Yamasaki Y30 Series User manual

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User Manual
Y30 Series

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1 Copyright Information
Copyright © 2019 belongs to Yamasaki Optical Technology Pty Ltd. Without agreement and written
permission in advance from us, any content in the manual cannot be copied, saved for retrieval or spread
by any means, including electronic or photocopying, recording or any other method.
Guarantee
Yamasaki Optical Technology reserves the right to make changes to the products or information
contained herein without notice. No liability is assumed as a result of their use or application. No rights
under any patent accompany the sale of any such products or information. The battery is a consumable
part and is not subject to any warranty.
Measurement unit
The measurement units used in the manual comply with SI standard and conventions.

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2 Safety Information
Safety Instruction
During each stage of operating this OTDR you must always observe the following safety instructions.
Not taking any safety precautions or not following the instructions will violate the safety standards of
design, manufacturing and application of these the OTDRs. In no case will Yamasaki bear the
responsibilities for consequences incurred by violation of the following instructions.
Working Environment
The OTDR is designed to operate at a maximum relative humidity 95%, temperature 0℃～+50℃.
Before connecting to the power Verify that the product is set to match the available line voltage, the
correct fuse is installed, and all safety precautions are taken
Product Use - Do not use whilst charging the product.
Do not operate in an explosive environment
Do not operate the OTDR in the presence of flammable gasses or fumes.
Do not remove the protection sheath of the OTDR. Operating personnel must not remove the OTDR’s
cover. Component replacement and internal adjustments must be made only by qualified service
personnel.
An OTDR that appears damaged or defective should be made inoperative and secured against
unintended operation until they can be repaired by qualified service personnel.
Cautions
Battery: The battery for this the OTDR is a rechargeable lithium battery. If unused for a long
period of time the battery should be recharged before being used. If the OTDR is left idle for
more than two months, it should be recharged to maintain adequate battery volume even if
not intended to be used.Do not charge the battery for more than 8 hours. Do not take the
battery out without technical staff’s help. Do not expose the battery to fire or intense heat.
Do not open or damage the battery. Avoid touching the electrolyte inside the battery, which
is corrosive and may cause injury to eyes, skin or damage to clothes.
External power: All the OTDR’s in the series support external power.
Power Requirements supply: DC12V/3A, polarity:

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Introduction
Yamasaki’s range of OTDR products are the preferred choice of measurement instruments for optical fiber’s
specifications. With an OTDR, you can make assessments of one single optical fiber or a whole optical fiber
chain. Specially designed so you can directly observe events on any fiber optic chain.
The Yamasaki OTDR range of products checks the transmission quality of optical fiber through
measurement of backward scattered light. Standard organizations like International Telecom Union (ITU)
define backward scattered lights as an effective analysis means of measurement of optical fiber loss.
Backward scattering is also the only effective way of connector inspection, which can be applied to
measure the length of an optical fiber, too. Therefore, the Yamasaki OTDR ranges of products are a useful
tool for optical fiber manufacturing, installation and maintenance.
The Yamasaki OTDR range works through reviewing “events” in an optical fiber (for example, irregularities
and connectors), which is quite helpful for quality control for those who are in charge of optical fiber
manufacturing, installation and maintenance. The Yamasaki OTDR range of products can help identify any
irregularities in optical fiber, locate them, and measure their attenuation, relevant loss and their
consistency.
The Yamasaki OTDR range of products are helpful for field operations. It can help to check the qualification
of optical fiber chain circuit on a regular basis. For the purpose of future maintenance, transmission quality
and condition of optical fiber needs to be recorded and stored, which includes measurement of optical
path, total loss, and loss of all tie-ins and connectors.
Besides that, the Yamasaki OTDR’s range of products are easy to use, light and compact. In accordance to
ergonomics, they are designed for the user's convenience with a large LCD display and graphical interface.
They can save and transfer the measurement curves data to a PC using the provided software for further
analyzing, reporting and printing.
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Contents
Chapter I Overview .................................................................................................................................... 6
1 Instrument overview................................................................................................................................ 7
2 Instrument composition.................................................................................................................... 7
3 Instrument panel.............................................................................................................................. 8
Chapter II Main Operation Interface........................................................................................................... 9
Chapter III Optical Time-domain reflectometer Module............................................................................11
1 Main operation window.................................................................................................................. 15
2 Event list window........................................................................................................................... 16
3 Graphical analysis window ............................................................................................................ 17
4 Overview of main menu structure and functions........................................................................... 18
5 Usage............................................................................................................................................. 19
Chapter IV Working Principles................................................................................................................. 25
1 Working Principles......................................................................................................................... 25
2 Event point type............................................................................................................................. 25
Chapter V Technical Parameters............................................................................................................. 26
1 General features 26
2 Main functions................................................................................................................................ 26
3 Main technical indicators ............................................................................................................... 27
AnnexA Cleaning the optical output port................................................................................................. 28
Annex B Technical specifications for various OTDR standard modules ................................................. 29
Annex C Remote control command set................................................................................................... 30

