otdr hsv600

1. Prepared & Presented By:
IBFP Technologies Inc.
4th Floor, Penthouse, 105 Amang Rodriguez
Avenue, Dela Paz Pasig City
www.ibfptechnologies.com
“BASIC OTDR”

2. Tier 2 Testing: The OTDR

3. 1 What is OTDR?
CONTENTS
2 Basic Principle of Operation
3 Basic Requirement for
Setup of OTDR 4 Types of OTDR Available
5 Testing using OTDR 6 Trace Analysis
8 HSV User Training
7 Limitation

4. What Is OTDR?
YOKOGAWA
AQ7280OTDR
O T D R (Optical Time Domain Reflectometer)
is a versatile portable instrument that is used
widely to evaluate the characteristics of an
installed fiber optic link.
It also measures optical fiber parameters such as
attenuation, length, optical connector and
splices loss.
O T D R technology is designed to provide a
single ended test of any cable.
O T D R fundamentally is an Optical RADAR.

5. Basic operational principle
OTDR LASER
Signal
processor
and display
Photodetector
Fiber under test
Return
Signals
Optical
Circulator
5
Input signal

6. Control
Unit
Laser Transmitter
LCD Display
Splitter
Fiber under Test
OTDR Functionality
Basic OTDR function
Detector
OTDR
Connector

7. OTDR Setup
7

8. OTDR Setup - Range
OTDRs have four basic setup requirements regardless of brand: Range/Resolution, Pulse
Width, Index of Refraction and Time (number of averages). If any of these settings
contradicts another, the results will be poor. The first one to consider is “Range” or distance
of fiber to test.
Many OTDRs have automatic length detection functions, but if the length is known, the user
can set the range manually. The range setting should be adjusted to no less than 1.5 to 2x
the fiber span under test.
2975’ span under test
Set to
>6000’

9. Too short: less than
link length
Link
Can’t see entire link –
unpredictable results
Good: about 1.5x to
2x link length
Link
Good trace – can
see end of fiber.
Too long: much larger
than link length
Link
Trace is “squashed”
into left side of display.
OTDR Setup - Range: Summary

10. OTDR Setup - Pulse Width
Longer pulse widths are used for longer range tests. As distance increases, pulse width
must go up, otherwise traces will appear “noisy” and rough. Similarly, short traces will
be inconclusive if long pulse widths are used (events may be missed or clipped). Long
cable span=longer pulse width, Short cable span= short pulse width
“Short”
Fiber run
under test
>6500’
“Long”
Fiber run
under test
>10,000’

11. Too wide:
Can’t resolve events
About right:
Events can be seen
and trace is smooth.
Too narrow:
Trace “disappears”
into noise floor.
Link Link Link
Where is this
this event?
OTDR Setup - Pulse Width: Summary

12. Index of Refraction (IOR)
In review, the Index of Refraction is a way of measuring the speed of light in a
material. Light travels fastest in a vacuum, such as outer space. The actual speed
of light in a vacuum is 300,000 kilometers per second, or 186,000 miles per
second. Index of Refraction is calculated by dividing the speed of light in a
vacuum by the speed of light in some other medium (such as glass in the case of
fiber optics!).
Medium Typical Index of Refraction Speed
Vacuum 1.0000 Faster
Air 1.0003
Water 1.33
Cladding 1.46
Core 1.48 Slower
Index of Refraction =
Speed of Light in a Vacuum
Speed of Light in a Medium

13. OTDR Setup – Index Of Refraction
 Each different optical glass fiber has a different refractive index profile
consistent with it’s type and manufacture process. Typical G.652.B
singlemode fiber from Draka has an index number of 1.467 @
1310nm and 1.468 @ 1550nm. Note that the longer the wavelength, the
faster the light travels through the core.
 The user must set the OTDR to the proper GIR (Group Index of Refraction).
If the GIR is not set to the proper number, the OTDR may overestimate or
underestimate linear cable footage. Since the index is a measure of the
speed of light, if the GIR is not set properly, the OTDR cannot calculate the
proper footage.
 If the actual index is not known, use the machine’s default or the following
guidelines:
MM 850nm – 1.496 MM 1300nm – 1.491
(Corning SMF28e) SM 1310nm - 1.4677 (Corning SMF28e)
SM 1550nm – 1.4682

