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User guide 

8

ATLAS 

MINI OTDR    

2.1.2 OTDR Parameter Settings 

Various event  measurement  thresholds,  including  attenuation/reflection/slope/optical  fiber  end 
refractive index and scattering coefficient settings.

 

The refractive index is selected by the user and changing the refractive index setting will change 
the  ranging  result.  The  refractive  index  is  provided  by  the  fiber  optic  cable  or  fiber  optic 
manufacturer. Users are advised  to  calibrate  the group refractive index  with a known length  of 
fiber and remember it. 

The scattering coefficient is usually obtained from the fiber optic cable manufacturer. 

2.1.3 Restore the default 

Restore to factory default Settings. 

2.2 OTDR 

On the OTDR panel is where test data will be displayed on the graph and event table below it. The 
following is the meaning of each label in the OTDR interface: 

Cursor A

Allows the user to have control of the “A” Cursor.    Selecting it a second time allows the user
to have control of cursor “B” 

Curve /Trace operation

Trace manipulation sub-menu, including: cursor, zoom and trace translation.

File operations

File operation submenu, including: open file, save file, multi trace operation and save file.

Event analysis

Trace analysis sub-menu, including: cursor, trace zoom, event list view, add and delete events

More (multi-trace operation and event analysis function description)

-Add event

 : The event list is added accordingly.

-Delete events:

 The event list will delete the event accordingly.

-

Clear choice: 

When multi-trace line loads, clear the selected trace and event list.

-Remove other: 

When multi-trace lines are loaded, clear the list of traces and events other than

the selected trace. 

-Clear all: 

Clear all measurement traces and event lists in the current measurement interface

Summary of Contents for ATLAS MINI OTDR

Page 1: ...well as troubleshooting guide Please read the manual carefully before operating the Atlas Mini OTDR and follow the instructions The contents contained in this manual are subject to modification witho...

Page 2: ...nt temperature is too high please terminate the charging for your safety When the instrument is idle for more than 2 months it should be charged every two weeks to maintain the battery power Do not ta...

Page 3: ...80 C 4 to 176F Technical Specifications Measuring range 100m 500m 2km 5km 10km 20km 40km 60km 100km Sampling resolution Minimum 0 2m The sampling point 64 000 point linearity 0 05dB dB Loss threshold...

Page 4: ...R Visual Fault Locator Power meter Light source II Electrical interface Charging port Micro USB USB 2 0 Type A SD card RJ45 LED III Keys M Manual testing A Auto testing OK select Directional navigatio...

Page 5: ...e main menu to enter the system settings menu and the following settings can be edited Language selection Backlight adjustment Automatic shutdown Date Settings Time Setting Touch screen calibrate Upgr...

Page 6: ...al mode The range and pulse width can both be set manually Pulse Width Pulse width refers to the time width of emitting laser signal during measurement The wider the pulse width is the stronger the op...

Page 7: ...t of data collected Refractive index Is the essential characteristics of optical fiber different manufacturers of optical fiber have slightly different refractive index which is the key parameter to c...

Page 8: ...it The following is the meaning of each label in the OTDR interface Cursor A Allows the user to have control of the A Cursor Selecting it a second time allows the user to have control of cursor B Curv...

Page 9: ...he test needs to be stopped first Event analysis will not be conducted during the real time test and event analysis will only be conducted after the test is stopped REAL TIME MODE Average mode Paramet...

Page 10: ...3 File storage Press FILE to view and edit stored files File operation The menu provides a complete file storage call out function The results of each measurement are automatically saved to internal...

Page 11: ...nds Some analysis parameters need to be set before using graphical event map measurements the OTDR has default classical values if the user is not familiar with the link analysis parameters it is reco...

Page 12: ...tings In a PON network there is usually 1 x N splitters but the loss of each splitter may be different Therefore it is necessary to limit the loss value of the splitter If the value range is set incor...

Page 13: ...tored in the device after measurement can also be printed by desktop computer software please refer to the operation manual of Note the software installation package and software operation instruction...

Page 14: ...ATLAS MINI OTDR User guide 14...

Page 15: ...s two emission modes CW MODE In this mode a continuous stream of visible red light is emitted 2Hz MODE In this mode visible red light flashes at a frequency of 2Hz Press Shutdown Quit or ESC to turn o...

Page 16: ...n Wavelength switching Press the switch TAB to switch the current wavelength Set as the reference value Press the REF TAB to set the current value to the optical power meter reference Clear zero Press...

Page 17: ...or Turn off the light source module Wavelength Switch Press Switch to change wavelength Frequency switching Press the frequency switch TAB to switch the output frequency of the laser Continuous Wave C...

Page 18: ...F Set the reference value Use this to get ready to test for dB loss Zero Restore the set reference value Use this to reset your reference value for a new test 3 5 LED Flashlight The instrument is equi...

Page 19: ...RJ45 standard network cable It can check whether the network cable is connected and whether the line sequence is correct which is convenient for terminal installation and maintenance technicians to a...

Page 20: ...n the instrument and insert the USB disk into the USB port of the instrument 3 The main interface System Settings Software upgrade 4 After entering the upgrade interface the upgrade will be completed...

Page 21: ...tened with alcohol then follow with a dry clean woven lint free wipe Or utilize ferrule rotating end face cleaner for a strictly dry clean procedure After cleaning cover the port with dust cap until n...

Page 22: ...Unsmoothness of waveform The output interface is not properly connected Reconnect the appropriate output interface Use a smaller pulse width Switch to a larger pulse width Saturation flat top appears...

Page 23: ...ATLAS MINI OTDR User guide 23...

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