Speedwolf OTDR32F-T4 Series User manual

Optical Time Domain Reflectometer
OTDR32F-T4
USER’S GUIDE

1

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
2
PREFCE
Thank you for purchasing and using this series of handheld optical time domain reflectometer. This
manual contains information about the operation and maintenance of the instrument, as well as common
troubleshooting guidelines. In order to facilitate your use, please read this manual carefully before operating
this instrument and follow the instructions in the book.
This document is restricted to the use of this instrument. No unit or individual may, without the
authorization of the company, tamper with, copy and distribute the contents of this manual for commercial
purposes.
The contents of this document are subject to change without notice. If you have any questions, please call
the supplier, we will be happy to provide you with the best quality service!

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
3
MENU
PREFCE............................................................................................................................................................... 2
Chapter 1 Summary........................................................................................................................................... 6
1.1 Instrument Unpacking Inspection................................. 6
1.2 Summary......................................................... 8
1.3 Attentions...................................................... 9
1.3.1 External Power Supply .........................................................................10
1.3.2 Internal Battery..................................................................................... 10
1.3.3 Laser Safety............................................................................................ 11
1.3.4 Instrument Maintenance....................................................................... 11
2.1 OTDR Basic Knowledge Introduction.............................. 14
2.2.1 Reflection Events..................................................................................... 16
2.2.2 Non Reflective Events............................................................................ 17

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
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2.3 OTDR Dynamic Range............................................. 19
2.4 OTDR Dead Zone................................................. 21
Chapter 3 The basic operation and usage of this series OTDR.................................................................... 22
3.1 This series of OTDR main operating window...................... 23
3.2 The Menu Structure and Function of OTDR........................ 25
3.4 The Setting Method of The Parameters of the OTDR .................. 30
Chapter 4 Basic Operation and Use Method of Optical Power Meter ................ 64
Chapter 5 Introduce of The Function of Face Detection........................... 66
Chapter 6 Visual Fault Location（VFL）.................................... 67
7.1 Daily Use and Maintenance of Instrument........................................................ 70
7.1.1 Connector Cleaning........................................................................................ 70
7.1.2 Internal Battery Maintenance ......................................................................... 71
7.1.3 Instrument Screen Cleaning and Calibration..................................................71

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
5
7.1.4 Instrument Calibration.................................................................................... 72
Chapter 8 Technical Parameters ............................................. 77
8.1 Technical Parameters of OTDR......................................................................... 77

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
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Chapter 1 Summary
1.1 Instrument Unpacking Inspection
The packaging and transportation of this instrument are strictly in accordance with the general technical
conditions of GB/T 9174-2008 "general cargo transport packaging". When you receive this instrument, please
check the product according to the packing list and check the quality of the product. If you find the packaging
damage, please keep the original packaging materials at the same time, immediately notify the shipping
company, and contact with the supplier of this product.
In the product packaging, along with the instrument, should also be equipped with a power cord, adapter,
analysis software and user manuals, etc.. After you receive the instrument, please check the integrity of the
packaging of the equipment for the first time. If you find that the material in the packing box is not complete,
please contact with the supplier.
Form 1-1 Basic Composition of OTDR

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
7
ITEM
NAME
QUANTITY
MASTER
OTDR32F
1
Accessory
Options
Power Cord
1
Power Adapter
1
User’s Guide
1
U Disk
（Including simulation analysis software）
1
Touch Pen
1
Soft Bag and Strap
1

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
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1.2 Summary
OTDR32F series of optical time domain reflectometer (OTDR) is a new generation of intelligent optical
fiber measuring instrument designed for the testing of optical fiber communication system. This product is
mainly used to measure various types of optical fiber, optical cable length, loss, and other parameters of the
quality of the connection; can quickly in the optical fiber link in the event points, fault location. It can be
widely used in the construction, maintenance and emergency repair of optical fiber communication system. In
the construction of fiber optic network installation, or follow-up rapid and efficient maintenance and
troubleshooting test, this product can provide you with the highest performance solutions.
The appearance of this novel instrument; OTDR has the industry's most simple interface, intuitive
operation; in similar products, buttons and touch screen dual mode of operation, greatly simplifies the user;
analysis of a type unique, quick access to the test result, the event is displayed in a tabular form on the main
interface, the relevant information including: event type, event location, loss, reflection, attenuation, event
between total loss; machine adopts intelligent power management mode, large capacity lithium battery makes

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
9
the machine work more than 10 hours, very suitable for the long-term field environment.
In addition to the OTDR function, the instrument can also be equipped with optical power meter, light
source, visual fault location (VFL) and the end detection function.
Figure 1-1 Main Menu
1.3 Attentions

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
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1.3.1 External Power Supply
Power adapter input meets the following requirements:100V～240V, 50/60Hz；@1.8A。
Power adapter output meets the following requirements:12V±1V, 2A, Polarity: Center is positive.
Please use the external power in strict accordance with the specification, otherwise it may cause
damage to the equipment.
1.3.2 Internal Battery
Internal lithium battery. In order to give full play to the performance of the battery, in the beginning of the
use of this instrument, please use the internal battery power, the battery power consumption, and then charge
the battery, the first charging time should not be less than 12 hours. When the temperature is too high, the
charging temperature of the battery in the battery is 0 DEG C to about 50 DEG C. The instrument is idle for

