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Using an M200 OTDR For M200 Version 1.0.6 released November 2006. Outline. Features Test Modes Full Auto Live Expert Main Menu Set Up Test Settings File Settings General Settings Event Settings Testing File Management. Features of the M200. Single-mode, Multimode and ‘Quad’ models

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slide1
Using an M200 OTDR

For M200 Version 1.0.6 released November 2006

outline
Outline
  • Features
  • Test Modes
    • Full Auto
    • Live
    • Expert
  • Main Menu Set Up
    • Test Settings
    • File Settings
    • General Settings
    • Event Settings
  • Testing
  • File Management
features of the m200
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)
features of the m2001
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
features of the m2002
Features of the M200
  • Test, View, & Save As in trace pairs

850/1300nm or 1310/1550nm

features of the m2003
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
features cont
Features (cont.)
  • Transflective Color Display
    • Crisp and bright indoor & in direct sunlight
  • Dedicated Test & Save Keys
  • Integrated VFL (650 nm)
features cont1
Features (cont.)
  • Quick disconnect integrated into boot for wrist strap or other hanging devices
  • USB port to transfer data to PC using ActiveSync
features cont2
Features (cont.)
  • Rich file naming and folder setup
  • Standard Bellcore.SOR trace file format
    • (GR-196)
features cont3
Features (cont.)
  • Touch-screen may be used for text entry
slide11
M200

Set Up &

Home Page

home page
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
home page test modes
Home Page Test Modes
  • Full Auto, Live or Expert Test Mode is selectable from the Home Page using
  • buttons
  • Fiber Type (shown as Single-mode) is not selectable from the home page
home page launch receive
Home Page Launch & Receive

1 Launch & 2 Receive cables are specified in the test set up

Launch cable only specified in the test set up

1

2

1

Fiber Ring

Launch/Receive

home page next tests
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
slide16
Main Menu

TEST SETTINGS

test settings main menu test tab
Test Settings: Main Menu -Test Tab

Access Main Menu by pressing at the Home Page

Test is the first Tab in all test modes

Full Auto

Live

Expert Auto

Expert Manual

test settings sub menus
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

test settings main menu file tab
Test Settings: Main Menu - File Tab

Use to create a New Folder or to Change the Folder into which the Next Test Traces will be saved.

  • Highlight Folder…
  • Press the button to open the File Manager
  • Use and buttons to choose an existing file
  • Or Press Tools, use the down arrow to select New Folder to create a new folder

Tools Pop up menu

file name format
File Name Format

Name 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

test settings main menu general tab
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
test settings full auto mode
Test Settings: Full Auto Mode
  • Select 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

slide23

Test Settings: Live Mode

With the Mode line highlighted use the buttons to select Live

  • 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
slide24

Test Settings: Expert Mode Auto

Highlight the Mode line and use the buttons to select Expert

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
slide25

Test Settings: Expert Mode-Manual

With the Mode line highlighted use the buttons to select Expert

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
slide26

Test Settings: Expert Mode - Manual

Use buttons to specify the parameters for testing

  • 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
range
Range

Too short: less than link length

Good: about 1.5x to 2x link length

Too long: much larger than link length

Link

Link

Link

Trace is “squashed” into left side of display

Can’t see entire link – unpredictable results

Good trace – can see end of fiber

pulse width

Too narrow:

Pulse Width

About right:

Too wide:

Link

Link

Link

Where is this this event?

Trace “disappears” into noise floor

Events can be seen and trace is smooth

Can’t resolve events

averages time

Too few:

Averages (Time)

About right:

Too many

Link

Link

Link

Trace is noisy – noise floor is too high

Trace is smooth

Trace is smooth but waste of time

main menu expert events tab
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
main menu expert events tab1
Main Menu: Expert - Events Tab
  • Events: set to Auto
  • ThresholdsUser
    • Press Select and adjust the parameters using the navigation buttons
  • Auto User will generate an Event Table using the users threshold parameter settings
testing
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
trace view tab
Trace View Tab

Displays the:

  • OTDR Trace graphically
  • Trace set-up parameters
  • A and B cursor locations
  • Distance from A to B cursors in user selected distance units
  • Insertion Loss measured from the A to B cursor

1

Launch

Cable

2

3

5

4

trace view tab cont
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

4

5

2

Launch

Cable

3

1

zoom adjust trace view
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
event table tab
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

event table tab1
Event Table Tab
  • Event Icons Type

Start

End

Reflective Event

Non-Reflective Event

Gainer

Multiple Event

event table tab2
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
re calculate an event table
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)
calculate an event table
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
summary table
Summary Table

Displays a graph of the trace

Displays a table with

  • Link Length
  • Optical Return Loss (dB)
  • Insertion Loss (dB)
saving a file file info tab
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
saving a file
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
file management
File Management

Opening Traces for Review

Swapping from CF to Internal

Tools

opening a saved trace for review
Opening a Saved Trace for Review

To review saved traces

Press the Files Soft Key

from the Home Page to open the File Manager

Use Navigation keys to select folders or files

opening a saved trace for review1
Opening a Saved Trace for Review

Use Navigation keys to select folders or files

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

opening a saved trace for review2
Opening a Saved Trace for Review

Use Navigation keys to select folders or files

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

swapping cf to internal
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

tools
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
tools cont
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 copying

Up/down & select were used to select the tests

using an otdr
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
no launch or receive cable
No launch or receive cable

Link

  • 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

adding a launch cable
Adding a launch cable

LaunchCable

Link

Fiber + Near-end IL

  • 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

A

B

adding the receive cable
Adding the receive cable

LaunchCable

ReceiveCable

Link

Link IL

  • 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

A

B

end to end link loss
End-to-end link loss

LaunchCable

ReceiveCable

Link

  • 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

Link IL

A

B

using an otdr1

MM

SM

OTDR

Using an OTDR

HorizontalSegment

BackboneSegment

B

A

B

A

Splice

A

B

A

B

HorizontalPatch Panel & Patch Cords

Work AreaOutlet

MainPatch Panel

Receive

Cable (Fiber Ring)

Launch

Cable(Fiber Ring)

reading an otdr trace

A

B

0

-1

Horiz.Seg.

RelativePower(dB)

OTDRscreen

-2

Splice(Loss  0.1 dB)

-3

BackboneSegment

LaunchCable

Trace

-4

Rcv.Cable

0

50

100

150

200

250

Distance (m)

LaunchCable

HorizontalSegment

BackboneSegment

ReceiveCable

Link being

tested

Reading an OTDR Trace

OTDR

Splice

Patch Cord

(1) Connection(Loss  0.4 dB)

(1) Connection(Loss  0.4 dB)

(2) Connections (Loss  0.8 dB)

Link Loss( 2.1 dB)

Link Length ( 130 m)

transferring files to pc
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
slide59

To contact Noyes Fiber Systems

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

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