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Chapter I Overview
Instrument overview
The Y30 Series OTDR is a testing instrument featuring high performance and multiple functions,
that is designed for the FTTx network. It is used to measure such physical characteristics of
optical fibers as the optic cable length, transmission loss and joint loss, accurate location of event
points and failure points of an optical fiber link.
It is widely used in such fields as engineering construction, maintenance test and emergency
repair of the optical fiber communication system as well as R&D and production test of the
optical fiber and cable.
The Y30 Series OTDR has the following features:
Super-short event dead zone of 0.5m, easy for testing the optical fiber patch cord;
Minimum sampling resolution of 2.5cm for accurately positioning event points;
Wide dynamic range of 50dB and data sampling points of 256k for long-distance and
multiple-branch communication network test;
PON network online test;
Both single-mode and multi-mode testing;
Advanced anti reflection LCD capable of clear interface displaying in field environments;
Multi testing modes, touch screen and shortcuts;
Automatic communication fiber monitoring;
Remote control;
Dual USB ports capable of connecting with the USB disk and printer;
Supports Bellcore GR196 and SR-4731 formats;
Multi-language operation interface;
Optional built-in visual fault locator (VFL), optical power meter and Fiber Inspection Probe
function;
The type of the OTDR optical output connector can be interchanged, keeping the end-face
the same as the cable under test.

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3 Instrument composition.
Mainframe: Y30 Series optical time-domain reflectometer
Standard configuration:
Serial No.
Name
Remarks
1
Power line assembly
Power line and power adapter: an input voltage of
100~240V, 50~60Hz, an output voltage and an
output current of 19V and 3.42A respectively at 2.0A
2
User Manual
3
Product certificate of
conformity
4
CD
Including simulation analysis software
5
Special portable soft bag
of OTDR
6
Special strap of OTDR

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3Appearance Diagram of the OTDR Product
3.1 Front Panel

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Introduction to the Electrical Interface oftheOTDR
DC12V/3A Power supply interface
Requirement to power supply interface: inputDC12V/3A, polarity.
USB SD Data Interfaces
The OTDR is fitted with a, USB Type A , USB and Micro SD card interface.
Charge Indicator
When charging the battery the indicator is green.
When charging has finished the indicator will automatically turn off.
LAN Ethernet Interface
Several models have such an interface.
Audio Interface
3.5mm head set - Several models have such an interface.
Instruction of Optical Interface of the OTDR
Optical Interface ofthe OTDR
The optical interface is the measurement interface of the OTDR.
Standard fitting is a FC/UPC optical adaptor (can be replaced with SC/ST/LC).
VFL Optical Interface
The optical interface is the measurement interface of the VFL.
(Not all models have VFL)
Invisible laser radiation
Do not look at the optical interface directly or look over the optical interface through
optical OTDR.
The optical interfaces of the OTDR and VFL output laser. Users should always avoid
looking at the laser outlet directly. Not to mention not to observe the optical outlets
with a microscope or magnifier. If the laser beam is exposed to the retina the eyes may
be damaged.

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4Introduction to the Home Page of the OTDR
The Y30 Series optical time-domain reflectometer can be provided with such options as, an optical
power meter, optical power source, VFL and Fibre Inspection Probe as required.
4-1. Operation Interface Diagram of the Home Page of the OTDR
Click any of the OTDR, Optical power meter, Optical Power Source, VFL, Fiber Inspection Probe and help
buttons to enter the corresponding operation interface to enable relevant functions.
Click the system setting button to enter the system setting interface for general setting and network
setting, as shown below. (Network settings only applicable for some models).
General setting includes the start-up module setting, language setting, Brightness setting, Time
setting and System Information