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
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more than 2 months or more, should be timely to keep charging the battery; not without removing the battery;
please don't let the battery near the fire, strong heat; do not open or damage the battery; long-term storage
equipment, the battery should be removed. When the battery is stored for a long time:-20℃～45℃。
1.3.3 Laser Safety
In the use of this instrument, please pay attention to avoid the eyes of laser output, but also not in the test,
open end fiber; when the instrument after use, please cover the light output of the dust cap.
When the instrument is visible red light function is open, please don't use the output port eyes of red light,
don't look at this time also connected to the output end of the optical fiber light.
1.3.4 Instrument Maintenance
1. The whole machine is guaranteed for 12 months, and the battery is guaranteed for 6 months。

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
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2. Optical output connectors and other devices are vulnerable parts, such devices are not within the scope of
warranty.
3. Because of the external factors can not resist the instrument damage or performance degradation, will not
be within the scope of warranty.
4. Due to improper operation of the instrument damage or performance degradation, will not be within the
scope of warranty.
5. Without the permission of the company or the designated authorized unit, is strictly prohibited to
disassemble the instrument, otherwise it will lose the warranty!
1.3.5 Instrument Return
If you need to return the product for product calibration or other reasons, please contact your supplier in

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
13
advance, and a brief description of the reasons for the return of the product, in order to provide you with more
timely and effective service.
Please note that when the product returns:
Using polyethylene thin soft pad instrument package, with perfect protection instrument housing;
Please use a hard packing box to ensure that the instrument is filled with at least 3 cm thick;
Fill in the product maintenance card correctly, including company name, address, contact person,
telephone number, problem description and so on;
Deliver the goods to your supplier in a reliable manner.

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
14
Chapter 2 OTDR Introduction
2.1 OTDR Basic Knowledge Introduction
OTDR is a precision optical measuring instrument of Rayleigh scattering and Finel reflection
transmission in fiber produced by laser backscatter principle is made, it is widely used in optical fiber, optical
cable installation, maintenance and repair, monitoring applications. It can be used to measure the length,
attenuation, quality and fault location of fiber optic cable.
The light in the optical fiber transmission, due to defects in doped fiber component inhomogeneity or
fiber link itself, the optical pulse propagating in fiber Rayleigh scattering occurs, where a portion of the optical
signal will be shot into the opposite direction along the veins are scattered back, so it is called the Rayleigh
backscattering, through the observation of Rayleigh timing after the change of scattering light signal intensity,
accurate measurement of the fiber optic cable to the loss distribution, the quality of the connection properties.

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
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According to the theory of light transmission, when the light is in the process of communication, there are
two kinds of transmission medium with different refractive index boundary (such as fracture or connector,
fiber end), will Fresnel reflection, through the regular reception of this Fresnel reflection signal, can be
accurately located along the length of the fiber discontinuous point. The size of the reflection depends on the
refractive index difference and the smoothness of the boundary surface.

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
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2.2 OTDR Test Event Type
OTDR test event is an abnormal point that causes a sudden change in loss or reflected power. Including
all kinds of connection points in the optical fiber link, melting contact and bending, crack or fracture and so on.
There are two main types of OTDR test events: reflection events and non reflective events.
2.2.1 Reflection Events
When measured along the optical fiber laser from the OTDR pulse, if the activity connection point, or
the end of the fiber, the refractive index due to mutation causes will produce the phenomenon of reflection,
will be part of the optical signal along the optical fiber. To return to the instrument, the instrument through the
acceptance of the reflected signals, will detect the reflection event. In the OTDR test curve, it is shown that the
peak width and amplitude are determined by the pulse width and the reflected intensity. As shown in figure
2-1.

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
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Figure 2-1 Reflection Events Diagram
2.2.2 Non Reflective Events

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
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When the laser emitted from the OTDR pulse to be measured along the optical fiber transmission, such as
melting point or bending leads to some loss of energy when the location does not exist at this time due to
mutations in the refractive index, so the reflection phenomenon will not occur, or can be ignored. OTDR
detects the difference of the energy change of the receiving end of the OTDR, which can be used to detect the
non reflection event parameters. Non reflection events declined as a signal energy in the test curve of OTDR,
the decrease of said power loss situation. As shown in Figure 2-2.

SPEEDWOLF —OTDR32F-T4 Series
Shenzhen SPEEDWOLF Technology Co.,LTD
A-14,Haide Building, Nanxin Road Nanshan District,Shenzhen,P.R.China
Email: am-u[email protected] / after[email protected] whatsapp:[phone] skype:speedwolf_8
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Figure 2-2 Non Reflection Events Diagram
2.3 OTDR Dynamic Range
Dynamic range is an important parameter of optical time domain reflectometer (dB). This parameter is
expressed as the maximum optical loss of OTDR that can be analyzed from the backscatter level of the
instrument output port to a specific noise level. In the practical use of OTDR, the maximum distance between