WTO2-S13

Optical Wavelength WTO2-S15, WTO2-S13, WTO2-S35, WTO2-M85, WTO2-M13 Users Guide

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Page 1

Optical Wavelength Laboratories

OPERATIONS GUIDE

OWLTrek II Series

Optical Time Domain Reflectometers

(OTDR)

Singlemode: WTO2-S15 / WTO2-S13 / WTO2-S35

Multimode: WTO2-M85 / WTO2-M13 / WTO2-M83

Revision 3A

OWL-INC.COM

OWL

Optical Wavelength Laboratories (OWL)

N9623 West US Hwy 12

Whitewater, WI 53190

Phone: 262-473-0643

Internet: OWL-INC.COM

Page 2

WARNING!!!

HANDLE WITH EXTREME CARE!

This device contains expensive,

This device is to from – avoid dropping this device.

highly susceptible damage impact

extremely fragile optical fibers, lasers, and photodiodes.

DO NOT OPEN THIS UNIT!

CRITICAL DAMAGE POINT Fiber crush point near enclosure's edge.

NOTE: This is an issue for ALL SIDES of the enclosure when re-sealing the unit

SENSITIVE POINTS

CRITICAL DAMAGE POINT

Fiber coupling to laser and photodiode

Page 3

SECTION 1: INTRODUCTION

TABLE OF CONTENTS

SECTION 1: INTRODUCTION

About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Performance Expectations and Limitations . . . . . . . . . . . . . . . . . 7

Reflective Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Fault Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Fiber Length Measurement . . . . . . . . . . . . . . . . . . . . . . 7

Backscatter Events . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Backscatter Events . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Attenuation Measurement . . . . . . . . . . . . . . . . . . . . . . . 7

Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Eye Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Electrical Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Operational . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Product Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Indicator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

SECTION 2: OTDR TESTING

Power ON/OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Key OTDR Trace Parameters . . . . . . . . . . . . . . . . . . . . . . . 12

Wavelength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Index of Refraction . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Capture Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Pulse Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Number of Samples . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Dead Zone Length (m) . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Setting Test Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Set Wavelength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Set Index of Refraction. . . . . . . . . . . . . . . . . . . . . . . . . . 13

Setting Trace Options . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Capture Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Pulse Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Number of Samples . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Dead Zone Length (m) . . . . . . . . . . . . . . . . . . . . . . . . . 14

Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Starting an OTDR Trace . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Cursor Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

SECTION 3: TRACE ANALYSIS

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Fiber Length Measurement/Link Loss . . . . . . . . . . . . . . . . . . . 17

Fiber Attenuation Measurement . . . . . . . . . . . . . . . . . . . . . . 17

Reflectance Measurement . . . . . . . . . . . . . . . . . . . . . . . . 18

Trace Events Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Saturation Inversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

SECTION 4: TRACE STORAGE

Stored Readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Saving a Trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Loading a Previously Stored Trace . . . . . . . . . . . . . . . . . . . . . 21

Page 4

SECTION 1: INTRODUCTION

TABLE OF CONTENTS

SECTION 5: OTDR SETUP

Menu System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Navigating the Menu System . . . . . . . . . . . . . . . . . . . . . . 22

Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Help Topics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Operations Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

OTDR Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Length Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Fiber Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

EOF Event Threshold . . . . . . . . . . . . . . . . . . . . . . . . . 23

Event Pass/Fail . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Events Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Reflective Event Threshold . . . . . . . . . . . . . . . . . . . . . . 24

Loss Event Threshold . . . . . . . . . . . . . . . . . . . . . . . . . 24

Maximum Reflectivity . . . . . . . . . . . . . . . . . . . . . . . . . 24

Maximum Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Configure Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Fiber ID Tone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Visual Fault Locator . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Set Backscatter Coefficient . . . . . . . . . . . . . . . . . . . . . . . 26

System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

User Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Enter User Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Enter Phone Number . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Display Preferences . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Dimness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Trace Clipping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Remove Tails . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Power Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Dim Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Standby Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Off Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Utilities Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Set System Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Set APD Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Format Data Flash. . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Factor Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Stored Traces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

SECTION 6: OPERATION/MAINTENANCE

Optical Power Meter (OPM) Operation . . . . . . . . . . . . . . . . . . . 36

Visual Fault Locator (VFL) Operation . . . . . . . . . . . . . . . . . . . . 37

Fiber ID Tone Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Live Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Manually Setting End-of-fiber (EOF) marker. . . . . . . . . . . . . . . . . 40

Cleaning the Optical Ports . . . . . . . . . . . . . . . . . . . . . . . . . 41

SECTION 7: OWLVIEW FOR OTDR SOFTWARE

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Installing OWLView Software. . . . . . . . . . . . . . . . . . . . . . . . 42

Installing from USB Flash Drive. . . . . . . . . . . . . . . . . . . . . . 42

Installing from Website. . . . . . . . . . . . . . . . . . . . . . . . . . 42

Launching the Software . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Quick-Launch Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Operating the Software . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Downloading Traces from the OTDR . . . . . . . . . . . . . . . . . . . 43

Opening a Stored Trace . . . . . . . . . . . . . . . . . . . . . . . . . 44

Saving Traces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Printing Traces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Page 5

SECTION 1: INTRODUCTION

TABLE OF CONTENTS

Printing Multiple Traces . . . . . . . . . . . . . . . . . . . . . . . . . 44

Closing Traces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Working with SOR Files . . . . . . . . . . . . . . . . . . . . . . . . . 45

Exporting SOR Files. . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Batch Export SOR Files . . . . . . . . . . . . . . . . . . . . . . . . . 45

Import SOR files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Working with Traces . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Button Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Thumbnail View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Trace Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Trace Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Event Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Miscellaneous Info . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Status Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Rectangle Zoom . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Zoom In / Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Show / Hide Cursors . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Event Analysis / Proper Cursor Placement . . . . . . . . . . . . . . . . 49

Tools Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Update Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Change Length Units . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Invert Y Axis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Help Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

SECTION 8: APPENDICES

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Maintenance Information . . . . . . . . . . . . . . . . . . . . . . . . . 50

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

ABOUT THIS MANUAL

Throughout this manual you will find various symbols that assist with understanding the procedures outlined in this manual. Below is a list of these symbols and a short description of their purpose:

Helpful tip

Cautionary information

Potentially dangerous condition or operation

Page 6

SECTION 1: INTRODUCTION

BEFORE YOU BEGIN

All personnel testing optical fibers should be adequately trained in the field of fiber optics before using any fiber optic test equipment. If the user is not completely familiar with testing fiber optics, they should seek competent training. Such training can be acquired from a variety of sources, such as local hands-on training classes or online courses.

Valuable information about fiber optic testing can also be gathered from reading printed literature carefully or by thoroughly reading supplied operations manuals.

OTDR basics

The above is especially true for Optical Time Domain Reflectometers (OTDRs). OTDRs are complicated technical devices, requiring a great amount of technical skill, knowledge, and expertise to operate. Proper setup and trace interpretation are paramount to a successful OTDR test, and the consequences of being inadequately trained could result in a significant amount of network down-time and repair costs.

In addition, OTDRs are delicate scientific instruments, and should be treated as such. Great care should be taken to ensure that all optical ports are kept clean and free from debris. The reasons for this are two-fold: 1) a clean OTDR produces accurate and precise results; and 2) if debris is allowed to build up in the OTDR test port, over time connector insertions will grind the debris into the OTDR port endface, resulting in scratches or “pits” that require extensive and costly repairs.

The main purpose of an OTDR is to locate faults in an optical fiber that exhibits unacceptable amounts of optical loss, or is no longer functioning properly. These faults are commonly called “events” and include anomalies such as breaks, shatters, connector endfaces, patch panels, splices, macro-bends, and micro-bends. By knowing the precise distance to an event, the technician can determine the nature of the event and quickly restore the network to its former working state.

There are two types of events detectable by an OTDR: Fresnel (reflective) and backscatter (non-reflective).

Fresnel events are caused by “glass-to-air” boundaries in the optical fiber, which causes a high amount of light to be reflected directly back toward the OTDR. Common Fresnel events include breaks, shatters, connector endfaces, patch panels, or even the end of the fiber. End-of-fiber detection can also be used to measure the end-to-end length of the fiber.

Backscatter events are caused by the intrinsic properties of the optical fiber. The make-up of the optical fiber scatters the light in all directions, including a small amount that gets scattered back towards the OTDR. Common backscatter events are splices (either fusion or mechanical), macro-bends, and micro-bends. Backscatter can also be used to measure the attenuation (loss) on a certain section of an optical fiber.

OPM basics

Optical power meters (OPM) are designed to measure the amount of optical power (i.e. the “brightness” of light) exiting an optical fiber. OPMs calibrated against government calibration standards such as NIST ensure these power measurements are accurate. OPMs have two main functions:

Output power measurement. Connect directly to a transmitter port to verify the output power of active equipment or test light sources is within specification. Connect to the far end of a link to: 1) ensure continuity and connector polarity; or 2) measure output power from active equipment to ensure receiver sensitivity.

Optical loss measurement. When used with a test light source, an OPM can be “zeroed out” to measure the end-to-end loss of a fiber link.

Page 7

SECTION 1: INTRODUCTION

DESCRIPTION

Upholding OWL’s commitment to high-quality, yet affordable, fiber optic test equipment, the OWLTrek II OTDR enables fiber optic professionals to quickly and easily troubleshoot and locate optical faults in multimode and singlemode fibers.

The OWLTrek II is truly a hand-held unit, being one of the smallest OTDRs on the market today – easily able to fit into a shirt pocket – yet having capabilities of other OTDRs costing thousands of dollars more.

Optical fiber traces are displayed on a high-resolution color LCD display which implements state-of-the-art display technology to allow the OTDR’s high-resolution color LCD display to “flip” between portrait or landscape mode automatically simply by rotating the device 90°. By “flipping” from portrait to landscape, the user sees a wider viewing area, displaying more trace information on the highresolution color LCD, and allowing for greater viewing detail.

Important OTDR trace parameters such as pulse width, index of refraction, and data point averaging are fully user-configurable, and are accessible through an intuitive menu system. A minimum of 65 traces using the longest trace distance can be stored in the OWLTrek II’s internal memory.

Powering the OWLTrek II is a re-chargeable Lithium-polymer battery that allows for hours of normal usage.

The OWLTrek II is equally suited to testing multimode and singlemode fibers in many test environments, including LAN, MAN, WAN, FTTH, Telco, CATV, Manufacturing, and Laboratory.

Some models also include an optical power meter port used for optical power and optical loss measurement.

up to 20

PERFORMANCE EXPECTATIONS AND LIMITATIONS

REFLECTIVE EVENTS

Fault Location. The main function of the OWLTrek II OTDR is to detect the presence of highly reflective events, otherwise known as

Fresnel events, such as breaks, shatters, patch panels, or the end of the fiber link. The distance to an event is shown as a spike on the OTDR trace, allowing the technician to quickly locate the problem and restore the network.