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5Introduction to the OTDR
5.1 The measuring Purpose of the OTDR
An OTDR displays the power of the returned signal related to distance. The information can be
used to confirm the transmission quality of a fiber optic link.
5.1.1 Measuring Contents of the OTDR
Position (distance) of event, result or fractured position of fiber opticlink;
Attenuation coefficient of the optical fiber in the optical fiber link;
Loss of a single event (for example, an optical connector or bending), or total losses from end to
end on the fiber optic link;
Reflection amplitude (or reflection level) of an event, suchas a connector.
5.1.2 The OTDR Curve Analysis
The OTDR analyzes the curve automatically.
Location of the curve:
Reflection event generated from connection and mechanicalconnector;
Non-reflection event (usually be fusion splice);
Optical fiber bundling: through scanning the first loss event that larger than the bundling
threshold, The OTDR detects the bundling of opticalfiber;
Events list: Category of events, loss, reflection, and distance are listed through calculation.
5.2 Basic Principle of an OTDR
OTDR stands for Optical Time Domain Reflectometer. The OTDR is an accurate optoelectronic
integrated OTDR. It relies on backward scattered lights that are generated from Rayleigh scattering
and Fresnel reflection when lights are transmitted in the optical fiber. It is widely used for the
maintenance, construction and monitoring of cable installations.
Basic applications:
a) Measure the length of optical fiber and cable
b) Measure the distance between two points on optical fiber and cable
c) Locate faults and ruptures of optical fiber and cable
d) Display distribution curve of optical fiber and cable loss
e) Measure attenuation coefficient of optical fiber and cable
f) Measure loss between two points on optical fiber and cable
g) Measure loss of tie-ins
h) Measure reflection of reflection events of optical fiber and cable
Information related to length is gained through time. These back scattering signals indicates the
attenuation (loss/distance) degree caused by optical fiber. The curve formed is a downwards curve, which
reflects the transmission characteristics of the optical fiber.

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Distance calculation formula of the OTDR: Distance = (c/n) × (t/2) Among
which: c= speed of light in vacuum (2.998 x 108 m/s)
t = Time delay between transmitted pulse and received pulse
n = refractivity of optical fiber during testing process (nominated by manufacturer)
When displaying the whole trace, each point on the trace graph represents the average value of
several sampling points. The value of each sampling point can be found by reducing or magnifying the
trace.
Fig. 5-1. THE OTDR Principle Diagram
5.3 Instruction of Events Categories
Events on optical fibers indicate abnormal points that have brought loss or a sudden change of
reflection power beyond the normal scattering of optical fiber material, including various kinds of
connections and bending, loss of flow or fracture on the optical fiber link.
Event points displayed on the screen are the abnormal points in the optical fiber that led to a deviation
of the trace, which are classified with special symbols on the trace. Events include “reflection event” and
“non-reflection event”.

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5.3.1 Initial Event
“Initial event” on the OTDR trace is the event that marks the starting point of optical fiber. Under
default conditions, “initial event” is located at the first event (usually it will be the first connector of the
OTDR) of the tested optical fiber. The event belongs to a reflection event.
5.3.2 End Event
“End event” on the OTDR trace is the event that marks the terminal of optical fiber. Under default
conditions, “end event” is located at the last event of the tested optical fiber. The event is called optical
fiber terminal event (usually be the end or fracture point of the tested optical fiber), which usually belongs
to a reflection event.
5.3.3 Reflection Event
When optical pulse energy is reflected (such as on the connector), reflection event occurs.
On the trace, reflection event is shown as peak signal, as shown in Fig.6-2.
Fig.6-2 Reflection Event

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5.3.4 Non-reflection Event
Non-reflection event brings loss on the whole transmission link of optical fiber, but no light reflection. On
the curve, non-reflection event is shown as drop of optical power, as shown in Fig.6-3.
5.3.5 Event Inspection
Fig.6-3 Non-reflection Event
An OTDR sends an optical pulse into the optical fiber under inspection, then, begins to accept the returned
optical signal immediately, and calculates the distance of an “event” in the optical fiber. The further the
event is, the longer time it takes to return back to the OTDR. The distance can be calculated according to
the time when receiving the event. Through inspecting the curve of the reflected signal, the optical
transmission characteristics of optical fiber, connector and joint can be confirmed.

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6. Optical Time-domain reflectometer Module
1 Main operation window
Click 【OTDR】shown in Fig. 2-1 to enter the OTDR operation interface. The Y30 SERIES series
OTDR testing interface is shown in Fig. 3-1:
Fig. 6-1 Diagram of Y30 Series OTDR testing interface
(1): Showing current system time, battery capacity.
(2): Test result display zone. The test result is obtained via current cursor calculation. Average loss:
the loss between A and B as well as the average loss of the optical section where cursors A and B
locate; connection loss: the connection loss at the connection point of cursor A shown in the test
result with four cursors shown on the OTDR main interface; reflection loss: the reflection loss
between the fiber optic reflection peaks of cursors A and B shown in the test result on the OTDR
main interface.
(3): Global display of small waveforms: To display always the Global overview waveforms of the
test curve.
(4): Reference origin point.
(5): Current active cursor. The active cursor is in red, the location of which can be changed via the
button or touch screen, with the remaining cursors shown in blue. The active cursor can be set
circularly between cursors on the screen via the button.
(6): The distance between the cursor location and the reference origin point; the location between
cursors A and B.
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7
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(7): Menu bar.
(8): Test condition display bar. Displaying such test conditions as current test range, wavelength,
pulse width and test mode.
(9): Name and saving time of the file read at present. It shows the name and saving time of the
file read if current test curve is the one saved in the file read.
(10): Color indication of current test curve. The icon indicates the color of the test curve of current
serial number. * 2
(11): Vertical scale value (dB/).
(12): Horizontal scale value (m/ , km/ , ft/ , kft/ or mi/ ).
2 Event list window
Click 【Analyze】on the main operation interface shown in Fig. 3-1 to analyze current trace curve
and show the event list, the diagram of which is shown in Fig. 3-2.
Fig. 3-2 Diagram of Y3 SERIES OTDR analysis interface
The meaning of each item shown in the event list is shown below (here take the distance unit km
as an example):
(1) Event type:
：Indicating the event point can be the optical fiber start point.
：Indicating the event point is the descending event point.
：Indicating the event point is the ascending event point.
：Indicating the event point is the reflection event point.
：Indicating the event point can be the terminal of the optical fiber.
Event list sub-menu
Event list

