SKYSHL SS322T Series User Manual
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SKYSHL SS322T Series User Manual

Optical time domain reflectometer
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SS322T Series Optical Time Domain Reflectometer
User's Manual
Shenzhen SKYSHL Technology Co.,LTD.
www.skyshl.net
V2019.03

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  • Page 1 SS322T Series Optical Time Domain Reflectometer User’s Manual Shenzhen SKYSHL Technology Co.,LTD. www.skyshl.net V2019.03...
  • Page 2 SS322T Series OTDR User’s Manual Foreword Thank you for purchasing SKYSHL SS322T Series OTDR (Optical Time Domain Reflectometer).This manual mainly contains information of the general operation and maintenance of the OTDR, as well as the common troubleshooting guides. To ensure correcting use, please read carefully before beginning operation and follow the instructions in this manual.

  • Page 3: Table Of Contents

    Chapter VIII Working principles.....................78 Chapter IX Technical parameters....................80 Appendix A Optical output port cleaning..................88 Appendix B Technical specification for each OTDR standard module........91 Appendix C Remote control command set..................96 Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 4 Failure to take these safety measures or to comply with the warnings and cautions elsewhere in this manual will violate the safety standards for the design, manufacture and use of the instrument. Shenzhen Skyshl Technology Co.,LTD. will not be liable for any consequences caused by users' violation of these requirements.
  • Page 5 Do not disassemble any parts of the instrument except those parts which are allowed to be replaced by the user as stated in this manual. Replacement parts and internal adjustment can only be carried out by Shenzhen Skyshl Technology Co.,LTD. or by its authorized maintenance personnel.
  • Page 6 : Alert the user to a process, operation, or similar situation. Failure to operate properly or follow the rules may result in partial or total damage to the instrument. Instruction! : Information useful for instrument use and maintenance. Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...

