replacing the broken point on the OTDR trace, this shows the maintenance is done. Curve with Broken Point If the tested trace is just like the figure shows above, this might be caused by several reasons like: a bad connection between the connector and the lunching port, the optical pulse cannot be launched into the optical fiber or a short distance broken point of the tested fiber from the initial connection and the preset testing distance and pulse width is...
  • Page 18 P a g e | 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.
  • Page 19 P a g e | 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 or caused by a under-range preset testing range of distance or pulse width corresponding to the actual fiber length.
  • Page 20 P a g e | scattering. The power of Fresnel reflection is tens of thousands times to the back-scattering's. The reflection level depends on the changing grade of refraction ratio. Formula of the distance: distance = (c/n)×(t/2) Here: c is the light speed traveled in vacuum(2.998×10 m/s) t is the delay between launching pulse and receiving pulse n is the refraction ratio of the testing fiber(specified by manufacturer)
  • Page 21 P a g e | Types of event The events on trace are all the points that the value of power loss fluctuates abnormally. It usually contains various types of connection and bending, crack, broken and etc. The event points marked on trace with special marks are the abnormal points in a fiber that cause the excursion of a normal trace.

  • Page 22: Setting Measurement Conditions

    P a g e | Setting Measurement Conditions Press【SETUP】button on the panel to enter test setting interface The meaning of items indicated in the following table: Test Wavelength of OTDR, including 1310nm,1550nm and Test Wave 1310nm&1550nm 3 kinds of mode Auto Mode: MINI OTDR will set best parameters for current test Test Mode...

  • Page 23: Setting To Auto Mode

    P a g e | Sampling resolution of test high resolution has more sample point and high precision,but take more memory Resolution space Unit Unit of test result,including km/kfeet/miles Setting to Auto Mode In Auto mode,you could just proceed test by setting proper wavelength. Procedure: Press 【...
  • Page 24 P a g e | Procedure: 1.Press 【SETUP】 button to enter "Test Setting" SETUP interface Setting to Manual Mode 2.Set "Manual" mode 3.Set test wave 4.Set range and pulse width Caution When "Pulse width" set to "Auto", test will choose proper pulse width automatically When "Test Range"set...

  • Page 25: Averaging Test Mode

    P a g e | Once you set the “Test range”，“Pulse width”item will adjust automatically you could also adjust manually ） ： Proper relationship between Range and pulse width(PW)（For user's reference o n l 100m 500m 10km 20km 40km 80km 120km 160km 240km...

  • Page 26: Realtime Test Mode

    P a g e | Press【TEST】button on the control panel, test state indicator turns red,enter averaging test interface. TEST Averaging test interface Realtime Test Mode Realtime test mode could check network , adjust test range and pulse width in real-time. Press 【...