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(2) No.: Number of current event.
(3) Distance (km): Distance between current event point and reference origin point.
(4) Attenuation (dB/km): Average loss of the optical fiber section ahead of current event point.
(5) Loss (dB): Connection loss measured at current event point. * It indicates the connection loss
measured currently is bigger than the set critical threshold of the connection loss.
(6) Reflection (dB): Reflection loss measured at current event point. * It indicates the reflection
loss measured currently is bigger than the set critical threshold of the reflection loss.
(7) Accumulative total (dB): Total loss of the optical section between current event point and
reference origin point.
3 Graphical analysis window
Select graphical analysis, and click mode switching to conduct graphical analysis on current track
curve and show the graphical analysis interface, with the graphical analysis window shown in Fig.
3-3.
Fig. 3-3 Diagram of Y3 SERIES70 OTDR graphical analysis interface
Graphical analysis sub-menu
Event list
Graphical analysis interface

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Meaning of each graph in the graphical analysis window is shown below:
: Indicating the event point can be the optical fiber start point.
: Indicating the joint meets the pass-through condition.
: Indicating the joint connection loss exceeds the threshold, failing to meet the
pass-through condition.
: Indicating the connector meets the pass-through condition.
: Indicating the connector or reflector connection loss exceeds the threshold, failing to
meet the pass-through condition.
: Indicating there is a macrobend.
: Indicating the event point can be the optical fiber end point.
4 Overview of main menu structure and functions
The main menu bar is displayed by default in the main operation window, including seven menu
item buttons, as shown in Fig. 3-4.
Fig. 3-4 Menu item buttons in the main menu bar of Y3 SERIES70 OTDR

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Functions of all buttons on the menu bar are shown below:
【Avg.】: It is used to control the OTDR progressive average of the average times set against the
lost curve tested; after test, the contents shown on the button changes automatically from 【Stop】
to 【Avg.】, and the OTDR test stops at the same time.
【Real Time】: It is used to control the OTDR for real-time refreshing or stopping test, which is
available only in the manual test mode. Click the button in the manual test mode to change the
content shown on the button to 【Stop】, and the OTDR will refresh the test on the fiber loss curve
under test in real time; click it again to change the content shown on the button back to 【Real
Time】and stop the OTDR test.
【Setting】: It is used to enter the parameter setting sub-menu to set such items as the OTDR test
condition, reference origin point and optical cable information.
【Analyze】： It is used to analyze current curve and provide the event list. It will provide a prompt
if no event points are found.
【File】： It is used to enter the file operation sub-menu. It is used to realize such functions as
reading, saving, deleting, transferring and printing files.
【Curve I】: It is used to show the curve selection window, from which the curve number can be
selected, so that current active curve can be switched between curves I, II, III and IV. Curves I, II, III
and IV are in green, yellow, orange and blue respectively.
【Main Menu】: It is used to return to the main menu of the instrument for module selection and
system setting.
5 Usage
Set the OTDR test mode and each test parameter first before testing the optical fiber link. It is
shown in Fig. 3-5.

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Fig. 3-5 Window of setting Y3 SERIES70 OTDR test conditions
5.1Testing optical fiber link
The operation steps are shown as follows:
Select the test wave length.
Set such test conditions as the test mode.
Clean the optical fiber to be tested.
Connect the optical fiber to be tested to corresponding OTDR fiber output port.
Press the test button to obtain the waveform curve of the fiber under test.
When the test stops:
Select “Auto Test” or “Auto Analysis after Sampling” to analyze the test curve
automatically, mark the event point as per the loss analysis threshold set, and provide the
event list.
Otherwise, click【Analyze】to analyze the test curve, mark the event point as per the loss
analysis threshold set, and provide the event list.
The test result can be viewed in the event list after curve analysis.
5.2 OTDR test mode
There are two OTDR test modes available, namely, the auto test and manual one.
Auto test:
If the OTDR test mode is set to auto: Press the test key to adjust the test conditions automatically,
test the optical fiber link under test, analyze the curve automatically, and show the test curve and
event list in the main operation window.
Manual test: