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Preface
All the brands and names mentioned in this document are properties of us. This document
is subject to change without prior notice. We disclaims any liability for occasional or
secondary damages caused by errors in this document or by the use of this document or
version.
Safety Precautions
When using the product, take the following safety measures. Failure to adopt safe
operation methods or failure to observe warnings in this document may cause violation of
the safety standards for design, production, and use of the product. We disclaims any
liability for any consequence caused by violation of the preceding requirements.
Operating environment
The maximum relative humidity is 95%.
Before powering on the product
Ensure that the voltage of the power supply meets the product requirement, an
appropriate fuse is installed, and all necessary safety measures have been taken.
DO NOT use the product in an explosive environment.
DO NOT use this product in an environment with flammable gas or fume.
DO NOT remove the protective case from the product.
Operators are prohibited to remove the protective case of the product, or replace the
internal components. To remove protective case of the product, or replace the internal
components, please contact maintenance engineers of us.
Safety Symbols
This Warning symbol indicates the existence of a danger. It reminds users to pay
attention to a process, an operation method, or a similar case. Failure to
operate properly or observe related rules may cause physical injuries. Before
fully understanding and meeting the conditions indicated by this symbol, do
not proceed with the next step.
This Caution symbol indicates the existence of a danger. It reminds users to
pay attention to a process, an operation method, or a similar case. Failure
to operate properly or observe related rules may cause partial or full damages
to the product. Before fully understand and meet the conditions indicated by
this symbol, do not proceed with the next step.
This Indication symbol provides useful information for using or maintaining
the product.
Optical Time Domain Reflectometer
KomShine QX45/QX35
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Table of Contents
Related Manuals for Komshine QX45
Summary of Contents for Komshine QX45
- Page 1 Optical Time Domain Reflectometer KomShine QX45/QX35 Preface All the brands and names mentioned in this document are properties of us. This document is subject to change without prior notice. We disclaims any liability for occasional or secondary damages caused by errors in this document or by the use of this document or version.
- Page 2 Warning The OTDR is a laser device. Users should always avoid direct eye contact with the laser output. Users are strictly prohibited from using a microscope or magnifier to observe the optical source output. The laser beam may cause permanent damages to eyes when the energy of the laser beam is converged on the retina.
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Page 3: Table Of Contents
Contents 1 Overview ..............................4 1.1 About this Manual ........................4 1.2 Unpacking Inspection ....................... 4 1.3 Product Introduction ......................... 4 2 Basic Operations ..........................6 2.1 Foreword ............................6 2.2 Connectors on the OTDR ......................6 2.3 Use of the Rechargeable Battery ................... 7 2.4 Description of Function Keys .................... - Page 4 4.2.3 Obtaining the Trace—Automatic Measurement ............24 4.2.4 Obtaining the Trace—Manual Measurement ..............25 4.2.5 Obtaining the Trace—Measurement Failure Causes ........... 25 4.3 Viewing the Information Pane ....................26 4.3.1 Switching Contents in the Information Pane ..............26 4.3.2 Viewing the Event List ......................26 4.3.3 Viewing the A/B Marker Information ................
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Page 5: Overview
When necessary, you can contact us: http://www.komshine.com; KOMSHINE TECHNOLOGIES LIMITED. 1.3 Product Introduction The OTDR launched by us is a reliable instrument used to characterize an optical fiber. It features the compact size and simple operations, and adopts the ergonomic industrial design and touch LCD screen. - Page 6 g) Measure the insertion loss of a connector on an optical fiber or cable. h) Measure the refection of a reflection event on an optical fiber or cable. For a specific event (changes in optical transmission characterizes due to splicing, connector, or bending on an optical link), the OTDR can measure the following items: a) Measure the distance, loss, and reflection of an event.
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Page 7: Basic Operations
2 Basic Operations 2.1 Foreword This chapter describes the basic methods for operating the OTDR, including the keys and frequently-used connectors. The touch screen operations have the same functions as keypad operations. This manual provides only a brief description about the touch screen operations. -
Page 8: Use Of The Rechargeable Battery
2.3 Use of the Rechargeable Battery The OTDR uses an embedded Li-ion battery. Precautions when using the OTDR a) If the battery power is low when the OTDR is working, a low battery icon is displayed on the LCD screen and the OTDR is automatically powered off. b) The battery power may be low because the OTDR has not been used for a long time. - Page 9 Major functions of these keys are as following: Cancel the current operation. Exit from parameter setup. Switch contents displayed in the information window. Press [ESC] together with [Shift/ ] to go to the next event point. [Shift/ ] This key is used together with other keys to implement related functions.