  • Page 7: Chapter I Overview

    SS322T Series OTDR User’s Manual-Chapter I Overview Chapter I Overview 1 Overview This manual is applicable to optical time domain reflectometer. The optical time domain reflectometer is a multifunctional test instrument designed for FTTx network. It is mainly used to measure the length, transmission loss, joint loss and other physical properties of optical fiber, and to locate the event point and fault point in the optical fiber line.
  • Page 8 SS322T Series OTDR User’s Manual-Chapter I Overview 50dB large dynamic range, 256k data sampling point, capable for long-distance  multi-branch communication network test. Bidirectional analysis and macro - bending analysis function.  PON online testing function.  Single and multi - module integrated test function.
  • Page 9 SS322T Series OTDR User’s Manual-Chapter I Overview Built-in optional visual red light fault location (VFL), optical power meter, light source  and end face detection function modules. OTDR optical output connector type can be changed at will, ensuring easy end face ...
  • Page 10 SS322T Series OTDR User’s Manual-Chapter I Overview Input voltage: 100-240V，50-60Hz 2.0A Power cord assembly Output voltage 15V, output current 4A User Manual Product certification Special portable soft pack Table 1-2 Options of optical time domain reflectometer Option Name Model USB flash disk...
  • Page 11 SS322T Series OTDR User’s Manual-Chapter I Overview LC adapter SSA4-1038(1.0) SC adapter SS155-003(1.0) ST adapter SS155-004(1.0) Wavelength: 650nm±20nm, power: ≥2mW Wavelength: 1200-1650nm, range: -70-+3dB Wavelength is the same as OTDR module; power: ≥-5dB Packaging box Special engineering plastic box Shenzhen Skyshl Technology Co.,LTD.
  • Page 12 SS322T Series OTDR User’s Manual-Chapter I Overview Table 1-3 Module Of SS322T OTDR Dynamic Range Module Operating wavelength (dB) SS322T-2A 1310/1550nm 37 / 35 SS322T-2B 1310/1550nm 42 / 40 SS322T-2C 1310/1550nm 45 / 42 1310/1550nm 50 / 50 SS322T-2D SS322T-2MM...
  • Page 13 SS322T Series OTDR User’s Manual-Chapter I Overview 1310/1550/1625nm(built-in filter) 45/42/42 SS322T-3C SS322T-4A 1310/1490/1550/1625nm(built-in filter) 45/42/42/42 1310/1550/850/1300nm 40/38/26/34 SS322T-4M Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 14 SS322T Series OTDR User’s Manual-Chapter I Overview 3 Warnings for instrument operation 3.1 External DC power External DC power supply must meet the following requirements: 14V ~ 20V and greater than 1.5A; polarity: center is positive. Using too high a voltage will damage the instrument.
  • Page 15 Please ensure that all optical fibers tested by this instrument are in a state of no signal. 4 Precautions for instrument operation 4.1 AC/DC adapter Please use the adapter provided by Shenzhen Skyshl Technology Co.,LTD. Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 16 SS322T Series OTDR User’s Manual-Chapter I Overview to power the instrument. Using other adapters may cause damage to the instrument. 4.2 Internal battery (1) In order to give full play to the performance of the battery, at the beginning of using the instrument, the internal battery should be used for power supply until the battery is exhausted, and then the battery should be charged for 2-3 times.
  • Page 17 SS322T Series OTDR User’s Manual-Chapter I Overview (1) Do not use sharp objects to click on the LCD screen, do not impact the LCD screen with force. Otherwise, the LCD screen will be damaged. (2) Do not drip or splash organic solvents or pollutants on the LCD screen, such as acetone, oil, antifreeze, ointment, or it will cause the LCD screen to work abnormally.
  • Page 18 SS322T Series OTDR User’s Manual-Chapter I Overview (3) When using this instrument for measurement, it is necessary to keep the inside of the optical output connector of the instrument and the end face of the optical output connector of the instrument clean, so as to avoid contamination of the optical output connector by ointment and other pollutants.
  • Page 19 SS322T Series OTDR User’s Manual-Chapter I Overview 5 Maintenance (1) Please use original packing materials when this instrument is transported to avoid severe shock and vibration. (2) After removing the packing case of the instrument, please carefully check and ensure that the model of the instrument is optical time domain reflectometer. After confirming there is no obvious damage on the surface of the instrument with complete accessories, the instrument can be used.
  • Page 20 SS322T Series OTDR User’s Manual-Chapter I Overview 6 Calibration requirement The validity of technical parameters is related to the operating environment of the instrument. The period of calibration can be extended or shortened according to the operation frequency of the instrument, the environment in which the instrument operates and the maintenance of the instrument.
  • Page 21 (4) As the instrument is used for a period of time, the battery performance will decline, which is normal battery loss. This situation is not covered by the warranty. (5) The maintenance of the instrument shall be carried out by Shenzhen Skyshl Technology Co.,LTD. or its designated and authorized maintenance unit. Any other unit or individual disassembling and repairing the instrument is illegal, and the instrument will lose its warranty qualification.
  • Page 22 SS322T Series OTDR User’s Manual-Chapter I Overview 8 Instrument panel description 8.1 Instrument front panel The front panel of the optical time domain reflectometer is shown in Figure 1-1: Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 23 SS322T Series OTDR User’s Manual-Chapter I Overview Figure 1-1 Front panel of optical time domain reflectometer Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 24 SS322T Series OTDR User’s Manual-Chapter I Overview 8.2 Instrument side plate The side plate of the optical time domain reflectometer is shown in Figure 1-2: Figure 1-2 Side plate of optical time domain reflectometer Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 25 Part I Instructions Part I Instructions Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...

  • Page 26: Chapter Ii Main Operation Interface

    SS322T Series OTDR User’s Manual-Chapter II Main operation interface Chapter II Main operation interface The optical time domain reflectometer can be equipped with optional functions such as optical power meter, light source, visual fault location (VFL) and end face detection.
  • Page 27 SS322T Series OTDR User’s Manual-Chapter II Main operation interface Click any of the six buttons of [OTDR], [Optical power meter], [Optical source], [VFL], [End face detection] and [Help] in the interface to enter the corresponding module operation interface and realize the corresponding functions.
  • Page 28 SS322T Series OTDR User’s Manual-Chapter II Main operation interface Figure 2-2 Schematic diagram of general setting interface Network Settings include network settings, WIFI scanning and connection, Internet of Things connection and bluetooth connection, as shown in Figure 2-3. Shenzhen Skyshl Technology Co.,LTD.
  • Page 29 SS322T Series OTDR User’s Manual-Chapter II Main operation interface Figure 2-3 Schematic diagram of network setup interface Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...