14. Index Of Refraction: Summary
As discussed earlier, Index of Refraction is a measure of the speed of light in a
medium. If the Group Index of Refraction (GIR) setting in the OTDR does not match
that of the fiber under test, the results will show incorrect distances as a result.
10,000’ of fiber
GIR 1.4677 @ 1310nm
GIR set at
1.462
OTDR thinks
Footage is 9,800’
Launch
Cord

15. OTDR Averaging Time
Launch
Cord
MUTOA
Averaging time refers to how long the user allows the device to take samples (a.k.a.
how long the test “runs”). The longer the testing/averaging time allowed, the better the
result. Eventually, enough data is averaged for a good test and continuing to test won’t
yield any more of an accurate result.
Corning
OV1000

16. Too many
Trace is smooth but
waste of time.
About right:
Trace is smooth.
Too few:
Trace is noisy – noise
floor is too high.
Link Link Link
OTDR Setup - Averages: Summary

17. OTDR Types
 Most common OTDRs use a “console”
design allowing the user to upgrade or
swap between MM and SM modules.
 These offer similar analytical features to the
lab quality OTDRs, but are more rugged
and field portable. Files can be saved to
various media and later downloaded to a
PC.
Fluke
OptiFiber
Wavetek MTS5100

18. OTDR Types
More common console OTDRs. Files can be saved to various
media and later downloaded to a PC.
Exfo
FTB-150
Anritsu CMA5000

19. OTDR Types
 Micro-OTDRs are the next generation of fast, economical test sets for field
use. These models offer fewer features than the larger console design and are
currently not upgradeable.
 Many manufacturers are focusing on development of these types of OTDRs
for size and weight reasons.
Noyes M100
OTDR
Noyes M200
OTDR
Noyes OFL200
OTDR

20. 1. Generates a baseline trace: A “visual”
of the link.
2. Can identify and evaluate specific
events in the link.
3. Cable acceptance tool.
4. Fault location tool.
5. Excellent documentation
capabilities.
6. Limited use in short length
networks. <50ft
OTDR Testing
Noyes M600 OTDR

21. Assorted Troubleshooting Tools
Talk Set
VFI
OTDR

22. Launch cables vary from simple reel (or “ring style”) through larger “lunch box”
style suitcases. Most modern OTDRs don’t require a launch suppression longer
than 250-500’, but many older models needed delay lines of 1000’ or more.
Launch cables

23. Using an OTDR w/ Launch Cable
 Use of a launch cable assures the user that the front end connector of the network will be
accurately measured. If the launch cable is too short, the front end connector will be
consumed in the deadzone.
 Likewise, a receive cable assures the technician that the far end connector is not broken
and the span has continuity.
Launch Cable
Receive
Cable
Cable under test
OTDR Launch
Port event
End
Event
Noise
Floor

24. OTDR Trace Analysis
Connect the OTDR to a launch (suppression/reference) cable. The secondary end
of the launch cable will be connected to an access panel at one end of the fiber
optic span under test. Optionally, a receive cable can be attached at the far end.
OTDR
Launch Cable
Panel Panel
Splice Closure
Receive Cable

25. Observation on Display
2
6

26. Network under test
Loss
Physical cable plant
as displayed on
OTDR screen
OTDR Trace ANALysis

27. OTDR Trace Analysis
Power
Loss
Distance Scale
Launch Cable Receive Cable
OTDR
Network Under Test
Splice

28. Most commonly, users manipulate two cursors, “A” and “B”, to illustrate what is
referred to as “two point loss” on an OTDR result.
This can be used to show loss in a single event or in a group of events. These
cursors can be individually moved left and right to specific points on the result.
OTDR Trace Analysis
A B

29. OTDR Trace Analysis
Power
Loss
A B
Distance Scale
Use cursor/markers to isolate individual events, such as the repair
splice location (above)…

30. OTDR Trace Analysis
B
A
Power
Loss
Distance Scale
…or the two point loss (attenuation) of an entire
network span (above)…

31. OTDR Trace Analysis
B
A
Power
Loss
Distance Scale
…or the physical length of a fiber span (above).

32. OTDR Trace Analysis
A B
Lead in Area
Tail out Area
LSA lines are an effective method of getting more accurate test results. Most OTDRs have loss
estimation based on the simple 2-point method, but use of LSAs obtain better accuracy through
events by calculating lead-in slope and tail-out slope. See below for an example:

33. OTDR Limitations
34
 The limited distance resolution of the OTDR makes it very hard to use
in a LAN or building environment where cables are usually only a few
hundred meters long.
 The OTDR has a great deal of difficulty resolving features in the short
cables of a LAN and is likely to show "ghosts" from reflections at
connectors, which confuses the user.