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Page 10: Basic Knowledge About Otdr
3 Basic Knowledge about OTDR 3.1 Working Principles of OTDR Optical Time Domain Reflectometer is the full name of OTDR. OTDR is accurate optoelectronic integrated instrument made according to back scattering that generated from Rayleigh scattering and Fresnel reflection when lights are transmitted in the optical fiber. It is widely used in the maintenance, construction and monitoring of cable line. -
Page 11: Non-Reflection Event
Fig.3-1 Reflection Event 3.2.3 Non-Reflection Event Non-reflection event brings loss on the whole transmission link of optical fiber, but no light reflection. On the curve, non-reflection event is shown as drop of optical power, as shown in Fig.3-2. Fig.3-2 Non-reflection Event 3.2.4 Test Event OTDR sends optical pulse into the optical fiber that waited for inspection, then, begins to accept the returned optical signal immediately, and calculate the distance of... -
Page 12: Trace Pane Of The Otdr
bundling threshold, OTDR detects the bundling of optical fiber; Events list: Category of events, loss, reflection, and distance are listed through calculation. 3.4 Home Page The OTDR provides six functional modules: OTDR, VFL, Settings, File management, Open, Help, and so on. Icon become Red when be chosed, and blue means the non current state. Figure 3-3 Home Page. -
Page 13: Information Pane Of The Otdr
Figure 3-5 Trace and coordinates 3.5.2 Information Pane of the OTDR The information pane shows the measured parameter, event lists, A/B marker, and analyzed parameters. 3.5.2.1 Trace Measurement Parameters The most important measurement parameters and analysis parameters of the trace are always displayed in the information pane, as shown in Figure 3-6. -
Page 14: Information About The A/B Marker
Figure 3-7 Event list Serial number: "2/2" indicates that there are a total of two events on the trace, and the information about the second event is currently displayed. Position: It indicates the distance from the start point of the optical fiber to the event. Reflection: It indicates the reflection strength of the reflection event. -
Page 15: Information About The Optical Fiber Link
3.5.2.4 Information about the Optical fiber Link Information about the optical fiber link includes the link attenuation, link length, and link loss of the optical link under test, as shown in Figure 3-9. Figure 3-9 Information about the optical fiber link 3.5.3 Tool Bar of the OTDR 3.5.3.1 Icons on the Tool Bar Tool Icon... -
Page 16: Parameter Setup Operations
Tool Icon Description Switch between markers A and B. Move the marker to the right. Page up the event list. Page down the event list. 3.5.3.2 Parameter Setup Operations Accurate parameters settings are mandatory for accurate measurement of an optical fiber. - Page 17 Parameter Definition Width laser pulse that Pulse width transmitted from the OTDR to the optical fiber Measurement Select appropriate test time. duration Laser wavelength Select a test laser wavelength. Monitoring mode Select a measurement mode. Length unit Select an appropriate length unit. It is the reflection rate of an optical Reflection rate fiber, which affects the transmission...
- Page 18 On the parameter setup page, press [▲] or [▼] to select Distance range. Press [Enter] to enter or [ESC] to exit from the distance range setup page. Figure 3-11 Setting the distance range Press [▲] or [▼] to select an appropriate distance range, and press [Enter] to make the setting effective.
- Page 19 Figure 3-12 Setting the pulse width Press [▲] or [▼] to select a pulse width as required, and press [Enter] to make the setting effective. The default value of Pulse width is Auto. If Distance range is set to Auto, Pulse width is also set to Auto. You do not need to set the pulse width by yourself.
- Page 20 Setting the Laser Wavelength On the parameter setup page, press [▲] or [▼] to select Laser wavelength. Press [Enter] to enter or [ESC] to exit from the laser wavelength setup page, as shown in Figure 3-143. Figure 3-14 Setting the laser wavelength Setting the Measurement Mode Two measurement modes are available: real-time and average.
- Page 21 The reflection rate of an optical fiber affects the transmission speed of the light on the optical fiber. Therefore, setting of the reflection rate directly affects the accuracy of measured distance. Generally, the reflection rate of an optical fiber is provided by the manufacturer of the optical fiber.