  • Page 27: Setting Wavelength

    P a g e | REALTIME Realtime test interface 4.2.1 Setting Wavelength Procedure： 1. Select wavelength (WL) tag to set wavelength(1310nm or 1550nm). 2. Confirm by【OK】button. Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S.
  • Page 28 P a g e | 4.4.2 Setting Test Range and Pulse Width Procedure： Select tag "Params"to set Test range(range) and Pulse width(PW). Confirm by 【OK】. Event List After test,event list will appear immediately at the bottom of the window,user could get detail information about this test from the list.
  • Page 29 P a g e | Event ence Event List Description of items showed in chart below: Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S. & Canada & provides top-notch support thanks to its 4 decades of experience.
  • Page 30 P a g e | Item Description Type Type of event（Attenuation events，Reflection events and End event） Distance Distance from start point to event Section Distance from this event to last event. Loss Loss of this event(dB) T. Loss Total loss from start event to this event(dB) Slope dB/km Ratio of event loss value（dB）(from this event to last event)to...
  • Page 31 P a g e | 4.4 Distance Measurement Measure the distance from one point to another. Procedure： 1. Press【F1】button to active cursor function. 2. control【◀ 】﹑【▶ 】to move cursor A or B. 【◀】 ：move left 【▶】 ：move right 3. Get information by following the guide below： Reference point ween...
  • Page 32 P a g e | 4.5 OTDR Optimizing Tool Guide Fiber Connecting Flange Reflection Event Guide fiber Use an guide fiber to figure out the character of connector. By adding this fiber we could move the fist connector out of the blind area.In the same way we could use this way to figure out the character of last connector.
  • Page 33 P a g e | Testing range means maximum display range.This parameter will indicate how long will OTDR display on its screen.this range must longer than testing fiber,Usually we choose range which is 20% longer than 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...
  • Page 34 P a g e | It is obviously at the top of testing fiber influence on Pulse width , in below chart,we cant detect the first connecting point locate in the 540m by large pulse width.(see Figure 3) Figure 3 Dynamic range decided by Pulse width,larger pulse width will spend more optical power,but it reach further.(see Figure 4) 500ns...
  • Page 35 P a g e | 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 Figure 6 Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S.
  • Page 36 P a g e | Expanding Waveform Moving Display Area Switching between Event List and Display Window In "current test" interface,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.
  • Page 37 P a g e | Switch to "Event", move selection tag to choose event. Every time move selection bar to an event in event list,cursor will move synchronously to relevant event on curve. User could use "Zoom","Move","Switch"function to adjust curve to a better position, for more information please read next sections.
  • Page 38 P a g e | 【 F1 】 【 【 F 2 】 【 【 F 3 】 【 F 4 】 Slope Ratio loss(from last event this event)to distance(from last event to this event) Reflect Return loss of this event Cursor Operation 5.2.1 Activating Cursor...
  • Page 39 P a g e | CursorAB Cursor A Sequence of cursor switching Set proper cursor,press 【◀ 】﹑【▶ 】button to move current cursor, long press to move cursor faster. 5.3 Curve Operation Horizontal Zoom Procedure: In "Current Test"interface, 1. Press【F1】button to activate "Zoom"function. 2.
  • Page 40 P a g e | After operation 5.3.2 Vertical Zoom Procedure: In "Current Test"interface, Press【F2】button，activate"Zoom"function. Control【▶ 】﹑【◀ 】button to zoom in or zoom out curve. 【▶ 】 ：zoom out 【◀ 】 ：zoom in 2. Press【OK】button to reset curve. Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S.
  • Page 41 P a g e | riginal at on 5.3.3 Horizontal Shift Procedure: In "Current Test"interface, 1.press【F2】button，activate"shift" function. 2.Control【▶ 】﹑【◀ 】button to move right or left. 【▶ 】 ：move right 【◀ 】 ：move left 3. Press【OK】button to reset curve. Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S.
  • Page 42 P a g e | original After operation 5.3.4 Vertical Shift Procedure： In "Current Test"interface, 1. Press【F2】to activate“shift"function. 2. Control【▲】﹑【▼】button to move up or down. 【▲】:move up﹑【▼】:move down Press【OK】button to reset curve. Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S.
  • Page 43 P a g e | Original After operation 5.4 Elaborating Event This section we will introduce how to elaborate an event on curve,example as event 2 in below curve. Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S.
  • Page 44 P a g e | Refer ce Event 1 Event 2 ： Procedure ： In "Current Test" 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.
  • Page 45 P a g e | Procedure： In "Current Test" interface, Press【F2】button ,active "switch"function. Control【▲】﹑【▼】button to switch between curves. 【▲】 ：switch to above curve 【▼】 ：switch to below curve Press【OK】button to reset all curves. A Curve B Curve After on operation, curve A switch to curve A Based in New York City &...
  • Page 46 P a g e | 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). 5.5.1 Removing Curve(s) User could remove one or several curves. Press 【F4】...
  • Page 47 P a g e | Press 【F4】button to select"More..."tag Press【F2】"Remove Event"tag to remove event. 5.7 Adding an Event Procedures: In current Test interface, Press【F1】 to activate cursor function move to target event. Press 【F4】button to select"More..."tag 3. Press 【F3】 to add event. Based in New York City &...

  • Page 48: File Operation

    P a g e | 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. 6.0 File Operation In "Current Test" interface Save the current curve ,press 【FILE】button on the board ,open "File Operation"interface,showed as follow: FILE Based in New York City &...
  • Page 49 P a g e | "File Operation" interface File Setting 6.1 Saving Curve Procedure: In"Device Directory"window, 1. press 【▲】﹑【▼】 to choose file and subfile then press【OK】. 2. Press 【F1】button to enter "File Operation"interface ,user can change way of saving,decide way of naming and check memory state. 3.
  • Page 50 P a g e | Procedure: In"Device Directory"window, Press 【▲】﹑【▼】to choose relative file and subfile press 【OK】. Press【▶ 】 switch to "File list" window. Control【▲】﹑【▼】 button to to select relevant file curve file(s),press 【OK】 button to select the relevant file(s). Press【F1】, select "Load"...
  • Page 51 P a g e | "File Setting " interface Tags ： Item Description Menu Back to main menu Filename Modify prefix of file name Save Path Modify the save path of files File Operation Back to "File Operation" interface Quit Quit current interface Items：...
  • Page 52 P a g e | SEQNO Sequence number of next test,and auto increment after each test Create folder by Set create folder by today's date and save files separately into them date Split char Set the type of separator Auto save Set Auto save Based in New York City &...
  • Page 53 P a g e | 6.6 Print Screen MINI OTDR could capture current screen and save as ".BMP"format file. Procedure: Press button to capture. Save Path User could check captured screen in "File Operation"by pushing【FILE】button. Caution User could change save path under "File Setting". Based in New York City &...

  • Page 54: Entering Characters

    P a g e | 7.0 Entering Characters You can enter file names and comments from the character input screen shown below when saving the measured waveforms. 7.1 Renaming Next guide will teach you how to change the name of file: Procedure ：...

