M200 OTDR Training 1-800-321-5298 Using an M200 OTDR For M200 Version 1.0.6 released November 2006

M200 OTDR Training

1-800-321-5298 www.AFLtele.com

Using an M200 OTDR For M200 Version 1.0.6 released November 2006

M200 OTDR Training


Outline• Features• Test Modes

– Full Auto– Live– Expert

• Main Menu Set Up– Test Settings– File Settings– General Settings– Event Settings

• Testing• File Management

M200 OTDR Training


Features of the M200• Single-mode, Multimode and ‘Quad’ models

• Short event / attenuation dead zones

– (1.5 / 9 m typical)

• Intermediate range (26 dB) good for access, FTTH, and premises fiber networks

• Hand-held (1.9 lb)

M200 OTDR Training


Features of the M200• Li-ion battery:

– ~ 8 hour operating time– Tool-free battery door

• New, graphical user interface with web-like PREV / NEXT keys to view results

M200 OTDR Training


Features of the M200• Test, View, & Save As in trace pairs

850/1300nm or 1310/1550nm

M200 OTDR Training


Features of the M200 • Tool-free, changeable test port adapters

– SC, FC, ST included (LC available-call factory)

• Trace600 software (free-ware)

• Internal & Compact Flash data storage

– Store 1000’s of traces

M200 OTDR Training


Features (cont.)• Transflective Color Display

– Crisp and bright indoor & in direct sunlight

• Dedicated Test & Save Keys

• Integrated VFL (650 nm)

M200 OTDR Training


Features (cont.)• Quick disconnect integrated into

boot for wrist strap or other hanging devices

• USB port to transfer data to PC using ActiveSync

M200 OTDR Training


Features (cont.)• Rich file naming and folder setup• Standard Bellcore.SOR trace file format

– (GR-196)

M200 OTDR Training


Features (cont.)• Touch-screen may be used for text entry

M200 OTDR Training


M200

Set Up &

Home Page

M200 OTDR Training


Home Page

•M200 start-up page

•If user hits Back/home key successively, they will get to this screen after exiting other screens

•Allows access to File Manager for reviewing Traces on the M200 and managing the files and folders

M200 OTDR Training


Home Page Test Modes

•Full Auto, Live or Expert Test Mode is selectable from the Home Page usingbuttons

•Fiber Type (shown as Single-mode) is not selectable from the home page

M200 OTDR Training


Home Page Launch & Receive1 Launch & 2 Receive cables are specified in the test set up

Launch cable only specified in the test set up

Fiber Ring

Launch/Receive

1 2 1

M200 OTDR Training


Home Page Next Tests

•Name for next test: SMITH HALL 001

•Fiber Number of the next test, can be incremented from 001 to 999 using the buttons

•File Storage: as shown next tests will be stored to Compact Flash (CF) in the folder named SPG

M200 OTDR Training


Main Menu

TEST SETTINGS

M200 OTDR Training


Test Settings: Main Menu -Test TabAccess Main Menu by pressing at the Home PageTest is the first Tab in all test modes

Full Auto Expert Auto Live Expert Manual

M200 OTDR Training


Test Settings: Sub Menus

Parameters followed by “…” indicate there is a submenu. To access, highlight the parameter and press select the button

Fiber Type:Use default setting or refer to manufacturers fiber specifications for the fiber under test

M200 OTDR Training


Test Settings: Main Menu - File TabUse to create a New Folder or to Change the Folder

into which the Next Test Traces will be saved.

1. Highlight Folder…2. Press the button to

open the File Manager3. Use and buttons to

choose an existing file4. Or Press Tools, use the

down arrow to select New Folder to create a new folder

Tools Pop up menu

M200 OTDR Training


File Name FormatName Format – user selectable[Cable_Fiber] or [Far_Fiber]

SMITH HALL_001_S13.sor

Wavelength indicator- added by M200

Fiber number –user set, will auto increment

File name prefix – user defined

M200 OTDR Training


Test Settings: Main Menu - General Tab

• Distance Units: select the units to be used for distance measurements:– Meters, Kft, Km, Miles, Feet

• Beeper: Audible tone On or Off

• Language: Select English or other available language. OTDR must restart to make current

• View Version: Important for calls to Tech Support or for upgrading the M200

M200 OTDR Training


Test Settings: Full Auto ModeSelect the Mode by using

•Full Auto, Live, Expert

•Select the Test Port type by using

•Single-mode or Multimode

Specify if using Launch &/or Receive cables, and their respective length

Full Auto tests will be performed at two wavelengths per test:

•850/1300nm for Multimode

•1310/1550nm for Single-mode

Main Menu Test Tab

M200 OTDR Training


• Specify a Range: 1.5 to 2 x length of fiber under test

• Live tests will be performed at ONLY one wavelength per test: – 850 or 1300nm for Multimode – 1310 or 1550nm for Single-mode