  • Page 30: Chapter Iii Optical Power Meter Module

    SS322T Series OTDR User’s Manual-Chapter III Optical power meter module Chapter III Optical power meter module If the instrument you purchased is equipped with the optical power meter function, click the [Optical power meter] button in Figure 2-1 to enter the operation interface of the optical power meter, as shown in Figure 3-1.

  • Page 31: Chapter Iv Optical Source Module

    SS322T Series OTDR User’s Manual-Chapter IV Optical source module Chapter IV Optical source module If the instrument you purchased is equipped with optical source function, click the [Optical source] button in Figure 2-1 to enter the optical source operation interface, as shown in Figure 4-1.

  • Page 32: Chapter V Visual Fault Locator Module

    SS322T Series OTDR User’s Manual-Chapter V Visual fault locator module Chapter V Visual fault locator module If the instrument you purchased is equipped with the function of visual fault locator, click the [VFL] button in Figure 2-1 to enter the operation interface of visual fault locator, as shown in Figure 5-1.

  • Page 33: Chapter Vi End Face Detection Module

    SS322T Series OTDR User’s Manual-Chapter VI End face detection module Chapter VI End face detection module If the instrument you purchased is equipped with the end face detection function, click the "End Face Detection" button in Figure 2-1 to enter the end face detection operation interface, as shown in Figure 6-1.

