TTI FTE-7000A User Manual

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Page 1

FTE7000A

Optical Time Domain Reﬂ ectometer

User's Guide

Revision B

05/2014

Information contained in this manual is believed to be accurate and reliable. However, no responsibility is assumed by Terahertz Technologies Inc. for its use nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent rights of Tera her t z Te chn olo gi e s I nc..

The information contained in the publications is subject to change without notice.

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Chapter PAGE

1. Using This Manual.….....…………................................……....................................................….…………………1

2. Safety...................…...................................................…….………..............................…………………...…………2

3. FTE-7000A Quick Start Guide.................................................................................................…….……..………4

4. Introduction ………….........……................................................................................................…….……...……..6

5. OTDR Inspection and Identiﬁ cation.....................................................................................………………...……7

5.1 Inspection

5.2 Identiﬁ cation and Conﬁ guration

6. FTE-7000A Depscription…….……….........................................................................................…….......……….8

6.1 OTDR Physical Description/Packaging Instrument Enclosure Front Panel Top Plate

6.2 Home Screen Display

6.3 Power Requirements

6.4 Battery Replacement

7. OTDR Operations............................................……..............................................................................................11

7.1 Key Pad

7.2 Entering OTDR Function

7.3 Icon Deﬁ nitions

7.4 Main OTDR screen

7.5 OTDR Parameter Settings Screen Trace Parameters Event Table/Fib0R-Map Sensitivity Settings Pass/Fail Thresholds Settings Date/Time Settings Exit Parameter Settings Screen

7.6 Auto Test Set IOR Set Wavelength Start Auto Test

7.7 Manual Expert Mode Set IOR Set Wavelength Set Range Set Pulse Width Set Averaging Time Scan

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Chapter

7.8 Construction Mode Open or Create a Project Folder Set Base File Name Set Wavelenghts Start Testing Exit Construction Mode

7.9 Trace Analysis Unit of Measure Zoom Cursor Movement

7.10 Loss Measurements 2 Point Loss dB/km Optical Return Loss Basic Splice Loss Least Square Approximation (LSA)

Table of Contents

(Continued)

PAGE

7.11 Loss Measurement Settings Setting Basic Splice Loss Measurement Areas Splice Loss Adjustment Areas Splice Loss Adjustment Positions LSA Examples

7.12 Event Analysis Enter Event Analysis Threshold Settings Sensitivity Settings Macrobend Analysis Event Analysis Screen Fib-R-Map Event Table Table Deﬁ nitions

8. Project Management............................................................................................................................................29

8.1 Project Management Description Project Management Screen Project Management Menu Project Management File Tab Project Management Edit Tab Project Management View/Help Tabs

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Chapter

8.2 Project Management Operation Create a New Project Open an Existing Project Delete a Project Upload a folder to CertSoft Rename a Project Modify Properties Temporary Modiﬁ cation of Parameters Exit Project Management

9. File Management..................................................................................................................................................33

9.1 File Management Description File Management Screen File Management Menu File Management File Tab File Management Edit Tab File Management View/Help Tab

9.2 File Management Operation Saving a Trace Open/View a Trace Dual Trace Delete a File Upload a Trace to CertSoft Rename a Trace File Exit File Management

Table of Contents

(Continued)

PAGE

10. Video Scope........................…..................................................................….................................…...................36

10.1 Entering Video Scope Function

10.2 Video Scope Display

10.3 Video Scope File/Help Icon Menu Home Quick Save Project Management File Management Help

10.4 Video Scope Operations Icon Menu Grading Rings Pass/Fail Label Brightness

III

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Chapter

10.5 Video Scope Operation Video Probe Tips Viewing/Focusing a Connector Centering a Connector Image Pausing Image Scan Grading Rings Pass/Fail Marking Points of Contamination Exiting Video Scope Operation

10.6 Pass/Fail Criteria Tables Fiber End Face Criteria Table for Angled PC Polished Connectors Fiber End Face Criteria Table for Ultra PC Polished Connectors Fiber End Face Criteria Table for PC Polished Connectors

11. Loss Test Set.......................................…...................................................…..................................…..................41

11.1 Entering Loss Test Set Function

11.2 LTS File/Help Icon Menu Home Quick Save Project Management File Management Help

11.3 Light Source Operation Selecting Light Source Wavelength Selecting Source Modulation

11.4 Power Meter Operation Set Power Meter Wavelength Set Reference Set Measurement Units

11.5 LTS Project Management

11.6 LTS File Management

11.7 Exit Loss Test Set

Table of Contents

(Continued)

PAGE

12. Speciﬁ cations.........................…...................................................…..............................................…..................43

12.1 OTDR Speciﬁ cations

12.2 Power MeterSpeciﬁ cations

12.3 Light Source Speciﬁ cations

13. Repair/Warranty.......................................................................................…..................................…...................44

13.1 Repair Information

13.2 Warranty Information

14. Version Control........................….........................................................................................................................45

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Chapter 1 Using This Manual

This manual contains operation information for the Terahertz Technologies Inc. FTE-7000A Optical Time Domain Reﬂ ectometer. This OTDR may be operated by using the touch scree or the onboard key pad. The touch screen is a resistive style screen and only proper stylus devices should be used when operating the OTDR using the touch screen capability.

This guide is written to instruct operation via the onboard keypad. There will be tips throughout the manual to assist with touch screen operation.

Precautions

Optical time domain reﬂ ectometers are optical instruments that do emit laser radiation and though this level of radiation is not considered a danger, there are safety considerations and certain practices that should be followed.

Please read and follow all warning and caution information noted in this manual.

There are warning s, cautions and n otes post ed throughout th is manual .

Warning

A warning alerts to situations that could cause personal injury.

Caution

A caution alerts to situations that may cause damage to the equipment or produce poor testing conditions resulting in inaccurate test results.

Note

A special annotation that will assist the user with operational features.

Touch Screen Tip

These tips will be found throughout the manual to assist with touch screen operation.

1FTE-7000A User's Guide Rev A 5/2014

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Chapter 2 Safety

Chapter 3 of this manual is a quick start guide. Prior to using the quick start guide or operating the equipment in any way, it is highly suggested the user reads all safety information.

The information in this chapter pertains to safety consideration of OTDRs in general.

This product has been designed and tested in accordance with the manufacturer’s safety standards, and has been supplied in a safe condition.

This document contains information that must be followed by the user to ensure safe operation and to maintain the product in a safe condition. Failure to follow these safety warnings and cautions can result in harm to the user or damage to the instrument.

Warning

Personnel should always be aware when working with fiber optic test equipment that active fibers may be present, therefore infrared optical energy may be present.

Warning

Never look directly into the end of a connected fiber optic cable or fiber optic interface of optical test equipment, to do so could expose the user to laser radiation and could result in personal injury.

Warning

To Prevent Fire or Shock Hazard:

Do not install battery types other than those speciﬁ ed by the manufacturer 

Do not use the charger without the batteries installed 

Do not expose the battery charger to rain or excessive moisture 

Do not use the AC adapter when there are signs of damage to the enclosure or cord 

Ensure the correct charger is being used for the local line voltage 

Do not use any other charger than the one provided with this instrument. 

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Chapter 2 Safety

Failure to follow these cautions statements may void the warranty of, or cause damage to this equipment.

Caution

Fiber-optic connectors are easily contaminated or damaged. The connection to the OTDR is physical contact type of connections and dirty or damaged connectors may impair the instruments capabilities at minimum and at worst result in the need to return the OTDR to the factory for expensive repairs. Prior to making any connection to the unit, ensure that all proper cleaning procedures have been followed. Use UPC Finish Connectors Only -- DO NOT insert APC connectors into the optical ports.

Caution

The OTDR is equipped with a protection circuit to avoid damage from live fiber connections The instrument will not operate properly with active fibers. Even with this protection, high power output from EDFA’s or other equipment can damage detectors and should never be connected to the OTDR.

If a live fiber is connected to the OTDR and a scan is attempted, a warning dialog will be displayed as in fig. 2.1. Immediately remove the live fiber from the OTDR and press select to continue testing.

Fig 2.1

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Chapter 3 Quick Start Guide

Press to turn on the OTDR.

Use the directional buttons to highlight the OTDR icon and press to enter the OTDR function.

Connect the ﬁ ber to the appropriate port. (SM or MM OTDR Optical Port)

Press to enter the Menu mode. The menu is displayed at the top of the screen. (To hide the

menu, press the menu button a second time.)

Use the right button to highlight the (wavelength) icon and use to cycle to the desired wave-

length.

If approximate ﬁ ber length is unknown:

ress to have the OTDR start a test using the selected wavelength with the OTDR determining

the most appropriate range and pulse width. (Autotest will set the averaging time to 60sec.)

If approximate ﬁ ber length is known:

et the Wavelength as above and further set the range, pulse width and averaging time.

Press to open the icon menu, use the left or right arrow to highlight the (range) and use

to cycle through the available ranges of 250m, 1km, 4km, 16km, 64km, 128km or 256km.

Use the left or right buttons to highlight the (pulse width) icon and use to cycle through the

available pulse widths of 5ns, 10ns, 30ns, 100ns, 300ns, 1us, 3us, 10us or 20us. (Not all pulse

widths will be available, only pulse widths appropriate for the selected range will be presented)

Press the left or right button to highlight the (average) icon and use to cycle to the averaging

times of Real-Time, 15 seconds, 1, 4, 16 or 40 minutes.

Press to exit the menu mode and hide the menu bar.

Press (Scan) to start a trace. Pressing the again will stop a trace.

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Chapter 3 Quick Start Guide

To operate the cursors, use the left and right buttons. Press the A/B button to toggle between A and B

as the active cursor.

To view the Fib-R-Map and event table, press , use the left and right buttons to highlight the

(schematic view) icon and press .

Note

Alternately, the touch screen may be used to view the trace with the event table or the Schematic view by touching the tabs immediately below the grid scale. The OTDR tab displays the trace with the parameters listed and loss and distance measurements displayed. The Event tab displays the trace with numbered events and an interactive event table, while the Schematic tab displays the trace with numbered events and an interactive schematic view of the data.

To save a trace, touch the button and use the left or right buttons to highlight the (ﬁ le

storage) icon and press . Press , press and with save highlight press . Use the

touchscreen keyboard to enter the ﬁ le name and touch save.

Note

The Quick Save icon may also be use to save the trace. Touching the Quick Save icon will store the trace to the active project folder and use the last base ﬁ le name entered.

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Chapter 4 Introduction

Dear Valued Customer,

Thank you for choosing Terahertz Technologies Inc. for your ﬁ ber optic testing requirements. Our professional staff is available to answer any questions or provide assistance that you require. We, at TTI Inc., strive to provide premier customer care and technical support by providing timely responsiveness and training. We are proud of our quality and high standards and assure you, our customer, the most user friendly and affordable ﬁ ber optic solutions to meet individual needs.

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Chapter 5 Inspection and Identiﬁ cation

5.1 Inspection

Before shipment, this instrument was inspected and found to be in perfect working order and free of defects.

The shipping carton contains the following:

1. OTDR with Protective boot and 4-AA NiMH batteries

2. Universal AC/DC charger with interchangeable mains

3. USB cable

4. Manual and CertSoft software on CD.

5. Set of interchangeable adapters, SC, ST and FC.

5.2 Identiﬁ cation and Conﬁ guration

The instrument’s Model/Part Number, Serial Number and Date of Manufacture are indicated on a label located on the back of the unit. The instrument’s history is ﬁ led at the factory by model/part number and serial number. The unit's serial number is also located on the top plate just above the USB Port.

Fig 5.1

7FTE-7000A User's Guide Rev A 5/2014

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Chapter 6 FTE-7000A Description

6.1 OTDR Physical Package/Description

Instrument Enclosure

The ODM FTE-7000A is packaged in a rugged housing which is further protected with a rubberized boot. Although the front panel is weather resistant, care must be taken to avoid liquids and contaminants around the fragile optical and electrical connectors, and the glass display. Use a mild cleaning agent and soft damp cloth to clean up the panels and the outside case. See the maintenance section to clean the optical connector. NEVER open the instrument for cleaning. Return to the factory for servicing if necessary.

Front Panel

Protective Rubber Boot

Color Touch Screen

Top panel

Position of Second

Optical Port for Quad

Wavelength OTDRs

Power Button

Video Probe Port

Key Pad

Fig 6.1

Unit Serial Number

Power Jack

Battery Charge

Indicator

USB Port

OTDR Port

Fig 6.2

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Chapter 6 FTE-7000A Description

6.2 Home Screen Display

This unit is equipped with a 4” color TFT resistive touch display. All keyboard functions are also executable on the touch screen.

Loss Test Set

If CW source is available, Select this icon to access the CW mode of the light source.

Visual Fault Locator

If unit is equipment with a VFL,

selecting this icon with will cycle

through the CW, Modulate and Off.

Video Scope Icon

Select this icon to open the video scope function.

Optical Time Domain Icon

Select this icon to open the

OTDR function

Firmware Version

Fig 6.3

Touch Screen Tip

The home page icons are highlighted by using the left and right buttons, pressing the select button will open the highlighted function. These icons may also be selected with the touch screen function.

6.3 Power Requirements

The FTE-7000A is equipped with a 100-240V-0.3A input and 9V, 0.67A center positive output universal AC/ DC battery charger. This charger is supplied with interchangeable mains for US, Great Britain, Europe and Australia The unit is shipped with 4-AA NiMH batteries (2700mA hours). Fully charged battery pack will typically enable approximately 4 of use. Fully discharged batteries require 6 - 8 hours of recharging.

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Chapter 6 FTE-7000A Description

6.4 Battery Replacement

To replace the batteries, remove the OTDR from the protective boot by pulling the bottom of the boot down and back allowing the bottom of the unit to be lift out. The battery door is located on the back side of the unit. Replace the batteries with only high quality AA NiMH batteries. Spare battery packs are available with a charging unit for extended battery operation. If you install NiMH batteries that are dead or less than 1 volt each, charge these batteries for one (1) hour before using the OTDR. For proper maintenance, batteries require a monthly recharge.

Warning

To Prevent Fire or Shock Hazard:

Do not install battery types other than those speciﬁ ed by the manufacturer

Do not use the charger without the proper NiMH batteries installed

Do not expose the battery charger to rain or excessive moisture

Do not use the AC adapter when there are signs of damage to the enclosure or cord

Ensure that you are using the correct charger for the local line voltage

Do not use any other charger than the one provided with this instrument.

Failure to follow these caution statements could cause unsafe conditions for the operator and equipment and may void the warranty.

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Chapter 7 OTDR Operation

7.1 Key Pad

Power button, turns the unit On and Off. (Hold for 1 second)

Scan button starts a scan or stops scan.

Fig 6.4

AutoTest button operates range ﬁ nder trace mode. The Range Finder mode momentarily checks test conditions and starts a scan at the wavelength selected by the user but allows the OTDR to determine the pulse width and range parameters.

The Menu button displays and hides the icon menu at the top of the display. It will also back out of most menu selected screens. In the project folder and ﬁ le manager it opens the ﬁ le/edit menu bar. When the menu is displayed at the top of the screen, the focus of the LRUD buttons and the select buttons are on the icon menu and no longer on the trace cursors.

Toggles between A and B as the active cursors.

Selects the Zoom level, each press increments through the levels of 1x, 2x, 4x, 8x, 16x and 32x.

In the menu mode, the select button actuates highlighted item.

While in the trace mode the directional buttons are used to move the cursors. In the Menu mode, the Left and right buttons move between the icons. The up button hides the menu bar or moves cursor up in drop-down menus and the down button opens drop-down menus or move cursor down while in a drop-down menu.

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Chapter 7 OTDR Operation

7.2 Entering OTDR Function

Press the power button the to turn on the OTDR.

Use the LRUD button buttons to highlight the OTDR icon and press the select button to enter the

OTDR function.

7.3 Icon Deﬁ nitions

Home Brings the user back to the home page

Quick Save

Quick Load Recalls the next ﬁ le, chronologically in the current folder.

Project Folder Opens project management

File Manager Opens ﬁ le management

Schematic View/Event Analysis Opens the Fib-R-Map and event analysis view

Settings Opens the parameters setting page.

Splice Zone Setting Turns on LSA/Splice markers

Help Opens the context sensitive help menu

Saves the current trace to the current folder, incremented using last named ﬁ le

Lambda (Wavelength) Cycles through available wavelengths

Pulse Width Cycles through available pulse widths

Range Cycles through available test ranges

Averaging Cycles through averaging times

Index of Refraction Opens the Index of Refraction entry screen

Fig 7.1

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Chapter 7 OTDR Operation

7.4 Main OTDR Screen

"A" Cursor with Position Data

Main Trace Screen

Distance Increment Indicators

"A-B" Cursor Status / Select

Displays the 2pt loss and distance

between the "A" and "B" cursors.

Touching anywhere in this area will

toggle between active cursors.

"B" Cursor with Position Data

Screen Tabs - Touching OTDR,

Events and Schematic tabs change the bottom portion of the display from parameters and measurement data for the OTDR, the event table for Events and the schematic view for Schematic (See Fig 7.3)

Zoom Control

Displays the zoom level, and the values in distance and dB per grid division. Touch anywhere in the area to cycle through the zoom levels.

Test Parameters

Displays test parameters of wave-

length, averaging time, pulse width,

range and ORL. Touch the symbol

or value to cycle through the avail-

able settings.

Touch Screen Tip

Use the touch screen to snap cursors to a position by touching that point along the trace curve. The active cursor will move directly to that point. For finer movement, touch active cursor and drag it to the desired position. Finest movement can be accomplished with the LRUD buttons.

Touch Screen Tip

All the test parameters may be change by touching the value on the touch screen. A long touch in the test parameter section of the screen will open the parameter settings page. A/B cursor, zoom, loss method and scan may all be operated with the touch screen.

Loss Method

Displays splice loss, LSA splice

loss, dB per Km and ORL. Touch

anywhere in this area to cycle

through the loss methods.

Fig 7.2

Scan Button

Displays scan state / status and the charge level of the batteries. Touch

anywhere in the area to start or stop

a scan.

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Chapter 7 OTDR Operation

Trace Screen W/

Measurement Data

Trace Screen W/

Event Table

Trace Screen W/

Schematic view

Fig 7.3

There are three tabs on the main OTDR screen. OTDR, Events and Schematic. Use the OTDR tab to view the trace with the loss and distance measurements. Use the Events tab to view an interactive event table with the trace and numbered events or the Schematic tab to view an interactive schematic view of the events with the trace and numbered events. Selecting an event in the event table or the schematic view will snap the active cursor to that event.

7.5 OTDR Parameter Settings Screen

To access the parameter settings screen press the menu button, use the LRUD buttons to highlight the setting icon and press the select button. An alternate manner to open this screen is to long touch the screen in the test parameter section of the main OTDR screen.

Touch Screen Tip

All operations on this page are accessible via the touch screen. To change parameters or event sensitivity, simply touch the desired value. To set thresholds and time, touch the setting and the block will show yellow. The digits may now be adjusted with the up and down arrows.

Trace Parameter

Settings

Pass/Fail Thresholds

Settings

Event Table/Fib-R-Map Sensitivity Settings

System Date/Time Settings

Fig 7.4

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Chapter 7 OTDR Operation

Trace Parameter Settings

The cursor is the yellow highlighted area. (If the yellow cursor is on a value that is selected, that block will be highlighted green) The blue values are the currently selected values. To move through this section, use the Up/Down buttons to move between parameters and the Left/Right buttons to change parameter values.

There are two additional setting in this area that are not available on the main OTDR screen, distance unit and pulse width unit.

Touch Screen Tip

When using the touch screen feature, only a single touch is required to set trace parameters.

Note

An arrow at the beginning or end of a list indicates additional setting are available. A black square at either end indicated the end of the list.

Event Table/Fib-R-Map Sensitivity Settings

The cursor is the yellow highlighted area. (If the yellow cursor is on a value that is selected, that block will be highlighted green) The blue values are the currently selected values. There are three levels of sensitivity for the event table and Fib-R-Map. The lowest setting possible should be used to help ﬁ lter out any events, that may be caused by short pulse widths, but are not true perturbations in the optical signal

Pass/Fail Threshold Settings

There are four pass/fail thresholds that may be set. Use the LRUD buttons to move between threshold categories, once a categories is highlighted, press select to change the focus of the LRUD buttons. Use the up/down button to make changes to the highlighted digit and the left/right buttons to move the another digit. Once the desired value is entered, press selected again. Continue until all thresholds settings have been completed.

Date/Time Settings

Use the LRUD buttons to highlight the calendar month and press select. Use the left and right buttons to change the month and press select. Use the LRUD buttons, highlight the date and press select.

Use the LRUD to buttons to highlight the clock and press select. Use the up/down buttons to make changes to the highlighted digit and the left/right buttons to move the another digit. Once the desired time is entered, press selected.

Exit Parameter Setting Screen

Press the menu button or touch Return to exit the parameter page.

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Chapter 7 OTDR Operation

Warning

Before connecting a patch cord or fiber under test, be certain the fiber has no active optical sources or instruments connected to the other end. Skin or eye damage could result from other high power sources e.g. EDFAs, or instrument damage could occur voiding the warranty.

Warning

Clean connector thoroughly prior to connection to the appropriate port of the OTDR. Failure to ensure the connectors used with the OTDR are properly cleaned can result in poor launch conditions at the minimum or damage to the optical interface that requires the unit be returned to the factory for repair.

7.6 Auto Test

Auto Test is a useful feature when the approximate length of the ﬁ ber to be tested is unknown. To use the AutoTest, only the IOR and Wavelength need to be set by the user.

Note

To assist in obtaining reliable, consistent measurements, the user should be aware of the Index of Refraction of their fiber. The proper Index of Refraction (IOR) will maximize the distance measurement accuracy. The IOR is proportional to the speed of light in glass compared to the speed of light in a vacuum and can be calculated using the equation IOR = C (the speed of light in a vacuum) / V (the speed of light in fiber). The IOR number can be obtained from the fiber or cable manufacturer or can be calculated with a known length of cable. IOR numbers generally fall around 1.468 SM, 1.486 MM. These are

the default values in the OTDR, but can be adjusted from 1.0 to 2.

default setting on the OTDR.

If this is unknown it is best to use the

Set IOR

It is necessary to have the Index of Refraction set as close as possible to the actual IOR of the ﬁ ber. If this is unknown it is best to use the default setting on the OTDR. To view the current IOR for a wavelength, open the menu use the left/right button to highlight the IOR Icon. Press select and the IOR for the wavelength that is the active will be displayed. To change the IOR, use the on screen QWERTY keyboard to enter the new value and touch save. Each wavelength stores an independent IOR.

Set Wavelength

To select the wavelength, press the menu button to display the menu at the top of the display. Use the LRUD buttons to highlight the Lambda (Wavelength) icon, press select to cycle through the available wavelengths and press the menu button again to hide the menu. Use only the single wavelength settings for the Autotest feature.

Note

The wavelength for dual MM OTDR are 850nm, 1300nm and 850/1300nm, for SM OTDR they are 1310nm, 1550nm and 1310/1550nm. For the Quad wavelength OTDR, they are 850, 1300, 850/1300, 1310, 1550 and 1310/1550nm. The 850/1300nm and 1310/1550nm settings are for Construction Mode operation where the OTDR will test both wavelengths in one operation. Construction mode is covered in section 7.8 of this guide.

Start Auto Test

Press the AutoTest button and the unit will set the average time to short, the appropriate pulse width and range parameters for the ﬁ ber under test.

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Chapter 7 OTDR Operation

Warning

7.7 Manual/Expert Mode

Note

the default values in the OTDR, but can be adjusted from 1.0 to 2.

default setting on the OTDR.

If this is unknown it is best to use the

Set IOR

Touch Screen Tip

All the test parameters may be change by touching the value on the screen to the right of the icon. A long touch in the test parameter section of the screen will open the parameter settings page.

Set Wavelength

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Chapter 7 OTDR Operation

Note

When setting the range and pulse width, it is necessary to keep in mind that it may not be beneficial to use certain pulse widths with some ranges. For this reason not all pulse widths are available for use with all rangers. The chart below the pulse widths that are available with each range.

Pulse Width

5ns 10ns 30ns 100ns 300ns 1μ 3μ 10μ 20μ

250m

1km

4km

16km

Range

64km

128km

256km

 



  

Set Range

To set the range, press the menu button and use the LRUD buttons to highlight the range icon. Use the select button to cycled to the desired range.

Set Pulse Width

To set the pulse width press the menu button and use the LRUD buttons to highlight the pulse width icon. Use the select button to cycled to the desired pulse width

Set Averaging Time

To set the averaging time press the menu button and use the LRUD buttons to highlight the averaging icon. Use the select button to cycle through the averaging times of RT (Real Time), 15, or 60 seconds, 2 or 4, 8 or 20 minutes.

Touch Screen Tip

The above setting may be made with the touch screen by simply touching the appropriate icon in the icon menu to cycle through the available settings. Also the parameter settings page may be opened and all settings may be made on this screen.

Scan

Once all the proper settings have been entered, press the Scan button to take the trace. To stop the trace press the scan button again.

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Chapter 7 OTDR Operation

7.8 Construction Mode

Construction Mode is useful when a large number of ﬁ bers need to be tested with the same settings at multiple wavelengths. This operation mode test a ﬁ ber at two wavelengths, saves the traces and displays them in dual trace mode.

Open or Create a Project Folder

Open project management and highlight the project folder with the proper parameters for the test and where the ﬁ les should be stored. If a new project needs to be established do so using the information from Chapter 8 of this guide.

Set Base File Name

Once the ﬁ le management folder has been opened the ﬁ les folder for that project will be displayed. A base ﬁ le name for the test should be established. Press the menu button to open the ﬁ le management menu, with

the ﬁ le tab highlighted, press the select button or the down button to open the drop-down menu. With save highlighted press select. Use the QWERTY to enter a base ﬁ le name.

When testing in construction mode, ﬁ les will be save in numeric order. For example, if the base ﬁ le name of romecity were entered, the ﬁ rst test in construction mode (If the test were at 1310/1550nm) would be a test at 1310nm with a name of romecity1 and the second test would be the same ﬁ ber at 1550nm with a name of romecity2. The next test would be romecity3 and romecity4.

Once the base ﬁ le name is set, exit the ﬁ le manager by pressing the menu button, pressing select on the ﬁ le tab, using the down button to highlight exit and pressing select.

Set the Wavelengths

On the main trace screen in the OTDR tab the wavelength settings are accessible. There are wavelength settings available here that are not in the parameters setting screen. Dual wavelength units will have one extra setting of a combination of the two wavelengths. For example, if the OTDR is a 1310/1550nm dual wavelength unit, there will be three available selection here. 1310, 1550, and 13/15. The 13/15 is used for constructions mode. This needs to be selected anytime construction mode is to be used. Quad wavelength units will have 850, 1300, 1310, 1550, 85/13 and 13/15, where either 85/13 or 13/15 may be use for construction mode testing. Use the touch screen to cycle through these wavelength settings.

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Start A Test

To start the test connect the ﬁ ber to be tested to the proper OTDR port and press the scan button.

The OTDR will test the ﬁ ber at the shorter wavelength, display the trace and save the ﬁ le. It will then test the ﬁ ber the longer wavelength, The longer wavelength will become the primary trace and the two test will be displayed in dual trace mode.

When the test is complete for the ﬁ rst ﬁ ber, remove the connector from the OTDR, insert the next ﬁ ber to be tested and press the scan button. Continue until all test are complete.

Note

Macrobend tests are automatically conduct with construction mode. Simply enter the Events tab on the OTDR screen or open the event analysis screen through the icon menu. For information about marobend analysis, please refer to section 7.11 of this guide.

Exiting Construction Mode

To exit construction mode, set the wavelength on the trace screen to a single wavelength and start a scan.

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7.8 Trace Analysis

Unit of Measure

The distance unit of measure may be either displayed in Kilometer (Km), Kilo feet (Kf) or Miles (Mi). To set the unit of measure, press the menu button, use the LRUD buttons to highlight the settings icon and press select to open the parameter screen. Use the down button to move the cursor to the D.Unit line in the parameter menu, and use the left or right button to highlight the desired unit of measure and press select. Press the menu button or touch Return to exit the parameter settings page.

Note

When in the Kilo feet (Kf) mode, the distance measurements are displayed in feet for the 820 foot and the 3.2 Kf ranges. All longer ranges have the distance measurements displayed in Kf.

Zoom

There are six zoom levels, 1x, 2x, 4x, 8x,16x and 32X. To change the zoom level, press the zoom button on the keypad. This will cycle through the six levels. When viewing the trace at a zoom level other than 1x, the active cursor is centered on the trace display and when the cursors are moved, the trace moves and the cursor will remain centered.

Cursor Movement

The active cursor is displayed as a solid line and the non-active cursor as a dashed line. Pressing the A/B button on the keypad toggles between the two cursors as the active cursor. The cursors are moved using the left and right buttons.

Touch Screen Tip

Use the touch screen to snap cursors to a position by touching that point along the trace curve. The active cursor will move directly to that point. For finer movement, touch active cursor and drag it to the desired position. the finest movement can be accomplished with the left and right buttons.

7.9 Loss Measurements

2 Point loss

2 Point loss measurements take into account the difference in vertical height between where the A and B cursors cross the ﬁ ber trace to determine loss. This information is located on the main OTDR screen in the A-B section of the trace information as shown in Fig. 7.2. This is a quick method of checking the loss between any two points on a ﬁ ber optic link.

dB/km

The dB/Km (dB/Kft or dB/Mi) loss method takes the 2 Point loss in dB and divides by the distance between the

cursors in Km (Kilometers), Kf (Kilofeet) or Mi (Miles). For accurate dB/.... loss measurements, the two cursors

must be on level backscatter points at least 100m apart (NA will show for distances that are too short).

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Optical Return Loss

This Optical Return Loss (ORL) is separate from the event ORL (Reﬂ ectance) that is displayed in the event analysis under the TYPE header for an individual event. The measurement displayed in the loss measurement area of the main OTDR screen and in the E (End of Fiber) row in the TYPE column is an optical return loss based on the entire link. It is the total accumulated light reﬂ ected back to the source along the telecommunication link.

Basic Splice Loss

Splice Loss method is meant to be used in noisy environments when it is difﬁ cult to attain an LSA area that lays ﬂ at on the back scatter before and after the cursor. This method takes an average of the selected points before and after the active cursor and uses this average to make a good estimation of the event loss. This is an estimation but this method may be more accurate than LSA Splice Loss method in noisy environments.

When using the splice loss It is necessary to set these areas in clear backscatter (areas that do not consist of other events) to acquire the most accurate measurements. For accurate measurements, these areas can not include other events such as reﬂ ective or splice events. Set a cursor at the beginning of an event and set splice loss measurement areas as directed below and as shown in Fig. 7.6 for accurate splice loss measurements. Splice loss measurement areas will follow the undulations of the back scatter line unlike LSA areas.

Least Squares Approximation (LSA)

Least Squares Approximation (LSA) Splice loss method gives the user a visual aid in setting splice loss areas. This method can be more accurate by affording the ability to see the slope of the splice loss areas, however: it can also supply a reading with greater error if not used properly. The splice loss lines must be set to overlay the backscatter of a trace without over lapping any other events. Unlike basic splice lose, LSA measurement areas are drawn as straight lines without regard to the undulations of the back scatter

7.10 Loss Measurement Settings

Touch Screen Tip

The loss measurement/LSA areas may only be set with the key pad. Use the menu to enter the LSA settings function, but once there, use the key pay to adjust the areas as described. It is best to be zoomed in on an event to best set the loss measurement areas.

Setting Splice Loss Measurement Areas

To set the basic splice loss measurement/ LSA ares, the OTDR must be in Splice AVG or Splice LSA mode. To adjust the splice loss areas around the cursors, press the menu button, highlight the LSA icon and press select. The splice lose position indicator will be displayed at splice loss position number 1 as indicated in Fig.

7.6. Use the left and right buttons to adjust the loss measurement area. Press the select button to move the splice lose position indicator to the position number 2, set the area and continue with positions 3 and 4 in the same manner. Press select when done with position number 4 to hide the splice lose position indicator and reset the focus of the keyboard back to the cursors. Press the menu button at any time to escape the splice lose settings sequence.

Note

It is necessary to set these areas in clear backscatter to acquire the most accurate measurements, they must not include other events.

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Chapter 7 OTDR Operation

Splice Loss Adjustment Areas

Active Splice Zone Cursor

LSA Splice Loss

Measurement Areas

Basic Splice Loss

Measurement Areas

Active Splice

Zone Cursor

LSA Splice Loss

Measurements

Splice Loss Adjustment Positions

Splice Loss Position

Fig 7.5

Fig 7.6

Basic Splice Loss

Measurements

Splice Loss Position

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Chapter 7 OTDR Operation

LSA Examples

LSA Set Too Early:

Fig 7.7

LSA Set Too Late:

The LSA area and cursor are set too early. The right most green LSA indicator line is not over laying the back scatter of the trace properly

Proper LSA Setting:

The LSA area and cursor are set too late. The left most green LSA indicator line is not over laying the back scatter of the trace

Fig 7.8

The LSA area and cursor are set properly. The green LSA indicator line is over laying the back scatter of the trace properly.

Fig 7.9

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Chapter 7 OTDR Operation

7.11 Event Analysis

NOTE:

When using the event table and the Fib-R-Map, it is necessary to keep in mind that event analysis provides approximate loss and distance measurements to quickly assist in network evaluation. Automatic detection results are not guaranteed and have their limits, possibly causing erroneous readings or detection failure. User interaction by interfacing with the trace display is recommended for ﬁ nal qualitative and quantitative analysis.

Enter Event Analysis

To enter event analysis, press the menu button and use the left / right buttons to highlight the event analysis icon and press select.

NOTE:

All the entries on the parameter screen are operational with the touch screen. To exit the parameter screen with touch screen function, touch the Return button.

Threshold Settings

There are four threshold settings, EOF, Loss, ORL and Link. (See Fig 7.4) The EOF is not a Pass/Fail threshold, it is used to set a loss value to determine the end of ﬁ ber. IF the EOF threshold is set for 3dB, then the ﬁ rst event that has a loss of 3dB or greater will be deemed the EOF.

To change the threshold settings, press the Menu button, use the left/right buttons to highlight the settings icon and press select. The cursor is the yellow highlighted area. (If the yellow cursor is on a value that is the current selection, that block will be highlighted green.) The setting highlighted in blue is the current setting. Use the LRUD buttons to highlight the desired threshold category and press the select button. Use the up/ down buttons to set the digit, and use the left/right buttons to move to the next or previous digit. Once the desired setting is entered, press the select button. Use the LRUD buttons to move to the next setting until all thresholds have been set as desired. To exit the parameter screen, press the menu button.

Splice, ORL and Link are all thresholds for Pass/Fail purposes.

NOTE:

Thresholds are "pass thresholds", a value entered as a threshold is a passing value.

Examples of these settings are as follows:

Splice: If a 1.00dB splice loss is acceptable, set the threshold to 1.00. If a splice loss of 1.00 is the fail point, set the threshold to 0.99

ORL: If a -50dB reﬂ ectance is acceptable, set the threshold to 50. If -50dB is the fail point, set the threshold to 50.5.

Link: If a 20dB, link loss is acceptable, set the threshold to 20. If 20db link loss is the fail point, set the threshold to 19.5.

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Chapter 7 OTDR Operation

Sensitivity Settings

There are three levels of sensitivity for the event table and Fib-R-Map. (See Fig 7.4) To change the event sensitivity, press the Menu button, use the left/right buttons to highlight the settings icon and press select. The cursor is the yellow highlighted area. (If the yellow cursor is on a value that is the current selection, that block will be highlighted green.) The setting highlighted in blue is the current setting. Use the LRUD buttons to highlight the desired setting and press select. To exit the parameter screen, press the menu button.

The lowest setting possible should be used to help ﬁ lter out any false events that may be caused by short pulse widths, but are not true perturbations in the optical signal. High sensitivity presents events with loss down to approximately 0.1dB, Medium (Md) with events down to approximately 0.2dB and Low (Lo) for event down to about 0.5dB. Longer pulse widths, and averaging help to lower the number of false events. Highest sensitivity settings should only be used for traces with high signal level, low noise, long pulse width and long average.

Macrobend Analysis

Macrobend analysis is performed with the dual trace operation and displayed in the event table. The traces to be compared must have been performed at the same range and the primary trace must be of the longer wavelength.

To conduct a macrobend analysis, open the ﬁ le manager as described in chapter 9. Highlight the ﬁ rst trace to be loaded (the trace of the longer wavelength) and select to open. Open the ﬁ le manager again and highlight the trace to be compared (the trace of the short wavelength), open the drop-down menu under the ﬁ le tab and touch dual or use the up or down buttons to highlight dual and press select. Open the event analysis screen to check for macrobends. If and event on the longer wavelength trace has 0.25db or greater loss than the same event on the shorter wavelength trace, a macrobend event will be generated on the event table, identiﬁ ed by a Macro label in the Type column. This event will immediately follow the event it is related to. For example: If event number one was 5 dB at 1550nm and .5 db at 1310nm, the second event will be blank for location, +4.5dB for splice, blank for 2point and DB/KM. The type ﬁ eld will be listed as Macro.

To exit dual trace and macrobend analysis, simple start a new scan.

Event Analysis Screen

Event Table

Fib-R-Map Schematic View

Trace Parameters

Event Map

Fig 7.10

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Chapter 7 OTDR Operation

Fib-R-Map

Loss Between

Events

Event Location

Event Loss in dB

Event Map

Event Number

Event Type and

Reﬂ ectance Value

System ORL

Link Data

Fig 7.11

Note

The Link is the last item in the schematic view. It is labeled E in the event number position. The loss value just prior to this item is the Link Loss and the Event location above the item is the same as the location of the event deemed the EOF.

Event Table

Pass/Fail

Event Number

EOF Data

Note

Information in the red outlined area is for individual events. Information in the blue outlined area is for the fiber link.

Event Location Event Loss in dB

EOF Location Link Loss

Loss Between

Events

Fig 7.12

dB Per/Km

Between Events

Event Type or Reﬂ ectance Value

System ORL

dB Per/Km

Between Events

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Chapter 7 OTDR Operation

Table Definitions

# Event Number:

Indicates the event in sequence, where the higher the number the further distance from the OTDR the event occurs. “E” (End) which is always displayed in the bottom row is the event determined to be the End of Fiber (EOF).

Pass/Fail, if any one of the thresholds are not met for and event, the P/F column will display a red F. The parameter that failed will also be displayed in red. If all the parameters are met, this column will display a green P. The Pass/Fail threshold for the last event labeled "E" is the loss displayed in the 2POINT column, the link loss threshold.

Km or KF or MI:

Event Location, Km for Kilometer or KF if unit of measure is Kilo-feet MI for mile. This is the distance/location that the event occurs along the ﬁ ber link.

Splice:

Event Loss, is the splice loss (event loss) of the numbered event. (A positive number is the amount of loss and a negative number indicates a gain normally due to mismatched index of refraction.) This is a settable threshold for the Pass/Fail feature. The "E" event will display LINK as this is not an event that would have meaning. The event that is deemed the EOF will normally display a large loss as this loss will be greater than the threshold set to determine the end of the ﬁ ber.

2POINT:

2 Point Loss is the loss measured from the end of the dead zone of the previous event to the beginning of current event. The value in the "E" line of the table for this column is the link loss. The loss from the beginning of the trace to the event determined to be the EOF. This is the value used to determine if the ﬁ ber link passes or fails it's loss threshold.

dB/Km:

dB per Kilometer if in KM and DB/KF if in Kilo-Feet and DB/MI if in mile unit of measure. This is the calculated loss per Km, Kf or Mi from the end of the dead zone of the previous event to the beginning of the current event. The value in the "E" line of the table for this column is the dB Per/KM, Kf or Mi for the total link.

TYPE:

Event Type is the type of event or the ORL measurement. If the event has no reﬂ ection, “splc” will be displayed and if the event contains a reﬂ ection, the event reﬂ ectance value will be displayed. For the last event which is labeled "E" in the # column, the value displayed is the system ORL.

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Chapter 8 Project Management

8.1 Project Management Description

Project Management allows the user to save a set of parameters to be recalled for use at a later time. It also incorporates the ﬁ le management system to save traces to the active project folder. When the OTDR is turned on, the default project is [NONE]. If an existing project is not open or a new one not set, all traces will be saved to the [NONE] folder.

Note

In project and file management screens, the down button opens drop-down menus when and moves the cursor down through the drop-down menus and the up button hides the menu or moves the cursor up through the drop-down menus.

Note

It is necessary to create the project prior to taking a trace as the file will not be available to save after going through the project creation sequence.

Project Management Screen

Project Folder

List

Project

Details/Properties

Fig 8.1

Project Management Menu

The menu for project management may be operated with the touch screen, however, this manual describes the manner of operation with the keypad. To open the menu press the menu button. There are four tabs available, File, Edit, View and Help. Use the left or right buttons to move to a desired tab and use the select or the down button to open the drop-down menus. Pressing the menu button again or the up button will hide the operations menu.

Fig 8.2

Touch Screen Tip

The menu may be pulled down with the stylus the same as the menu on the main trace screen. Once the file menu is open, it is fully operable with the touch screen function.

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Chapter 8 Project Management

Project Management File Tab To open the drop down menu under ﬁ le, with ﬁ le tab highlighted, press

select or the down button. Use the down or up buttons to move through the drop down menu and select to choose and operation. Selecting new will open a new project folder using the current parameter settings. Open will open the highlighted project, dual is not operational in the project management and therefore greyed out, delete permanently removes the highlighted project. (The delete button must be held for at least one second to remove projects.) Once delete is selected, the project and all ﬁ les associated with that project are deleted. Use exit to leave the project manager and return to the trace screen.