Fiber Length Measurement. The OWLTrek II can give the operator a general idea of the length of the optical fiber by placing the cursors at the first and last reflective events, although the last reflective event is not guaranteed to be the end of the fiber. For example, a severe enough break mid-span could prevent the OTDR from detecting other events beyond the break, or the OTDR trace could show echoes or ghosts of previous Fresnel events.

BACKSCATTER EVENTS

Backscatter Events. The OWLTrek II has some ability to locate and measure backscatter events. Tweaking pulse-width and

averaging settings may enhance the OWLTrek II’s ability to detect backscatter events. However, even with optimal settings, low loss backscatter events will become less detectable as the event gets farther away from the beginning of the fiber, especially on longer fibers.

Backscatter events are also more difficult to measure and interpret. Proper cursor placement is vital to the accurate measurement of backscatter events. Only individuals with OTDR training and expertise should attempt backscatter event measurement. Interpreting OTDR traces will be covered in more detail later in this manual.

Attenuation Measurement. Backscatter can be used to measure the attenuation (or loss) of certain sections of an optical fiber by placing the cursors at the beginning and end of the segment of fiber to be measured.

If available, however, a Power Meter / Light Source (PMLS) test kit or Optical Loss Test Set (OLTS) should always take precedence over an OTDR for end-to-end attenuation measurements.

Page 8

SECTION 1: INTRODUCTION

WARNING

ASSEMBLED IN USA

Optical Wavelength Laboratories

Whitewater, WI 53190 • 262-473-0643

MODEL#: WTO2-S15 SERIAL#: WTOH100001

This product complies with the following EU Directives: EN 61326-1:2006 EN 61010-1:2001

OTDR: Class 1M Laser Output

VFL: Class 2 Laser Output

Do NOT stare into beam.

Output Type: FP Laser Output 8: 1550nm

Power: 6VDC, 1 A

IEC 60825

PRECAUTIONS

Eye Safety

NEVER

look into the connector port of any fiber optic test or transmission equipment, patch cable, fiber link, or other

installed fiber. Always assume that active laser equipment is attached to optical fibers, and is powered on.

Do not run a test on the OTDR unless it is connected to the fiber under test, or the dustcap is firmly in place.

Electrical Safety

Only use appropriate AC adapters for charging this device. Use of inappropriate power adapters could cause damage to

the device, and could cause harm to the user from fire and electrical shock.

Operational

eep connector ferrules and optical connector ports clean to prevent irreparable damage to the OTDR port. For best

results, replace dust caps after each use.

Connector

Service

LABEL INFORMATION

On the back of each OWLTrek II OTDR is a label similar to the one shown here containing model number, serial number, power requirements, and special cautionary information.

IEC 60825

Power: 6VDC, 1 A

For best results,

do NOT insert APC (Angled Physical Contact) connectors into the OTDR and OPM ports.

There are no user-serviceable parts in this device. Unauthorized attempts to service this product will void the product warranty.

OTDR: Class 1M Laser Output

VFL: Class 2 Laser Output

Do NOT stare into beam.

OTDR port Class 1M Laser Output

VFL port Class 2 Laser Output. Do NOT stare into beam.

USB port 6VDC, 1A

Directive 2002/96/EC of 27 January 2003 on waste electrical and electronic equipment (WEEE)

EU Directives EN 61326-1:2006 (EMC) and EN 61010-1:2001 (Safety)

Page 9

SECTION 1: INTRODUCTION

PORTS

Visual Fault Locator Port (VFL) – Visual Fault Locator port for troubleshooting

USB Download Port ( ) – downloads data from the OTDR to the PC for software trace analysis and digital data

storage; also used for battery charging

OTDR Port – SC connector port; connects the OTDR to the fiber under test;

OPM / OTDR port – OTDRs that include an integrated OPM use a duplex LC connector port; each port is labeled appropriately

Reset Button – resets the OTDR in case of malfunction

BUTTONS

VFL

Fiber #x

OTDR

AUTO

Menu Buttons – activates the associated menu option

Navigation Buttons – moves cursors or menu options in the direction of the button, or

are used to zoom in or out on cursor placement

Power Button – powers the OTDR on; press and hold to power off; also, while the OTDR is

on, brief press will activate other functions

Enter Button – from the trace screen, this button changes the function options menu at

the bottom of the screen. Also activates menu options while in the menu system

1550nm

06086m

20226m

24718m

L mx

14140dB2.43x

RFL dBx

-81.00x

ENTER

3.34x

TESTZOOMLOCKCURSOR

Page 10

SECTION 1: INTRODUCTION

DISPLAY

Fiber ID – name of the currently loaded fiber trace

OTDR Test Mode – shows which test mode the OTDR

is in – AUTO, USER, SEMI, or FILT

VFL Indicator – shows the current VFL mode: blank = OFF; = ON continuous; = ON flashing

Zoom Indicator – displays “H” for horizontal zooming, and “V” for vertical zooming

Battery Life Indicator – displays the remaining battery life

Trace Viewing Area – displays the results of the OTDR trace(s), which users can zoom in on for more

detailed trace analysis

Trace Wavelength – shows the wavelength(s) of the traces displayed in the trace viewing area. The active

trace wavelength will be listed on the left.

red pink

Fiber #x

1550nm

06086m

20226m

24718m

L mx

14140

AUTO

2.43x

3.34x

RFL dBx

-81.00x

ENTER

TESTMENULOCKCURSOR

If more than one wavelength is present, the color of the trace corresponds with the color of the wavelength number

Trace Information – displays the relative position and power levels at and between the red and green cursors for the currently active trace.

Function Options Menu – displays the on-screen menu options for trace control

Depending upon model number, there could be three or four sets of Function Options Menus. The Enter key ( ) is used to toggle between these menus:

MENU 1 MENU 2

CURSOR SETUP

LOCK

ZOOM

TEST

LOADSAVE

INDEX

MENU 3

EOFEVENTS

VFL

MENU 4

WAVE

NOTE: the WAVE option will only be displayed if more than one wavelength is present

Page 11

SECTION 1: INTRODUCTION

INDICATOR LEDs

CHARGING STATUS – will be lit when charging through a transformer or USB port

GREEN

ORANGE

RED

battery fully charged

battery charging

problem with battery and/or charger; contact OWL for service

STANDBY STATUS

Normal operation blinking

STANDBY solid; press any key to “wake up” the device

GREEN

RED

Fiber #x

AUTO

Page 12

SECTION 2: OTDR TESTING

POWER ON/OFF

POWER ON

Fiber #x

AUTO

Press to power on the OTDR.

When the OTDR has completed startup, the trace area will either be blank, as shown at right, or will show the previously viewed trace.

Continue below for more information about running a new OTDR trace.

POWER OFF

The OTDR may be powered off from any screen by holding .

1550nm

06081m 20221m 24711m

L mx

14140dB0.00

0.00

RFL dBx

-81.00x

ENTER

TESTZOOMLOCKCURSOR

KEY OTDR TRACE PARAMETERS

Below is a descriptive list of key OTDR trace parameters.

WAVELENGTH – range of values: Multimode: 850, 1300, BOTH; Singlemode: 1310nm, 1550nm, BOTH. Allows the user to select one or two wavelength(s) used for testing. Wavelength selection only applies to dual-wavelength OTDR.

INDEX OF REFRACTION – range of values: 1.4000 to 1.6000. To ensure the most accurate distance to events, Index of Refraction (IoR) should be set to the fiber manufacturer’s refractive index specification for the fiber under test. If unknown, set IoR to:

SINGLEMODE – 1.4681 (as this value falls within 99% of the IoR values for most singlemode optical fibers)

MULTIMODE – 1.4920

CAPTURE MODE – range of values: AUTO, SEMI, USER, FILT, LIVE.

AUTO all trace options are determined automatically, except dead zone length.

SEMI same as AUTO except the pulse width is not automatically determined.

USER all user configured options are used when capturing the trace.

FILT same as USER plus the software will filter (smooth) the trace to remove noise. This will help produce a cleaner

trace with less averaging required.

LIVE uses the user-defined trace settings to continuously update the trace on the screen. The trace will be updated

after the user-defined number of averages is completed. The cursors and zoom functions work in LIVE mode. To start and exit LIVE mode, press the TEST function button.

NOTE: if connected to a PC running OWLView software, LIVE mode also updates the software trace area

PULSE WIDTH – range of values: Multimode: 1, 2, 5, 10, 20, 50, 100 m; Singlemode: 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000 m.

Pulse width offers a trade-off between the ability to measure longer cable distances (longer pulse width) versus the ability to see two events that are closely spaced (shorter pulse width). This is otherwise known as an OTDR’s event dead zone (i.e. the minimum distance between two events where they both can be measured).

NUMBER OF AVERAGES – range of values: 256, 512, 1024, 2048, 4096. Increasing the number of averages allows the OTDR to have better display resolution (events are easier to see, especially near the noise level), but also increases the trace acquisition time.

DEAD ZONE LENGTH(m) – range of values: 0 to 1500. Allows the user to enter the length of a dead-zone box (a.k.a. pulse suppressor), if one is being used. If a value is entered for dead zone, the dead zone portion of the OTDR trace will be grayed out. The active portion of the trace will begin where the dead zone ends.

RANGE – range of values: 1, 2, 5, 10, 25, 50, 65, 128 km. Allows the user to manually enter the total length of the trace. NOTE: for best results, this value should be set to the next highest value from the actual length of the fiber under test.

STEP – range of values: 1, 2, 4 m. Trace sample spacing. Smaller steps produce more accurate distance to events, but trace acquisition takes longer.

Page 13

SECTION 2: OTDR TESTING

SETTING TEST PARAMETERS

SET WAVELENGTH

When using a dual-wavelength OTDR, traces can be run at either one or two wavelengths.

To set the trace wavelength(s), press from the trace screen until the following menu options appear:

EOFEVENTS

WAVE

allows the user to select one or both wavelengths to be used for testing. Arrow keys scroll through three options: 1310nm, 1550nm, BOTH.

Press key again to exit.

The selected wavelength(s) will appear at the bottom of the trace screen. If two wavelengths

blue

are present on the trace screen, they will be displayed as either or .

The cursor information below the trace screen applies to the wavelength listed in .

brown

blue

If the OTDR only has one wavelength installed, the WAVE option will not appear.

SET INDEX OF REFRACTION

Wave: 1550nmxxx

1310nm 1550nm

06081m 20221m

24711m

Index 1.4681xxx

AUTO

L mx

14140dB0.00

EOFEVENTS

0.00

AUTO

RFL dBx

-81.00x

ENTER

WAVE

To set the index of refraction, press from the trace screen until the following menu options appear:

INDEX

SETUP

INDEX

LOADSAVE

allows the user to change the index of refraction; setting will appear at the top of the trace screen. Press key again to exit.

Index of refraction should be set to the optical fiber manufacturer’s index of refraction specification. If unknown, use the suggested values below.

Suggested index of refraction values:

SINGLEMODE – 1.4681

MULTIMODE – 1.4920

1310nm 1550nm

06081m 20221m

24711m

L mx

14140dB0.00

0.00

RFL dBx

-81.00x

ENTER

SETUPINDEXLOADSAVE

Page 14

SECTION 2: OTDR TESTING

SETTING TEST PARAMETERS, cont.

SETTING TRACE OPTIONS

To see an additional menu of trace options, press from the trace screen until the following menu options appear:

INDEX

SETUP

LOADSAVE

SETUP

CAPTURE MODE – Range of values: AUTO, SEMI, USER, FILT, LIVE

Capture Mode should be set to AUTO mode for a majority of testing scenarios, so the OTDR can automatically determine the best set of trace parameters based on the fiber link under test.

USER, SEMI, FILT, and LIVE require the user to understand the consequences of setting trace parameters manually.

Only trained fiber optic professionals who are experienced with operating OTDRs should manually set trace parameters. Suggestions for setting these parameters are given below.

opens the TRACE OPTIONS menu

selects the next or previous trace option

changes the value in the selected trace option

TRACE OPTIONS

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXX

CAPTURE MODE

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

PULSE WIDTH

XX XXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXX

NUMBER OF

XX XXXXXXXXXXXXXXXXXXXXXXXXX

SAMPLES

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

DEAD ZONE

XX XXXXXXXXXXXXXXXXXXXXXXX

LENGTH(m)

XX XXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

RANGE

XX XXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXXXXXXXX

STEP

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

SAVE

XXSAVEXXXXQUITXXXXHELPXXXXXXXXXXXX

AUTO

4096

1100

MAXkm

QUIT HELP

PULSE WIDTH – range of values: Multimode: 1, 2, 5, 10, 20, 50, 100 m; Singlemode: 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000 m.

Pulse width should be set to the shortest setting that allows multiple closely-spaced events to be clearly defined, while preventing any of the trace from reaching the noise floor.

NUMBER OF AVERAGES – Range of values: 256, 512, 1024, 2048, 4096. Use the maximum number of averages unless traces are taking to long to acquire.

DEAD ZONE LENGTH (m) – Range of values: 0 to 1500. Set this value to ‘0000’ if not using a dead-zone box (a.k.a. pulse suppressor box). If using a dead-zone box, and you want to highlight the dead-zone box length on the trace, enter the length of the dead-zone box in meters.

RANGE – range of values: 1, 2, 5, 10, 25, 50, 65, 128 km. Set to the next highest value from the actual length of the fiber under test. If fiber length is unknown, select MAX km.

STEP – Range of values: 1, 2, 4 m. Use shortest STEP value for most accurate distance to events, unless trace acquisition time is too long.

Page 15

SECTION 2: OTDR TESTING

STARTING AN OTDR TRACE

Once the OTDR parameters have been set, an OTDR trace can be run. Press from the trace screen until the following menu options appear:

ZOOM

TEST

CURSOR

LOCK

starts an OTDR trace based upon the current OTDR parameters

During the OTDR test (as shown at right):

! the ABORT soft-key appears (used to abort an OTDR trace)

! all soft-keys are disabled

! a bar graph appears at the top of the screen showing the progress of the OTDR test

! dual-wave test will run a separate trace automatically for each wavelength

starting a new trace will replace the old trace on the display with the new trace after a few seconds (depending upon the trace length).

CURSOR NAVIGATION

Once the OTDR trace is complete, the OTDR trace will appear on the screen, and the OTDR information – distance and optical power – will be updated.

TESTING

1550nm

06081m 20221m 24711m

ABORT

Fiber #x

L mx

14140dB0.00x

0.00x

AUTO

RFL

-81.00

two color coded traces will appear on the screen if a dual-wavelength trace was run

Orange

green

green green

red red

Trace information is color-coded. and refer to the cursors. text refers to the

Red

difference between the two cursors. text refers to the perceived end of the fiber link (the position of the dotted line).

CURSOR

LOCK

orange

sets the active cursor – no cursor, , , or both and

locks the active cursor at its current location; unlocks a locked cursor

Blue

When a cursor is locked, a colored padlock symbol will appear next to the appropriate cursor information

ZOOM

sets the ZOOM mode to Horizontal (H) or Vertical (V)

WHEN ONE OR MORE CURSORS ARE SELECTED: moves the cursor(s) left or right; holding these buttons speeds up the cursor movement

WHEN NO CURSOR IS SELECTED: screen pans left and right

WHEN ONE OR MORE CURSORS ARE SELECTED: zooms in or out on the active cursor(s)

WHEN NO CURSOR IS SELECTED: zooms in and out on the center of the screen

1550nm

06086m

20226m

24718m

CURSOR LOCK

L mx

14140dB2.34

ZOOM

3.43

RFL dBx

-81.00

ENTER

TEST

Page 16

SECTION 3: TRACE ANALYSIS

OVERVIEW

This section will provide a basic overview about how to analyze an OTDR trace, and will cover the different types of information that can be gathered from an OTDR trace, including:

– event location;

– fiber length measurement;

– fiber attenuation (loss); and

– reflectance measurement.

proper interpretation of OTDR test results requires a significant amount of technical skill, knowledge, and expertise. Proper trace interpretation is paramount to a successful OTDR test, and the consequences of interpreting a trace incorrectly could

result in a significant amount of network down-time and repair costs.

EVENTS

The primary function of an OTDR is to locate events along the optical fiber. On an OTDR trace, events appear as deviations from an otherwise gently sloping line.

Below is a list of the different events shown in the example at right, including the type of event, and possible interpretations of the data:

Fresnel end of dead-zone box (pulse suppressor)

Fresnel patch panel using flat polish connectors

Backscatter fusion splice or macro-bend

Fresnel patch panel using APC (angled physical contact)

connectors

Fresnel end of fiber link; could also indicate a severe

break where no other events can be detected after the break

the slope of the trace appears to “dip” to a lower level after the event

(events 1, 2, and 3), this could mean one of two things: 1) if the slope of the line changes, the refractive index of the fiber preceding the event is different from the refractive index of the fiber following the event, or 2) if the slope stays the same, then the event is simply a loss-inducing event.

Tall spikes usually indicate flat polish connections or other highly reflective events (breaks, shatters, end of fiber, etc.), while

short spikes usually indicate angled polish connections.

Fiber #x

1550nm

06086m

6126m

24718m

CURSOR LOCK

L mx

0.34

7.43

ZOOM

AUTO

RFL dBx

-34.26

ENTER

TEST

CURSOR PLACEMENT

Proper cursor placement is critical in determining the exact distance to an event, as well as the relative effect the event has on optical power traveling through the event.

red

The cursor should be placed right before the slope of the line begins to spike.

green

The cursor should be placed after the event, at a point where the slope of the line returns to the normal backscatter level.

Cursor information is located below the trace. and cursor information shows the distance to each cursor. The length information shows the distance between the cursors, and the dB number is the dB loss of the event being measured.

Red green blue

blue

Page 17

SECTION 3: TRACE ANALYSIS

FIBER LENGTH MEASUREMENT/LINK LOSS

By placing the cursors at the beginning and ending points of the fiber trace, the distance between the cursors will show a close approximation of the total length of the optical fiber link, as well as a close approximation of the total fiber link loss.

CURSOR PLACEMENT

Proper cursor placement is necessary to determine the end to end length and link loss of an optical fiber link. Refer to the diagram at right when placing cursors for fiber length measurement.

red

The cursor should be placed directly before the first reflective event, before the slope of the line begins to spike.

green

The cursor should be placed directly before the last event, before the slope of the line begins to spike.

Cursor information is located below the trace. and cursor information shows the distance to the cursor, and the information shows the distance and relative power (in dB) between the and cursors.

With cursors placed as shown at right, the length number is the approximate end-to-end length of the fiber link, and the dB number is the

Red

blue

red

blue

green

approximate dB loss of the link (not including the loss of the far end patch panel.)

In this example, the total link length is , and the end-to-end link loss (not including the far end patch panel) is .

24718 meters

7.43 dB

FIBER ATTENUATION MEASUREMENT

Fiber #x

1550nm

24719m

24718m

CURSOR LOCK ZOOM TEST

24718

L mx

AUTO

7.43

RFL dBx

-81.00

ENTER

The fiber attenuation, or loss, for a certain section of an optical fiber link can be determined by placing the cursors at the beginning and end points of the segment of fiber under test.

CURSOR PLACEMENT

Proper cursor placement is necessary to determine the attenuation of a certain segment of fiber.

red

The cursor should be placed at the beginning of the section of fiber under test.

green

The cursor should be placed at the end of the section of fiber under test.

Cursor information is located below the trace. and cursor information shows the distance to the cursor, and the information shows the distance and relative power (in dB) between the and cursors.

With cursors placed as shown at right, the length number is the length of fiber between the cursors, and the dB number is the dB loss of the fiber

blue

Red

blue

red

between the cursors.

In this example, the section of fiber being analyzed has of loss, and is

7040 meters

1.76 dB

Using this information, attenuation of fiber (dB per kilometer) can also be calculated, which can then be compared to the fiber manufacturer attenuation specification. To determine dB/km:

1.76 dB / 7.040 km = 0.25 dB/km

green

L mx

AUTO

1.76

7.43

Fiber #x

1550nm

4086m

11126m

24718m

CURSOR LOCK ZOOM TEST

7040

RFL dBx

-34.26

ENTER

Page 18

SECTION 3: TRACE ANALYSIS

REFLECTANCE MEASUREMENT

The reflectance of a specific event can be determined by placing the cursors on either side of an event. The OTDR will show the reflectance in dB of the highest reflective event between the cursors.

CURSOR PLACEMENT

Proper cursor placement is important when determining the reflectance of a reflective event.

red

The cursor should be placed on the backscatter line directly before the event, on the sloping line before the spike.

green

The cursor should be placed on the backscatter line at the point where the backscatter line returns to its normal slope.

Cursor information is located below the trace. and cursor information shows the distance to the cursors, and the information shows the length, relative power, and reflectance between the and cursors.

With cursors placed as shown at right, the reflectance number is the point

blue

Red

blue

red

green

of highest reflectance (in dB) between the cursors.

NOTE: if multiple reflective events are included between the cursors, the reflectance number will display the most reflective of the events.

In this example, the reflective event being measured has a reflectance of

-34.26

TRACE EVENTS MENU

Fiber #x

1550nm1550nm

4786m

6126m

24718m

CURSOR LOCK ZOOM TEST

1340

L mx

AUTO

0.52

7.43

RFL dBx

-34.26

ENTER

Automatic event location can be performed from the trace screen by accessing the

EVENTS

function option. See Section 1: INTRODUCTION – DISPLAY for more

information about function option menus.

IMPORTANT NOTE: automatic event location is only meant to be used as a guideline for the location of possible events. It is ultimately up to the user to

verify and determine if an event actually exists at that location.

LOCATION the distance to the start of the event

TYPE type of event (reflective, loss, etc.)

REFL reflectance of the event

LOSS loss of the event

moves the cursor up and down in the list of detected events

VIEW

PAGE

DONE

WAVE

returns the user to the trace screen, zoomed in on the selected event

displays the next page of events, if there are more events than will fit on the screen

returns the user to the trace screen

view events for additional wavelength (if available)

1310nm TRACE EVENTS

Location

xxxx

24011m

50539m

VIEW

NOTE: red text in the event table

Type REFL LOSS REFL

Refl

-47.38

-81.00

-17.54

14m

PAGE DONE

indicates that the event fails to

meet user-set thresholds

Loss

0.87

0.21

11.63

WAVE

Once an event has been selected from this menu, each individual event will be marked with a “tic” mark at the top of the trace area. The type of event is denoted by color: black for loss events and for reflective events.

light blue

Page 19

SECTION 3: TRACE ANALYSIS

SATURATION INVERSION

Some highly reflective events are so reflective that they “over-drive” the OTDR circuitry, and cause the OTDR graph to appear as if the trace completely drops out.

Fiber #x

AUTO

This issue is called “saturation inversion”, and only appears when overlyreflective light causes the internal OTDR circuitry to become saturated.

Every OTDR suffers from saturation issues, and many high-end OTDRs include additional circuitry that tries to quench the saturation as it occurs.

However, irregardless of how well an OTDR can quench the saturation, the fact remains that the reflective event requires immediate attention.

TRACE ANALYSIS

The sample trace shown here shows what typical saturation inversion looks like. Four key points have been noted on the trace to explain what is occurring in the OTDR:

1) The red line at the top of the reflective peak shows that the OTDR has been saturated (please note that when the peak has a red line, the reflectance value is not being reported properly);

2) The flat line at the bottom of the trace shows that the OTDR has been “over-driven”, and has inverted the trace;

3) The OTDR has begun its recovery from saturation;

4) The OTDR has fully recovered from saturation, and has returned to its normal backscatter line.

In this example, the reflective event is caused by the interconnection that occurs between two connectors at a patch panel. The connectors on either side of the patch panel are PC (physical contact).

There are several ways to address highly reflective events like this:

a) Thoroughly clean and inspect both connectors for debris or damage;

b) If the connectors appear damaged after thorough cleaning, try re-polishing the connector endfaces;

c) Re-terminate using connectors with better reflectance values (typical values shown here);

PC (physical contact) -30 to -35 dB

UPC (ultra physical contact) -45 to -50 dB

APC (angled physical contact) -55 to -60 dB (or less)

d) Replace the mating sleeve in the patch panel.

Once the inverted event has been fixed, re-test the fiber to ensure the event is no longer overly reflective.

4786m

6126m

24718m

CURSOR LOCK ZOOM TEST

L mx

1340

0.52

7.43

RFL dBx

-30.26

ENTER

ANOTHER HELPFUL TIP

Another helpful tip for mitigating reflectance comes from the Fiber Optic Association (FOA) website:

http://www.jimhayes.com/OTDR/otdrs_d.htm

found under the section titled This "Trick" Can Help. This tip refers to the use of index-matching fluid between connectors to help eliminate the air gap causing the overly reflective event.

Page 20

SECTION 4: TRACE STORAGE

STORED READINGS

sets the Function Options Menu to allow access to Data Storage and Setup Menu options. The following soft-keys apply to data storage functions.

SAVE

LOAD

SAVING A TRACE

LOADING A PREVIOUSLY STORED TRACE

SAVING A TRACE

Fiber #x

1550nm

SAVE

06086m

20226m

24718m

AUTO

L mx

14140dB2.34

INDEX

LOAD

3.43

RFL dBx

-81.00

ENTER

SETUP

Traces may be stored in permanent memory for later viewing or download to hard disk for data file retrieval.

From the trace screen, press to enter the fiber name and save the currently

SAVE

displayed trace to memory.

To enter a fiber name, use the arrow keys to highlight the appropriate character on the grid.

<--

SHIFT

SPACE

BACKSPACE

TOGGLE BETWEEN UPPER AND LOWER CASE ALPHABET

FORWARD SPACE

SELECT THE HIGHLIGHTED CHARACTER

DONE

FINISHED ENTERING NAME

Enter fiber name:x x

Fiber #x

ABCDEFGHIJKLM NOPQRSTUVWXYZ 0123456789 : ; <

Use arrows to highlight letter then press the enter key. Tap the power button to abort.

<-- SHIFT SPACE DONE

Page 21

SECTION 4: TRACE STORAGE

LOADING A PREVIOUSLY STORED TRACE

Previously stored traces can be loaded from memory for later on-screen analysis.

The STORED TRACE menu may be accessed two ways:

1)from the Function Options menu on the trace screen, press ; or

LOAD

2) select the STORED TRACES option from the SETUP MENU.

moves the cursor up and down in the list of stored traces

exits the STORED TRACES menu and returns to the trace screen

accesses context-sensitive help

LOAD

OVERLAY

loads the currently selected fiber trace into the trace screen

allows the user to overlay a previously stored trace on top of the currently loaded trace. Only one trace can be overlaid at a time, and the overlay trace is denoted by a dark arrow to the right of the trace information. Press this

button again to clear the overlay status

Trace Namex Date Time

SM-BB-F1-F2:1 SM-BB-F1-F2:2 SM-BB-F1-F2:3 SM-BB-F1-F2:4 SM-BB-F1-F2:5 SM-BB-F1-F2:6

X X X X X X X X X X X

n=1.4681 L=33600 P= 10us S=1m

xx XXXXXX

STORED TRACESx

Trace Parameters

x x x x

ABORT HELP

LOAD

OVERLAY DELETE PAGE

10/05/09 10/05/09 10/05/09 10/05/09 10/05/09 10/05/09

04:16PM 04:17PM 04:19PM 04:21PM 04:24PM 04:27PM

Overlay status column

Download status column

DELETE

gives the user the option: 1) to delete the currently selected fiber trace; 2) to not delete the selected trace; 3) to delete all traces; or 4) delete only traces that have been previously downloaded (see TRACE DOWNLOAD

STATUS below)

PAGE

displays the next page of fiber traces if there are more traces than will fit on the screen

TRACE PARAMETER INFORMATION. Information at the bottom of the STORED TRACES screen shows trace parameter settings used when the trace was taken:

n index of refraction

L fiber length

P pulse width

S step

TRACE DOWNLOAD STATUS. If the trace has already been downloaded to the PC, this trace will be marked by a green checkmark which appears at the right of each trace.

Page 22

SECTION 5: OTDR SETUP

MENU SYSTEM

To access the SETUP MENU, either press or .

NAVIGATING THE MENU SYSTEM

The arrow keys are used to navigate throughout the various menus and help screens in the OTDR. Green selection arrows highlight different menu options.

moves the selection arrows to the next or previous menu option

jumps to the highlighted menu option

returns to the previous menu

exits the menu system

SETUP MENU

The SETUP MENU is the main entry point into the OTDR menu system. Shown below is a tree of menu options.

Each option will be explained in detail on the following pages.

HELP TOPICS

The OWLTrek II includes a built-in help menu that can be accessed from the SETUP MENU. Context-sensitive help can also be accessed from various operational and menu screens throughout the OTDR by pressing the HELP button.

Fiber #x

1550nm

06086m

20226m

24718m

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Enter OTDR operational parameters

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXSELECTXXXXXXBACKXXXXXXXEXIT

OPERATIONS MENU

USER INFORMATION

DISPLAY PREFERENCES

POWER OPTIONS

UTILITIES MENU

STORED TRACES

HELP TOPICS

BACK SELECT EXIT

XXXXXXXXXXXXXXXXXXXXXXX

AUTO

L mx

14140dB2.34

SETUP MENU

3.43

RFL dBx

-81.00

ENTER

TESTMENULOCKCURSOR

Page 23

SECTION 5: OTDR SETUP

SETUP MENU ? OPERATIONS MENU

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Enter OTDR operational parameters

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXSELECTXXXXXXBACKXXXXXXXEXIT

SETUP MENU

OPERATIONS MENU

USER INFORMATION

DISPLAY PREFERENCES

POWER OPTIONS

UTILITIES MENU

STORED TRACES

HELP TOPICS

BACK SELECT EXIT

XXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Enter optical power meter mode

OPERATIONS MENU

OPTICAL POWER METER

TRACE PARAMETERS

OTDR SETUP

EVENTS SETUP

CONFIGURE OPTIONS

SET BACKSCATTER COEFF.

SYSTEM INFORMATION

BACK SELECT EXIT

SETUP MENU ? OPERATIONS MENU ? OTDR SETUP

OTDR CONFIGURATION

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXX

LENGTH UNITS

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXX

FIBER INDEX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXXX

EOF EVENT

XX XXXXXXXXXXXXXXXXXXX XX

THRESHOLD dB

XX XXXXXXXXXXXXXXXXXXXXXXXXXXX

EVENT

XX XXXXXXXXXXXXXXXXXXXXXXX

PASS/FAIL

METERS

1.4681

3.25

OFF

OTDR CONFIGURATION

LENGTH UNITS – options: METERS, FEET Changes the length units displayed on the OTDR trace results screen.

FIBER INDEX – range of values: 1.4000 to 1.6000 Sets the index of refraction (IoR) for the fiber under test. This value determines the speed of light in the fiber under test, and is used to calculate distances on the OTDR trace. If IoR is unknown, use the following suggested values: Suggested index of refraction values:

SINGLEMODE: 1.4681 MULTIMODE: 1.4920

Section 6: Optical Power Meter (OPM) Operation

Section 2: Key OTDR Trace Parameters

SAVE

QUIT HELP

EOF EVENT THRESHOLD – range of values: 3.25 to 9.99 dB End of Fiber backscatter threshold is the required backscatter level prior to an event for that event to be considered as part of the fiber and not an echo. The last event with the required backscatter level is considered the end of the fiber.

EVENT PASS/FAIL – options: ON/OFF When ON, applies the event threshold settings from the EVENT CONFIGURATION setup screen. Events that do not meet event thresholds (i.e. FAIL) will be shown in red font on the EVENTS table.

Page 24

SECTION 5: OTDR SETUP

SETUP MENU ? OPERATIONS MENU

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Enter OTDR operational parameters

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXSELECTXXXXXXBACKXXXXXXXEXIT

SETUP MENU

OPERATIONS MENU

USER INFORMATION

DISPLAY PREFERENCES

POWER OPTIONS

UTILITIES MENU

STORED TRACES

HELP TOPICS

BACK SELECT EXIT

XXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Configure OTDR event parameters

OPERATIONS MENU

OPTICAL POWER METER

TRACE PARAMETERS

OTDR SETUP

EVENTS SETUP

CONFIGURE OPTIONS

SET BACKSCATTER COEFF.

SYSTEM INFORMATION

BACK SELECT EXIT

SETUP MENU ? OPERATIONS MENU ? EVENTS SETUP

EVENT CONFIGURATION

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

REFLECTIVE

XX XXXXXXXXXXXXXXXXXXXXXX

EVENT THRESHOLD dB

XX XXXXXXXXXXXXXXX

LOSS EVENT

XX XXXXXXXXXXXXXXXXXXXXXX

THRESHOLD dB

XX XXXXXXXXXXXXXXXXXXXXX

MAXIMUM

XX XXXXXXXXXXXXXXXXXXXXXXXXX

REFLECTIVITY dB

XX XXXXXXXXXXXXXXXXXX

MAXIMUM

XX XXXXXXXXXXXXXXXXXXXXXXXXX

LOSS dB

XX XXXXXXXXXXXXXXXXXXXXXXXXXX

-77

0.05

-75.0

1.00

EVENTS SETUP

REFLECTIVE EVENT THRESHOLD – range: -58 to -85 dB Sets the minimum event threshold in dB for reflective events. Events must have this much reflectivity before they are marked in the event table. The smallest reflectivity value is limited by the fiber’s currently set backscatter coefficient.

LOSS EVENT THRESHOLD – range: 0.05 to 0.50 dB Sets the minimum event threshold in dB for loss events. Events must fall at least this amount below the backscatter power to be marked in the event table.

Section 6: Optical Power Meter (OPM) Operation

Section 2: Key OTDR Trace Parameters

SAVE

QUIT HELP

MAXIMUM REFLECTIVITY – range: -30.0 to -80.0 dB The maximum reflectivity an event can have before failing.

MAXIMUM LOSS – range: 0.10 to 20.00 dB The maximum loss an event can have before failing.

NOTE: in order for these settings to take effect, remember to turn ON the EVENT PASS/FAIL setting on the OTDR CONFIGURATION screen.

Page 25

SECTION 5: OTDR SETUP

SETUP MENU ? OPERATIONS MENU

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Enter OTDR operational parameters

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXSELECTXXXXXXBACKXXXXXXXEXIT

SETUP MENU

OPERATIONS MENU

USER INFORMATION

DISPLAY PREFERENCES

POWER OPTIONS

UTILITIES MENU

STORED TRACES

HELP TOPICS

BACK SELECT EXIT

XXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXX XXXXXX XXXXXXX xxx

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Configure installed options

OPERATIONS MENU

OPTICAL POWER METER

TRACE PARAMETERS

OTDR SETUP

EVENTS SETUP

CONFIGURE OPTIONS

SET BACKSCATTER COEFF.

SYSTEM INFORMATION

BACK SELECT EXIT

Section 6: Optical Power Meter (OPM) Operation

Section 2: Key OTDR Trace Parameters

SETUP MENU ? OPERATIONS MENU ? CONFIGURE OPTIONS

CONFIGURE OPTIONS

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

FIBER ID TONE:

XX XXXXXXXXXXXXXXXXXX XXEVENT THRESHOLDXXXXXXXXXXXXXXXdB

VISUAL FAULT

XX XXXXXXXXXXXXXXXXXXXX

LOCATOR:

XX XXXXXXXXXXXXXXXXXXXXXXdB

OFF

CONFIGURE OPTIONS

FIBER ID TONE – options: OFF, ON The OTDR can output a 2KHz tone into the fiber that can be used to identify the fiber at the far end using a clamp meter.

Press ENTER when done

XX xxxxxxxxxx

Press for help

xx xxxxxxxxxxxxxxx

VISUAL FAULT LOCATOR – options: OFF, ON, BLINK Red laser that can be used to identify short fiber runs from the far end, or can detect breaks in the near end of the fiber.

Page 26

SECTION 5: OTDR SETUP

SETUP MENU ? OPERATIONS MENU

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Enter OTDR operational parameters

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXSELECTXXXXXXBACKXXXXXXXEXIT

SETUP MENU

OPERATIONS MENU

USER INFORMATION

DISPLAY PREFERENCES

POWER OPTIONS

UTILITIES MENU

STORED TRACES

HELP TOPICS

BACK SELECT EXIT

XXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXX XXXXXX XXXXXXX xxx

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Set fiber backscatter coefficient

OPERATIONS MENU

OPTICAL POWER METER

TRACE PARAMETERS

OTDR SETUP

EVENTS SETUP

CONFIGURE OPTIONS

SET BACKSCATTER COEFF.

SYSTEM INFORMATION

BACK SELECT EXIT

Section 6: Optical Power Meter (OPM) Operation

Section 2: Key OTDR Trace Parameters

SETUP MENU ? OPERATIONS MENU ? SET BACKSCATTER COEFF.

SET BACKSCATTER COEFFICIENT

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

The fiber backscatter coefficient is a normalized measure of the backscatter properties of the fiber and is

the optical fiber.

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXBACKXXXXXXSELECTXXXXXXXEXITXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXBACKXXXXXXSELECTXXXXXXXEXITXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

< Current Trace >

Bns : -76.00

^ UP v DOWN ENTER=DONE

X xxxx x xxxx

UTILITIES MENU

provided by the manufacturer of

XXXXSELECTXXXXXXBACKXXXXXXXEXIT

xxxxxxxxxxxxx

xxxxxxx

xxxxxxxx

xxxxxxxxxxxxxxxx

xxxx

SET BACKSCATTER COEFFICIENT

<backscatter option> – options: Current Trace, (Wave1), (Wave2) Use left and right arrow keys to change value.

Bns – range: -60.00 to -85.00 dB Use up and down arrow to increase/decrease backscatter value.

Backscatter coefficient is a measure of the backscatter properties of the fiber under test, and is provided by the fiber manufacturer.

Backscatter coefficient is important in accurately determining reflectance measurements in the OTDR.

Page 27

SECTION 5: OTDR SETUP

SETUP MENU ? OPERATIONS MENU

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Enter OTDR operational parameters

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXSELECTXXXXXXBACKXXXXXXXEXIT

SETUP MENU

OPERATIONS MENU

USER INFORMATION

DISPLAY PREFERENCES

POWER OPTIONS

UTILITIES MENU

STORED TRACES

HELP TOPICS

BACK SELECT EXIT

XXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Configure installed options

OPERATIONS MENU

OPTICAL POWER METER

TRACE PARAMETERS

OTDR SETUP

EVENTS SETUP

CONFIGURE OPTIONS

SET BACKSCATTER COEFF.

SYSTEM INFORMATION

BACK SELECT EXIT

Section 6: Optical Power Meter (OPM) Operation

Section 2: Key OTDR Trace Parameters

SETUP MENU ? OPERATIONS MENU ? SYSTEM INFORMATION

SYSTEM INFORMATION

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Serial Number:

XX XXXXXXXXXXX

MFG Date:

XX XXXXXXXXXXXXXX

Firmware Version:

XX XXXXXXXXXX

BootLoader Version:

XX XXXXXXXX

PCB Version:

XX XXXXXXXXXXXXXXX

Installed RAM:

XX XXXXXXXXXXXX

Display:

XX XXXXXXXXXXXXXXXX

Lasers:

XX XXXXXXXXXXXXXXXXXX

Options:

XX XXXXX

Trace Count: APD:

XX XXXXXXXXX

Date:

XX XXXXXXXXXXXXXXXXXX

10/08/15

Time:

XX XXXXXXXXXXXXXXXXXX

11:07:25

Temp C:

XX XXXXXXXXXXXXXXXXXXXXXX

H30000

09/21/15

2.01

1.03

2.0H 512KB

ILI9341

1310nm

VFL,TONE (060,060)

5, 248

SYSTEM INFORMATION

Shows information about the OTDR.

The top section contains hardware information about the OTDR.

LASERS – shows the currently installed OTDR laser wavelengths OPTIONS – shows the currently installed optional hardware TRACE COUNT – shows how many traces have been taken with the OTDR DATE – current date (user configurable) TIME – current time (user configurable) TEMP C – current temperature in Celsius

Press the enter key to return to OPERATIONS MENU.

Page 28

SECTION 5: OTDR SETUP

SETUP MENU ? USER INFORMATION

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Enter users name and phone number

SETUP MENU

OPERATIONS MENU

USER INFORMATION

DISPLAY PREFERENCES

POWER OPTIONS

UTILITIES MENU

STORED TRACES

HELP TOPICS

BACK SELECT EXIT

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

BACK SELECT EXIT

XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

USER NAME

USER MENU

USER NAME

USER PHONE

OTDR SETUP

EVENTS SETUP

CONFIGURE OPTIONS

SET BACKSCATTER COEFF.

SYSTEM INFORMATION

XXXXXXXXXXXXXXXXXXXXXXXXX

USER INFORMATION Enter user name:

Enter the name of the person or company who owns the OTDR. This information will appear on test reports.

Up to 16 characters are allowed in the user name entry field.

See the on-screen instructions for help with text entry.

Enter phone number:

Enter the phone number of the person or company who owns the OTDR. This information will appear on test reports.

Up to 13 characters are allowed in the phone number entry field.

See the on-screen instructions for help with text entry.

DISPLAY OPTIONS

Enter user name:

xx xxxxxxxxxxxxxxxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

USER NAME

XXMODE :XXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

ABCDEFGHIJKLM

XXBRIGHTNESS :XXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

NOPQRSTUVWXYZ

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXDIMNESS: XXXXXXXXXXXXXXXXXXXXXXX

0123456789:;<

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Use arrows to highlight letter

XX XX

then press the enter key. Tap

XX XXX

the power button to abort.

XX XXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXTRACE CLIPPING:XXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

<--

XXX<--XXXXSHIFTXXXSPACEXXXXDONEXX

xx xxxxxxxxxxxxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXMODE :XXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXBRIGHTNESS :XXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXDIMNESS: XXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XX XX XXX XX XXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXTRACE CLIPPING:XXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXX<--XXXXSHIFTXXXSPACEXXXXDONEXX

SHIFT SPACE

DISPLAY OPTIONS

Enter phone number:

XXX-XXX-XXXX

ABCDEFGHIJKLM NOPQRSTUVWXYZ 0123456789:;<

Use arrows to highlight letter then press the enter key. Tap the power button to abort.

<--

SHIFT SPACE

DONE

Page 29

SECTION 5: OTDR SETUP

SETUP MENU ? DISPLAY PREFERENCES

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Setup display options

SETUP MENU

OPERATIONS MENU

USER INFORMATION

DISPLAY PREFERENCES

POWER OPTIONS

UTILITIES MENU

STORED TRACES

HELP TOPICS

BACK SELECT EXIT

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXSAVEXXXXQUITXXXXHELPXXXXXXXXXXXX

DISPLAY OPTIONS

MODE

DIMNESS

BRIGHTNESS

SPEAKER

TRACE CLIPPING

REMOVE TAILS

SAVE

FLIP

063

255

QUIT HELP

MODE – options: FLIP, PORTRAIT, LANDSCAPE Sets the orientation of the LCD display. FLIP LCD automatically alternates between portrait and landscape modes based upon the physical orientation of the

OTDR PORTRAIT display is always in portrait mode LANDSCAPE display is always in landscape mode

DIMNESS – range: 25 to 125 Sets the level of the LCD backlight during power saving mode. Range of values are 25 (dimmest) to 125 (brightest). NOTE: higher values require more battery power

BRIGHTNESS – range: 150 to 255 Sets the level of the LCD backlight during normal operation. Range of values are 150 (dimmest) to 255 (brightest). NOTE: higher values require more battery power

SPEAKER – options: ON, OFF Toggles the internal speaker either ON or OFF.

TRACE CLIPPING – options: ON, OFF Toggles trace clipping mode either ON or OFF.

On a normal OTDR trace, as the sloping line of the trace approaches the noise floor of the OTDR, the trace starts becoming less smooth, making events harder to see near the end of the trace. Trace clipping is a method that “clips” the top of the most reflective peaks, in order to draw the sloping line away from the noise floor. This effectively smooths out the trace, allowing smaller events to be more easily detectable.

While trace clipping is ON, reflectance measurements of clipped events are not affected.

REMOVE TAILS – options: ON, OFF Toggles detector tail removal either ON or OFF.

When ON, improves trace accuracy by running an additional trace at a lower APD bias voltage. Comparing the two traces reduces the APD saturation tails that follow highly reflective events, but at the expense of slightly reduced backscatter levels and increased trace acquisition time.

Page 30

SECTION 5: OTDR SETUP

SETUP MENU ? POWER OPTIONS

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Setup power saving options

SETUP MENU

OPERATIONS MENU

USER INFORMATION

DISPLAY PREFERENCES

POWER OPTIONS

UTILITIES MENU

STORED TRACES

HELP TOPICS

BACK SELECT EXIT

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXXXX

DIM TIME

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXX

STANDBY TIME

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXXXX

OFF TIME

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Times in minutes

x xxxxxxxxxxxxxxxxxxxxxx

(0=disable)

SAVE

POWER OPTIONS

xxxxxxxxxxxxxxxxxx

QUIT HELP

Power options activate after certain periods of inactivity.

DIM TIME – range: 1 to 250 Sets the time (in minutes) before the display will enter DIM mode.

STANDBY TIME – range: 2 to 250 Sets the time (in minutes) before the OTDR will enter STANDBY mode.

OFF TIME – range: 3 to 250 Sets the time (in minutes) before the OTDR will power off.

Page 31

SECTION 5: OTDR SETUP

SETUP MENU ? UTILITIES MENU ? SET SYSTEM CLOCK

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

OTDR utilities menu

SETUP MENU

OPERATIONS MENU

USER INFORMATION

DISPLAY PREFERENCES

POWER OPTIONS

UTILITIES MENU

STORED TRACES

HELP TOPICS

BACK SELECT EXIT

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Set real time clock

XXXXSELECTXXXXXXBACKXXXXXXXEXIT

UTILITIES MENU

SET SYSTEM CLOCK

SET APD BIAS

FORMAT DATA FLASH

FACTORY RESET

MANUFACTURER SETUP

PROGRAM CPLD

HELP TOPICS

BACK SELECT EXIT

Set System Clock

Sets the current time and date in the OTDR.

Trace time and date are a part of the stored trace information and appear on test reports.

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXDIM TIME:XXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXOFF TIME: XXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXSPEAKER :XXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXTRACE CLIPPING:XXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXSAVEXXXXQUITXXXXHELPXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

POWER OPTIONS

Enter Date (MM/DD/YY)

06-25-10

Enter Time (HH:MM:SS)

02:52:21:PM

QUIT

SET

Page 32

SECTION 5: OTDR SETUP

SETUP MENU ? UTILITIES MENU ? SET APD BIAS

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

OTDR utilities menu

SETUP MENU

OPERATIONS MENU

USER INFORMATION

DISPLAY PREFERENCES

POWER OPTIONS

UTILITIES MENU

STORED TRACES

HELP TOPICS

BACK SELECT EXIT

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

BACK SELECT EXIT

XXXX XXXXXX XXXXXXX xxx

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Set avalanche photodiode bias voltage

Set APD Bias

Sets the high voltage bias of the avalanche photodiode.

UTILITIES MENU

SET SYSTEM CLOCK

SET APD BIAS

FORMAT DATA FLASH

FACTORY RESET

MANUFACTURER SETUP

PROGRAM CPLD

HELP TOPICS

SETTING APD BIAS VOLTAGE

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXX XXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

SET SYSTEM CLOCK

SET APD BIAS

BIAS VOLTAGE % : 54

UTILITIES MENU

HELP TOPICS

SELECT BACK EXIT

XXXX XXXXXX XXXXXXX

Page 33

SECTION 5: OTDR SETUP

SETUP MENU ? UTILITIES MENU ? FORMAT DATA FLASH

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

OTDR utilities menu

SETUP MENU

OPERATIONS MENU

USER INFORMATION

DISPLAY PREFERENCES

POWER OPTIONS

UTILITIES MENU

STORED TRACES

HELP TOPICS

BACK SELECT EXIT

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXX XXXXXX XXXXXXX xxx

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Formats Data Storage - This will erase all stored traces

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXSELECTXXXXXXBACKXXXXXXXEXIT

UTILITIES MENU

SET SYSTEM CLOCK

SET APD BIAS

FORMAT DATA FLASH

FACTORY RESET

MANUFACTURER SETUP

PROGRAM CPLD

HELP TOPICS

BACK SELECT EXIT

FORMATTING DATA FLASH

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

SET SYSTEM CLOCK

SET APD BIAS

% COMPLETE : 30

UTILITIES MENU

HELP TOPICS

SELECT BACK EXIT

XXXX XXXXXX XXXXXXX

Format Data Flash

Initializes the internal trace storage memory. This option will erase all stored traces, and should only be used in cases where the file system has become corrupted.

Page 34

SECTION 5: OTDR SETUP

SETUP MENU ? UTILITIES MENU ? FACTORY RESET

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

OTDR utilities menu

SETUP MENU

OPERATIONS MENU

USER INFORMATION

DISPLAY PREFERENCES

POWER OPTIONS

UTILITIES MENU

STORED TRACES

HELP TOPICS

BACK SELECT EXIT

Factory Reset

Restores user settings to factory defaults.

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXX XXXXXX XXXXXXX xxx

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Reset to factory defaults

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXSELECTXXXXXXBACKXXXXXXXEXIT

UTILITIES MENU

SET SYSTEM CLOCK

SET APD BIAS

FORMAT DATA FLASH

FACTORY RESET

MANUFACTURER SETUP

PROGRAM CPLD

HELP TOPICS

BACK SELECT EXIT

FORMATTING DATA FLASH

* WARNING *

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

SET SYSTEM CLOCK

SET APD BIAS

This will restore all

user settings to factory

defaults. Proceed?

HELP TOPICS

XXXXSELECTXXXXXXBACKXXXXXXXEXIT

YES

Page 35

SECTION 5: OTDR SETUP

SETUP MENU ? STORED TRACES

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXX XXXXXX XXXXXXX xxx XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

View, load, and delete stored traces

SETUP MENU

OPERATIONS MENU

USER INFORMATION

DISPLAY PREFERENCES

POWER OPTIONS

UTILITIES MENU

STORED TRACES

HELP TOPICS

BACK SELECT EXIT

Trace Namex Date Time

SM-BB-F1-F2:1 SM-BB-F1-F2:2 SM-BB-F1-F2:3 SM-BB-F1-F2:4 SM-BB-F1-F2:5 SM-BB-F1-F2:6

X X X X X X X X X X X

n=1.4681 L=33600 P= 10us S=1m

xx XXXXXX

STORED TRACESx

10/05/09 10/05/09 10/05/09 10/05/09 10/05/09 10/05/09

x x x x

ABORT HELP

LOAD

OVERLAY DELETE PAGE

04:16PM 04:17PM 04:19PM 04:21PM 04:24PM 04:27PM

STORED TRACES

See Section 4: TRACE STORAGE for more information on working with currently stored OTDR traces.

Page 36

SECTION 6: OPERATION/MAINTENANCE

OPTICAL POWER METER (OPM) OPERATION

Some models of OWLTrek II OTDRs contain an optical power meter port, allowing users to measure optical power and optical loss (when used with an external light source).

These models include a duplex LC connector, one side for the OPM and one side for the OTDR.

OPERATING THE OPM

Press the Enter key ( ) until the MENU function option appears.

EOFEVENTS

VFL

Press the MENU soft key to enter the SETUP MENU.

Highlight OPERATIONS MENU, then press to continue.

Highlight OPTICAL POWER METER, then press to continue.

The optical power meter display shows current optical power readings in dBm and dB, and the currently selected wavelength.

UNDER incoming optical power is too low to be measured OVER incoming optical power is too bright to be measured

WAVE

changes the currently selected wavelength. Calibrated wavelengths include:

850, 980, 1300, 1310, 1490, 1550, and 1625nm.

ZERO

when an external test light source is connected, sets a reference point for the currently selected wavelength.

UNITS

toggles the measurement units between dBm and dB.

EXIT

returns to the OPERATIONS MENU.

OPTICAL POWER METER

-13.45 dBm 1310nm

ZEROWAVE

UNITS

EXIT

Page 37

SECTION 6: OPERATION/MAINTENANCE

VISUAL FAULT LOCATOR (VFL) OPERATION

The OWLTrek II OTDR contains a visual fault locator port used for quick troubleshooting of optical faults close to the near-end of the optical fiber under test.

The 2.5mm universal VFL port is located on the left-hand side on the top of the OTDR.

OPERATING THE VFL

Press the Enter key ( ) until the VFL function option appears.

EOFEVENTS

VFL

Press the VFL soft key to toggle through the different VFL modes.

The VFL status icon will appear on the trace screen above the trace area as shown at right:

(no icon) OFF

BLINK

Fiber #x

1550nm

06086m

20226m

24718m

L mx

14140

AUTO

2.43x

3.34x

RFL dBx

-81.00x

ENTER

VFLMENUEOFEVENTS

EYE SAFETY PRECAUTIONS

look directly at the output of the VFL, and even limited exposure over time to reflected VFL light can be dangerous

NEVER

to the eye.

For best results if using the VFL for end-to-end fiber identification,

use a piece of paper to diffuse the light exiting the far-end

connector.

Page 38

SECTION 6: OPERATION/MAINTENANCE

FIBER ID TONE OPERATION

The laser output of the OTDR port can be used to produce a 2kHz tone for use with fiber identifiers.

SETTING THE FIBER ID TONE

Press the Enter key ( ) until the MENU function option appears. From the SETUP MENU, follow the menu path below:

SETUP MENU >> OPERATIONS MENU >> CONFIGURE OPTIONS

EOFEVENTS

VFL

From the CONFIGURE OPTIONS menu, highlight the FIBER ID TONE option. FIBER ID TONE has two settings: OFF and ON.

The FIBER ID TONE status icon ( ) will appear on the trace screen above the trace area as shown at right.

CONFIGURE OPTIONS

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX

FIBER ID TONE:

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

VISUAL FAULT

LOCATOR:

Press ENTER when done Press for help

OFF

Fiber #x

1550nm

06086m

20226m

24718m

L mx

14140

AUTO

2.43x

3.34x

RFL dBx

-81.00x

ENTER

VFLMENUEOFEVENTS

Page 39

SECTION 6: OPERATION/MAINTENANCE

LIVE MODE OPERATION

LIVE MODE is an advanced feature that periodically updates the OTDR screen while the OTDR is taking a trace, in order to view events as they happen in real-time.

LIVE MODE OPERATION

Press from the trace screen until the following menu options appear:

INDEX

SETUP

LOADSAVE

opens the TRACE OPTIONS menu

highlight CAPTURE MODE

change the value to LIVE

Press SAVE to return to the trace screen. The function menu should show:

LOCKCURSOR

Press to start LIVE mode. After a few seconds the OTDR

TEST

ZOOM

TEST

screen will acquire its initial trace.

After acquiring its initial trace, the trace screen will begin to update every few seconds.

TRACE OPTIONS

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXX

CAPTURE MODE

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

PULSE WIDTH

XX XXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXX

NUMBER OF

XX XXXXXXXXXXXXXXXXXXXXXXXXX

SAMPLES

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

DEAD ZONE

XX XXXXXXXXXXXXXXXXXXXXXXX

LENGTH(m)

XX XXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

RANGE

XX XXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXXXXXXXX

STEP

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

SAVE

XXSAVEXXXXQUITXXXXHELPXXXXXXXXXXXX

Fiber #x

LIVE

4096

1100

MAXkm

QUIT HELP

LIVE

The frequency of screen updates will depend upon the selected TRACE OPTIONS. Lowering the number of samples and/or

increasing the STEP value will increase the frequency of screen updates, but will also lower the trace resolution.

f the screen does not appear to be changing, the characteristics of

I the fiber are not changing.

When the OTDR is connected to a PC, OWLView software allows users to display LIVE mode on the software trace screen. This

enables users to view real-time trace updates on the large PC monitor in order to better see events that may not be visible on the OTDR LCD display.

To enable LIVE mode in OWLView software:

1) Launch OWLView software;

2) Click “Start Live Mode”

3) If the OTDR is not already in LIVE mode, follow the instructions that appear on the software screen, wait for LIVE mode on the OTDR to begin, then click “Start Live Mode” again.

When LIVE testing is complete, press again to exit LIVE mode.

TEST

1550nm

06086m

20226m

24718m

L mx

14140

2.43x

3.34x

RFL dBx

-81.00x

ENTER

TESTZOOMLOCKCURSOR

Page 40

SECTION 6: OPERATION/MAINTENANCE

MANUALLY SETTING END OF FIBER (EOF) MARKER

The OTDR marks the perceived end-of-fiber event with an dotted line.

orange

However, in certain cases, the “end-of-fiber” event may be mis-marked due to factors such as echoes that occur in the noise area of the trace.

The EOF function gives technicians a way to manually set the EOF marker to the correct position.

SETTING EOF MARKER

Select either one (and only one) of the cursors to be the active cursor (in this example, the

green

cursor is the only active cursor).

Move this active cursor to the actual EOF position. This cursor should be positioned on the backscatter immediately where the actual EOF event occurs.

Press the Enter key until the following menu appears at the bottom of the OTDR display:

EOFEVENTS

Press key once. A “SET END OF FIBER” message will indicate that the

EOF

VFL

OTDR is ready to re-position the EOF cursor.

(If the active cursor is not yet set in the correct EOF position, the technician can move the active cursor at this time.)

Fiber #x

1550nm

06086m

20226m

24718m

SET END OF FIBER

14140dB2.43x

AUTO

incorrect end of fiber position

L mx

AUTO

active cursor set to correct EOF

3.34x

RFL dBx

-81.00x

ENTER

VFLMENUEOFEVENTS

Once the active cursor is in the correct EOF position, pre ss key again to

EOF

re-position the EOF cursor.

1550nm

EVENTS

Fiber #x

1550nm

06086m

20226m

24718m

06086m

20226m

24718m

L mx

14140dB2.43x

L mx

14140dB2.43x

3.34x

AUTO

EOF cursor now in correct position

3.34x

RFL dBx

-81.00x

ENTER

VFLMENUEOF

RFL dBx

-81.00x

ENTER

VFLMENUEOFEVENTS

Page 41

SECTION 6: OPERATION/MAINTENANCE

CLEANING THE OPTICAL PORTS

This cleaning procedure applies to the OTDR port on the OWLTrek II OTDR.

Required Accessories:

= Isopropyl alcohol (91% or better) = In-adapter fiber optic cleaning accessories, such as 2.5mm cleaning swabs or 2.5mm HUXCleaner™ = In-adapter fiber optic inspection scope (LCD-based, 200x magnification or greater recommended) = Compressed Air (optional)

Below are procedures for “wet” cleaning and “dry” cleaning. For best results, a combination of these cleaning methods is recommended.

IMPORTANT SAFETY NOTE: WHEN INSPECTING AN OPTICAL PORT, NEVER LOOK DIRECTLY OR INDIRECTLY

INTO THE PORT WITHOUT SUFFICIENT EYE PROTECTION. THE OPTICAL PORT MAY BE ENERGIZED WITH POWERFUL INVISIBLE RADIATION THAT IS HARMFUL TO THE HUMAN EYE.

INVISIBLE LIGHT IS ESPECIALLY DANGEROUS SINCE THE EYE IS NOT AWARE OF EXPOSURE TO HARMFUL

INVISIBLE ENERGY, AND BECOMES INCREASINGLY DANGEROUS WITH PROLONGED EXPOSURE.

TO AVOID ACCIDENTAL EXPOSURE TO OPTICAL ENERGY, IT IS HIGHLY RECOMMENDED TO POWER OFF

EQUIPMENT BEFORE INSPECTING OPTICAL PORTS.

IT IS ALSO HIGHLY RECOMMENDED TO USE AN LCD-BASED FIBER INSPECTION SCOPE, WHICH CAN INSPECT

OPTICAL PORTS AND FIBER ENDFACES WITHOUT EXPOSING THE EYE TO HARMFUL OPTICAL RADIATION.

“WET” CLEAN PROCEDURE

Wet the tip of a 2.5mm cleaning swab with isopropyl alcohol.

Carefully insert the wet tip of the swab into the optical port.

Clean out the optical port according to the directions provided with the swabs.

Blow dry the optical port with the compressed air. If

compressed air is not available, allow 2 minutes for the alcohol to evaporate.

If the port is still dirty, another round of cleaning will be necessary. You may also want to use a combination of “wet” and “dry” cleaning to achieve best results.

“DRY” CLEAN PROCEDURE

Carefully insert a dry 2.5mm cleaning swab or a

2.5mm HUXCleaner™ into the optical port.

Clean out the optical port according to the directions that came with the cleaning accessories.

Inspect the optical port with the in-adapter fiber optic inspection scope to ensure the port is clear of

obstructions.

Inspect the optical port with the in-adapter fiber optic inspection scope to ensure the port is clear of

obstructions.

If the port is still dirty, another round of cleaning will be necessary. You may also want to use a combination of “wet” and “dry” cleaning to achieve best results.

Page 42

SECTION 7: OWLVIEW FOR OTDR SOFTWARE

OVERVIEW

OWLView for OTDR is a software program that is included free of charge with every OWLTrek II OTDR.

Primary functions of this software include:

– Downloading stored traces from OWLTrek II OTDRs and saving traces in native .OTD format

– View and analyze traces

– Export stored traces to SOR format (version 2)

– Import SOR files (that were previously exported with OWLView)

– Print stored traces

– View traces in real-time while OTDR is set into Live Mode

– Update firmware in OWLTrek II OTDRs

– View helpful PDF and video documentation

INSTALLING OWLVIEW FOR OTDR SOFTWARE

OWLView for OTDR can be installed onto a Windows PC or laptop from the supplied USB flash drive, or can be downloaded form OWLs website. This installation will also install the appropriate USB driver.

INSTALLING FROM USB FLASH DRIVE

1) Insert USB flash drive into a USB port on the PC or laptop (there may be a

2) Using My Computer, browse to the drive letter created when the flash drive

3) Double-click the drive letter to view the contents of the USB flash drive

4) Double-click the LaunchCD installation program

5) Click “Install OTDR USB Driver/OWLView Software button to begin the program installation.

Follow the on-screen instructions to complete the installation.

short delay while the computer installs the flash drive hardware and assigns a drive letter to the flash drive)

Depending upon computer configuration, the flash drive may or may not run the installation program automatically

– If the installation program runs automatically, skip to Step 5.

– If the installation program does not run automatically, continue to Step 2.

was inserted (drive letter may vary for different PC configurations)

INSTALLING FROM WEBSITE

1) Browse to OWLs website at the following location:

http://owl-inc.com/literature/sub/htm/otdr/owlview.htm

2) Click the “OWLView for OTDR Software” link to download the software.

3) Once the software in downloaded, double-click on the installation program.

Follow the on-screen instructions to complete the installation.

Page 43

SECTION 7: OWLVIEW FOR OTDR SOFTWARE

LAUNCHING THE SOFTWARE

For Windows operating systems up to Windows 7:

For Windows 8:

Start 4 Programs 4 OWL 4 OWLView for OTDR 4 OWLView for OTDR

Click Start icon. If there is no OWLView for OTDR panel, access the Apps menu.

QUICK-LAUNCH PANEL

When OWLView software is launched, a quick-launch panel appears (as shown at right).

This panel contains three main sections:

1) traditional menu-based functions;

2) frequently-used Common Actions; and

3) recently opened trace files.

OPERATING THE SOFTWARE

DOWNLOADING TRACES FROM OTDR

1) Connect the OTDR to the PC using the supplied USB download cable.

NOTE: if prompted to install new hardware, follow the on-screen directions to complete the USB driver installation.

2) Trace download can be initiated two ways:

– Common Actions: “Download Trace(s) from OTDR”

– File menu: Download Traces...

3) The dialog box (similar to the one at right) will appear with a listing of the OTDR

4) Once traces are selected, click Download to initiate the download process.

Stored traces will automatically be saved in “My Documents” in the “OTDR Traces” subfolder

traces that have not yet been downloaded to a PC.

NOTE: to view all traces stored in the OTDR, check the box next to “Show previously downloaded traces”.

Select the traces to download by checking the box next to the traces.

To download all the displayed traces, check the “Select / Deselect All” box.

Page 44

SECTION 7: OWLVIEW FOR OTDR SOFTWARE

OPERATING THE SOFTWARE, CONT.

OPENING A STORED TRACE

1) From the trace screen, click File, Open...

The dialog box will open up to the default directory. If the traces are stored elsewhere on the PC, browse to that directory.

2) Highlight the trace name to be viewed and click “Open”, or double-click on the trace name.

The selected trace will appear in the software screen.

NOTE: only one trace may be viewed at a time.

SAVING TRACES

There are two menu options for saving traces. Traces can only be saved from the trace screen:

1) File, Save... saves the trace with the same file name in the same location.

NOTE: the File, Save... option will be disabled (”grayed out”) unless information has been added to Miscellaneous Info

2) File, Save As... allows the user to save the trace with a different file name and/or in a different location.

PRINTING TRACES

To print the currently viewed trace:

1) Click File, Print...

2) Select the printer from the “Print” dialog box

3) Click Print

NOTE: the printout will print exactly what is shown in the trace area; i.e. if the trace was zoomed in on, only the part of the trace that is zoomed in on will print. Clicking File, Print Preview will show a preview of the trace printout.

Consult the Zoom In/Out section in this manual for more information about viewing the complete trace in the trace area.

PRINTING MULTIPLE TRACES

NOTE: printing multiple traces must be activated from the Common Actions screen. Close all traces before attempting to print

multiple trace reports.

1) From the “Common Actions” screen, click the Print Multiple Reports hyperlink

2) Browse to the folder where the trace files to be printed are located

NOTE: all the traces to be printed simultaneously with this function must be located in the same location.

3) Select all of the traces to be printed

NOTE: hold the SHIFT key to select/deselect a range of traces; hold the CTRL key to select/deselect traces one by one; or press CTRL+A to select all traces in the folder. When using CTRL+A, de-select any additional folders that may have been highlighted.

4) Click Open to begin the print job

NOTE: when printing a large number of traces at once, a warning screen may appear. It is recommended to limit print jobs to less than 240 traces at a time.

Page 45

SECTION 7: OWLVIEW FOR OTDR SOFTWARE

OPERATING THE SOFTWARE, CONT.

CLOSING TRACES

To close the currently viewed trace:

1) Click File, Close

WORKING WITH SOR FILES

OWLView software can export native .OTD files into an industry-standard file format called SOR version 2. Non-OWL trace viewing software may be able to open these SOR files for trace comparison.

EXPORT SOR FILES

To export the currently viewed trace into SOR format:

1) Click File, Export SOR file...

2a) If the trace contains one wavelength, browse to the folder where the SOR file should be stored, rename the file if necessary,

2b) If the trace contains two wavelengths, a separate

then click Save

SOR file will be created for each wavelength.

A dialog box will appear allowing the user to choose a directory, as well as a different filename for the two different SOR files to be created.

Click Export to save the files.

BATCH EXPORT SOR FILES

OWLView contains a function that allows a large number of .OTD files to be exported simultaneously. However, this function is limited to traces with one wavelength only. Dual-wavelength traces must be exported one at a time.

1) From Common Actions, click the Batch Convert to SOR hyperlink

2) Browse to the folder where the SOR files will be stored

3) Click Open

IMPORT SOR FILES

NOTE: only SOR files exported with OWLView software can be imported with this function.

1) Click File, Import SOR File...

2) Browse to the folder that contains the SOR file to be imported

3) Click Open

Page 46

SECTION 7: OWLVIEW FOR OTDR SOFTWARE

WORKING WITH TRACES

BUTTON CONTROLS

123412341

PAN

Click and drag

using the

mouse will pan

the trace

screen

up/down and

left/right

RECTANGLE

ZOOM

Drag a

rectangle on

the trace

screen to

automatically

zoom into the

area viewed in

the rectangle

1234 1234

ZOOM IN

Click to zoom

in on the trace

screen in small

increments

1234 1234

ZOOM OUT

Click to zoom

out on the trace

screen in small

increments

FIT TO

SCREEN

Resets the

trace screen to

full zoom out

THUMBNAIL VIEW

Shows a small thumbnail of the overall OTDR trace

TRACE DETAILS

Contains information about the trace parameters used for the OTDR trace:

Name Name of trace entered when trace was stored

SHOW/HIDE

CURSORS

Shows or hides

the cursors

used for trace

analysis

DOWNLOAD

TRACES

Download

traces from the

OTDR

1234 1234

LIVE MODE

View the OTDR

trace in real-

time as it

changes on the

OTDR itself

(more on this

function later in

the manual)

Wavelength (81) First test wavelength

Wavelength (82) Second test wavelength (if applicable)

Index of Refraction (81) Index of refraction for first wavelength

Index of Refraction (82) Index of refraction for second wavelength (if applicable)

Pulse Width Shown in nanoseconds (pulse width in OTDR is shown in meters; conversion factor is 10ns per meter)

Number of Averages Sampling rate

Fiber type Type of fiber tested

Date of Test Date that the fiber was tested

Trace Length Shows the total trace length, including the noise area of the trace

Page 47

SECTION 7: OWLVIEW FOR OTDR SOFTWARE

WORKING WITH TRACES, CONT.

TRACE SCREEN

Shows the following information:

OTDR trace(s). Each wavelength is assigned a different color

Wavelength legend. Indicates the color of each wavelength trace.

Events. Corresponds to the event numbers in the event table.

Distance. Shown in either meters or feet on the X axis.

Power level. Shown in dB on the Y axis; 0 dB (a.k.a. origin) can be set to either top or bottom of Y axis.

Cursors. When cursors are activated, they will appear on the trace screen as red and green vertical lines.

EVENT TABLE

Shows the follo wing information:

Event #. Shows the e v e n t n u m b e r ; corresponds to the event number shown on the trace screen.

Event Type. Shows the type of event: reflective, non-reflective, reflective start, reflective end, multiple reflective, etc.

Event Start. Shows the distance to the start of the event (in either meters or feet).

Event End. Shows the distance to the end of the event (in either meters or feet).

Reflectivity. Also called reflectance; indicates how much light reflects back towards the OTDR (applies to reflective events only).

Loss. Also called attenuation; indicates how much loss occurs through the event.

MISCELLANEOUS INFO

Allows users to enter custom information about the trace.

STATUS BAR

Shows current distance and dB at the mouse cursor position.

Page 48

SECTION 7: OWLVIEW FOR OTDR SOFTWARE

WORKING WITH TRACES, CONT.

RECTANGLE ZOOM

The rectangle zoom feature allows the user to drag a rectangle on the OTDR trace to quickly zoom in on the portion of the trace highlighted by the rectangle. Figure 1 below shows an example of rectangle zoom.

Figure 1

The highlighted rectangle in Figure 1 is a click-and-drag operation. Once the mouse button is released, the trace area changes to show the area of the trace produced by the rectangle (see Figure 2 below).

Figure 2

Page 49

SECTION 7: OWLVIEW FOR OTDR SOFTWARE

WORKING WITH TRACES, CONT.

ZOOM IN/OUT

Clicking on the ZOOM IN and ZOOM OUT buttons zoom in and out on the trace at small increments.

SHOW/HIDE CURSORS

Clicking on the SHOW/HIDE CURSOR button either shows or hides the two cursors used for event analysis.

The cursors may be moved manually by click-and-drag.

EVENT ANALYSIS / PROPER CURSOR PLACEMENT

See Section 3: TRACE ANALYSIS for more information about event analysis and proper cursor placement.

TOOLS MENU

UPDATE FIRMWARE

The firmware of the OWLTrek II OTDR may be updated at the user’s location by clicking Tools, Update Firmware 4.

NOTE: see SYSTEM INFORMATION in Section 5 in this manual for information about how to check your OTDR’s current firmware

version.

1) Click Check for Updates... (requires internet access) to download the firmware file from the OWLTrek II OTDR firmware

2) Connect the OWLTrek II OTDR to the PC via the USB download cable.

3) Click From File... then browse to the location where the firmware update file was saved to the user’s PC.

4) Click Open to begin the firmware update

update webpage onto the user’s PC.

CHANGE LENGTH UNITS

Click Tools, Meters to view the length measurements in meters.

Click Tools, Feet to view the length measurements in footage.

The cursors may be moved manually by click-and-drag.

INVERT Y AXIS

HELP MENU

The Help menu contains links to helpful videos and PDF files, as well as information about OWLView for OTDR software.

Page 50

SECTION 8: APPENDICES

SPECIFICATIONS

Model #:

Fiber Type: Output Wavelength: Dynamic Range (SNR=1) : Distance Range : Event Dead Zone : Attenuation Dead Zone : Maximum Data Points: Data Point Spacing: Pulse Width: Index of Refraction: Distance Accuracy: Number of Stored Traces:

1: All price shown are in US Dollars (USD). List price is shown for US customers only. Prices outside the US may vary based on individual countries’ import duties and taxes, currency conversion, and other value added charges. 2: Using maximum pulse width 3: Width measured 1.5dB down on each side of a reflective event using 1 meter pulse width 4: Distance from event beginning to within 0.5dB where backscatter resumes using 1 meter pulse width 5: Out to furthest reflective event

Up to 64km: 1 + (distance in meters/10000) / Over 64km: 2 + (distance in meters/10000)

WTO2-M83

Multimode

850 nm

27 dB

12 miles (20 kilometers)

1 meter

1, 2, 5, 10, 20, 50, 100 meters

Maximum trace distance: up to 200 / Minimum trace distance: 3000+

General Specifications

Display Type: High-resolution Color LCD Display Size: 2.8” diagonal Battery Type: Lithium Polymer Battery Life: up to 20 hours normal usage Dimensions: 2.87” x 4.42” x 1.25” Weight: 10 ounces (284 g)

Model #

Visual Fault Locator Specifications

Output Wavelength: 650nm Output Power: 1 mW Operating Mode: CW / Flash

Optical Specifications

1300 nm

29 dB

Singlemode

1550nm

23 dB

2 meters (typical) 5 meters (typical)

64000

1.4000 to 1.6000

1310 nm

28 dB

80 miles (128 kilometers)

Up to 64 km: 1 meter / Over 64 km: 2 meters

1, 2, 5, 10, 20, 50, 100, 200, 500, 1000 meters

Optical Power Meter Specifications

Photodetector: InGaAs Connector: LC Fiber Type: Multimode / Singlemode Wavelengths: 850, 980, 1300, 1310,

Accuracy: ±0.15 dB Resolution: 0.01 dB Measurement Units: dBm / dB Measurement Range: +5 to -50 dBm (typical)

1490, 1550, 1625

(varies with wavelength)

WTO2-S35

Singlemode

1550 nm

27 dB

MAINTENANCE INFORMATION

Repair. Repair of this unit by unauthorized personnel is prohibited, and will void any warranty associated with the unit.

Battery Replacement. The OWLTrek II contains an internal Lithium Polymer battery. If the battery requires service, the device must

be sent in to OWL. Unauthorized attempts to service the battery will void the product warranty.

Cleaning. For accurate readings, the optical connector port on the OWLTrek II and the connector on the patch cable should be cleaned prior to attaching them to each other. Minimize dust and dirt buildup by replacing the dust caps after each use.

Warranty. The OWLTrek II comes standard with a two-year factory warranty, which covers manufacturer defect and workmanship

CONTACT INFORMATION

Address:

Optical Wavelength Laboratories, Inc. Internet: N9623 US Hwy 12 Whitewater, WI 53190 OWL-INC.COM

Phone:

262-473-0643