  • Page 34: Chapter Vii Module Of Optical Time Domain Reflectometer

    SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Chapter VII Module of optical time domain reflectometer 1 Main operation window description Click the [OTDR] button in Figure 2-1 to enter the operation interface of the optical time domain reflectometer.
  • Page 35 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Figure 7-1 Operation interface of optical time domain reflectometer Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 36 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer It displays the current system time, battery power and WiFi connection. Test results display area. The test results are calculated based on the current marker position. Average loss: the loss between marker A and B and the average loss of the optical fiber segment where the cursors A and B are located;...
  • Page 37 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer The distance between the marker position and the reference point. The position between the two markers. Menus bar. Test conditions display column. Display the current test range, wavelength, pulse width, test mode and other test conditions.
  • Page 38 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer event table are calculated from the reference origin. The distance displayed on the left of the reference origin is negative, while the distance displayed on the right is positive.
  • Page 39 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer 2 Event list window description Under the main operation interface shown in Figure 7-1, click the [Analysis] button to analyze the current trajectory curve and display the event list. The schematic diagram of the event list window is shown in Figure 7-2.
  • Page 40 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Event list submenu Event list Figure 7-2 Analysis interface of optical time domain reflectometer Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 41 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Each item in the event list is explained as follows (take the distance unit km as an example) : Event type: : It indicates that this event point may be the starting point of the fiber.
  • Page 42 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer loss passage threshold. Reflection (dB): Reflection loss measured at the current event point. * It indicates that the current measured reflection loss is greater than the set reflection loss passing threshold.
  • Page 43 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer If the calculated joint loss is greater than the set terminal threshold, this point is  taken as the end of the fiber, and all subsequent event points will be ignored and will no longer be displayed.
  • Page 44 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Fig. 7-3 Graphical analysis interface I Click the [Switch Mode] button again, and the interface state will be switched, as shown in Figure 7-4. Shenzhen Skyshl Technology Co.,LTD.
  • Page 45 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Fig. 7-4 Graphical analysis interface II The meaning of each figure in the graphical analysis window is explained as follows: Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 46 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer : It indicates that this event point may be the starting point of the fiber. : It indicates that this event point may be the end of the fiber.
  • Page 47 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer 4 Main menu structure and function overview The main menu bar is displayed by default in the main operation window, which contains seven menu item buttons, as shown in Figure 7-5.
  • Page 48 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Figure 7-5 Menu buttons and main functions of main menu bar of the OTDR The functions of each button on the menu bar are detailed as follows: [Average]: This button is used to control the progressive average of the average time set by OTDR to the test loss curve.
  • Page 49 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer point is not found, a prompt is given. 5) [File] : Enter the file operation sub-menu. It can read files, save files, delete files, transfer files, print files and realize other functions.
  • Page 50 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Figure 7-6 Test condition setting interface Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 51 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Note! Before starting the test, it is necessary to ensure that the tested fiber does not  contain any active signal; otherwise it may cause permanent damage to the instrument.
  • Page 52 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer are automatically ignored. In the event list, connection loss and reflection loss greater than the set loss through the threshold will be marked with “*”. When the connection loss of the event point is greater than the threshold value of the fiber break point, the event point is considered as the fiber break point.
  • Page 53 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Figure 7-7 Link definition setting interface Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 54 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer 5.1 Testing fiber link The operation steps are as follows: Select the test wavelength. Set test conditions such as test wavelength mode. Clean the fiber to be tested.
  • Page 55 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer After curve analysis, test results can be viewed in the event list. 5.2 Test mode of OTDR OTDR has two test modes: automatic test and manual test. Automatic test : When OTDR test mode is set to automatic test: After the test key is pressed, OTDR will automatically adjust the test conditions to test the tested fiber link.
  • Page 56 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer menu bar (at this time, the content on the [Average] menu button changes to [Stop]), and OTDR will average the tested fiber link according to the set test conditions. The...
  • Page 57 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer In the automatic test mode, after the test, the instrument will analyze the test curve  and give a list of events. In other test modes, only when the [Post-test analysis] function is selected can the instrument automatically analyze the test curve after stopping the test.
  • Page 58 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer the same time. When the module equipped with the instrument includes both single and  multi-mode modules, please pay attention to connect the tested fiber to the corresponding test interface to ensure the correct test curve.
  • Page 59 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer ratio of the test curve is better, the curve is smoother, but the resolution is poor. The smaller pulse width has a higher resolution, but the measurement distance is shorter, and the signal-to-noise ratio the test curve is poor.
  • Page 60 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Refractive index: The refractive index of optical fiber or cable can be obtained from the  manufacturer. The refractive index can be set to 1.00000 ~ 2.00000. Note! If the refractive index is not set accurately, the length of the fiber measured is also inaccurate.
  • Page 61 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Lock markers A and B: When this option is selected, the distance between marker A and marker B  is locked. When either marker is moved, the two markers move together, keeping the distance between them the same.
  • Page 62 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Figure 7-8 OTDR test items Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 63 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Average loss At this time, the test results displayed in the OTDR main interface are as  follows: loss between A and B, distance between the markers A and B, and average loss between the optical fiber segment where markers A and B are located.
  • Page 64 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer When testing the average loss, markers A and B must be set on the linear section of  the fiber curve, otherwise the calculated average loss will have a large error.
  • Page 65 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer the event point is greater than the loss analysis threshold, the event point will be marked. Otherwise it will be automatically ignored. Passing threshold of joint loss: In the event list, when the calculated event point connection loss is greater ...
  • Page 66 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer 5.6 Two-way analysis To realize the bidirectional test function, the operation steps are as follows: Click [Two-way Analysis] on the link definition setting interface, as shown in Figure 7-7, and click [OK].
  • Page 67 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Figure 7-9 Two-way test analysis Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 68 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer 5.7 Macro bending analysis To realize the macro bending analysis function, the operation steps are as follows: Click [Macro BendingAnalysis] on the link definition setting interface, as shown in Figure 7-7, and click [OK].
  • Page 69 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Figure 7-7, and click [OK]. Read the curve in the file list that requires unreal peak analysis; Click the [Analysis] button to get the unreal peak analysis results, as shown in Figures 7-10&7-11.
  • Page 70 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Fig. 7-10 Checking the analysis result before unreal peak analysis Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 71 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Fig. 7-11 Checking the analysis result after unreal peak analysis Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 72 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer 5.9 Read file Click the [File] button in the main menu bar of Figure 7-5 to enter the sub-menu bar, as shown in Figure 7-12. Figure 7-12 File manage submenu bar Shenzhen Skyshl Technology Co.,LTD.
  • Page 73 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Click the [Read] button to enter the file reading operation window, as shown in Figure 7- Figure 7-13 File reading operation window Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 74 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Reading path: Memory, U disk and SD card can be selected. File format: EI file or SOR file can be selected. File list: The list shows the curve files that conform to the file format stored under the current path.
  • Page 75 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Figure 7-14 File saving operation window Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...
  • Page 76 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Saving path: Memory, U disk and SD card can be selected. File list: The list shows the curve files that conform to the file format stored under the current path.
  • Page 77 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Table 8-1 Failures and troubleshooting Failures Cause Troubleshooting The battery is dead. Charge the battery. Instrument cannot external power Supply power with AC/DC be started supply adapter. Check whether there is...
  • Page 78 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer a. The fiber length a. Refer to the previous item to error measured is too measure the fiber length accurately. The average loss of large fiber measured is not b.
  • Page 79 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer The end face type of the fiber connector being tested must match Fiber connector type the end face type in the OTDR mismatch optical output connector. Otherwise, a connection must be made with a connection wire.
  • Page 80 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer Whether the optical output flange of OTDR is cracked.  Use the VFL function to check whether the near end of the fiber link under  test has high loss.
  • Page 81 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer reflection peak at the near end of the test curve, please try the following: Please dip a cotton wool ball in an appropriate amount of anhydrous ethanol to ...
  • Page 82 SS322T Series OTDR User’s Manual-Chapter VII Module of optical time domain reflectometer The SNR of the test curve is poor If the signal-noise ratio of the test curve is poor, the accuracy of the curve analysis will be affected. In this case, try the following: In the automatic test or average test mode, please increase the average ...
  • Page 83 SS322T Series OTDR User’s Manual-Part II Technical Description Part II Technical Description Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...