34. HSV 600 USER
MANUAL

35. Description of Symbols
Operation information and recommendations
Important operation information to follow to make the use of
this instrument more efficiently
To alert users of conditions that could cause damage to the
instrument or loss of important data.
To alert users of conditions that could cause serious body
injuries.
This instrument has 1310nm and 1550nm
high power semiconductor laser and its
safety conforms with:
FDA21CFR Part 1040.10 standard
IEC825-1(EN60825-1:1994) Ⅲ b standard
2

36. Component Function
Front Panel
On/off Button
Light See page 10.
4
Protector
Protect the
instrument
from collisions
Return to the desktop.

37. Component Function
Top Panel
SD Interface
AC adapter
RJ45 LAN
OTDR Port Standard FC / PC, SC/PC optical
Connector (SC/APC is optional)
10/100/1000 bit/s
USB Port
USB 2.0
5

38. Component Function
Display
Status Indicator
Function Icon
Soft Keyboard
Screen Shot Function
Brightness Control
Title bar
6

39. Component Function
Display
Soft keyboard
Events
Thumbnail
Markers Information
Trace
Shortcut Setting
7

40. Preparations
AC adapter
AC adapter input: 100~240V
600mA , 50~60Hz
DV output: 12.0V , 2A
Adapter Port
AC Adapter
Adapter Port
8

41. Preparations
Battery
1. Screw off 4 screws in the
battery cover (red circle in the
figure)
2. Remove the battery cover
3. Install the battery
4. Attach the battery cover
5. Screw on the screws
Caution:
9
Please recharge the battery every 3 months.

42. Preparations
Power ON/OFF
Start
1.Press button on the panel for more than 1s.
2.The lightening of the LCD means turning on. Stop pressing.
Note：For the battery of the unit, its charging situation, charging time, and the operating and
storage environment of the unit will affect the battery performance:
 Please charge the battery with the specified power adapter equipped with the unit.
 The charging time of the battery is not more than 5 hours when the unit is shut down.
When finish the battery charging, please disconnect power adapter in time. Long-time
charging will reduce the battery performance and operational life span and even cause
battery damage.
 The operating and storage temperature of the unit will also affect the performance of the
battery and unit: The operating temperature range of the instrument should be from -
10℃ to +50℃， storage temperature range from -40℃ to +70℃, and relative humidity
from 0% to 95% non-condensing.
10

43. Preparations
Shut down
button, and the shutdown interface would pop up.
1. When the instrument is in operation, press
2. Click on to cancel the operation.
3. Click on to turn off the screen and shut down the instrument.
4. Click on to enter the standby mode. Press any key to wake it up.
5. When the instrument is in operation, long press (more than 5s) the button to shut it down directly.
Charging
Full
3/4
1/2
1/4
Low
Red： Charging
Green：Full
LED Indicator
Please charge the battery when it starts to alarm because of low battery.
Battery capacity
indication
11

44. Connect Fiber
Before using the OTDR to measure, the operator should ensure that the type
of fiber connector is consistent with the instrument’s optical connector and
please prepare cleaning tools to clean the fiber interface.
Otherwise, it will affect measurement accuracy and potentially cause serious
damage to the equipment.
To ensure the instrument functioning properly and obtain the best test result,
you should always clean the fiber end with ethanol (ethyl alcohol or pure
alcohol) before connecting to the laser interface. Wait until the alcohol is
volatilized before connecting the fiber to the instrument.
When the fiber is disconnected from OTDR, cover the laser interface with its
cap immediately to avoid dust or dirt getting into the laser interface.
Do not look directly into any live fiber or direct laser light. Wear appropriate
protective eyewear. Otherwise, it can cause blindness or damage to the eye.
12

