SKYSHL SS304T-2A1 Mini PRO Optical Time Domain Reflectometer User Manual

SKYSHL SS304T-2A1 Mini PRO Optical Time Domain Reflectometer

PREFACE

• Thank you very much for purchasing and using this series of optical time domain reflectometers. This manual mainly contains the common operation and maintenance information of the instru-ment, as well as the common troubleshooting guide and other information. To facilitate your use, please read the contents of this manual carefully before operating the instrument, and follow the instructions of this manual correctly.
• This manual is only used with this instrument. Any company or person is not allowed to tamper, copy and disseminate the contents of this manual for commercial purposes without the authorization of the company.
• The contents of this manual are subject to change without notice. If you have any questions, please call the supplier, we will provide you with the best service!

Due to the need of design improvement, the contents are subject to change without notice.

Summary
This series of OTDR is a multi-functional optical measuring instrument, which integrates auto OTDR, expert OTDR, event map, optical power meter, visual fault location, power-adjustable stable laser source, end face inspect, optical loss test, RJ45 cable length / sequence test, RJ45 cable tracking, and other functions. It has a touch screen and keys. It is the right assistant for optical cable construction, installation and maintenance, project acceptance and on-site repair.

Warning
When using the instrument, do not look directly at the laser output port or the end of the optical fiber with your eyes, avoid eye damage! Except for 1625nm/1650nm, all the others are off-line test wave-lengths, which will cause damage to internal components of the instrument if forced to use! Any change or modification not explicitly permitted in this manual will deprive you of the right to operate the equipment. To reduce the risk of fire or electric shock, do not expose the equipment to thunderstorms or humid environments. To prevent electric shock, please do not open the shell. It must be repaired by qualified personnel designated by the manufacturer.

Attention

• Ba ttery: the battery is a special polymer lithium battery, the charging voltage is 5V/2A, and the charging temperature range is 0 ℃~ 50 ℃. When the ambient temperature is too high, the charging will automatically terminate. The battery should be charged every one month to avoid long storage time and failure of the battery due to self-discharge. The temperature range of the battery during long-term storage is: – 40 ℃ ~ 50 ℃.
• Please use the special adapter attached to the instrument box and use the external power supply in strict accordance with the specifications, otherwise, the equipment may be damaged.
• End Face Cleaning: Before testing, clean the end face of the tested fiber joint with alcohol cotton.

LCD screen: the display of this series of instruments is 4.3 inch color LCD. To maintain good viewing effect, please keep the LCD screen clean. When cleaning, wipe the LCD screen with soft fabric.

Host

Function keys

Main interface

Enter the main menu after power on, there are 12 function modules. Press the direction key to select the module, and then press the “OK” key or directly press the function icon to enter the corresponding function interface.

Press the “Shortcut menu” icon to enter the quick operation menu, and press different function icons to enter the corresponding function interface or realize the corresponding operation function.

Auto OTDR

OTDR is an optoelectronic integrated instrument made of Rayleigh scattering and Fresnel reflection when an optical signal is transmitted in optical fiber. It is widely used in the maintenance, construction and monitoring of optical cable lines. It can measure the length of optical fiber, transmission attenuation of optical fiber, attenuation of connector, and fault location.

Auto OTDR: it only needs to set the wavelength and measurement time, and other parameters are automatically selected by the instrument to complete the test. For the specific meaning and explanation of each parameter, please refer to “expert OTDR”.

Attention: Please do not test live fiber except live wavelengths!

Expert OTDR

Expert OTDR： parameters such as wavelength, test range and pulse width shall be set.
The test results are more accurate by selecting the appropriate measurement parameters in the expert mode. You can zoom in on the curve to see the details of each event.

Attention: Please do not test live fiber except live wavelengths!

Parameter setting

• Wave: the emitted wavelength, which can be measured at 1310nm, 1550nm or 1310/1550nm at the same time. Test range: usually choose about 2 times of the length of the optical fiber to be tested
• Pulse width : refers to the time width of the optical pulse signal emitted during test. The larger the pulse width, the stronger the optical power injected into the optical fiber, the stronger the backscattering signal of the optical fiber is, and the farther the effective detec-tion distance of the OTDR can be. However, the large pulse width will cause saturation of the initial reflection signal and a large blind area. The choice of pulse width is related to the length of the optical fiber. The longer the length, the larger the pulse width, which can only be modified in real-time/average measurement mode.
• IOR : provided by optical cable or fiber manufacturer.It is the key parameter for calculating the distance, and can not be set arbitrarily.

Threshold/Criterion

Threshold settings

• Event loss threshold: set the loss threshold of the connection point, fusion point or macro bend in the link that can be tested, between 0.2~30dB, and the default value is 0.2dB. Events larger than the set threshold will be listed in the event table, or those will be ignored. Reflection threshold: set the return loss threshold of the link reflection events that can be tested, ranging from 10dB to 60dB, and 40dB by default.

• End threshold: set end loss at the end of the link that can be tested, ranging from 1~30dB, 10dB by default. Eligibility criteria
  Set the judgment value for the average loss of connec- tion/fusion/bending/link. If it is less than the value, it is judged as “PASS”, otherwise it is “FAIL”.

• Connection loss: reflection event, refers to flange, SC, LC, and other joints;

• Splicing loss: non reflective event, refers to fusion; Bending loss: nonreflective events caused by fiber bending, need to be tested at two wavelengths at once; Average loss: the loss value per kilometer of the link under test.

OTDR-Curve

• Select correct parameter, and the test results such as curve and event list will be displayed after the test is completed. Curve zoom
• Press the [zoom] menu to enter the zoom-in and zoom-out mode.
• Zoom in or out in X direction
• Zoom in or out in Y direction
• Press [1:1] to return to the original scale display

Event list

• List: the tested results are displayed in the form of a list. Total length: the total length of the link under test. Total loss: the total loss of the link under test.
• Slope: the loss per kilometer of the link under test. Total events: the total number of events, the number of passed events and the number of failed events of the link under test.

In the event list:

• NO.: the order of the current event.
• Type: the type of the current event.
• Distance: the location of the current event.

• Section: the distance between the previous event and the current event.
• Loss: the loss of the current event.
• Total loss: the loss from the starting point to the current event.
• Slope: the loss per kilometer from the starting point to the current event.
• Reflection: the return loss of the current event.

OTDR-File save

After the measurement, press [save] to save the file, enter the file name, and press [enter] to save the file. You can also press [Fastsave] to save the file. The file is saved in a folder named the same day’s date.
Auto save: open the auto save function, the file name will be automatically generated according to the rules; File naming method (only valid for “auto save” and “one click save”):

• ①+④: file name + fiber number naming, fiber number increasing in order;
• ①+②+④: file name + wavelength + fiber number naming, fiber number increasing in order;
• ①+②+③+④: file name + wavelength + pulse width + fiber number, and the fiber number increases in order. File name: enter the file name manually;

Optical fiber code ID: the optical fiber number and code set when the line is initially laid;

• Location A： Link start point location
• Location B ：Link termination point location Direction：Optical fiber test direction，from A to B， from B to A；
• Operator: enter the name of the tester.

File Operation

File operation
All the test curves are saved in the standard SD card of the instrument. Press [File] to enter the file operation interface. You can open, delete and rename files.

Event Map
The function is fully one key automatic test, and the information such as the length of the optical fiber link to be measured, the type of the joint and the position of the breakpoint are displayed graphically, and the results are clear and easy to understand.

Attention: Please do not test live fiber except live wavelengths!

OPM

It is used for signal power tests and insertion loss tests of various equipment and photoelectric components. It can identify and measure the power of 270/ 330/1k/2kHz frequency laser.

• Wavelength: switch the test wavelength.
• Reference: set the current power as the reference power.
• Calibration: enter the calibration mode.
• Threshold: set the threshold value of power measurement. If it exceeds the threshold value, it will be marked in green; if it is lower than the threshold value, it will be marked in red.

The conversion relations of absolute power, relative power, and linear power are as follows:

• PAbs.Pow =10lgPLin.Pow/1mW
• PRel.Pow= PAbs.Pow-PRef.Pow

VFL

The visible fault locate (VFL) is injected into the optical fiber, and the position of optical fiber fault point can be easily and accurately determined by observing the light leakage position on the tested fiber. It is suitable for the detection of bare optical fiber, optical fiber jumper, and other optical fiber which can leak red light, and the near end fault point and high loss section caused by micro bending.

• Open : turn on the VFL and output in continuous mode
• 1Hz: VFL flashes at 1Hz
• 2Hz: VFL flashes at 2Hz frequency
• Close: turn off VFL

Warning: Avoid looking directly at the laser output port, laser will cause damage to human eyes!

Laser Source

• It can output laser with the same wavelength as the OTDR function, which can be used to test the parameters of telecommunication, CATV, and LAN optical cables, test the insertion loss, isolation, and return loss of optical passive components, and test the wavelength responsivity of the detector.
• There are five working modes: CW, 270Hz, 330hz, 1kHz and 2kHz.
• Open: turns on the laser source
• Wavelength: switch the wavelength of laser source Mode: switch laser source frequency, CW, 270Hz, 330Hz, 1kHz, and 2kHz
• Power +: increase the output power
• Power -: reduce the output power
• Prompt the power adjustment progress bar at the bottom: sliding left and right can reduce and increase the output power of the light source respectively.

Warning: Avoid looking directly at the laser output port, laser will cause damage to human eyes!

RJ45 Sequence/Length

• Cable sequence： When testing, please connect to the remote module at the bottom of the instrument. There are two kinds of wires for RJ45 connectors: straight line and interleaved line.

• Direct connection test: during the test, the indicator lights of the host and remote device flash from 1 to 8 one by one.
  Interleaved wire connection test: during the test, the indicators at the remote test end will flash one by one in the order of 3, 6, 1, 4, 5, 2, 7, 8.

• Cable length test: test the length of the network cable. Calibration: input the overall calibration factor of network cable length.

• Display length = last result × calibration factor. Network cable standard: T568A/T568B, the color order of network cable is different according to different standards.

Attention: The port is designated as the port on the right side of the OTDR displayed in yellow color. Please connect correctly or it may cause damage to the equipment!
Warning: Please cut off the electricity before the test！

RJ45Cable Tracking

• After the cable tracking function is started, touch the cable under test with the tracker, and then hear the sound of continuous “drip drop”, when the target cable is found.
• The equipment is pressure-resistant and can be directly tested online. Weak current equipment with DC voltage less than 60V such as ethernet switch and router. Test: turn on RJ45 cable tracking function.
• The line finding mode of this machine is the digital radar type, which has strong anti-jamming ability. According to the target distance and proximity, the frequency of prompt tone is different.

Attention: The cable tracking port is designated as the port on the left side of the OTDR displayed in yellow. Please connect correctly or it may cause damage to the equipment!

System setting
Set the system’s automatic shutdown, backlight brightness, time, and other information.

• Automatic shutdown: 5/15/30/45/60 minutes/never
• Backlight brightness: 20%/40%/60%/80%/100%Sound: turn on or off touch and key tone
• Language: displays the native language type
• USB connection: connect to the computer after opening and transfer data
• Time & date: set the time and date
• Restore factory settings: restore default values Upgrade: native software update
• System information: check the local information and alarm record.

OTDR-Pulse selection

Auto O TDR: OTDR will automatically select the most suitable range and reference pulse width. Expert OTDR (real-time/average test): test range and pulse width can be adjusted manually. The list on the right is for reference only:

Faults and Solutions
The description in the table on the right is for reference only. Please refer to the new instructions for detailed usage. In the process of using the instrument, if you have any questions, you can contact the instrument supplier.

Maintenance

Cleaning of connectors

• The optical output interface of this series of OTDR is a replaceable universal interface, and the end face must be kept clean during use. When the instrument fails to test the normal curve or the test result is not accurate, first consider cleaning the connector.
• When cleaning, be sure to turn off OTDR and visible red light fault location function. Screw off the output port and wipe the connection end face with a special dust-free paper towel or cotton swab wetted with alcohol.
• At the same time, please cover the dust cap after using the instrument, and keep the dust-proof clean at the same time.

Instrument screen cleaning
The display of this series of optical time domain reflectors is 4.3 inches TFT full view color LCD with a capacitive touch screen. When using, do not click on the LCD with sharp objects, or the derivative LCD screen may be damaged. When cleaning, clean the LCD screen with soft paper. Do not wipe the LCD screen with an organic solvent, otherwise, it may damage the LCD screen.

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MORE INFORMATION

• After-sales : af@skyshl.net
• Website: www.skyshl.net
• Whatsapp: +086-18923700205
• Skype: sales1@skyshl.net
• Download file weblink: https://www.mediafire.com/folder/x0mjlw7iwdyof/SS304T

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