Page 1
Multifunctional OTDR
User’s Manual
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
Page 2
Multifunctional OTDR
Test Platform
Page 3
PROMAX OTDR User’s Manual
Notices
No part of this manual may be reproduced in any form or by any means (including electronic
storage and retrieval or translation into a foreign language) without prior agreement and
written consent from Promax, as governed by international copyright laws.
Warranty
The material contained in this document is subject to change without notice. Promax makes no
warranty of any kind with regard to this material, including, but not limited to, the implied
warranties of merchantability and fitness for a particular purpose. Promax shall not be liable
for errors contained herein or for incidental or consequential damages in connection with
furnishing, performance, or use of this material.
The battery is a consumable part and is not subject to the OTDR warranty.
ISO9001 Certification
Produced to ISO9001 International Quality System Standard as part of Promax, is objective of
continually increasing customer satisfaction through improved process control.
Safety Instructions
During each stage of operation of this instrument, please always observe the following safety
instructions. Not taking any safety precautions or following the instructions will violate the
safety standards of design, manufacturing and application of these instruments. In no case will
Promax bear the responsibilities for consequences incurred by violation of the following
instructions.
GENERAL
This product is a Safety Class 1 instrument. The protective features of this product may be
impaired if it is used in a manner not specified in the operation instrument.
- iii -
Page 4
PROMAX OTDR User’s Manual
Environmental Conditions
It is designed to operate at a maximum relative humidity of 95% and at altitudes of up to 2000
meters. Refer to the specifications tables.
Before Applying Power
Verify that the product is set to match the available line voltage, the correct fuse is installed,
and all safety precautions are taken. Note OTDR’s external markings described under
Symbols.
Do Not Operate in an Explosive Atmosphere
Do not operate OTDR in the presence of flammable gases or fumes.
Do Not Remove OTDR Cover
Operating personnel must not remove instrument covers. Component replacement and
internal adjustments must be made only by qualified service personnel.
Instrument that appears damaged or defective should be made inoperative and secured against
unintended operation until they can be repaired by qualified service personnel.
Safety Terms Used in This Manual
The WARNING sign denotes a hazard. It calls attention to a
procedure, practice, or the like, which, if not correctly performed or
adhered to, could result in personnel injury. Do not proceed beyond a
WARNING sign until the indicated conditions are fully understood
and met.
The CAUTION sign denotes a hazard. It calls attention to an
operating procedure, or the like, which, if not correctly performed or
adhered to, could result in damage to or destruction of part or the
entire product. Do not proceed beyond a CAUTION sign until the
indicated conditions are fully understood and met.
The NOTE sign information that may be beneficial during the use
and maintenance of OTDR.
- iv -
Page 5
PROMAX OTDR User’s Manual
Laser Safety Announcements
OTDR is a laser instrument. Users should avoid looking directly into the optic output.
Always avoid looking directly into the optical output port, when OTDR is
working. And the use of microscope or magnifier should also be avoided, for the
use of such devices can focus a highly intense beam onto the retina, which may
result in permanent eye damage.
Always replace protective dust cap on the probe port when OTDR is not being
used.
Always avoid looking directly at unconnected end of optic fiber in testing and
make the unconnected end pointing at a non-reflective object if available.
Electric Safety Announcements
If need to assure instrument thorough outage, please pull up power line and take the battery
out.
AC/DC adaptor should be used only indoors.
The ambient air of OTDR place should be free flow.
Any using of electric tools near inflammable gas or smog will be a big safety threat.
In order to avoid electric shock, please don’t use instrument if there is damage on any
outside surface part(top cover, panel, etc)
Only qualified professional staff can do electrified adjustment, maintenance and
repair to the operating instrument.
Even OTDR power is cut off; the capacity in OTDR might be electrified in some time
after that.
- v -
Page 6
PROMAX OTDR User’s Manual
Agreement and Statement
Button or menu: The operating units in GUI that can be clicked by stylus, indicated by letters
in square brackets, e.g. [Setup] and [Start].
Key: The function key on front panel, indicated by letter or icon in quotation marks, e.g.
“ ” (POWER) and “ ” (BACKLIGHT).
Option label: Indicated by letters in brace, e.g. {Event} and {Trace Parameter}.
Label and subordinate specific options: Indicated by letters in angle brackets and square
brackets, e.g. <Mode> [Average], which stands for averaging mode option; <Wavelength>
[1310nm], which stands for 1310nm wavelength option.
Mode or module: Indicated by letters in quotation marks, e.g. “OTDR” and “OCI”.
Conversation: Indicated by letter in quotation marks e.g.”Confirm＂and＂Cancel＂.
- vi -
Page 7
PROMAX OTDR User’s Manual
Contents
Notices .................................................................................................................................. iii
Warranty.............................................................................................................................. iii
ISO9001 Certification ......................................................................................................... iii
Safety Instructions............................................................................................................... iii
Laser Safety Announcements ..............................................................................................v
Electric Safety Announcements...........................................................................................v
Agreement and Statement....................................................................................................vi
1 General Information ..........................................................................................................1
1.1 Scope of this Manual.....................................................................................................1
1.2 Introduction ...................................................................................................................1
1.3 Product Appearance....................................................................................................... 2
1.4 Front Panel Indicators Introduction...............................................................................2
1.5 Front Panel Keys Instruction ......................................................................................... 2
1.6 Operating Parts Instructions ..........................................................................................3
1.7 Instrument Interfaces Instructions .................................................................................4
1.8 GUI Icons Instruction....................................................................................................5
1.9 Power Instruction ..........................................................................................................6
1.10 Use of Rechargeable Battery.......................................................................................6
2 Basic Operation ..................................................................................................................8
2.1 Foreword .......................................................................................................................8
2.2 Power On/Off ................................................................................................................8
2.3 Enter and Exit Power Saving Mode ..............................................................................8
2.4 Adjust LCD Brightness..................................................................................................9
2.5 Start Application............................................................................................................9
3 Common Settings and Special Settings...........................................................................10
3.1 Main Setting Menu......................................................................................................10
3.2 Select language............................................................................................................ 10
3.3 Automatic Power Saving Setting................................................................................. 11
3.4 Load Default................................................................................................................ 11
4 Basic Information of OTDR Module .............................................................................. 11
4.1 Principle of OTDR Module......................................................................................... 11
4.2 Measurement Application of OTDR............................................................................12
4.3 Basic Definition and Classification of Events.............................................................13
4.3.1 Reflection Events..................................................................................................13
4.3.2 Non-reflection Events...........................................................................................13
4.4 Optic Fiber Link and Event Types...............................................................................
5 Instruction of OTDR Modules of OTDR........................................................................15
5.1 Main Features of OTDR Module.................................................................................15
5.2 Measurement Mode of OTDR module........................................................................ 15
5.2.1 Auto Mode and Manual Mode..............................................................................15
5.2.2 Averaging Mode and Realtime Mode...................................................................15
5.2.3 In-service Mode and Normal Mode......................................................................16
5.3 OTDR Interface...........................................................................................................17
5.4 Icons Instruction in OTDR Interface...........................................................................17
14
- vii -
Page 8
PROMAX OTDR User’s Manual
5.5 Trace Processing..........................................................................................................18
5.6 Available OTDR Module............................................................................................. 18
6 Prepare to Use OTDR ......................................................................................................19
6.1 Connectors Instruction.................................................................................................19
6.2 Cleaning and Connecting to Optical Fiber ..................................................................19
7 Test with OTDR ................................................................................................................20
7.1 OTDR Quick Test ........................................................................................................20
7.2 Trace Processing..........................................................................................................21
7.3 Unsaved Traces............................................................................................................21
7.4 Save Trace ...................................................................................................................21
7.5 Open Saved Trace........................................................................................................22
7.6 Trace Viewing and Analysis Operation .......................................................................23
7.7 Information and Function Windows ............................................................................24
7.7.1 Switch Information and Function Windows.........................................................24
7.7.2 Events info reference............................................................................................24
7.7.3 Reanalyze .............................................................................................................24
7.8 Upload Trace to PC .....................................................................................................25
7.9 Get help on OTDR ......................................................................................................25
8 Testing Optical Fiber in Auto Mode................................................................................26
8.1 Instruction of Auto Testing Mode................................................................................26
8.2 The procedures of auto testing mode...........................................................................26
9 Testing the optical fiber in Manual mode ....................................................................... 28
9.1 Common using parameters for OTDR testing.............................................................28
9.2 OTDR test parameters Configuration..........................................................................28
9.3 OTDR display and other Configuration ......................................................................29
9.4 Real time and average test mode ................................................................................. 29
9.5 Range Configuration ...................................................................................................30
9.6 Pulse Width Configuration ..........................................................................................30
9.7 Averaging Time Configuration ....................................................................................31
9.8 Laser Wavelength Configuration ................................................................................. 31
9.9 IOR Setting.................................................................................................................. 31
9.10 Scatter Coefficient (Back Scatter) Setting................................................................. 31
9.11 Non-reflection Threshold (Splice Loss Detecting Threshold) Setting.......................32
9.12 Reflection Threshold (Reflection Detecting Threshold) Setting ...............................32
9.13 End Threshold (Optical Fiber End Detecting Threshold) Setting..............................32
9.14 Load Default.............................................................................................................. 32
10 Use OTDR Test FTTx-PON Network Optical Fiber Link ..........................................33
10.1 Use PON Optimized OTDR Instrument....................................................................33
10.2 Select the Proper Distance Range..............................................................................33
10.3 End Threshold (Optical Fiber End Detecting Threshold).......................................... 33
10.4 Test parameter recommendation value .......................
...............................................34
1 Trace Analysis and Event Operation.............................................................................35
1
11.1 Open Trace File .........................................................................................................35
11.2 Simultaneous Display Multi Traces...........................................................................36
11.3 Close Trace File .........................................................................................................36
11.4 Trace Display and Operating Instruction ...................................................................36
11.5 Switch And Move Markers........................................................................................ 37
- viii -
Page 9
PROMAX OTDR User’s Manual
11.6 Switch And Move the Marked Point .........................................................................38
11.7 Fast Move the Markers Outside the Window ............................................................39
11.8 Lock AB Markers ......................................................................................................39
11.9 Zoom the Trace..........................................................................................................39
11.10 Cross Frame to Zoom the Trace...............................................................................40
11.11 Use Zoom Toolbar to Zoom the Trace.....................................................................40
11.11.1 Revert the Whole Trace View ...........................................................................40
11.11.2 Zoom In Trace Horizontally .............................................................................40
11.11.3 Zoom Out Trace Horizontally...........................................................................41
11.11.4 Zoom In Trace Vertically ..................................................................................41
11.11.5 Zoom out Trace Vertically ................................................................................41
11.12 Remember the Zoom Status Automatically.............................................................41
11.13 Move the Magnified Trace Window ........................................................................41
11.14 Operation of Event Options..................................................................................... 43
11.14.1 Display the Event on the Trace and Locate Event In Even Sheet..................... 44
11.14.2 Add Event .........................................................................................................44
11.14.3 Delete event......................................................................................................45
11.15 Analysis Detecting Threshold Configuration...........................................................46
11.16 Reanalyze the Trace.................................................................................................47
11.17 Analyze the Optical Fiber in Specific Optical Fiber Link .......................................48
11.18 Set Trace Display Parameter....................................................................................48
11.19 Set the Length Unit..................................................................................................50
11.20 Display or Switch the Trace.....................................................................................50
11.21 Check Current Trace Parameters .............................................................................50
12 Manual Trace Analysis...................................................................................................52
12.1 Use Markers ..............................................................................................................52
12.2 Event Location and Loss Information ....................................................................... 52
12.3 Measure Insertion Loss (2-point and 5-point method) ..............................................52
12.4 Measure Attenuation (2-point and LSA method).......................................................55
12.5 Measure Reflectance .................................................................................................56
13 Trace File Management..................................................................................................58
13.1 Save Trace in Different Formats................................................................................58
13.2 Copy, Move, Rename and Delete Trace ....................................................................58
13.3 Check Disk Space......................................................................................................59
14 Print OTDR Report........................................................................................................60
14.1 Trace Information......................................................................................................60
14.2 Check and Edit Trace Information.............................................................................60
15 OTDR Module Built-in Stabilized Laser Source LS100..............................................62
16 OTDR Module Built-in Optical Power Meter PM100.................................................62
17 VFL Application..............................................................................................................65
18 OCI (Optical Connector Inspector) of MCI100...........................................................66
18.1 Inspect the Optical Connector .............................
2 Focus Control ............................................................................................................67
18.
18.3 Capture Image ...........................................................................................................67
18.4 View the saved Image................................................................................................68
......................................................66
19 VPN Function .................................................................................................................69
20 File Management ............................................................................................................70
- ix -
Page 10
PROMAX OTDR User’s Manual
20.1 Transfer Files or Folders between OTDR and USB Storage Device.........................70
20.2 Delete Saved Files ..................................................................................................... 70
21 Maintenance and Calibration........................................................................................71
21.1 Cleaning of Optical Interfaces...................................................................................71
21.2 Necessity of Cleaning................................................................................................71
21.3 Safety Instructions before Cleaning ..........................................................................71
21.4 Cleaning Tools........................................................................................................... 71
21.5 Cleaning Procedure ...................................................................................................72
21.6 Battery Charging Instructions....................................................................................72
21.7 Battery Instruction.....................................................................................................72
21.8 Charge Battery...........................................................................................................73
21.9 Battery Calibration ....................................................................................................73
21.10 Change Battery ........................................................................................................ 73
21.11 Calibration Requirements........................................................................................74
21.12 Shipment..................................................................................................................74
22 Troubleshooting ..............................................................................................................75
22.1 Common Problems and Solutions .............................................................................75
22.2 Trace Measurement Problems and Solutions.............................................................76
22.3 Finding Information on Promax Website...................................................................76
23 Warranty .........................................................................................................................77
23.1 Terms of Warranty.....................................................................................................77
23.2 Exclusion................................................................................................................... 77
23.3 Warranty Registration................................................................................................ 77
23.4 Returning Instruments ...............................................................................................77
23.5 Contacting Customer Service....................................................................................78
- x -
Page 11
PROMAX OTDR User’s Manual
FIGURES CONTENTS
Fig. 1.1 Front View ................................................................................................................2
Fig. 1.2 Front View ................................................................................................................2
Tab. 1.1 Front Panel Indicators Introduction .....................................................................2
Tab. 1.2 Front Panel Keys Instruction................................................................................. 3
Tab. 1.3 Operating Parts Instructions .................................................................................4
Tab. 1.4 nterfaces on Platform Top......................................................................................4
Tab. 1.5 Optical Ports............................................................................................................5
Tab. 1.6 GUI Icons Instruction ............................................................................................. 6
Fig. 2.1 Main Interface..........................................................................................................9
Fig 3.1 Main Setting Menu .................................................................................................10
Fig.4.1 Reflection Event ......................................................................................................13
Fig.4.2 Non-reflection Event...............................................................................................14
Tab.4.1 Optic fiber link and event type .............................................................................14
Fig. 5.1 OTDR Main Interface ...........................................................................................17
Tab.5.1 Buttons and icons in OTDR main interface.........................................................18
Fig. 7.1 OTDR Trace Acquisition Interface.......................................................................20
Fig. 7.2 Save dialog window................................................................................................ 22
Tab. 7.1 Information and Function Windows Description...............................................24
Tab. 9.1 OTDR common use parameters sheet.................................................................28
Tab. 9.2 OTDR test parameters setting sheet....................................................................29
Tab. 9.3 OTDR display or other parameters setting ........................................................29
Tab. 10.1 Recommended parameter values for PON network optical fiber link........... 34
Fig. 11.1 Trace file opened................................................................................................... 35
Fig. 11.2 Events options.......................................................................................................43
Fig. 11.3 Add event ..............................................................................................................45
Fig. 11.4 Add Event Dialog Window ..................................................................................45
Fig. 11.5 Delete Event.......................................................................................................... 46
Fig. 11.6 Parameters analysis edit frame...........................................................................47
Fig. 11.7 Options of test display area .................................................................................49
- xi -
Page 12
PROMAX OTDR User’s Manual
Fig. 11.8 Check the trace parameters ................................................................................50
Fig. 12.1 Event location and loss information...................................................................52
Fig. 12.2 2-point Loss ..........................................................................................................53
Fig.12.3 5-point method ......................................................................................................53
Fig. 12.4 Measure insertion loss in 5-point method .......................................................... 54
Fig. 12.5 View attenuation...................................................................................................55
Fig 12.6 Measure reflectance ..............................................................................................57
Fig 13.1 File explorer...........................................................................................................58
Fig. 13.2 Check disk space utilization................................................................................59
Fig. 14.1 Trace information and editing ............................................................................61
Fig.15.1 .................................................................................................................................62
Fig. 16.1 Optical Power Meter............................................................................................63
Fig. 17.1 VFL operation ......................................................................................................65
Fig. 18.1 Optical Connector Inspector Interface ..............................................................66
Fig. 18.2 Measurement........................................................................................................67
Fig. 19.1 VPN Function.......................................................................................................69
Tab. 21.1 Common Problems and Solutions ..................................................................... 76
Tab. 21.2 Trace Measurement Problems and Solutions...................................................76
- xii -
Page 13
PROMAX OTDR User’s Manual
1 General Information
1.1 Scope of this Manual
Thank you for purchasing Promax instrument. Please read this manual carefully before using
any of Promax series fiber-optic instrument. Always observe the warnings and cautions
appearing throughout this manual.
This manual contains the necessary information for proper operation and maintenance of
Promax OTDR, troubleshooting instructions as well as information regarding obtaining
services.
1.2 Introduction
OTDR series are the compact multi-functional platform. It is convenient and
accurate for auto/manual testing, multi-wavelength testing, Integrated intelligent
and multi-functional analysis.
OTDR is easy to handle with large color LCD touch screen and smart user-interface. Linux
system, large built-in and extended memory enable convenient test data storage, access and
transfer to PC via USB for further analysis and reporting. Management software on the PC
can be further analysis the data.
Product has the following characteristics:
7 inch color LCD touch screen of sharp display, 4-level adjustable brightness;
Convenient and flexible handling: Touch-screen, keypad and external USB
mouse/keyboard;
Large-capacity data storage;
USB data interface (Host and Client), Supports a variety of data backup;
PC software for test data analysis and reporting;
Auto screensaver feature for power saving;
AC/DC dual power supply;
Optimized power management: 10 hours continuous operation.
Optional Built-in Functional Modules
OTDR function module, detail specification for later chapters
LS100: Stabilized Laser Source Module (as OTDR)
PM100: Optical Power Meter Module
MCI100: Optical Connector Inspector Module, detail specification for later
chapters
RC100: Remote control Module
LM100: Link Image Module
- 1 -
Page 14
PROMAX OTDR User’s Manual
1.3 Product Appearance
Fig. 1.1 Front View
Power On/Off key is lower than other keys to avoid misoperation.
Fig. 1.2 Front View
1.4 Front Panel Indicators Introduction
Icon Status Meaning
Off System off
Power On/Off
Charging Indicator
Laser Indicator
Tab. 1.1 Front Panel Indicators Introduction
Green, constant System on
Red, blinking Low battery, charging needed
Red, constant Charging, with power adaptor
Green, constant
Off
Red, blinking Laser on
Off Laser off
1.5 Front Panel Keys Instruction
Name Function
Press to start, press again to stop.
Start/Stop
Esc
Launch selected module in main interface.
Back
Move up or extended function to be defined, please refer to
Help of current interface.
Move down or extended function to be defined, please refer
Help of current interface.
Charging complete, with power
adaptor
Power adaptor unplugged or
connection is poor
- 2 -
Page 15
PROMAX OTDR User’s Manual
Name Function
Move left or extended function to be defined, please refer Help
OK
of current interface.
Move right or extended function to be defined, please refer
Help of current interface.
Confirm button to confirm certain operations, please refer
Help of current interface.
Nav
Del
Num0～9
LIGHT
POWER
Enter Help of current interface.
In character input box editing, provide backward delete
functions.
In the digital input box for editing, digital input function.
LCD brightness adjustment.
4-level brightness, press to toggle between different levels.
Call the soft keyboard.
Call the save window key.
Power on/off
Press to power on system when system is off.
When system is on, press and hold 1 second to enter
screensaver mode for power saving; press and hold 3 seconds
to power off system.
In screensaver mode, press any key and hold 1 second to
restore normal status (Or by clicking anywhere on touch
screen with stylus, clicking mouse left key)
Tab. 1.2 Front Panel Keys Instruction
1.6 Operating Parts Instructions
Name Operation Description
Click
Double click
Stylus
Mouse
(Optional)
Draw frame
Click and hold
Left click
Left double
click
Left key draw
frame
Select certain module or menu.
Mainly used in file explorer window.
1. Batch files selection in File Explorer.
2. Zoom in/out selected part of displayed
trace.
1. Open menu or select in File Explorer.
2. Select object in other windows.
Similar to stylus, more convenient for
desktop application.
- 3 -
Page 16
PROMAX OTDR User’s Manual
Name Operation Description
Right click
Tab. 1.3 Operating Parts Instructions
Stylus shouldn’t touch the screen insufficient, otherwise might cause unable to
operating regularly
Stylus shouldn’t touch the screen with too much force, otherwise might damage the
LCD and touch screen.
Please apply adequate force with stylus on the touch screen.
Only use OTDR stylus, do not use other device. Sharp object like ball pen tip may
smear or damage the touch screen.
1.7 Instrument Interfaces Instructions
·Interfaces on Platform Top (Left to right)
Name Appearance Icon Description
Power
Audio Output
USB Slave
RJ45 Port
Serial Interface
Tab. 1.4 Interfaces on Platform Top
Power adaptor input
Connection to USB
devices, e.g. printer,
mouse, keyboard and USB
interface testing devices
(Driver needed)
10/100Mbps Ethernet port
For system adjustment
(Not open to user)
·Optical Ports
OTDR is equipment with FC/PC connectors (Interchangeable SC, ST and LC)
Name Appearance Icon Description
Optical Port
OTDR Normal OTDR port
- 4 -
Page 17
PROMAX OTDR User’s Manual
Name Appearance Icon Description
Tab. 1.5 Optical Ports
The amount of connectors depends on module configuration, not all modules are
equipped with abovementioned optical ports
VFL Visible Red Laser port
PON Power Meter
OLT
downstream input
PON Power Meter
ONT
upstream input
Stabilized Light Source
SLS
port
Multi-wavelength Optical
OPM
Power Meter port
OTDR is a laser instrument. Users should avoid looking directly into
the optic output. And the use of microscope or magnifier should also
be avoided, for the use of such devices can focus a highly intense beam onto the retina,
which may result in permanent eye damage.
Laser Radiation: To avoid serious eye injury, never look directly into the optical outputs
of fiber optic network equipment, test equipment, patch cords, or test jumpers.
Always avoid looking directly into the optical output port, when OTDR is
working.
Always replace protective dust cap on the detector port when OTDR is not being
used.
Always avoid looking directly at unconnected end of optic fiber in testing and
make the unconnected end pointing at a non-reflective object if available.
1.8 GUI Icons Instruction
Icon Status Operation Description
Appear -- Power adaptor plugged
Green part
change
Appear
--
--
Showing battery power level with
percentage behind.
Battery unplugged or connection is
poor.
- 5 -
Page 18
PROMAX OTDR User’s Manual
Icon Status Operation Description
---
---
---
---
---
Tab. 1.6 GUI Icons Instruction
Click Start selected function
Enter Setup interface, including
Click
Click
Click
Click
Interface style, Language and
System setting etc.
Enter Help of current interface
Enter “About” interface
System off
1.9 Power Instruction
OTDR uses following power supplies:
AC adaptor (Connect to standard outlet – Indoor use only)
Li-ion rechargeable battery (Auto power supply when AC adaptor is unplugged)
Battery dock cover must be closed properly when OTDR is working.
AC adaptor and battery power supply can be switched without affecting operation
After AC/DC power adaptor is connected, built in Li-ion battery will be
automatically charged.
When only using Li-ion battery as power supply, following situations may cause
OTDR automatically power off or dysfunction
The battery power indicator displayed on LCD screen will turn red (Low battery)
when the battery power is insufficient and OTDR may automatically power off.
If unused for a long time, OTDR may not power on properly, please connect power
adaptor and recharge the battery.
1.10 Use of Rechargeable Battery
Battery for OTDR is Lithium rechargeable battery.
3.5 hours for full charge
When OTDR is charged by AC/DC power adaptor, charging indicator on the front
panel will turn red and turn green after charge is complete.
When OTDR is powered on and being charged, LCD will also indicate charging
status.
75%: Showing battery power level with percentage behind, 75% indicates
- 6 -
Page 19
PROMAX OTDR User’s Manual
the current battery power is 75% of the total battery power.
: Battery unplugged or connection is poor.
: Power adaptor plugged.
OTDR battery is rechargeable Li-ion battery. If unused for a long time, please charge the
battery to 50%-70% before conservation.
Keep the battery off from fire and intense heat; do not open or short circuit the battery.
- 7 -
Page 20
PROMAX OTDR User’s Manual
2 Basic Operation
2.1 Foreword
This part introduces the basic operation on the OTDR. Please read this manual carefully for
optimal operation. Should you encounter any problems during operation, you are welcome to
contact the technical staff of our company or representatives.
2.2 Power On/Off
Power on: Press button and hold 1 seconds till the LED power indicator is on.
Power off:
Press button and hold 3 seconds till the LED power indicator is off.
Power off OTDR will completely shut down the platform and modules. When power on,
OTDR will restart.
2.3 Enter and Exit Power Saving Mode
When power is on, user can set OTDR to power saving mode and return to normal status. In
power saving mode, the LCD backlight will turn off.
Two ways to enter power saving mode:
Press
keeps on. (Note: when the button is raised, the backlight close action)
When power is on, OTDR will automatically enter power saving mode after its idle
time exceeds pre-set value.
(Power) button once to turn off LCD backlight, LED power indicator
Exit power saving mode:
Press
Or press any key on the front panel;
Or click the touch screen with stylus;
(Power) button , LCD backlight will turn on;
- 8 -
Page 21
2.4 Adjust LCD Brightness
The LCD lightness is 4-level adjustable.
PROMAX OTDR User’s Manual
Press
press the
button to toggle between different levels. When it is the minimum level and
button, it will be the maximum brightness.
2.5 Start Application
When OTDR is powered on, system will load the main program of Linux (Application
software package) and enter main interface, as shown in Fig. 2.1
Fig. 2.1 Main Interface
Launch OTDR program:
1. Select “Modules” label and then “OTDR Module” in main menu, the part will be
highlighted.
2. Then click [Start] to start program.
Launch other application program:
1. Select “Modules” label, then “VFL “, “OPM”, “OCI” or “SLS”.
2. Then click [Start] to start the program.
(Note: Double click the module label to start the application)
Application program is available only when relative functional is purchased.
- 9 -
Page 22
PROMAX OTDR User’s Manual
3 Common Settings and Special Settings
3.1 Main Setting Menu
In setting menu, user can set up many settings, including language, power saving, and load
default.
Enter main setting menu:
When power is on, press the [Setup] button to enter the setting menu, as shown below:
Fig 3.1 Main Setting Menu
3.2 Select language
Switching language:
1. Click [Setup] to enter into setting menu.
2. In language area, choose the requiring language.
3. Press “OK” to confirm modification
- 10 -
Page 23
PROMAX OTDR User’s Manual
3.3 Automatic Power Saving Setting
The feature is designed to save the battery power.
When power is on, OTDR will automatically enter power saving mode after its idle time
exceeds pre-set value.
Setting Power Saving Mode:
1. Click [Setup] to enter into setting menu.
2. In power saving area of setup menu, choose preferred option in “Turn Off LCD”.
3. Press “OK”,
Power saving mode is on by default, and LCD backlight turn off automatically in 10 minutes.
Exit setup menu and opening power saving mode.
3.4 Load Default
This function is used to set system settings to factory default. Those parameters include:
Interface style, language, power saving and OTDR features.
Load default:
1. In main interface, click [Setup].
2. In setting menu, click [Load Default], system promotes a warning message: “Restore
factory settings?”
3. Click “Yes” to continue, click “No” to cancel.
Unless it’s necessary, please do not load default because it will erase your existing settings.
4 Basic Information of OTDR Module
4.1 Principle of OTDR Module
OTDR (Optical Time Domain Reflectmeter) is a measurement instrument for identifying
- 11 -
Page 24
PROMAX OTDR User’s Manual
optic fiber transmission features. It is mainly used to measure attenuation of a whole optic
fiber chain and provide attenuation details relating to length, namely detect, locate and
measure any event in optic fiber chain (Events refer to faults caused by splicing, connectors
and bending).
made the OTDR module an indispensable tool for the testing application of optic fiber
manufacture, construction and maintenance.
The faults and heterogeneity of optic fiber itself cause Rayleigh scattering of light pulse
transmitted in optic fiber. Part of light pulse is scattered in the reverse direction, and this is
called Rayleigh backward scattering, which actually provides attenuation details relating to
length.
Information relating to distance is obtained through time information (That’s the reason why
there is “Time Domain” in the name of OTDR). Fresnel reflection occurs at the boundary
between two media of different IOR (For example, connections of faults, connectors, or optic
fiber end). This reflection is used to locate the discontinuous points on optic fiber. The
magnitude of reflection depends on the difference between IOR and the smoothness of
boundary.
Its non-destructive, one-end connection and rapid measurement features have
OTDR sends out a light pulse into the connected optic fiber, and receive reflections of events
and backward scattering power of pulse in time. Locus will be displayed on LCD. The Y-axis
is dB value of backward scattering power, and the X-axis is the distance.
4.2 Measurement Application of OTDR
OTDR displays power relating to distance of returning signals. This information can be used
to identify the main properties of an optic fiber chain, such as the optic transmission
characteristic of fiber, connector and etc.
Full auto trace analysis will realize the following measurement:
Event location (Distance),end or rupture of optic fiber chain
Attenuation coefficient of fiber
Loss of a single event (e.g. one optic tie-in), or total loss from upper end to end
Range of a single event like reflection of connectors (Or grade of reflection)
Auto measurement of cumulative loss of a single event
Events list: event type, loss, reflection and distance.
- 12 -
Page 25
PROMAX OTDR User’s Manual
4.3 Basic Definition and Classification of Events
Events refer to any abnormal points causing attenuation or sudden change of scattering power
besides the normal scattering of optic fiber, which include all kinds of losses like bending,
connections and ruptures.
Events points displayed on LCD are abnormal points that cause traces to deviate from straight
line.
Events can be classified as reflection events and non-reflection events.
4.3.1 Reflection Events
When some pulse energy is scattered, reflection events happen. When reflection event occurs,
peak shows on trace, as shown below:
Fig.4.1 Reflection Event
4.3.2 Non-reflection Events
Non-reflection events happen at certain points where there is some optic loss but no light
scattering. When non-reflection event occurs, a power decline shows on trace, see below:
- 13 -
Page 26
PROMAX OTDR User’s Manual
Fig.4.2 Non-reflection Event
4.4 Optic Fiber Link and Event Types
Optic fiber link and event type:
Event Type Description
Tab.4.1 Optic fiber link and event type
Beginning of optic fiber link
Reflection event
Non-reflection event
End of optic fiber link
End of optic fiber can be identified through scanning the first loss event that is greater than
end threshold.
- 14 -
Page 27
PROMAX OTDR User’s Manual
5 Instruction of OTDR Modules of OTDR
5.1 Main Features of OTDR Module
High dynamic range and short dead zones.
Complete sampling under low noise, realize accurate low loss locating.
Resolution is accurate to 10cm.
Multiple test model, convenient to meet the requirement of any test condition.
Make sure that the optical fiber or cable is not in use and there is no laser beam in the fiber
before testing via OTDR. Otherwise, it may result in imprecise test trace, even permanent
damage for the OTDR.
5.2 Measurement Mode of OTDR module
For convenience of customers use, OTDR offer many kinds of measurement mode. These
modes can be used with combination.
5.2.1 Auto Mode and Manual Mode
Auto mode: Calculate the length of fiber, setting Sampling parameters, getting and showing
the trace, analyze the events.
Manual Mode: Advanced Mode which user can control all OTDR parameters to test.
5.2.2 Averaging Mode and Realtime Mode
Realtime Mode: OTDR will undertake realtime measurement for the connector of exterior
fiber and refurbish the measure trace. Under realtime mode,
measurement, it will measure all along.
unless the user stops
Averaging Mode: Under Averaging mode, OTDR will average the data within the measure
time which is set by user while exceeding the set time; it will stop automatically and display
the result.
Generally, we suggest averaging mode.
- 15 -
Page 28
PROMAX OTDR User’s Manual
5.2.3 In-service Mode and Normal Mode
In-service Mode: Measure live fiber, which use 1625nm to test. This mode doesn’t affect the
normal working wavelength in the fiber under test.
Normal Mode: Use other wavelength except 1625nm (such as 1310nm, 1490nm, 1550nm
and etc.) Make sure there is no laser transmitting in the fiber under test before testing.
When using the In-service mode, the fiber must be connected to the right port of 1625nm. If it
is connected to other port; it may result in imprecise test trace, even permanent damage for the
OTDR.
Only OTDR has 1625nm wavelength, In-service mode is available.
When OTDR is on In-service mode, other wavelength (such as 1310nm,
1490nm,1550nm etc.) is not available.
Above modes can be used with combination, but some mode is not available in
certain conditions.
- 16 -
Page 29
PROMAX OTDR User’s Manual
5.3 OTDR Interface
When power on, it will show the main menu automatically
In main menu, select “OTDR module”, click [Start] button to enter OTDR user interface, as
follows:
Fig. 5.1 OTDR Main Interface
5.4 Icons Instruction in OTDR Interface
No. Icon Description
1
2
3
4
5
6
7
Zoom out trace horizontally
Start testing
Stop testing
Parameter settings
Save trace file
Open trace file
Zoom in trace horizontally
8
9
10
11
Zoom in trace vertically
Zoom out trace vertically
Full-trace view
A/B marker switch
- 17 -
Page 30
PROMAX OTDR User’s Manual
No. Icon Description
12
13
14
15
16
Not all icons are displayed in one interface, they can be seen in different functional interfaces.
Tab.5.1 Buttons and icons in OTDR main interface
Move marker or marking point left/right
Toggle between marking points
Close trace
Return to previous menu
Return to previous menu
5.5 Trace Processing
The “OTDR Trace Manager” software in MTP-Suite is for trace review and analysis on PC
after acquisition without connecting to OTDR.
Trace processing includes:
Trace editing (Single trace, multi traces)
Printing (Single trace printing, batch printing)
Trace reanalysis
Trace format conversion
Bi-directional averaging program (for single mode fibers only) is available in advanced
versions to increase loss testing accuracy by averaging the measured loss values of each event
from both directions.
5.6 Available OTDR Module
OTDR module details is in appendix, including wavelength, dynamic range, dead zone and
etc.
- 18 -
Page 31
PROMAX OTDR User’s Manual
6 Prepare to Use OTDR
6.1 Connectors Instruction
The optical ports equipped on OTDR are FC/PC (Interchangeable SC, ST and LC)
6.2 Cleaning and Connecting to Optical Fiber
To insure measurement accuracy, please clean and connect fiber properly before testing.
Connecting fiber to OTDR port is tool-free.
Please refer to “Maintenance and Calibration” for optical port and connector
cleaning.
Clean connectors and check if fiber connector type is FC/PC
Connect fiber to OTDR port.
Improperly connected fiber may cause serious loss and reflection.
Please refer to Safety Instructions of this manual before testing to ensure personal safety.
When testing with OTDR, unless connected to specific optical port, please make
sure there is no working laser in the fiber under test or it may cause incorrect result and
even permanent damage to test instrument.
Please not screw connectors too tight or it may damage fiber and optical port.
- 19 -
Page 32
PROMAX OTDR User’s Manual
7 Test with OTDR
7.1 OTDR Quick Test
1. Check the connection between fiber and OTDR optical port, make sure it’s well
connected.
2. Click [Start] icon or press
3. Click [Stop] icon or press
Fig 7.1 shows the OTDR interface after trace acquisition:
Fig. 7.1 OTDR Trace Acquisition Interface
button to start testing.
button to stop testing.
Click the [Start] button with stylus or mouse.
During testing, the averaging trace shows in the trace display area and refresh at
certain intervals, the trace after testing finishes is the final trace.
User can stop testing any time, application will show all the information when test
stops.
After test is finished or interrupted by user, system will perform automatic analysis
which takes about 5 seconds or longer before user can start a new test.
In Averaging mode, the interface will show the remaining time of the test.
In Real-time mode, test will keep going until user stops it.
- 20 -
Page 33
PROMAX OTDR User’s Manual
7.2 Trace Processing
After test and automatic analysis is complete, event types will be displayed below the trace
area; user can review all events information in events list which is on {Events} label.
After test and automatic analysis is complete, user can save traces. Please refer to the “Save
Trace”.
After test and automatic analysis is complete, user can view the trace detail and manually
analysis. Please refer to “Trace Viewing and Analysis Operation”.
After test and automatic analysis is complete, user can start a new test after trace acquisition.
Application will promote user to save unsaved trace before starting new test.
7.3 Unsaved Traces
Unsaved traces will be titled as “*U_xxxx” (xxxx stands for the current testing wavelength)
which is displayed on the left upper corner of trace display area.
7.4 Save Trace
When test is finished, user can save the trace with parameters information. The content
includes trace parameters and etc.
Procedure:
1. Click [Save] on the right lower corner of main interface and save dialog window
will pop up.
2. File format: User can choose file format as “.sor” or “.jpg”.
3. User can click
directory.
button on the top of save file dialog to choose saving
4. User can edit the name of the file to be saved; the file name consists of letters and
numbers which can be input by soft keyboard.
5. File saving: In save dialog window, click [Save] button to save file.
6. Click [Cancel] to cancel file saving.
- 21 -
Page 34
PROMAX OTDR User’s Manual
Save dialog window and options are shown below in Fig 7.2:
Fig. 7.2 Save dialog window
Title bar shows the current folder path, as shown in Fig 7.2:
“\SDMMC_DISK\Traces\”.
System will automatically enter newly created folder.
After file is saved, file name will be displayed on left upper corner of trace display
area. Please note only the first 10 characters of the file name will be displayed and
the rest are abbreviated as a “~” mark.
If the name of the file to be saved already exists, system will promote a warning
message.
For DWDM OTDR, if user select more than one wavelength, OTDR will test one
wavelength after another and automatically save all traces in AutoSave folder.
OTDR will display the trace of the last tested wavelength.
7.5 Open Saved Trace
Click [Open] button on the right lower corner in OTDR interface to open saved trace
1. In single trace display mode, when opening a new trace, the currently-displayed
trace will be closed.
- 22 -
Page 35
PROMAX OTDR User’s Manual
2. In Multi-trace display mode, user can open and display up to four traces at the same
time.
Enable/disable Multi-trace display mode in OTDR Setup by checking/unchecking
“Multi-trace” in Display Option.
“.jpg” format trace can be also loaded to PC for viewing.
7.6 Trace Viewing and Analysis Operation
User can zoom in/out trace, utilizing markers and marking points for trace characterization
including loss, attenuation, reflection and etc. All of their operation can be realized by stylus.
Zoom in/out trace:
In trace display area, draw selection frame from left upper corner to right lower
corner to zoom in trace.
Draw selection frame from right lower corner to left upper corner to zoom out trace.
Show A/B marker:
Click {Markers} label in OTDR main interface and markers or marker labels will
show in trace display area.
Move marker quickly:
Select and hold the marker, drag it left or right to move quickly.
Or click [
Switch A/B markers:
] [ ] button on {Markers} label to move active marker left or right.
Click
Or click the marker to select in trace display area with stylus.
button to switch A/B markers on {Markers} label.
When holding and moving marker with stylus, please apply adequate force or the
- 23 -
Page 36
PROMAX OTDR User’s Manual
A
operation may not be successful. Please try several times to get used to it.
Marker operation and re-analysis are not applicable to ‘.jpg“ format trace.
For more information, please refer to “Trace Analysis and Event Operation”.
7.7 Information and Function Windows
Information and function windows are located at the bottom of OTDR interface.
Information includes: Event list, measurement parameters, markers information (A/B
marker, marking points and etc.), trace parameters and trace information.
Information and function windows description:
Label Function
Meas. Para.
Events
Markers
Trace Para.
Trace Info.
Note: For detail information, please refer to “Trace Analysis and Event Operation”.
Measurement parameters:
Mode, Wavelength, Range, Pulse Width, Averaging Time and etc.
dd event, modify event, delete event and analyze event.
A/B switch, move, lock, loss and reflection analysis.
Trace testing parameters
Cable and fiber information viewing and editing.
Tab. 7.1 Information and Function Windows Description
7.7.1 Switch Information and Function Windows
Click the labels of information and function windows to switch.
7.7.2 Events info reference
Click {Events} information window changes into events information.
Click [
] and [ ] in scroll bars to look over events information.
7.7.3 Reanalyze
When not satisfied with threshold, change threshold, then reanalyze the trace by this function
to get satisfactory trace.
Reanalyze the trace:
1. If possible, look over or reset threshold.
2. In {Events}, click [Analyze], system will reanalyze the trace.
- 24 -
Page 37
PROMAX OTDR User’s Manual
3. When the analysis finished, events list will show the new results.
Reanalyzing trace may cause added events are deleted, events revised are resumed,
and events deleted come back etc.
For more operation on events, please refer to “Trace Analysis and Event
Operation”.
7.8 Upload Trace to PC
On computer, user can manage the trace file flexibly.
Copy or move the trace to computer:
1. User can copy the saved trace to computer via USB by PC software
2. Or user can copy and move the saved trace to computer by mobile hard disk drive/
USB flash disk
For more operation, please refer to “Manage files and data”
7.9 Get help on OTDR
Click [Help] or “?” (HELP) to get detailed help, click “ ”(BACK) to exit.
- 25 -
Page 38
PROMAX OTDR User’s Manual
8 Testing Optical Fiber in Auto Mode
8.1 Instruction of Auto Testing Mode
When don’t know the optical fiber length, can simply use the auto testing function to get the
trace and analyze.
After the auto mode started, OTDR will automatically estimate the optical fiber length, set
sampling parameter, get trace and display the event list and etc.
Under Auto Mode, user can set follow parameters directly.
The wavelength be used for testing( at least one wavelength)
Testing time span
After Auto mode started, according to the situation of optical fiber link which connecting the
equipment, application program will estimate the optimum setting automatically and it will
need around 5s. If the testing was cut off, any date won’t be displayed.
Except the specific light port (light port used for online testing), do not connect the optical
fiber which load signal to the OTDR port, any external signal over -30dBm will affect the
OTDR sampling and cause permanent damage to the OTDR.
8.2 The procedures of auto testing mode
Test and get trace in Auto mode:
1. Connect the optical fiber to the right OTDR light port.
2. Set parameter: set the “Range” to “ AUTO”.
3. Set testing time span.
4. Start testing: Use stylus click [Start] or press down the “
front panel.
5. After test, can save the trace, check the trace, re-analyze the trace and etc. As to the
” (Start/Stop) on
- 26 -
Page 39
PROMAX OTDR User’s Manual
detailed operation way, please refer to relative paragraph previous.
When testing automatically, Range is “AUTO”.
When setting the parameter, if the optical fiber parameter is not clear, can directly
use the default value, but it may cause a bigger testing error.
- 27 -
Page 40
PROMAX OTDR User’s Manual
9 Testing the optical fiber in Manual mode
Manual mode can set various test parameters more precisely.
The premise is know the general situation of optical fiber and then set parameters precisely
and gets more ideal test result.
Correct parameters setting is the essential condition of optical fiber accurate measurement. So,
when test manually, must set parameters according to requirements.
9.1 Common using parameters for OTDR testing
Following testing parameters displaying on {Meas. Para.} option card on the OTDR surface,
users can set conveniently.
Parameter Definition
Range Distance range of the testing
Pulse Width The width of laser pulse launched to optical fiber by OTDR
Averaging Time Testing time, choose the proper testing time
Wavelength Laser wavelength, testing laser wavelength selecting
Mode Testing mode, testing mode selecting
Tab. 9.1 OTDR common use parameters sheet
9.2 OTDR test parameters Configuration
Testing parameters in this section should be set in “OTDR Setting“, click [Setup] on the
OTDR surface to enter.
These testing parameters include: Optical fiber general setting, analysis parameters setting
and etc.
Parameter Definition
IOR of optic fiber which affects the transmission speed of
IOR
Scatter Coefficient
Non Reflection Threshold
laser. Need to set separately according to working wavelength
relatively
Also be called back scatter, which affects backward scatter
power of laser in fiber.
Also be called splice loss detecting threshold. Non reflection
event with insertion loss greater than this threshold will be
displayed on trace.
- 28 -
Page 41
Parameter Definition
PROMAX OTDR User’s Manual
Reflection Threshold
End Threshold
Default
Also called reflectivity. Reflection events with insertion loss
greater than this threshold will be displayed on trace.
Also be called optical fiber end detecting threshold. The first
event with insertion loss greater than this threshold is
identified as the end of fiber, and all following events will be
ignored on trace.
Revert to the values when leave factory
Tab. 9.2 OTDR test parameters setting sheet
9.3 OTDR display and other Configuration
It is including setting of save method, testing display area and etc. Parameters setting in this
part won’t affect the testing result.
Setting Content
Display grid line
Support multi traces
If be selected, the grid line will be displayed when trace be
displayed, otherwise not be displayed.
If be selected, then support multi trace testing and display,
otherwise only test single trace and display.
If be selected, there will be a trace navigator window on the
upper right on the trace window, it’s easier to check the
navigator window
Display the zoom
toolbar
length unit
contracted drawing of whole trace. Meanwhile, can check or
move magnify the windows position.
If not be selected, can’t see the navigator window and system
default select “navigator window”.
If be selected, there will be a zoom toolbar on the right side of the
trace window; if not be selected, there will be no zoom toolbar
but a bigger trace display zone.
Set the length unit displayed.
Tab. 9.3 OTDR display or other parameters setting
9.4 Real time and average test mode
Under sampling and accumulating condition, test mode has real time and average mode.
1. Under real time mode, instrument test the external optical fiber connection in real
time and refresh display testing trace in real time. When instrument working under
real time mode, user click [Sto p] or press “
”(Start/Stop) on front panel, the
test will be stopped or the test will proceeding all the time.
2. Under average mode, instrument accumulate and average the testing data according
to the time user choose, test time is equal or greater than test time user set, display the
- 29 -
Page 42
PROMAX OTDR User’s Manual
result after the testing finished.
Under general condition, user chooses average mode will be ok.
Operating instructions
Real time mode and average mode are controlled by [Real time/Average] in {test
setting}<test mode>.
When the button highlight display “Average”, it means average mode; when button
sag and display “Real time”, it means real time mode.
When click the button, it will change between average and real time.
9.5 Range Configuration
Under general condition, the Range setting is to select relative scope according to the optical
fiber real length; it will guarantee the test accuracy.
Range options: Auto,1.3km, 2.5km, 5km, 10km, 20km, 40km, 80km，160km, 240km etc.
Operation:
Click on the right range settings.
“Auto” is Auto test mode of OTDR; select this function, OTDR will select a proper
test range intelligently and the proper pulse width to test. The whole process no need user
participate.
Default value is “Auto”.
9.6 Pulse Width Configuration
Pulse width selection affects the trace dynamic and resolution, select the smaller width to test
can get a higher distance resolution and smaller dead zone, but the dynamic certainly damaged;
oppositely, wider pulse width can get higher dynamic, test longer optical fiber, but it will
affect the resolution and dead zone, the user must select between dynamic and dead zone.
Operation:
Click the pulse width number in pulse width parameter zone.
Default value: Auto
When the distance range is “Auto”, the pulse width will be “Auto”, no need the
- 30 -
Page 43
PROMAX OTDR User’s Manual
user to set.
There will be different pulse width options according to different distance range.
9.7 Averaging Time Configuration
Test times affects the test trace SNR, the longer test time, the higher SNR and get a bigger
dynamic; so, when test long distance optical fiber and check far end event, need to select
longer test time.
Operation:
Click the time span number in time span zone.
Averaging time: Auto, Quick, 15s, 30s, 45s, 60s, 90s, 120s, 180s and etc.
The default value is 60s
9.8 Laser Wavelength Configuration
Select certain single wavelength or multi select up to the entire wavelength.
The effective wavelength will be different according to modules purchased.
9.9 IOR Setting
IOR is a key factor to affect the speed of laser transmission in optic fiber; and in this case, IOR
configuration has direct impact on the accuracy of measurement. Generally speaking, the IOR
parameter is provided by optic fiber manufacturer, and it can be set to the accuracy of four
digits after decimal point between 1.0000 and 1.9999.
9.10 Scatter Coefficient (Back Scatter) Setting
Scatter coefficient determines the value of backward scatter power. The configuration affects
the calculation of reflection value.
Configuration zone is -10 to -70dB
- 31 -
Page 44
PROMAX OTDR User’s Manual
9.11 Non-reflection Threshold (Splice Loss Detecting
Threshold) Setting
This configuration has direct impact on the listing of insertion loss events. Only insertion loss
event which is greater than this threshold will be listed.
The default value is 0.20dB.
9.12 Reflection Threshold (Reflection Detecting
Threshold) Setting
This configuration has direct impact on reflection events listing. Only event reflection which
is greater than this threshold will be listed. The value configuration zone is -10dB to -65dB.
The default value is -52.00dB
9.13 End Threshold (Optical Fiber End Detecting
Threshold) Setting
This threshold is the end threshold of optic fiber. If the end threshold equals 3.0dB, then the
first event with insertion loss greater than 3dB will be considered as the end of the optic fiber.
The value configuration zone is 0.0dB to 20.0dB.
The default value is 3.00dB.
9.14 Load Default
In OTDR Setup surface, there are 3 “default” button, corresponding to IOR, scatter coefficient
(back scatter), non-reflection threshold (splice loss detecting threshold), reflection threshold
(reflection detecting threshold) and end threshold (optical fiber end detecting threshold).
- 32 -
Page 45
PROMAX OTDR User’s Manual
10 Use OTDR Test FTTx-PON Network Optical
Fiber Link
For FTTx-PON network optical fiber link, it’s different from normal optical fiber link; and
there is branching unit in link. So, it needs to know and notes follow items when use this
instrument to test FTTx-PON network.
10.1 Use PON Optimized OTDR Instrument
Some models optimized specific to FTTx-PON network optical fiber link, can get fairly ideal
result.
In order to get ideal result, it needs to correctly set distance range, end threshold (optical fiber
end detecting threshold), reflection threshold (reflection detecting threshold) and etc.
10.2 Select the Proper Distance Range
As there is branching unit in FTTx-PON network optical fiber link, there will be a big
attenuation event of tens dB, auto test may get a wrong distance. Suggest manually select the
parameters like proper distance range, pulse width and etc according to the prescient optical
fiber link length.
10.3 End Threshold (Optical Fiber End Detecting
Threshold)
As there is branching unit in FTTx-PON network optical fiber link, there will be a big
attenuation event of tens dB, if the end threshold configuration is not proper, end event may be
analyzed inaccurate.
For normal optical fiber link, end threshold configuration can be 3.0dB, as to PON network
optical fiber link with branching unit, it need to set the end threshold to a proper value and
then OTDR can locate the end event correctly. Please refer to follow end threshold
configuration sheet.
- 33 -
Page 46
PROMAX OTDR User’s Manual
10.4 Test parameter recommendation value
Splitter type
1:8 ≥9dB 12dB
1:16 ≥12dB 15dB
1:32 ≥15dB 18dB
1:64 ≥18dB 21dB
Tab. 10.1 Recommended parameter values for PON network optical fiber link
Loss reference
value
End threshold
configuration reference
value
Recommend test
100ns，300ns
100ns，300ns
pulse width
300ns，1us
300ns，1us
- 34 -
Page 47
PROMAX OTDR User’s Manual
11 Trace Analysis and Event Operation
11.1 Open Trace File
Open trace file:
1. Press down [Open] in button column in OTDR surface.
2. Select the file need to be opened in the files dialog box.
If necessary, change the file position to search saved files.
If necessary, click the scrollbar on the right side, check the listed files.
3. Click [Open] and the file opened.
If click [Cancel], the file can’t be opened and quit dialog box.
4. The file name displayed on the surface top left.
Fig. 11.1 Trace file opened
navigator window
zoom tool
grid line
Check or open “.jpg” format trace file, please use the “File Explorer” in {Program}.
Can’t open bidirectional trace file on instrument. If need to, use the bidirectional
analysis program provided by MTP-Suite which installed on computer.
- 35 -
Page 48
PROMAX OTDR User’s Manual
11.2 Simultaneous Display Multi Traces
In order to let user compare trace files, OTDR support opening and displaying multi traces.
When open multi trace, current trace is red, the icon in front of the file name is red, other icons
are grey.
Open single trace or multi trace, user need to set.
Open multi traces setting:
In OTDR [Setup], in the options of test, select the “Support multi traces“.
System can open 4 traces at the same time. When need to open other traces, please close some
opened traces.
11.3 Close Trace File
Close trace file:
Click [Close trace] button on the upper right corner of the interface to close the trace
file.
Using tip: when under single trace mode (none multi traces mode), open new trace will close
the opened trace automatically, this will reduce the operating steps and make it easier to use.
11.4 Trace Display and Operating Instruction
After trace opened, application program will display the trace and analysis result in the trace
window. The events on the trace will be marked by small icons, these events marked and
display below the trace.
X axis shows the relative distance from the testing point.
- 36 -
Page 49
PROMAX OTDR User’s Manual
The number on the Y axis shows the reflection power value (relative power) and its range.
After get the trace, the trace display parameters can be revised (like grid line and zoom
window screen). Please refer to the paragraphs of “trace display parameters configuration”
The content of trace window changes according to options changing. Some items of trace can
be saw all the time, but other items displayed when select to display them or switch the
options from one to another.
Event Options:
In {Event} options, there are various parameters of events listing, including event type,
number, position, insert loss, reflection loss, attenuation and accumulation and etc.
When switch to {Event}, application program will display a marker on the tracing graph.
When some event in event list is selected, the marker will move to that event position and
indicate.
When open multi trace, event options only display current trace.
Markers Options:
When switch to {Markers} options, application program display two Markers A and B, or
include some gauge points. Particular cases depend on the function button in the button area.
Move these Markers along the trace to calculate loss, attenuation, reflection and etc.
Can use the buttons in Markers area to relocate all Markers and also can drag them in trace
display window.
11.5 Switch And Move Markers
There are many ways can switch and move Markers, users can choose one from them or use
them in combination way to increase efficiency.
In trace displaying area, use stylus or mouse select A/B Markers or label above
Markers, then can press and drag A/B move in the trace service area to the target
position.
- 37 -
Page 50
PROMAX OTDR User’s Manual
In the buttons area on the bottom of surface, click [ ] to switch between A and
B.
After select Markers, continuously click [
After select marked point, click [
Markers.
For easier using, the position of Markers will be remembered, when open OTDR
and trace next time, the Markers will maintain the position operated last time.
There is marked point when proceed the loss or reflection analysis.
] or [ ] to move Markers.
], [ ], towards left or right to move the
11.6 Switch And Move the Marked Point
When proceed loss or reflection analysis, there will be marked point used for auxiliary test
near the selected Markers.
There are various ways to switch, move the marked point, user can use one of them or use the
combination to increase efficiency.
Use stylus or mouse select marked point in the trace displaying area, then can press
on and drag the marked point move in the trace service area to the target position.
In the buttons area on the interface, click [
marked points under current Markers.
After select the point, continuously click [
The points under each Marker in the process of movement:
] to switch circulated between the
] or [ ] can move the point.
Marked points on the left side can’t cross the Markers to the right side
Marked points on the right side can’t cross the Markers to the left side
- 38 -
Page 51
PROMAX OTDR User’s Manual
11.7 Fast Move the Markers Outside the Window
When magnify the trace, Markers may be positioned outside of the window.
When the Markers on the left side outside the window, there will be a sign on the left margin
of the window: A← or B←
When the Markers on the right side outside the window, there will be a sign on the right
margin of the window: →A or →B
Drag the signs above mentioned can move the Markers in to current window.
11.8 Lock AB Markers
In the surface of {Markers}, press down [|A-B|], A and B Markers will be locked.
After AB Markers locked, when moving one Marker, the other one will move with it and the
distance maintains the same.
For some special tests, this function may be more convenient.
When one Markers move to the trace boundary, the distance between AB won’t maintain. But
it will revert when it’s not on the trace boundary.
11.9 Zoom the Trace
In order to check the event or detail in the trace, it needs to zoom the trace.
System provide two ways to zoom the trace for easier use for the user:
1. Zoom the trace by cross frame, operation is smooth and fast
2. Use the zoom toolbar on the right side, operation is easier and directly perceived
After magnify operation, Markers may disappear from the current trace window
Method 2, it needs to open the option of “display zoom toolbar”
- 39 -
Page 52
PROMAX OTDR User’s Manual
11.10 Cross Frame to Zoom the Trace
In the trace display area, magnify the traces by cross frame from upper left to lower right.
In the trace display area, contract the trace from upper right to lower left.
Repeat above operation mentioned to magnify or contract the trace continuously.
Do not cross to the outside of the trace display area, otherwise the operation won’t
have a respond.
The trace can’t be magnify unlimited, it can’t be magnified after a certain degree.
The trace can’t be contracted more after contracted to 1:1 size.
Application program will maintain the zoom situation for further test and check of
similar trace.
11.11 Use Zoom Toolbar to Zoom the Trace
On the right side of trace window, there is a zoom toolbar vertical ranked. Can use the zoom
toolbar to zoom the trace to check the event detail on the trace.
Press the magnify button for the first time, trace window will display the trace in the
middle.
After the trace magnified, in order to move trace window, click the place outside the
magnified area, trace window will move around this place. Also can use the
direction key on the front panel to move the trace.
11.11.1 Revert the Whole Trace View
Click [ ] to revert the whole trace view.
11.11.2 Zoom In Trace Horizontally
Click [ ] to zoom in the trace horizontally.
- 40 -
Page 53
PROMAX OTDR User’s Manual
11.11.3 Zoom Out Trace Horizontally
This function is to zoom out trace horizontally. Click to zoom out trace.
11.11.4 Zoom In Trace Vertically
Click [ ] to Zoom in trace vertically.
11.11.5 Zoom out Trace Vertically
Click [ ] to Zoom out trace vertically.
11.12 Remember the Zoom Status Automatically
In the process of testing or opening trace, the magnified proportion and position will be
remembered temporary. When test under the same distance once again, the magnified status
of the window remain the same for continuous test.
When user turns off OTDR, the zoom info won’t be reserved. Turn on OTDR again;
trace window will revert to whole trace status.
When user changes wavelength, pulse width and time, as long as the distance is not
changed, auto memory of zoom status will be effective.
When user changes the distance, trace window will revert to whole trace status.
11.13 Move the Magnified Trace Window
After the trace magnified, the trace window will only display part of the trace. There are two
ways to move the trace window:
1. Use stylus to operate in navigation window.
2. Use 4 direction keys on the front panel to operate.
- 41 -
Page 54
PROMAX OTDR User’s Manual
To move magnified trace window in the navigation window
In the navigation window, can see the position of current window on the whole magnified
trace. Click some place outside the magnified area in the navigation window, trace window
will move to the place correspondingly.
In navigation window, if click the shadow region (display scope of magnified window), the
operation invalid.
Use direction keys to move trace window
As to the magnified trace, press down the direction keys on the front panel, the trace window
will move correspondingly.
Click “ ” , the trace window move upward
Click“
Click “
Click “
”, the trace window move downward
”, the trace window move towards the left
, the trace window move towards the right.
When display the whole trace, the trace window can’t be moved.
- 42 -
Page 55
PROMAX OTDR User’s Manual
11.14 Operation of Event Options
Event sheet lists all the events tested on the trace. Event can be defined as point where optical
transmission occurred change. Events are constituted loss which caused by transmission,
splice, connector or crack. If event was not in the certain threshold, it was defect event.
Fig. 11.2 Events options
As to every event in the even sheet, display follows info:
Type: Different indicator used for different event type instruction. As to the detailed
indicator instruction, please refer to the paragraphs previous.
ID: Event number(one continuous number designated by OTDR application
program).
Location: Distance between OTDR and event or event and starting point of optical
fiber link.
Insert Loss: The loss of every event by unit of dB( calculated by application
program).
Reflection value: Calculated value for each event.
Attenuation: The attenuation for each optical fiber length(loss/distance).
Accumulation: The accumulating loss from the link starting point to the end of the
link.
Accumulating loss calculates the events listed in the event sheet and doesn’t calculate the
hidden events. About the more accurate link loss, please refer to the loss result displayed in
{Markers}.
- 43 -
Page 56
PROMAX OTDR User’s Manual
11.14.1 Display the Event on the Trace and Locate Event In Even
Sheet
Through rolling the event sheet, user can check the relative info about all events tested on the
trace. When an event selected, there will be Markers appear on the trace which above the
event.
When the trace under magnification status, event and its Markers may not in the
current window.
It is better to locate event under whole trace status and then magnify to see the
detail.
11.14.2 Add Event
User can insert event into event sheet at any time manually. For example, when there is a
splice point on some given position, but as it hidden in the noise or the splice loss lower than
the minimum value of non-reflection detecting threshold, then the analysis didn’t test that
point, this operation will be quite useful. User can manually add this event to the event sheet.
This will add a number on the insertion position but won’t modify the trace.
Important Hint: When reanalyze the trace; the inserted event will be removed.
- 44 -
Page 57
PROMAX OTDR User’s Manual
Add event:
1. Press[Add] on {Event} label;
Fig. 11.3 Add event
2. Fill in the event information in the add event dialog window.
Fig. 11.4 Add Event Dialog Window
3. Press [Enter] to save and back to main window after edit finished, the event will
appear in the event list. If pressed [Cancel], it will quit without save.
There are reflection event and non-reflection event for inserted event.
11.14.3 Delete event
Except following events, almost all of the events can be deleted from event sheet.
Analysis finished
Starting point of the link
End point of the link
- 45 -
Page 58
PROMAX OTDR User’s Manual
Important hint: The only way to recover the deleted items is to reanalyze the trace, like
analyze new traces. Please refer to the part “analyze or reanalyze trace”.
Delete event
1. Select the event need to be deleted
2. Click the {Delete} on the right side
3. Press “Yes” when the program hint or press “No” don’t delete event and go back to
main interface.
Fig. 11.5 Delete Event
11.15 Analysis Detecting Threshold Configuration
In order to optimize the event detection, user can set follow analysis detecting threshold:
Change non-reflection threshold (splice loss threshold): It can display or hide small
non reflection event.
Change the reflection threshold (Reflection threshold): It can hide the fake
reflection event caused by noise, turn the harmless reflection event to loss event or
check the event which may cause damage to network and other optical fiber
equipment.
Change the finish threshold (optical fiber end threshold): It can analyze the
important loss event (like breakpoint) and stop the event analysis after that event.
“Auto” mode and “Manual” mode can use these thresholds.
- 46 -
Page 59
PROMAX OTDR User’s Manual
Set analysis detecting threshold
1. Press [Setup] in the button area which in the lower right area to enter setting
surface.
2. Set these parameters in the parameters analysis part. In the relative edit frame, enter
value needed or press [Default] revert the default value.
Fig. 11.6 Parameters analysis edit frame
3. Press [OK] to save setting and then quit setting surface; If press [Close], it will quit
without setting saved.
Analysis detecting threshold just set will used for trace tested after the set and reanalysis of the
trace.
11.16 Reanalyze the Trace
User can reanalyze the trace. Reanalyze the trace has follow effects:
Create new event sheet for trace.
Reanalyze the trace got by the software of latest version.
Re-found the original event sheet (if the event sheet has been modified).
Application program will analyze the newest tested trace. User can check the analytic result in
the event options.
- 47 -
Page 60
PROMAX OTDR User’s Manual
Reanalyze the trace:
1. In the [Event] options, press [Analysis], it will reanalyze the whole trace;
2. After analysis finished, the new analytic result will be listed in the event sheet.
If user wished to find some new events or filter some events he didn’t pay attention,
please change the analysis detecting threshold first and then to proceed the analysis.
Effected by instrument features or detecting threshold, the analytic result may be
inconsistent to the result user preconceive.
11.17 Analyze the Optical Fiber in Specific Optical Fiber
Link
As to the PON optical fiber link which has splitter, it need set the proper finish threshold
(optical fiber end detecting threshold) to analyze the end event which through the splitter.
Please refer to the sheet “Recommend parameters value of PON network optical fiber link”.
Please change the analysis detecting threshold first and then to analyze. This will analyze
some events after splitter correctly.
11.18 Set Trace Display Parameter
User can modify following trace display options before or after the test and trace opened:
Grid line: It can display or hide the grid line displayed on the Fig background; it will
display the grid line under default status.
Navigation window: It can display or hide the window which used for whole trace
survey on the upper right position of the trace window.
Length unit: it can select the length unit will be used in the whole application
program.
Before the trace opened, it can change following trace display options:
Multi traces: Control whether to open multi traces at the same time
- 48 -
Page 61
PROMAX OTDR User’s Manual
Zoom toolbar: It can display or hide the zoom icon area which on the right side; will
get maximized trace display area after hide the zoom toolbar. The zoom toolbar is
displayed under default status.
For the first time entering OTDR functions surface, the help information for simple operation
displayed in the trace area and can’t see the navigation window and grid line. Only after test or
after the trace opened can see the grid line and navigation window.
To set the trace display parameters:
1. To press [Setup] in the button bar which on the lower right of the OTDR menu.
2. In the options of test display area, select and modify the display options.
3. Press [Application] and make change become effective, then quit the setting dialog
box; or press [Cancel] to quit the setting dialog box without setting save.
Fig. 11.7 Options of test display area
To hide or display the zoom toolbar must turn off all the trace opened. Otherwise the setting
won’t go into effect.
- 49 -
Page 62
PROMAX OTDR User’s Manual
11.19 Set the Length Unit
In the OTDR parameters setting dialog box, select the length unit in the test display area
options. The unit can be meter, feet or mile.
The default length unit is meter.
Some certain values such as pulse width, wavelength and etc won’t change along
with the distance. Pulse indicated by second, wavelength indicated by nm.
When select m as length unit, system will display km in some place.
When select ft as length unit, system will display kft in some place.
When select mi as length unit, system will display kmi in some place.
11.20 Display or Switch the Trace
In the OTDR test application program, when opened multi trace, there are two ways to switch
the displayed trace:
1. To hide or display the trace: click the file name label on the upper left.
2. Or click the [ close trace] on the surface upper right to close current trace.
11.21 Check Current Trace Parameters
Check current trace information on {Tra ce I nfo.} label.
Fig. 11.8 Check the trace parameters
The content displayed is shown below:
File name, save date and time, test wavelength, test pulse width, test time, test distance, total
loss, average loss.
File name: The name of current trace.
- 50 -
Page 63
PROMAX OTDR User’s Manual
Date: Date and time of test.
Wavelength: Laser wavelength used for test.
Pulse width: Laser pulse width used for sampling.
Averaging time: Continuous sampling time.
Range: Distance used for test.
Link length: The length of optical fiber link calculated after test.
Link loss: The total loss of the link starting point to the link end.
Link attenuation: Average loss of the total link, indicated as function of distance.
Event quantity: Total events number got from current trace analysis which is
according to test parameters
The content displayed on the right:
IOR, back scatter, splice threshold, reflection threshold, end detecting threshold.
IOR: Indicate the trace IOR (also called group coefficient). If modify this parameter,
it will adjust the trace distance test.
Back scatter: Rayleigh back scatter parameter setting of the displayed trace.
Non-reflection threshold: Check the current setting of small non reflection event
during the trace analyzing.
Reflection threshold: Check the current setting of small reflection event during the
trace analyzing.
End threshold: Check the current setting of the loss of important events(will affect
the transmission performance during the trace analyzing)
Trace parameters options only displays the selected trace even multi traces are opened. Please
switch to the trace if you want to display the parameters of other traces. The trace selected is in
red color.
- 51 -
Page 64
PROMAX OTDR User’s Manual
12 Manual Trace Analysis
User can use markers and zoom tools to measure splice loss, attenuation and reflection, or use
markers to locate event position and relative power level.
12.1 Use Markers
Click {Markers} label in OTDR main interface to activate markers.
12.2 Event Location and Loss Information
OTDR application automatically calculates event location and display the location in events
list. User can manually check event location and distance between events. Loss information
can be also displayed. The X-axis represents distance and Y-axis represents relative power.
Fig. 12.1 Event location and loss information
To acquire event location and loss information
1. Click {Markers} label in OTDR main interface.
2. Place marker A or B to at the beginning of the event, the marker label will show
distance.
3. Fig 12.1 shows the insertion loss of current marker and A-B loss.
12.3 Measure Insertion Loss (2-point and 5-point
method)
Insertion loss (unit: dB) is calculated by measuring the signal level of Rayleigh backscatter
(RBS) and the magnitude of reduction. Insertion loss can be created by reflection and
non-reflection events.
- 52 -
Page 65
PROMAX OTDR User’s Manual
System calculates real timely the loss between Marker A and B, and also calculates the
insertion loss at Marker A or B. Insertion loss is calculated in 5-point method.
2-point method (A-B Loss):
Insertion loss is calculated as shown in Fig. 12.2.
Fig. 12.2 2-point Loss
2-point method is suitable for measuring splice loss but not applicable to measuring reflection
events.
”A-B Loss” is for quick loss measurement of certain segment of the fiber marked
between Marker A and B.
“”A-B Loss” is not applicable to measuring reflection events.
5-point method to measure event loss:
Event loss is measured by 5-point method. When the [Loss] button in “Markers” Label is not
pressed, the marking points used by 5-point method will not display; however, the system use
5-point method by default.
When apply 5-point method manually, the marker and its related 4 marking points divide the
trace around the event into 2 areas: the left to the active marker and the right to the marker, the
2 marking points on the left and the 2 on the right both form a straight line, move the two lines
close to the event center and the power difference between the two lines is the event insertion
loss.
It also applies to the measurement of point A’s or B’s insertion loss.
Fig.12.3 5-point method
When [Loss] button is pressed, OTDR will show the marking points to measure the event loss.
When Marker A is selected, the screen will display the 4 marking points related to Marker A.
- 53 -
Page 66
PROMAX OTDR User’s Manual
When Marker B is selected, the screen will display the 4 marking points related to Marker B.
The Markers and marking points can move separately.
The procedure to apply 5-point method:
1. In the main interface of OTDR OTDR module, click “Markers” label;
2. Press [Loss] button, Marker A, Marker B and their related marking points will be
displayed on the trace;
3. Zoom the trace to view the event clearly, move Marker A to the end of linear part of
the trace before the event;
4. Move the first marking point to the beginning of the linear part of the trace before
the event;
5. Move the second marking point to the end of the linear part of the trace before the
event;
6. Move the third marking point to the beginning of the linear part of the trace after
the event;
7. Move the fourth marking point to the end of the linear part of the trace after the
event;
Fig. 12.4 Measure insertion loss in 5-point method
- 54 -
Page 67
PROMAX OTDR User’s Manual
The marking points on the left of the active marker cannot be moved the right and
vice versa.
The loss showed in the Event List is measured by 5-point method.
12.4 Measure Attenuation (2-point and LSA method)
2-point method measures the attenuation between Marker A and B calculated by all the loss
over the distance between Marker A and B (Unit: dB/Km). Use only these two points to
calculate and the average value does not exist.
LSA (least-squares approximation) method uses linear regressions that is applied to the
backscatter before and after an event (Between Marker A and B) to estimate the attenuation in
the backscatter resulting from the event’s loss. LSA method only measures the amplitude
(decibel) change between the crossing points of the trace with Marker A and B.
Compared to 2-point method, LSA method is more accurate because it is less sensitive to trace
noise and suitable for measuring splice attenuation. However, LSA method should not be
applied to measure attenuation when there are reflection events between Marker A and B.
Measure attenuation:
1. Click {Markers} label in OTDR main interface to show Marker A and B.
2. Place Marker A and B at different points on trace.
3. Zoom in the trace to adjust marker position when necessary.
4. Check 2Pt. Atten. (2-point attenuation) and LSA Atten. (LSA attenuation) values,
as shown in Fig. 12.5.
Fig. 12.5 View attenuation
- 55 -
Page 68
PROMAX OTDR User’s Manual
There should not be any event between Marker A and B when measuring attenuation with
2-point method.
12.5 Measure Reflectance
Reflectance is the ratio of reflected power (Pr) to incident power (Pi) of an event (such as a
connector).
Reflectance = 10 log (Pr/Pi).
1. Click {Markers} label in OTDR main interface to show Marker A and B.
2. Click [Refl.] button to show marking points.
3. Before measurement, zoom in the trace and place Marker A to the end of linear part
of the trace before the event.
4. Move the first marking point to the beginning of the linear part of the trace before
the event and Marker A.
5. Move the second marking point to the end of the linear part of the trace before the
event and Marker A.
6. Place the marking point behind Marker A to the peak of the reflection event to be
measured.
7. View the reflectance.
Above process is applicable to measuring all reflection events’ reflectance even they are very
close to each other.
- 56 -
Page 69
PROMAX OTDR User’s Manual
Fig 12.6 Measure reflectance
For non-reflection events, reflectance will show as “-----”。
- 57 -
Page 70
PROMAX OTDR User’s Manual
13 Trace File Management
User can save, open, rename and delete trace file after acquisition.
User can save and open trace file in OTDR main interface.
User can rename, copy, move and delete file in File Explorer.
13.1 Save Trace in Different Formats
In OTDR main interface, user can choose trace saving format as Bellcore (.sor) or JPEG
(.jpg).
If saving trace as other formats, user should copy the trace file to the PC and use the OTDR
Trace Manager of MTP-Suite, which has installed on the PC, to select other formats.
13.2 Copy, Move, Rename and Delete Trace
There are two ways to copy, move, rename and delete trace.
Method one: Though File Explorer:
A. In OTDR main interface, click {Program} label and click [File Explorer] icon as shown
in Fig 13.1:
Fig 13.1 File explorer
B. Click [Start] button or press
Explorer.
C. Copy, move, rename and delete trace.
D. After operation, click [
] button to return to main interface.
(Start/Stop) button on front panel to enter File
- 58 -
Page 71
PROMAX OTDR User’s Manual
User can move, rename and delete files saved in SD card but the disk itself cannot
be moved, renamed or deleted.
For more information, please refer to the Help file on OTDR.
Method two: User can connect OTDR to PC, OTDR will be recognized as a mobile device.
User can copy, move, rename and delete files in PC’s Windows System.
13.3 Check Disk Space
User can check disk space utilization status (used space and free space) in File Explorer:
1. Enter About in OTDR main interface.
2. Select Platform..
3. “SD Card” space utilization status is shown below:
Fig. 13.2 Check disk space utilization
4. Click “Close” to exit disk properties.
It’s suggested to check disk space utilization status from time to time and transfer or back up
files to avoid insufficient disk space when OTDR is in use.
- 59 -
Page 72
PROMAX OTDR User’s Manual
14 Print OTDR Report
User can manage saved trace files in OTDR and print report.
For reference and report printing, it is necessary to manage and update trace information.
14.1 Trace Information
After trace acquisition, user can add or update tested fiber information which includes: Cable
ID, Fiber ID, Fiber Type, Start Location, End Location and Operator.
Adding or updating the information can be completed in {Trace Info.}.
14.2 Check and Edit Trace Information
User can check and edit trace information in {Trace Info.} function window.
When newly tested trace is saved, the trace is saved with above information.
User can also edit saved trace information and save the trace with updated information.
After editing trace information of a saved trace, the updated trace file name will
show a star sign (“*”) to indicate the change. If user closes the editing window
without saving, system will promote user to save.
The update to trace information is only effective to current active trace in
Multi-trace display mode.
Editing trace information does not affect measurement parameters and result.
Edit and save trace information:
1. Click {Trace Info.} label in OTDR main interface.
- 60 -
Page 73
PROMAX OTDR User’s Manual
Fig. 14.1 Trace information and editing
2. Input trace information in the pop-up window.
3. Click [Save] button in OTDR main interface to save the trace again and the
updated information will be saved with the trace file.
4. Can use the same steps to view or change the trace information at any time.
Edited and saved trace can be used as a template for user’s later reference.
User can also use MTP-Suite to edit and save trace information.
- 61 -
Page 74
PROMAX OTDR User’s Manual
15 OTDR Module Built-in Stabilized Laser Source
LS100
Enter Module-SLS.
interface is shown as Fig 15.1
Fig.15.1
“Wavelength”: Same as the wavelength of OTDR, wavelengths can be selectable.
“Mode”: Select different modes at PCW, 1KHz, 2KHz, 1KHz+Flash, 2KHz+Flash.
After the setup, click [Open] button to start the measurement. Click [Stop] button to stop the
measurement.
The function icon turns red while switching on this function module.
16 OTDR Module Built-in Optical Power Meter
PM100
Optical power meter operation:
Click “OPM” icon to enter Optical Power Meter interface as shown in Fig 16.1.
- 62 -
Page 75
PROMAX OTDR User’s Manual
Fig. 16.1 Optical Power Meter
After the setup, click [Start] button to start the measurement. Click [Stop] button to stop the
measurement.
The function icon turns red while switching on this function module.
“Unit”: Shift between dBm and W.
“Auto zero”: This function provides an easy method of auto zero of power meter, which can be used
to rectify the instrument’s power value under non-luminous state in daily testing.
Put protective cap on optical power testing output, and ensure that the tie-in is completely airproof.
“Wavelength”: Support 850, 1300, 1310, 1490, 1550, 1625, 1650nm wavelengths
selectable.
PM100 is only available with the OTDR module built-in PM100. With PM100, OTDR port
will issue a special modulation signal.
Except the specific light port (light port used for online testing), do not connect the optical
fiber which load signal to the OTDR port, any external signal over -30dBm will affect the
- 63 -
Page 76
PROMAX OTDR User’s Manual
OTDR sampling and cause permanent damage to the OTDR.
OTDR built-in source:
1. Clean connector properly.
2. Connect tested fiber to OTDR port.
3. Click {Source/VFL} in OTDR main interface.
4. Select the suitable wavelength.
5. Select the modulation.
6. Press the [Open Source] in the {Source/VFL}.
7. Press the [Close Source] to break off the source.
If there is only one wavelength, the default is to select this wavelength.
Under the modulation for loss measurement, please select the CW.
Under the modulation for fiber identification, please select the 1kHz or 2kHz.
For fiber identification easily, OTDR also offers a blink mode. When user select the blink
mode, modulating signal (1kHz or 2kHz) will be emitted in 1s, then the next 1s signal will be closed,
and then will be emitted in next 1s, and so on. User can select 1kHz+Blink or 2kHz+Blink for the
Blink Mode.
- 64 -
Page 77
PROMAX OTDR User’s Manual
17 VFL Application
The built-in VFL of OTDR module can shoot red laser into the tested fiber, the red laser will
glow at the marco bend, breaking points and bare fiber end.
The maximum detection range for OTDR VFL is over 5Km, it is a practical tool for fiber
identification, detecting and highlighting breaks, tight bends, splices or defective connectors
in optical fibers.
VFL is a perfect complementary tool to OTDR for its visualized detecting method in close
range like OTDR dead zone.
Fault locating with VFL:
Clean connector properly.
Connect tested fiber to VFL port.
Click {
Check “CW” option to emitter laser continuously or check “Flash” to emitter modulated
laser at 1Hz.
Press [VFL On] button to start VFL and the {
When VFL is working, press [VFL Off] to turn off VFL and the {
turn back to grey.
Source} in OTDR main interface.
Source} icon will turn orange.
Source} icon will
Fig. 17.1 VFL operation
- 65 -
Page 78
PROMAX OTDR User’s Manual
18 OCI (Optical Connector Inspector) of MCI100
MCI100 Optical Connector Inspector (OCI) can display connector surface enlarged view and find
dirty or damaged connector. It is convent for the operator to view the connector and remove any
hidden troubles,which may affect the transmission quality.
Optical fiber end face microscope connects the OCI by USB, and LCD displays the fiber end image.
Then user can judge it qualified or not. In order to meet different tests, MCI100 offers kinds of
specifications of male and female port adapter, including SC, FC, LC, MU and etc.
MCI100 support the following video fiber inspection probe for common functions:
Zoom in control: Support 200x and 400x.
Focus control: Fine tuning display quality.
Image capture: Can capture and save the image which displays in the LCD.
MCI100 is only available with the OTDR module built-in MCI100.
18.1 Inspect the Optical Connector
1. Connect the probe to the USB port.
2. Test fiber inserts the probe connector (Please select a suitable size connector).
3. Click “OCI” icon to enter Optical Connector Inspector interface as shown in Fig 18.1.
Fig. 18.1 Optical Connector Inspector Interface
4. Click [Start] button or Press “ ”（Start/Stop）button on OTDR front panel to start the
measurement. As shown in Fig 18.2
- 66 -
Page 79
Fig. 18.2 Measurement
PROMAX OTDR User’s Manual
5.Click [Stop] button or Re-Press “
measurement.
6. Exit this OCI interface: Click the exit button in the upper left corner; it will back to the main
interface.
In order to obtain a clear image, user needs to adjust focal length of probe and the
brightness and contrast of image.
If the probe is connected to the OCI before starting the application, user has to restart
the application to Initializes.
”（Start/Stop）button on OTDR front panel to stop the
18.2 Focus Control
Control the focus by the focus control knob in the probe.
18.3 Capture Image
Inspection the fiber connector, user can capture images and save images in BMP formats. Capture
images can be view in the OCI or be sent to the PC to make a report.
Capture Image:
1. Press [Start] button, and view the image. Then adjust the focus, brightness and contrast until
satisfied with the image.
2. Press [Save] button capture images and enter the save file dialog box.
3. Choose the file name and save location.
4. Press [OK] button to save the image and back to the main interface.
- 67 -
Page 80
PROMAX OTDR User’s Manual
18.4 View the saved Image
1. Click the file manger of main interface program.
2. Open the folder which saves the capture image.
3. Double click the capture image file which you want to view.
4. Press the [File] <OFF> to exit the file manager after you are finished.
- 68 -
Page 81
19 VPN Function
User can select VPN function, as following:
PROMAX OTDR User’s Manual
Fig. 19.1 VPN Function
- 69 -
Page 82
PROMAX OTDR User’s Manual
20 File Management
User can directly copy, move, rename and delete file or folder on OTDR.
Files can also be exchanged between OTDR and external storage devices like USB flash disk,
USB hard drive and PC.
OTDR is equipped with two types of USB ports:
USB host (Type A,
for connecting to USB storage devices.
20.1 Transfer Files or Folders between OTDR and USB
Storage Device
1. Connect USB storage device to OTDR USB port.
2. Click [File Explorer] icon on {Program} label to enter File Explorer where
active drives including USB drives and folders are displayed for file management.
3. After file transfer, user can directly unplug the USB storage device from OTDR.
In case USB storage device is not shown in File Explorer, please close File Explorer and
enter again.
20.2 Delete Saved Files
1. Click File Explorer icon on {Program} label to enter File Explorer.
2. Select the files or folders to be deleted.
3. Click “Delete” in “File” menu to delete.
- 70 -
Page 83
PROMAX OTDR User’s Manual
21 Maintenance and Calibration
21.1 Cleaning of Optical Interfaces
Interfaces must be kept clean. Special alcohol may be used to clean optic output. Always
replace protective dust caps when the unit is not being used, and keep the protective dust caps
clean.
In addition, flanges must be kept clean periodically.
21.2 Necessity of Cleaning
The diameter of optic core is 9 μm, and diameter of dust and other particulates ranges from
1/100 to 1/10 μm. Comparatively speaking, the size of dust and other particulates can cover
part of optic end and therefore degrade the performance of OTDR.
In addition, power density may burn dust into optic fiber and induce further damage (for
example, 0dBm optic power may produce about 16,000,000W/m
mode fiber). In this case, measurement will be inaccurate and irreversible.
2
power density in single
21.3 Safety Instructions before Cleaning
1. Make sure OTDR is power off when cleaning
2. Any operations contradict to the instructions may result in dangerous laser
injuries.
3. Make sure laser source is off, when cleaning any optic connectors
4. When OTDR is in operation, please always avoid looking directly into optic
output. Although laser radiation is invisible, it may do serious injury to
eyesight.
5. Be cautious of electric shock and make sure AC power is disconnected with
OTDR before cleaning. Always use dry or moist soft cloth to clean the outside
of OTDR, and never clean the inside
6. Please do not add any accessory to optic instrument or adjust OTDR at
discretion.
7. For maintenance, always go to qualified or certified professionals
21.4 Cleaning Tools
1. Optic fiber cleaner (for cleaning of optic connectors)
- 71 -
Page 84
2. Optic fiber cleaning rod (for cleaning of optic outputs)
3. Optic fiber cleaning tissue (for cleaning optic interfaces)
4. Isopropyl alcohol
5. Cotton ball
6. Paper tissue
7. Cleaning brush
8. Condensed air
21.5 Cleaning Procedure
1. Screw off the cap of flange
2. Clean the laser head carefully
3. Screw on the cap of flange
PROMAX OTDR User’s Manual
21.6 Battery Charging Instructions
Typically, OTDR Lithium battery supports over 7 hours continuous working.
Charging status is indicated in system main interface and OTDR front panel indicator.
1. In system main interface, charging status is displayed in the right upper corner.
Icon Description
70%
2. Front panel charging indicator (
to 1.4 Front Panel Indicators Introduction).
DC input is on
Battery remaining power
) also indicated charging status (Please refer
21.7 Battery Instruction
New battery is not fully charged, please charge the battery before the first time use
which takes approximately 3 hours.
Charging time is subject to the type of functional modules in use, environment and
etc.
- 72 -
Page 85
PROMAX OTDR User’s Manual
After the battery is used for some time, its capacity may not match charging status
indication (e.g. charging indicator indicates full but OTDR may power off due to
low battery), then battery calibration is necessary (Please refer to 20.9 Battery
Calibration).
Please do not store battery in the environment where temperature is over 60℃
(140F).
Use specified charger to charge the battery.
21.8 Charge Battery
Plug the charger to OTDR and power outlet, charging process automatically starts and
finishes after battery is fully charged.
21.9 Battery Calibration
After the battery is used for some time, the battery gauge may not be accurate, e.g. it indicates
battery has run out but the battery can still provide power supply, or battery power is zero, but
the battery power can last a long time. Then the battery should be re-calibrated.
Procedure:
1. Run out of the battery completely.
2. Charge the battery until fully charged.
21.10 Change Battery
1. Power Off OTDR and unplug power adaptor.
2. Open the battery dock cover.
3. Change battery.
4. Close the battery dock cover.
- 73 -
Page 86
PROMAX OTDR User’s Manual
Please no
make sure OTDR is completely off before changing battery.
Only factory can change clock battery.
te if the power indicator on front panel is off before changing battery;
21.11 Calibration Requirements
Calibration of OTDR is recommended every two years. Please contact our representatives or
nearby customer service centers for proper calibration.
21.12 Shipment
During shipment, please keep OTDR in prescribed temperature range.
Please note following points to protect OTDR during shipment:
Use original packing materials.
Avoid excessive temperature and humidity change.
Avoid direct exposure to sunlight.
Avoid shock and vibration.
- 74 -
Page 87
22 Troubleshooting
22.1 Common Problems and Solutions
Problem Possible Reason Solution
Charge the battery.
Battery power run out
Change a new battery.
Connect OTDR to external power
supply.
OTDR User’s Manual
Power on failure
Black Screen
External keypad no
response
External mouse no
response
Screen display blurs
Application no
response
Operation time is
short
Touch screen is not
responding properly
External power supply
is not connected
External power supply
is unplugged
Battery dock cover is
not closed properly
Screen backlight is off,
but power indicator is
on.
Battery run out, OTDR
is off, power indicator
is off.
External keypad is not
recognized.
External mouse is not
recognized.
Brightness is not set
properly.
Problem error.
Battery run out. Change the battery.
Battery is not fully
charged.
Touch screen larger
deviation
Connect OTDR to external power
supply.
Make sure external power supply is well
connected on both ends.
Close the battery dock cover properly.
Press any key to exit power saving
mode.
Charge the battery.
Change a new battery.
Connect OTDR to external power
supply.
Unplug the keypad and re-plug
Power off OTDR, plug keypad and
power on OTDR again.
Unplug the mouse and re-plug
Power off OTDR, plug mouse and
power on OTDR again.
Adjust brightness
Restart OTDR and run the application
again.
Charge the battery.
Re-calibrate the battery.
Connect external USB mouse to
calibrate the stylus.
- 75 -
Page 88
OTDR User’s Manual
with stylus
OTDR indicates low
battery after battery is
fully charged
Battery is not fully
charged.
Tab. 21.1 Common Problems and Solutions
Re-calibrate the battery
22.2 Trace Measurement Problems and Solutions
Problem Possible Reason Solution
Events are too close to
each other.
Try again with short pulse width
Try testing from the other end of
the fiber
Expected events are
not shown in the trace
Special events appear
at the end of the trace
Tab. 21.2 Trace Measurement Problems and Solutions
SNR is poor
Wrong configuration
Wrong configuration,
e.g. wrong end
threshold setting.
The fiber under test is
too long to exceed the
range.
Try again with wide pulse width or
increase averaging time.
Check OTDR parameters, such as
Reflection threshold, non-reflection
threshold and end threshold; and then
re-analyze or test again.
Adjust configuration and test again.
Select proper range and test again.
- 76 -
Page 89
OTDR User’s Manual
23 Warranty
23.1 Terms of Warranty
All Promax products are warranted against defective material and workmanship for a period of one
(1) year 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 PROMAX free of charge. In no case
will POMAX liabilities exceed the original purchase price of the product.
23.2 Exclusion
The warranty on your equipment shall not apply to defects resulting from the following:
Unauthorized repair or modification
Misuse, negligence, or accident
Promax reserves the right to make changes to any of its products at any time without having to
replace or change previously purchased units.
23.3 Warranty Registration
A warranty registration card is included with the original shipment of equipment. Please take a few
moments to fill out the card and mail or fax it to the local Customer Service Center of PROMAX to
ensure proper initiation of your warranty term and scope of your warranty.
23.4 Returning Instruments
To return instrument for reasons of yearly calibration or other, please contact the local Customer
Service Center of PROMAX to obtain additional information and a RMA# (Return Materials
Authorization number). And describe briefly reasons for the return of the equipment, to allow us
offer you more efficient service.
To return OTDR in the case of repair, calibration or other maintenance, please note the following:
Be sure to pack OTDR with soft cushion like Polyethylene, so as to protect the shell of
OTDR.
Please use the original hard packing box. If use other packing material, please ensure at
least 3 cm soft material around OTDR.
Be sure to correctly fill out and return the warranty registration card, which should include
the following information: company name, postal address, contact, phone number, email
- 77 -
Page 90
OTDR User’s Manual
address and problem description.
Be sure to seal the packing box with exclusive tape.
Be sure to ship to our local representative or directly to us in a reliable way.
- 78 -
Loading...