45. Set Up
13
You can use the Setup Menu to select the AUTO mode.
1. Press ’ Setup’
2. Select ‘Test Mode’
3. Select ‘Auto Test’
AUTO
The auto-setting mode could be set in home page directly:
1. Press ‘Auto’ key
2. Set wavelength and time

46. Manual
14
Detail setting:
1.Press ‘Setup’
2.Select ‘Test Mode’
3.Select ‘Manual Test’
4.Choose the appropriate parameters, will help to get a better results.
To obtain the distance accurately, please select the high
resolution.
Manual test mode need to set up the parameters according to the actual situation.
Fast setting：
1. Do not press ‘Auto’
2. Set parameters one by one
3. Start measurement

47. Start/Stop
15
1. Touch on the screen to start the test.
3. The progress bar will appear after the connection state detecting, touching
on the screen will stop test.
2. It will undertake connection state detecting first. If the connection state is bad,
please clean or replace the connector.

48. Analyzing the Results
16
Results
Events Table
Touch the event in the table, and the corresponding event will
highlight on the trace.
Fold and unfold the
event list

49. Cursors test Distance/Loss/Slope
17
Cursor
Left
Cursor
Right
Fine-tuning
Cursors
Click target location on the trace, the currently selected cursor will move to there.
Loss/Slope
Loss/Slope switch keys
LSA-Least square attenuation
2pt- Two point method
Distance

50. Real-time
18
Set up the real-time mode:
1、 Select ‘Setup’
2、 Select ‘Acq. Time’
3、 Select ‘Real-time Mode’
The connection state detecting will
appear after start the measurement,
but the progress bar won’t appear.
The result would not be analyzed in real-time mode.
Set real-time mode rapidly: Press
‘R.T.’ key

51. Zoom & Move
19
V.Zoom In
V.Zoom out
H. Zoom In
H. Zoom out
1:1
Zoom In Free
Move - Move the trace free
In addition to the area magnification, the focus is
the cursor.
Before After Thumbnail

52. Store & Load
20
3
1
Store
1. Please set up the store parameters at first.
2. After finishing setting, you can press the store button to storage the results quickly.
Load
1. Open the file manager
2. Select the target file or folder.
3. Click on the ‘Copy’ button.
4. Enter the target folder, click on the ‘Paste’ button.
4
Press icon on the title to turn on the soft keyboard.
Store
Store setup
Open File Manager

53. Built-in Software
21
Touch Screen Calibration
1. Click on in the home page to enter the setting page.
2. Then click on to start the calibration program.
3. Click on the icon appearing on the screen successively with the touch screen pen to
back to the home page. The touch screen calibration completes.
Program Management
1. Click on in the home page to enter the setting page.
2. Then click on to enter the program management window.
3. Insert in u disk or SD card saved with module program.
4. Click on the list item ‘add new module’ at the bottom to turn it into white.
5. Click on ‘add’, and then the program would recognize the module program in the U disk
or SD card automatically, and display in the newly pop-up list.
6. Click on the module program which needs to be added.
7. Click on ‘install’ to complete adding.

54. Built-in Software
2. Then click on to open the upgrade window.
3. Insert in u disk or SD card saved with firmware or platform program. The
program would recognize the upgrade program automatically.
4. Click on the list item of selected firmware or platform, and the confirm dialog
box would pop up.
5. It would start to upgrade after confirming. The upgrade completes after
restarting the platform.
Attention:
1. Please make sure that the needed upgrade program is in the U disk or SD card, and
the U disk or SD card could be accessed by the platform.
2. Do not remove the battery in any upgrade process.
3. Do not remove the U disk or SD card in any upgrade process.
4. In order to upgrade successfully, AC adaptor must be used during the process, and
make sure the platform has enough available flash place.
22
Upgrade
1. Click on in the home page to enter the setting page.

55. Accessory Introduction
23
Visual Fault Locator
(VFL)
Click on (VFL) icon on main interface to start VFL feature, as shown below:
Quit
Click
Start/Stop
VFL
Mode Selection

56. Accessory Introduction
24
Optical Power Meter
(OPM)
Click on (OPM) icon on main interface to start OPM feature, as shown below:
ReferenceSetting
TestWavelength
WavelengthAdjustment
Reference
Power Level
Quit
Unit Switch

57. Accessory Introduction
25
Fiber Inspection Probe
(FiberSpot)
Click on (FiberSpot) icon to start FiberSpot feature, as shown below:
Pass/Fail
Report Image
Hold
SaveImage
Zoom In/Out
Brightness Adjustment
Sharpness Adjustment
Contrast Adjustment
Quit
About

58. Accessory Introduction
26
Steady laser source
(Laser)
Click on (Laser) icon to start Laser feature, as shown below:
Wavelength Selection
On-Off
Mode Selection

59. Accessory Introduction
27
Linear view
(FiberPath)
Click on (FiberPath) icon to start FiberPath feature, as shown below:
Event Type/Distance
EventsSpacing
Major Information
Event List
Page Up/Down
Switching Trace
File Manager
Saving Option
Save
Add/Delete

60. Accessory Introduction
28
Remote Measurement(Remote)
Click on (Remote) icon on the main screen to start Remote function interface as
shown below:
1. Install SYNCOR software on your PC and start it ；
2. Start the OTDR and connect it to the internet with a network cable. Set the IP address of the OTDR device.
The IP address of the PC and OTDR should be in same network segment ；
3. Click on icon on the main screen of the OTDR to start Remote control interface ；
4. Set the IP address of the Server end as same as the address of the PC. The port number is set for 5890
IP address of Serverend Port number(5890)

61. click on Connect as shown below:
Connect successfully as shown below：
29

62. 5.Select SYNCOR>>Device Management and refresh this interface on the
PC, you see the OTDR device as
shown below：
6. Click on Remote as shown below：
30

63. 7. If connect Remote successfully, you see the test interface as shown below：
8. Set the parameters in Measurement Setting. Click on Start Measurement to start
Remote measurement.
Click on Stop to stop the measurement.
Measurement
setting
Stop Measurement
StartMeasurement
31

64. Trouble Shooting
32
Signal on Fiber
Alarm about the signal on fiber after starting the
measurement or in the measurement process..
Please make sure to stop the measurement, otherwise
it can severely damage the instrument. Start measuring
again after closing the signal on the fiber.
Connection State
If the connection state is bad, or it alarm for strong
reflection, please clean or replace the connector. It will
cause the instrument failure or not working properly.
Setup Problem
The trace is too short—Increase the distance range
Too large noise—Increase measurement time and pulse
width
Events incomplete—Reset the threshold to Auto
Resolution Low—Reset the high resolution
Blank screen or fail to boot
Charge the battery
Improper use of charger
Replace the battery
Hardware faults

65. Customer Service and Support
33
General Information
Company warrants this instrument against defects for 3 years from the date of shipment.
Exclusions:
1. The build-in optical connector adapter is not covered in the warranty. It carries a three -month
warranty.
2. The built-in battery is not covered in the warranty. It carries a one-year warranty.
3. The warranty does not cover failure resulting from improper use or installation, nor does it cover
normal wear and tear, accident, abuse, and negligence.
Liability
Company shall not be liable for damages resulting from improper use of this instrument, accessories,
and software.
Company shall not be liable for damages resulting from modification of this instrument and its
accessories by unauthorized personnel or the warranty label has been removed.
Company shall not be liable for damages resulting from external forces, such as mechanical forces,
soaking, extreme heat or cold, and fire.
Company shall not be liable for damages resulting from the use of this instrument, nor shall be
responsible for damages or failure of other equipment to which this instrument is connected.

66. Customer Service and Support
34
Service and Maintenance
Send your instrument for services or maintenance.
Please contact your local distributor where you purchased from or contact our customer service
center listed in this guide. Our representative will determine whether your equipment needs to
be tested, repaired or calibrated.
Please backup your data before sending it in for repair.
Please try to use the original packaging materials and attach a statement to describe in detail of
what the observed problems were.
Please return the equipment to your local distributor or our local repair center with freight paid.
After repair is done, we will return the equipment with a repair report. If the instrument is under
warranty, we will pay the return freight. If the instrument is no longer under warranty, you will
be responsible for the cost listed on the repair report.
After testing, if the returned equipment is found to be working properly and meet all the
applicable standards, all related costs will be charged to the user.

67. HANDS ON
EXERCISE
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