  • Page 84: Chapter Viii Working Principles

    SS322T Series OTDR User’s Manual-Chapter VIII Working principles Chapter VIII Working principles 1 Working principles When light is transmitted in optical fiber, Rayleigh scattering is caused by slight fluctuation of refractive index of optical fiber, and Fresnel reflection is caused by abrupt change of refractive index of optical fiber end face or fault point.
  • Page 85 SS322T Series OTDR User’s Manual-Chapter VIII Working principles Reflective end of an optical fiber Non-reflective end of optical fiber Reflection event point Ascending event point Non-reflective events typically include : (illustrated below) Descending event point  Descending event point Ascending event point ...

  • Page 86: Chapter Ix Technical Parameters

    SS322T Series OTDR User’s Manual-Part III Appendixes Chapter IX Technical parameters 1 Main Functions Test the length and loss of optical fiber or cable, and test the connection loss and reflection loss of connection points. Automatic test function. Test curve graphing function (iOLM).
  • Page 87 SS322T Series OTDR User’s Manual-Part III Appendixes instrument through the computer, and test the loss distribution curve of the fiber. 2 General feathers and technical indicators 2.1 General feathers of optical time domain reflectometer It is shown in Table. 9-1:...
  • Page 88 SS322T Series OTDR User’s Manual-Part III Appendixes AC/DC adapter: allowable range of input voltage: 100V ~ 242V (1.5A), allowable range of frequency: 50/60Hz; Output DC: 17V±3V (2A) Power supply Internal lithium battery: 11.1V, 6800mAh, 75.48Wh Battery working hours:8h Operating temperature: -10℃ ~ 50℃(Battery: 5℃～40℃) Environmental Storage temperature: -40℃...
  • Page 89 SS322T Series OTDR User’s Manual-Part III Appendixes Table 9-2 Technical features of OTDR module Center AVAILABLE IN 850, 1300, 1490, 1310, 1550, 1625 AND 1650 (SEE wavelength APPENDIX B FOR DETAILS) (nm) Dynamic range Up to 46 dB (see Appendix B for details) (dB) 0.4, 0.8, 1.6, 3.2, 8, 16, 32, 64, 128, 256, and 512(single mode, and...
  • Page 90 SS322T Series OTDR User’s Manual-Part III Appendixes Cable Adjust in the range of 0.80000 ~ 1.00000 correction factor Linearity 0.03dB/dB Loss resolution 0.001dB Optical output FC/UPC (standard configuration, Matching: LC/UPC 、 SC/UPC 、 connector ST/UPC) 2.3 VFL function (optional) Table 9-3 Technical features of the VFL function...
  • Page 91 SS322T Series OTDR User’s Manual-Part III Appendixes Output power ≥2mW (typical) Operation mode CW, 1Hz and 2Hz Interface type TOSA 2.4 Optical power meter function (optional) Table 9-4 Technical features of broadband optical power meter NAME CONTENTS Wavelength range 1200nm ～ 1650nm Power range -60dBm ～...
  • Page 92 SS322T Series OTDR User’s Manual-Part III Appendixes Uncertainty ±5% (-25dBm、CW) Uncertainty power measurement Better than ±1.5dB within optical path 2.5 Optical source function (optional) Table 9-5 Technical features of the optical source function NAME CONTENTS Output Same with the operation wavelength of OTDR module...
  • Page 93 SS322T Series OTDR User’s Manual-Part III Appendixes Part III Appendixes Shenzhen Skyshl Technology Co.,LTD. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...