- Page 22 Press [ ] or [ ] to select the digit to be modified, and press [▲] or [▼] to modify the value of the selected digit. After modification is completed, press [Enter] to make the setting effective and press [ESC] to exit from the setup page. ...
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Page 23: Battery Charging Status
Help You can obtain the online help from the Help menu. On the parameter setup page, press [▲] or [▼] to select Help. Press [Enter] to enter or [ESC] to exit from the help page, and press [ ] or [ ] to page up or down, as shown in Figure 3-20. Figure 3-20 Help information 3.6 Battery Charging Status When the OTDR is powered off and is charged by using the AC/DC adapter, the indicator... -
Page 24: Obtaining The Trace And Existing Trace Operations
4 Obtaining the Trace and Existing Trace Operations 4.1 Description of the Home Page After the OTDR is powered on, the logo page and the home page is displayed, as shown in Figure 4-1/2. Figure 4-1 logo page Figure 4-2 Home page Six icons are displayed on the home page, including OTDR Mode, Visible Light Source, Parameter Setup, File Management, Open File, and Help. -
Page 25: Obtaining The Trace-Connecting An Optical Fiber
4.2.1 Obtaining the Trace—Connecting an Optical Fiber Connect the optical fiber to the optical output port on the OTDR without using any tool. Clear the connector. For details about how to clear optical connectors, see Appendix A. Clear the optical connector on the OTDR and check whether the optical interface is an FC/UPC connector. -
Page 26: Obtaining The Trace-Manual Measurement
Figure 4-3(b) Trace analysis page of the OTDR Figure 4-4 OTDR Trace During the measurement process, the intermediate result of the measurement is displayed on the screen. The trace is refreshed regularly to display the entire measurement process to users. After the measurement duration expires, the trace is the final trace, as shown in Figure 4-4. -
Page 27: Viewing The Information Pane
Select the broad pulse or increase the average time (measurement duration), and try again. The user settings are incorrect. Check the user settings (such as the reflection rate), and try again. 4.3 Viewing the Information Pane The information pane displays the measurement parameters, analysis parameters, event information, and A/B marker information. -
Page 28: Zooming Out A Trace Horizontally
4.5 Zooming out a Trace Horizontally This function is used to zoom out a trace horizontally. On the page as shown in Figure 4-4, tap on the touch screen, or press [Shift/ ] and [ ] on the keypad together to zoom out the trace horizontally. 4.6 Zooming in a Trace Vertically This function allows you to view the event point on a trace closely. -
Page 29: Viewing An Existing Trace
the same operation to enter the next letter until the complete file name is entered. Alternatively, You can directly tap a letter or number on the touch screen to enter a file name. Press [▲], [▼], [ ], or [ ] to select the Save button, and press [Enter] to save a file. - Page 30 Copy the target file to the USB flash drive, and then copy the data on the USB flash drive to the PC. If the SD card is used for uploading, directly remove the SD card from the OTDR, and use a card reader to copy the trace data to the PC.
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Page 31: Appendix A Maintenance And Calibration
Appendix A Maintenance and Calibration Battery Maintenance and Replacement The OTDR uses an embedded Li-ion battery. Pay attention to the following points when maintaining the battery: It is recommended that the OTDR (with the embedded battery) be stored at a dry place at room temperature (15ºC to 30ºC) to achieve the optimum performance. -
Page 32: Calibration Requirements
g) Only qualified or OUR authorized maintenance engineers can perform maintenance operations on the OTDR. Tools for Cleaning Connectors a) Fiber cleaner, used to clean optical connectors b) Fiber cleaning rod, used to clean optical connectors c) Fiber cleaning cloth, used to clean optical connectors d) Isopropanol e) Cotton ball f) Soft tissue... -
Page 33: Appendix B Technical Specifications
60 km, the pulse width is 2560 ns, and the average time is 3 min. The dynamic range of QX35 and QX45 is measured when the measuring range is 120 km, the pulse width is 2560 ns, and the average time is 3 min. -
Page 34: Appendix C Warranty Information
Contact Information Please visit the website of us to obtain the updated information about the product, user manual, and related applications. If you need any technical or sales supports, contact the local customer service center of us. KOMSHINE TECHNOLOGIES LIMITED. http://www.komshine.com;...
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