  • Page 55: Flm Test

    P a g e | Press【F1】"File Operation",select "Create Directory" Input name and confirm by "OK" on visual keyboard 8.0 FLM Test FLM Test (Fiber Link Measurement), also known as "Optical Eye", uses multiple pulse width acquisitions and advanced algorithms to quickly characterize the fiber under test and display the optical events applying intuitive symbols.
  • Page 56 P a g e | Press【F2】"Setting" to enter the setup interface. Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S. & Canada & provides top-notch support thanks to its 4 decades of experience.
  • Page 57 P a g e | Press【▲】or【▼】to set "First splitter", "Second splitter" or "Test wavelength" option according to the actual condition of your fiber under test. After setup is finished, press【ESC】back to test interface and press【F1】 to start the FLM test. Based in New York City &...

  • Page 58: Vfl(Visual Fault Locator) Module

    P a g e | Press【◀ 】or【▶ 】to check detailed information of each event. 9.0 VFL(Visual Fault Locator) Module MINI OTDR equipped with VFL module(650nm) to simply detect broken point of optical network Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S.

  • Page 59: Optical Power Meter Moduleļ¼ˆOptional

    P a g e | VFL interface VFL module has two modes: Launching continuous wave（650nm） Launching 2Hz modulated wave （650nm） Press "Quit" to quit VFL interface Warning Don't direct the optical port to human eyes ! 10. Optical Power Meter Module（Optional） OPM Module is used to quick get the power of terminal port.at site Based in New York City &...
  • Page 60 P a g e | OPM interface Setting Set offset value and display precision Press “REF” to set current power value as reference value λ Switch wavelength Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S.

  • Page 61: Software Update

    P a g e | Common/ λ Recog switch between common mode and wavelength detection mode ※Wavelength will not change automatically in common mode 11.0 Software Update MINI OTDR could proceed update by one U disk(with patch storage in root directory). Procedure: Download patch from PC and storage into U disk(※must storage in root directory).

  • Page 62: Background Information On Measurements

    P a g e | Upgrades interface2 12.0 Background Information on Measurements 12.1 Viewing the Optical Pulse Measurement Waveform 12.2 Terminology Near-end reflection A reflection occurs in the gap between the OTDR and the connector for the optical fiber cable. Losses and reflections of the connection points cannot be detected in the section in which this reflection is detected.

  • Page 63: Maintenance

    P a g e | Backs cattering light When light propagates through the optical fiber cable, a phenomenon called Rayleigh Scattering occurs due to the nonuniformity of the density or constituents of materials smaller than the wavelength unit. The scattered light that is transmitted opposite to the direction of propagation is called backscattering light.

  • Page 64: Cleaning Tools

    P a g e | ➢ Any operations contrary to the instructions may result in dangerous laser injuries. ➢ Disable laser launching before cleaning. ➢ 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, ➢...

  • Page 65: Calibration

    P a g e | Caution Be careful, don't use tools like plier, it may cause permanent damage to optical port Calibration We suggest to calibrate MINI OTDR twice a year,for more information please contact Diagnosis Center 14.1 FAQ Fault Reason Solution Holding time on power...
  • Page 66 P a g e | Temperature is too high. Try to decrease temperature. Battery does not work Connection is not 2.Reconnect battery. proper. properly 3.Replace a new one. Battery is nearly broken. Battery has broken Replace a new one Power state indicator turns yellow Clean and reconnect.

  • Page 67: Help Information

    P a g e | 14.2 Help Information MINI OTDR has an build-in manual with essential information Procedure： Turn on OTDR Press【F4】enter system setting，press【F4】to read manual Control 【▲】 【 ▼】button to flip over Press 【Esc】 to quit Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S.

  • Page 68: Specification

    P a g e | 15.0 Specification 15.1 Physical Parameter 5 inch TFT-LCD（touch screen ） Display 7.4V/3300mAh lithium battery（with air traffic certification）, Battery Continuously test: 6 hours( back light off)③, Charging time: 3.5hours Data Storage 20000 groups of curve Interface 3×USB port（USB A Type×2, Micro-USB×1）...
  • Page 69 P a g e | Loss resolution 0.001dB Distance n 0.01m resoluti ±(1m+measuring distance×3×10 +sampling resolution )(excluding IOR Distance uncertainty) accurac Refractivity g 1.2000~1.5999, 0.0001 step Settin VFL Module(Optional) Wavelength 650nm Power 10mw,CLASSIII B Range 12km Connector FC/UPC Launching Mode CW/2Hz OPM Module(Optional) Wavelength Range...
  • Page 70 P a g e | Event dead zone is measured with pulse width of 3ns;attenuation dead zone is measured with pulse width of 5ns. Typical ,back light off ,sweeping halted at 25℃,6 hours typical continuous testing. 15.3 Dimension Unit:mm where noted ， tolerance default Except as:±3% (if size<10mm，tolerance:±0.3mm）...

  • Page 71: 16Warranty

    P a g e | 16Warranty Terms of Warranty All Company products are warranted against defective material and workmanship for a period of time from the date of shipment to the original customer. Any product found to be defective within the warranty period would be repaired or replaced by Company free of charge.In no case will Company liabilities exceed the original purchase price of the product.
  • Page 72 P a g e | Contact us: sales@gaotek.com Based in New York City & Toronto, GAO Tek Inc. is ranked as one of the top 10 global B2B technology suppliers. GAO ships overnight within the U.S. & Canada & provides top-notch support thanks to its 4 decades of experience.

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