  • Page 94: Appendix A Optical Output Port Cleaning

    SS322T Series OTDR User’s Manual-Appendix A Optical output port cleaning Appendix A Optical output port cleaning 1. During the use of the instrument, please note: The optical output ports must be kept clean, and the optical output ports should be ...
  • Page 95 SS322T Series OTDR User’s Manual-Appendix A Optical output port cleaning test. 1.2 Follow the safety principles below before cleaning: Be sure to turn off the power supply when cleaning.  Failure to follow the prescribed control, regulation, or operating procedures may ...
  • Page 96 SS322T Series OTDR User’s Manual-Appendix A Optical output port cleaning 1.4 Steps to clean the optical output interface and connector Turn off the instrument power.  Unscrew the flange cap completely.  Gently pull out the flange.  Clean the end face of the optical output connector and the flange connector with a ...

  • Page 97: Appendix B Technical Specification For Each Otdr Standard Module

    SS322T Series OTDR User’s Manual-Appendix B Technical specification for each OTDR standard module Appendix B Technical specification for each OTDR standard module Dynamic Range Module Operating wavelength (dB) SS322T-2A 1310/1550nm 37 / 35 SS322T-2B 1310/1550nm 42 / 40 1310/1550nm 45 / 42...
  • Page 98 SS322T Series OTDR User’s Manual-Appendix B Technical specification for each OTDR standard module 1310/1550/1625nm(built-in filter) 37/35/35 SS322T-3B SS322T-3C 1310/1550/1625nm(built-in filter) 45/42/42 SS322T-4A 1310/1490/1550/1625nm(built-in filter) 45/42/42/42 1310/1550/850/1300nm 40/38/26/34 SS322T-4M Note: 1. Only one standard module must be selected. 2. The ambient temperature is 23℃±5℃, with the maximum test pulse width, and the average time is greater than 180s, with SNR=1.
  • Page 99 SS322T Series OTDR User’s Manual-Appendix B Technical specification for each OTDR standard module 3. Measuring range ≤1.6km, pulse width of 3ns, and optical fiber end reflection loss of ≥40dB, with typical value. 4. Measuring range of ≤1.6km, pulse width of 5ns or less, and optical fiber end reflection loss of ≥50dB, with typical value.
  • Page 100 SS322T Series OTDR User’s Manual-Appendix C Remote control command set Appendix C Remote control command set 1 Command Type Function Command Start measurement Wavelength Measurement parameters (distance, pulse width, and sampling mode) Sampling time Refractive index Shenzhen Skyshl Technology Co.,LTD.
  • Page 101 SS322T Series OTDR User’s Manual-Appendix C Remote control command set 2 Command details Description Start measurement LD□1 Command 1: Start measurement Description Set wavelength WLS□<Wavelength>1310/1550/1625 Command <Wavelength>: Unit: nm(Please refer to the module number in the product manual for wavelength available to be set) Shenzhen Skyshl Technology Co.,LTD.

  • Page 102: Appendix C Remote Control Command Set

    SS322T Series OTDR User’s Manual-Appendix C Remote control command set Set measurement parameters (distance, pulse width, and sampling Description mode) STP< Distance mode >,< Distance >,< Pulse width mode >,< Pulse width >,< Sampling mode > <Distance mode>: 0: Manual setting <Distance>:...
  • Page 103 SS322T Series OTDR User’s Manual-Appendix C Remote control command set <Sampling mode > : 0: Fast, 1: Precious Description Set sampling time ALA□<Mode>, <Setting> <Mode>: Average mode. Command 0: Time <Setting>: When the mode is number of times, set the range to 1-9999 times.
  • Page 104 SS322T Series OTDR User’s Manual-Appendix C Remote control command set Contact US If you have questions or suggestion about the product,please contact us for help: Shenzhen SKYSHL Technology Co.,LTD Address: C-211,Qixing Industrial Area,LongTian Road,PingShan Direct,Shenzhen City,Guangdong,China. Sales email/Skype: sales1@skyshl.net After Sales email:af@skyshl.net Website:www.skyshl.net...

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