• Specify if using Launch &/or Receive cables, and their respective length

Test Settings: Live ModeWith the Mode line highlighted use the buttons to select Live

M200 OTDR Training


Expert Auto uses default settings to perform a test but allows the user to test at a single wavelength if desired

Expert Auto tests can be performed at one or two wavelengths per test: – 850 and/or 1300nm for Multimode – 1310 and/or 1550nm for Single-mode

Test Settings: Expert Mode AutoHighlight the Mode line and use the buttons to select Expert

M200 OTDR Training


In Expert Manual the user must know information about the fiber under test and how to set up an OTDR

Expert Manual tests can be performed at one or two wavelengths per test: – 850 and/or 1300nm for Multimode – 1310 and/or 1550nm for Single-mode

Test Settings: Expert Mode-ManualWith the Mode line highlighted use the buttons to select Expert

M200 OTDR Training


• Range: set to 1.5 to 2 x length of fiber under test including launch/receive cables

• Pulse: (see next slides)– Narrow pulses are best for resolving close events but

are limited to short links.– Wide pulses are good for measuring long links

• Time (Averages): (see next slides)– Traces are always averaged over hundreds or thousands of

pulses. – The trade-off is time vs. trace quality. – After about 3 min, you get very little additional improvement

• Filter: selectable as On or Off, – Smoothes choppy traces. – As a rule of thumb use with PW 1us or greater

Test Settings: Expert Mode - ManualUse buttons to specify the parameters for testing

M200 OTDR Training


Range

Too short: less than link length

Link

Can’t see entire link – unpredictable results

Good: about 1.5x to 2x link length

Link

Good trace – can see end of fiber

Too long: much larger than link length

Link

Trace is “squashed” into left side of display

M200 OTDR Training


Pulse Width

Too wide:

Can’t resolve events

About right:

Events can be seen and trace is smooth

Too narrow:

Trace “disappears” into noise floor

Link Link Link

Where is this this event?

M200 OTDR Training


Averages (Time)

Too many

Trace is smooth but waste of time

About right:

Trace is smooth

Too few:

Trace is noisy – noise floor is too high

Link Link Link

M200 OTDR Training


Main Menu: Expert - Events Tab

• Events: set to Auto or Off

• Thresholds: set to Default or User

• Auto Default will generate an Event Table using the M200 settings

• Off will not automatically generate an Event Table

M200 OTDR Training


Main Menu: Expert - Events Tab

• Events: set to Auto• Thresholds User

– Press Select and adjust the parameters using the navigation buttons

• Auto User will generate an Event Table using the users threshold parameter settings

M200 OTDR Training


Testing• Clean all connectors to be

involved in testing• Connect Launch Cable to the

appropriate Test Port and the Fiber Under Test

• If using connect Receive Cable to far end of Fiber Under Test

• Set the OTDR up as previously explained

• Press Test

M200 OTDR Training


Trace View TabDisplays the:

1. OTDR Trace graphically

2. Trace set-up parameters

3. A and B cursor locations

4. Distance from A to B cursors in user selected distance units

5. Insertion Loss measured from the A to B cursor

LaunchCable

4

23

1

5

M200 OTDR Training


Trace View Tab (cont.)1. Single-mode

2. Dual Wavelength 1310/1550nm

3. 150m Launch Cable

4. Trace is not yet saved

5. As shown traces will be saved:

To the Compact Flash in the SPG folder as file:

QA Box 001_S13.sor &

QA Box 001_S15.sor

LaunchCable

2

31

54

M200 OTDR Training


Zoom Adjust – Trace View

• From Trace View press the Zoom Adjust soft key

• Zoom will occur around the “active” (solid cursor)

– To change cursors press the select button

• Use the Navigation buttons to adjust the zoom level

• Press the soft key “OK” when finished zooming

M200 OTDR Training


Event Table Tab

• Displays a graph of the OTDR trace plus test date in the event table– Event Locations– Event Type– Event Reflectance (dB)– Event Insertion Loss

Generated for Full Auto & Expert Tests if Events is set to Auto

M200 OTDR Training


Event Table Tab

• Event Icons Type

Start

End

Reflective Event

Non-Reflective Event

Gainer

Multiple Event

M200 OTDR Training


Event Table Tab• Touching the event in the

table or using the navigation buttons will highlight and put the cursor on the event selected

• The navigations buttons will zoom/un-zoom around the selected event cursor

M200 OTDR Training


Re-Calculate an Event Table

• Press the soft key for “Re-Calc” if you desire to change a test parameter

• This opens a window of parameters some which can be changed, (black text)

M200 OTDR Training


Calculate an Event Table

• An Event Table is generated for Full Auto Tests & Expert Tests if Events is set to Auto

• Press the soft key for “Calc” if an Event Table was not calculated

M200 OTDR Training


Summary Table

Displays a graph of the trace

Displays a table with– Link Length– Optical Return Loss (dB)– Insertion Loss (dB)

M200 OTDR Training


Saving a File - File Info Tab• Displays the fiber set up

parameters of the currently displayed trace

• Allows you to change the Name Format, Near, Far or Cable names, Fiber Number or Folder where the test will be saved

M200 OTDR Training


Saving a File• Press the dedicated

Save key to save the file

• You can save from the Trace, Event Table, Summary or the Save Tabs

M200 OTDR Training


File ManagementOpening Traces for Review

Swapping from CF to Internal

Tools

M200 OTDR Training


Opening a Saved Trace for ReviewTo review saved tracesPress the Files Soft Keyfrom the Home Page to open the File Manager

Use Navigation keys to select folders or files

M200 OTDR Training


Opening a Saved Trace for Review


Use to move up or down the list of files/folders

Use to move to the Top or Bottom of current list

Press the select button with the up arrow line selected to go up a level

M200 OTDR Training


Opening a Saved Trace for Review


Use to move up or down the list of files/folders, press the select key to highlight the file (file pair) you would like to review, press the open soft key to open the file

M200 OTDR Training


Swapping CF to Internal*• Use the navigation keys

to select the drive you desire (will have red lines above and below it to show it is selected) Press the Select key to open that folder

• If select was pressed in this example the CF folder would be opened

*Note: you must have a CF card inserted in the M200

M200 OTDR Training


TOOLS• In file manager the soft key

Tools opens a window to allow you to manage files:– Cut files/folders– Copy files/folders– Paste files/folders– Delete files/folders– Create New Folders– Rename files/folders– Select All – Select None

M200 OTDR Training


TOOLS (cont.)• If moving files it is

recommended to copy and paste them not cut them

• Assure you have made a successful copy before cutting or deleting files/folders

Example: 1310nm tests selected for copyingUp/down & select were used to select the tests

M200 OTDR Training


Using an OTDR• You must use a launch cable to measure the loss

of the near-end connection• You must use a receive cable to measure the loss

of the far-end connection• Both cables must use the same type fiber (50 m,

62.5 m, or single-mode) as the link under test• For testing links under 2 km, the length of the

launch and receive cables should be about 100 m, for long fibers under test, longer launch and receive cables may be needed

M200 OTDR Training


• Without launch and receive cables the OTDR cannot measure the IL of the near-end or far-end connections.

• This is a problem in premises links, which are typically short, because these connections represent a large portion of total link loss.

Fiber IL

1 2

Start event End event

Link

No launch or receive cable

M200 OTDR Training


• Adding the launch cable enables the OTDR to include the loss of the near-end connection in total link loss calculations, and measure its reflectance

Adding a launch cable

A B

Fiber + Near-end IL

LaunchCable Link

M200 OTDR Training


• Adding a receive cable enables the OTDR to include the loss of the far-end connection in total link loss calculations, and measure its reflectance

Adding the receive cable

A B

Link IL

LaunchCable Link

ReceiveCable

M200 OTDR Training


• If launch and receive cables are installed

• To see total link loss, view event table -- cumulative loss at last event will equal total or “end-to-end” link loss

End-to-end link loss

A B

Link IL

LaunchCable Link

ReceiveCable

M200 OTDR Training


LaunchCable

(Fiber Ring)OTDR

SMMM

Work AreaOutlet

HorizontalPatch Panel & Patch Cords

Splice

MainPatch Panel

B A

BA A

B A

ReceiveCable

(Fiber Ring)

B

HorizontalSegment

BackboneSegment

Using an OTDR

M200 OTDR Training


OTDRscreen

0

0 25050 100 150 200

-2

-1

-3

-4

RelativePower(dB)

Distance (m)

A B

Link beingtested

OTDR

LaunchCable

HorizontalSegment

BackboneSegment

ReceiveCable

SplicePatch Cord

Reading an OTDR Trace

LaunchCable

Splice(Loss 0.1 dB)

Rcv.Cable

TraceHoriz.Seg.

(2) Connections (Loss 0.8 dB)

BackboneSegment

(1) Connection(Loss 0.4 dB)

Link Loss ( 2.1 dB)

(1) Connection(Loss 0.4 dB)

Link Length ( 130 m)

M200 OTDR Training


Transferring Files to PC• Files can be transferred to a PC from the

Compact Flash, using a Compact Flash Reader

• Files can be transferred directly from the M200 to a PC using a USB cable. You may need to install new USB drivers included on the CD-ROM that comes with the M200

M200 OTDR Training


Website: www.afltelecommunications.com

or

www.AFLtele.com

Click on Products > Noyes Test & Inspection

Address: 16 Eastgate Park RoadBelmont NH 03220

Telephone: 800-321-5298 (USA)603-528-7780ask for Technical Support or Sales

Fax: 603-528-2025

To contact Noyes Fiber Systems

Documents

M200 OTDR Training 1-800-321-5298 Using an M200 OTDR For M200 Version 1.0.6 released November 2006