Fig 8.3

NOTE:

Once a project is established the settings cannot be permanently changed. They may be changed Temporarily, but the original setting will be defaulted every time the project is opened.

Project Management Edit Tab

To open the drop-down the menu under edit, with the edit tab highlighted, press select or the down button. Use the down or up buttons to move through the drop down menu and press select to choose an operation. Upload is used to transfer ﬁ les to the CertSoft software. Rename allows the highlighted folder name to be modiﬁ ed while maintaining all settings and associated ﬁ les. Properties allows the user to edit the properties displayed at the bottom of the project window.

Fig 8.4

Project Management View and Help Tabs

View offers the user the opportunity to move to the ﬁ le manager from the projects page. With view highlighted, press select or the down button to open the drop-down menu, with the ﬁ les tab highlighted, press select to move to the ﬁ le management page. For onboard help pages, highlight the help tab and press select.

Fig 8.5

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Chapter 8 Project Management

8.2 Project Management Operation

Create a New Project

The parameters that are stored for a project are; range, pulse width, average, wavelength, distance units, pulse width units, event sensitivity and the thresholds. To create a new project, press menu, select the settings icon, set the parameters as required, when all setting are established, use the arrow button to highlight the return button or touch return at any time while in the settings screen. Press the menu button, highlight the project folder icon and press select. With the ﬁ le tab highlighted, press select or the down button to open the drop down menu. Use the down or up buttons to highlight new and press select again. Use the on screen QWERTY keyboard to name the folder and touch save. The folder names are limited to 16 characters.

To enter details about the project, use the up and down buttons to highlight the project that was just created and press the menu button. Use the left or right button to highlight the edit tab, use the down button to highlight properties and press select. Use the up and down buttons to select the desired ﬁ eld to be entered or modiﬁ ed and press select. Use the QWERTY keyboard to enter the information and touch save when complete. Up to 24 characters may be entered for these ﬁ elds. To exit the project screen, press menu, press select, use the down button to highlight exit and press select again.

Open an Existing Project

To open a project, press the menu button, highlight the project folder and press select. Use the up or down buttons to highlight the desires project folder and press select. This will open the ﬁ le management screen listing all the ﬁ les previously stored in this project. All saved traces will now be stored to this project ,until a new project is created or another project is opened.

Delete a Project

To delete a project, with the project to be deleted highlighted, open the ﬁ le drop down menu, highlight delete and press and hold select. Ensure the proper project is selected as once deleted, the folder and ﬁ les cannot be recalled.

NOTE:

Delete must be held for approximately 1 second to complete the delete function.

Upload a Folder to CertSoft

To upload a folder and all it's associated ﬁ les from the OTDR to the computer, open the CertSoft software and ensure the OTDR is connected to the computer with the USB cable.

NOTE:

The two plugs in the top right corner of the OpTrace screen should show as connected and green.

Highlight the project to be uploaded, press menu to open ﬁ le manager menu, use the right button to highlight edit tab, press select or the down button to open the drop down menu and with upload highlighted, press select. The folder with all ﬁ les will be uploaded to the target folder selected on the computer.

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Chapter 8 Project Management

Rename a Project

To rename a project, have the project to be renamed highlighted, press menu, to open the project management menu. Use the left and right buttons to highlight edit tab and press select or the down button to open the dropdown menu. Use the down button to highlight rename and press select. The project name will be displayed with the onboard QWERTY keyboard. Use the keyboard to rename the project and touch save.

Modify Properties

To modify the properties, have the project to modiﬁ ed highlighted. Press menu, highlight edit/properties and press select. The project properties will be displayed, use the up/down buttons to highlight the ﬁ eld to be changed, use the onboard QWERTY keyboard to make the change and touch save. Continue with the changes needed, when compete highlight close and press select.

Use the left and right buttons to highlight edit tab and press select or the down button to open the drop-down menu. Use the down button to highlight properties and press select. The properties list will be display, use the up or down buttons to highlight the property to be modiﬁ ed and press select. The QWERTY keyboard will be displayed with the property information. Press save when done with the change. Continue with the changes needed, when compete highlight close and press select.

Temporary Modification of Parameters

Test parameters may be temporarily changed by selecting new settings, such as wavelength, average time, pulse width, and range directly on the main OTDR screen with the touch screen capabilities or open the parameter settings screen, set the new parameter and save. All subsequent test will use the new settings until the original settings are returned or the folder is reopened resetting the project parameters. To make temporary changes to event sensitivity or thresholds, open the parameters settings page.

Exit Project Management

To exit the project management, press menu, use the left or right buttons to highlight the ﬁ le tab, press select or the down button to open the drop down menu. Use the down button to highlight Exit and press select.

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Chapter 9 File Management

9.1 File management Description

File Management is use to save and recall traces. It operates in conjunction with the projects manager in that if a project folder is open, the ﬁ les saved to and listed in the ﬁ le manager are associated with the open project. When the OTDR is turned on, the default folder is [NONE], therefore, any ﬁ les save without opening a project will be save to the [NONE] folder. Any ﬁ les saved in the scope function will also be associated with the open folder.

File Management Screen

Project Folder

Being Viewed

OTDR Traces

Files List

Trace

Details/Properties

Fig 9.1

File Management File Menu

The menu for ﬁ le management may be operated with the touch screen, however, this manual describes the manner of operation with the keypad. To open the ﬁ le management menu press the menu button.

Fig 9.2

Touch Screen Tip

The file menu may be pulled down with the stylus the same as the menu on the main trace screen. Once the file menu is open, it is fully operable with the touch screen function.

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Chapter 9 File Management

File Management File Drop Down Menu

To open the drop down menu under ﬁ le, with ﬁ le highlighted, press select or press the down button. Use the down or up arrow to move through the drop down menu and press select to open the highlighted operation. The operations are Save, Open, Dual, Delete and Exit. Save stores the current trace, Open displays the trace that is currently highlighted, Dual opens a secondary trace, Delete permanently removes a ﬁ le and Exit closes the ﬁ le management screen.

Fig 9.3

File Management Edit Drop Down Menu

To open the drop down menu under edit, with edit highlighted, press select or press the down button. Use the down or up arrow to move through the drop down menu and press select to choose a highlighted operation. Upload is used to transfer the highlighted ﬁ le to the CertSoft software. Rename allows the highlighted ﬁ le name to be modiﬁ ed. Properties is grayed out and not accessible from this location.

Fig 9.4

File Management View and Help Menu

View offers the user the opportunity to move to the projects management page from the ﬁ le management page. With view highlighted, press select or the down arrow to drop down the view tab and press select to move to the ﬁ le management page. For onboard help pages, highlight the help tab and press select.

Fig 9.5

9.2 File management Operation

Save a Trace File

To save a trace, press menu, highlight the ﬁ le manager icon and press select. Press select or the down button to open the drop down menu and with save highlighted, press select again. The ﬁ le naming window will open and the onboard QWERTY key board will be available. Use the touch keyboard to name the ﬁ le and touch save. The ﬁ le names are limited to 16 characters. This method should be used to set the base ﬁ le name for a group of traces. These ﬁ le names are save exactly as entered. To save ﬁ les with a chronologically numbered sufﬁ x, use the quick save. Quick Save uses the last enter base ﬁ le name.

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Chapter 9 File Management

Open/View a Trace

To open a trace, press the menu button, highlight the ﬁ le folder and press select. Use the up or down buttons to highlight the trace to be viewed and press select.

Dual Trace Mode

Dual trace mode may be used to view and compare two traces. Both traces must be of the same range setting. To utilize dual trace feature, ﬁ rst open the primary trace as you would a normally, by highlighting the trace in ﬁ le management, pressing menu to open the ﬁ le management menu, with ﬁ le highlighted, open the drop-down menu use the down button to highlight dual and press select. The trace opened using the dual feature is the secondary trace and all information displayed is that of the primary trace. To exit the dual trace mode, start a scan with the scan button.

Delete a File

To delete a ﬁ le, with the ﬁ le to be deleted highlighted, press menu or the down button to open the ﬁ le drop down menu, use the down or up buttons highlight delete and press select for at least one second. Ensure the proper ﬁ le is selected as once deleted, the ﬁ le cannot be recalled.

NOTE:

Delete must be held for approximately 1 second to complete the delete function.

Upload a Trace to CertSoft

To upload a trace from the OTDR to the computer, Open the CertSoft software and ensure the OTDR is connected to the computer with the USB cable.

NOTE:

The two plugs in the top right corner of the OpTrace screen should show as connected and green.

Highlight the ﬁ le to be uploaded, press menu to open ﬁ le manager menu, use the right button to highlight the edit tab, press select or the down button to open the drop down menu and with upload highlighted, press select. The ﬁ le will be uploaded to the target folder on the computer .

Rename a Trace File

To rename a trace ﬁ le, have the ﬁ le to be renamed highlighted. Press menu, use the left or right button to highlight edit, press select, or the down button to open the drop-down menu, press the down button to highlight rename and press select. The ﬁ le name will be displayed with the onboard QWERTY keyboard. Use the keyboard to rename the project and touch save.

Exit File Management

To exit the ﬁ le management, press menu, use the left or right buttons to highlight the ﬁ le tab, press select or the down button to open the drop down menu. Use the down button to highlight Exit and press select.

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Chapter 10 Video Scope

10.1 Video Scope Display

To operate the video scope, from the home screen, highlight the Scope icon and press the select button. If a probe is not connected already, connect the VIS300 video probe to the video probe port on the top of the OTDR.

10.2 Video Scope Display

Project Folder

Home Icon

250um Ring

120um Ring

(Yellow)

Contaminant Scale

Pass/Fail Grading Ring Overlay Icon

Quick Save

Pass/Fail

Label Icon

File Manager

Help Icon

Live View/Pause View Indicator

130um Ring

(Green)

25um Ring

Pass/Fail Marker

Brightness

Adjustment Icon

Touch Screen Tip

The icons on the video scope screen are operational with the touch screen feature, though this guide is written using the keyboard whenever it is available.

10.3 Video Scope File/help Icon Menu

The Icons at the top of the display are Home, ﬁ le save, project management, ﬁ le management and Help.

Home

Press the menu button, use the left and right buttons to highlight the home icon and press select to return to the home Screen.

Fig 10.1

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Chapter 10 Video Scope

Quick Save

Press the menu button, use the left or right buttons to highlight the quick save icon and press the select button to store a ﬁ le image of the scope screen in the ﬁ le folder within an active project. Scope ﬁ les will be preceded by a target icon.

Project Management

To open project management, press the menu button, use the left or right buttons to highlight the project management folder icon and press select. Use the project management folder to open the project that the scope images are to be stored. When entering the video scope function, the active folder will be the one lase used in the OTDR or LTS. For more information about the project management system, please refer to Chapter 8 of this guide.

File Management

To op en ﬁ le management, press the menu button, use the left or right buttons to highlight the ﬁ le management icon and press select. Use File management to view a list of saved ﬁ les or to open a stored image. ﬁ le types are identiﬁ ed by a preceding icon. Trace ﬁ les are indicated by a trace icon, LTS ﬁ le by an LTS icon and scope ﬁ les are preceded by scope (target) icon

Help

Press the menu button, use the left and right buttons to highlight the help icon and press select to view the help information.

10.4 Video Scope Operation Icon Menu

The following functions are only available for use when the the video scope is in live scan mode.

Grading Rings Icon

Used to turn on and off the rings that indicate the IEC61300-3-35 grading zones.

by entering the menu mode with the menu button, use the LRUD buttons to highlight the pass/fail grading rings overlay icon and press the select button. Exit the menu mode and use the LRUD buttons to center the image in the rings. Use the appropriate table from below to grade the connector end face. 2, 3, 5 and 10 micron contaminant examples are displayed just below the connect image on the video scope display.

Pass/Fail Label Icon

Used to turn cycle through pass, fail or no grading (off) of the pass/fail indicator. To set the pass/fail indicator, press the menu button, use the left or right buttons to highlight the pass/fail icon and press select to cycle through the pass/fail states.

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Chapter 10 Video Scope

Brightness Icon

Press the menu button, use the left and right buttons to highlight the brightness icon, use the up and down buttons to adjust the brightness level of the display or cycle through the brightness levels by pressing the select button.

10.5 Video Scope Operation

To operate the video scope, from the home screen, highlight the Scope icon and press the select button. If a probe is not connected already, connect the VIS300 Video Probe to the video probe port on the top of the OTDR.

Video Probe Tips

There are a number of video probe tips available. To remove a tip from the Probe, grasp the focusing ring and back the tip retention nut down and pull the tip straight up from the probe. To place a tip on the probe, ensure the lens is clean, slide the tip on to the end of the probe and tighten the tip retention nut. Do not overtighten the retention nut.

Tip Retention Nut

Viewing/Focusing a Connector

With the video scope turned on and the video probe plugged into the OTDR, insert a connector in to universal tip or insert the panel adapter tip into the appropriate port. The scope must be in the Live Scanning mode to make focus adjustments. Use the focus ring to get the connector image as sharp as possible.

NOTE:

To make position adjustments with the LRUD buttons, the unit must not be in menu mode. Menu mode is evident when there is a light blue box positioned around one of the icons. When the touch screen is used to roughly center the connector image, the menu mode is automatically turned off.

Focusing Ring

FTE-7000A User's Guide Rev A 5/201438

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Chapter 10 Video Scope

Centering a Connector Image

Once the image is stable and focused, use the stylus to touch the approximate center of the connector to snap the image near the center of the display and the center of the grading rings. Use the LRUD buttons to ﬁ ne tune the image to the center of the display.

Pausing Image Scan

To freeze an image in position and focus level for inspection, press the scan button. This will pause the at the current position and focus level. Simply press the scan button again to set the operational mode back to live mode for focus and position adjustments

Grading Rings

Turn on or off the grading rings by pressing menu and using the left or right buttons to highlight the grading ring icon and press select. The unit must be in Live Scan mode to turn the rings off or on.

Pass/Fail

Using the pass/fail criteria tables on the next page, determine if the connector passes the IEC61300-3-35 standard. There is a guide to contamination size located at the bottom of the image. To mark a connector as Pass or Fail, enter the menu mode, highlight the Pass/Fail Label icon and press select to cycle through pass, fail, or no grading. This must be done in the Live Scan mode. Once the pass fail status has be marked, the scan may be paused with the scan button and the points of contamination that caused a failure may be marked on the image.

Marking Points of Contamination

To mark the points of contamination the unit must be in paused mode. Pick up the contamination marker by using the stylus and touching the contamination sample size that is required. Touch the image to place the marker. The marker may be ﬁ ne tuned with the stylus to cover the contamination point on the image to be marked. Once the marker is positioned properly, touch the area just below the image that states, "Place marker, touch here to apply" to lock the marker in place. Repeat this as necessary to mark all the points that need to be indicated for the pass/fail status. At this point the image should be save with the Quick Save icon

NOTE:

Marking the points of contamination should be done last, just before saving the image. Once the unit is returned to live mode the markers are removed.

Exiting Video Scope Operation

Enter the menu mode, use the left or right buttons to highlight the Home icon and press select.

Touch Screen Tip

The majority of function and features in the Video Scope are operable with the touch screen. It is not necessary to enter the menu mode when using the touch screen. The menu mode needs to be entered when the focus of the LRUD buttons needs to be taken off the positioning feature and moved to the icon cursor.

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Chapter 10 Video Scope

Pass/Fail Criteria Tables

Fiber End Face Criteria Table for Angled PC Polished Connetors

Zone Description Diameter Allowable Scratches

(Width)

A Critical Zone

B Cladding Zone

CAdhesive Zone

DContact Zone

0µm to 25µm ≤ 4µm

25µm to 120µm

120µm to 130µm

130µm to 250µm

No limit

No limit No limit

No limit

Fiber End Face Criteria Table for Ultra PC Polished Connetors

Zone Description Diameter Allowable Scratches

(Width)

A Critical Zone

B Cladding Zone

0µm to 25µm

25µm to 120µm

None None

No limit ≤ 3µm None > 3µm

Allowable Defects (Diameter)

None

No Limit < 2µm 5 from 2µm to 5µm None > 5µm

None ≥ 10 µm

Allowable Defects (Diameter)

No Limit < 2µm 5 from 2µm to 5µm None > 5µm

CAdhesive Zone

DContact Zone

120µm to 130µm

130µm to 250µm

No limit No limit

No limit

None ≥ 10 µm

Fiber End Face Criteria Table for SM PC Polished Conn. (Single Mode Fiber, RL≥ 26 dB)

Zone Description Diameter Allowable Scratches

(Width)

A Critical Zone

B Cladding Zone

CAdhesive Zone

DContact Zone

0µm to 25µm

25µm to 120µm

120µm to 130µm

130µm to 250µm

2 ≤ 3µm None > 3µm

No limit ≤ 3µm None > 3µm

No limit No limit

No limit

FTE-7000A User's Guide Rev A 5/201440

Allowable Defects (Diameter)

2 ≤ 3µm None > 3µm

No Limit < 2µm 5 from 2µm to 5µm None > 5µm

None ≥ 10 µm

Page 46

Chapter 11 Loss Test Set

11.1 Entering Light Test Set Function

The FTE-7000A is equipped with a Loss Test Set which includes the power meter and CW source. On the home screen, touch the LTS icon or use the left or right button to highlight the LTS Icon and press SELECT. All OTDRs will support the stable Light Source, thought not all OTDRs will support the Power Meter.

NOTE:

All OTDRs will support the stable Light Source, thought not all OTDRs will include the Power Meter.

NOTE:

The loss test set function is only operable using the touch screen feature.

11.2 LTS File/Help Icon Menu

Home

Touch the home icon to exit the LTS function and return to the home Screen.

Quick Save

Quick Save: Touching this icon will save the value on the display to the active project folder with an LTS label and ﬁ les will be automatically incremented to the next numbered sufﬁ x.

Project Management

Project Folder: Opens the project management screen. For a full description of project management operation, please refer to "Chapter 8" of this user's guide.

File Management

File Manager: To open ﬁ le manager touch the ﬁ le manager icon. For a full description of project management operation, please refer to "Chapter 9" of this user's guide.

Help

Press the menu button, use the left and right buttons to highlight the help icon and press select to view the context sensitive help information.

11.3 Light Source Operation

Selecting Light Source Wavelength

The light source is located in the top left portion of the display. Touch the source indicated or the OFF indicator and a list of available sources will be displayed. Touch the desired wavelength to turn on that light source, or Disable to shut the light source off.

Selecting Light Source Modulation

Modulation is located in the top right portion of the display. Touch the modulation value indicated and the list of available modulation values will be displayed. Touch the desired value to modulate the source or touch CW for a continuous wave. The available modulation values are CW, 270Hz, 1000Hz and 2000Hz.

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Chapter 11 Loss Test Set

11.4 Power Meter Operation

Set Power Meter Wavelength

The Power Meter wavelength being tested in indicated in the bottom left of the display. To change the wavelength, touch the indicated value below Power Meter and a list of calibrated wavelengths will be displayed. Touch the wavelength to be tested and begin the test. Available wavelengths are 850/1300/1310/1490/1550/ 1625nm.

In the bottom right portion of screen is reference indicator. Touching this portion of the display will allow access to set the reference and set the display to dB (Relative) or dBm (Absolute) values.

Set Reference

Connect the reference cable/s to the appropriate ports and touch reference in the bottom right of the display, touch the Set Reference tab and a non-volatile reference value will be displayed below the reference indicator in the bottom right of the display.

Set Measurements Units

The power meter displays measurements in dB (Relative) or dBm (Absolute) units of measure. dB measurements are used with a set reference as described above. dBm measurements do not take into account the reference and display the absolute power value received by the detector.

11.4 LTS Project Management

To save loss measurements to a project, touch the project management icon, highlight the project to be used and touch it again to open the projects folder. A list of ﬁ les associated to that folder will be displayed. OTDR ﬁ les are proceeded with trace type image, the LTS ﬁ le will have an LTS indicator and Scope ﬁ les will be proceeded by a target image. To return to the LTS screen exit the ﬁ le management screen by drawing down the ﬁ le management menu, touching ﬁ le to open the drop-down menu and touch the exit tab. For a full description of project management operation, please refer to "Chapter 8" of this user's guide.

11.5 LTS File Management

To op en ﬁ le manager touch the ﬁ le manager icon. To save a ﬁ le using the ﬁ le manager, with the test data on the display, open the ﬁ le management, open the drop-down menu under ﬁ le by touching the ﬁ le tab and touch save. Name the ﬁ le as desired with the onboard keyboard. by touch the ﬁ le tab File/Save highlighted press SELECT. Use the QWERTY keyboard to enter a ﬁ le name. For a full description of project management operation, please refer to "Chapter 9" of this user's guide.

NOTE:

File names will be saved exactly as entered using this method. To have the ﬁ les saved with incremen- tally number sufﬁ xes, use the ﬁ le manager to save the base ﬁ le name with the sufﬁ x number as the ﬁ rst ﬁ le to be save in a sequence and then use the Quick Save icon.

file test as test.001 and when you use quick save for the next test, the file name will be test.002.

Example: Use file manger to save the

11.6 Exiting Lost Test Set Operation

Touch the Home icon to exit the loss test set function and return to the home screen

FTE-7000A User's Guide Rev A 5/201442

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Chapter 12 Speciﬁ cations

12.1 OTDR Speciﬁ cations

Wavelength 850, 1300, 1310, 1490, 1550, and 1625nm (±20nm)

Dynamic Range 26/27dB MM,36/35/35/35dB SM

Pulse Width 5 - 20,000 ns

Units of Measurement Kilometer, Kilo feet and Mile

Event Dead zone 1m

Attenuation Dead Zone 4m

Resolution .125 - 32m

Distance Uncertainty ±(0.75m + 0.005% x distance + sampling resolution)

Full Scale Distance Range 0.25-64km MM , 0.25 -240km SM

Typical Real-time Refresh Rate 2 Hz

Group Index of Refraction (GIR) 1.024 - 2.048

Linearity ± .05 dB/dB

Memory Capacity ~1000

Memory Type Internal

Power Supply / Charger Universal

Battery 4hr typ.

Storage Temperature -20 to 60 C

Operating Temperature Range -10 to 50 C

Dimensions (without rubber boot)

Weight 1.6 lbs.

Communications ports USB

Connector Styles FC, ST or SC Interchangeable

8.07” L x 3.89” W x 1.57” H

(205mm L x 99mm W x 40mm H)

12.3 Power Meter Speciﬁ cations

Detector Type InGaAs

Connector Type 2.5mm Interchangeable

Dynamic Range +5 to -77dB (CATV - +25 to -57dB)

Calibr a t e d Wavelen g t h s 85 0,13 00,13 10,14 9 0,1 5 5 0,1 6 2 5 n m

Power Measurement Uncertainty

Units of Measurement dBm, dB

Resolution .01 dB

± 0.18 dB under reference conditions, ± 0.25 dB from 0 to -65 dBm,

± 0.35 dB from 0 to +5 dBm and from -65 to -77 dBm

12.2 Light Source Speciﬁ cations

Fiber Type Single mode, Multimode

Wavelengths 850, 1300, 1310, 1550, 1625 nm ±20nm *

Output Power 0 dBm (-3dBm @ 1625nm)

Laser Safety Classiﬁ cation Class I Safety Per FDA/CDRH and IEC-825-1 Regulation

Modulation Modes CW, 270 Hz, 1000 Hz, 2000 Hz

* Light source wavelengths present are determined by the OTDR conﬁ guration

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TTI reserves the right to change speciﬁ cations without notice.

Page 49

Chapter 13 Repair/Warranty

13.1 Repair Information

If repair is required, simply call the factory at 1-888-U.S.-OTDRS (876-8377) for return instructions and a RMA number.

13.2 Warranty Information

This product, including all mechanical, electrical, and optical parts and assemblies are unconditionally warranted to be free of defects in workmanship and material for a period of one (1) year from the date of delivery.

This warranty does not apply to expendable parts such as batteries or optical panel connectors, nor to any instrument or component which has been subjected to misuse, alteration, or ﬁ ber connector damage. It is the customer’s responsibility to understand all the instructions and speciﬁ cations prior to operating this instrument. This warranty does not extend to any loss or damage consequent to the failure of the warranted product.

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Chapter 14 Version Control

14.0 Version Control

Through a Program of continuous improvement the upgrade of the features and performance of this instrument are an on going process. The instrument ﬁ rmware version is accessible in the lower right corner of the home screen. The version changes and approximate release dates are as follows.

OTDR V1.0.0.0 - 02/2014 - Original release

V1.1.0.4 - 05/2014 - Event table and schematic access from OTDR screen via tabs

Event marker overlay on trace graph when in either event or schematic tab

Redesigned the scope screen including new large icon menus and the defect size gauge overlays

Support for virtual instrument control via both CertSoft and android app

Independent IOR settings per wavelength

Increased total maximum number of ﬁ les as well as maximum number of ﬁ les in each project

V1.1.0.5 - 05/2014 - Field upgradable help text via windows reporting software

45FTE-7000A User's Guide Rev A 5/2014

TTI FTE-7000A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual