AFL FlexTester 3 Manuale utente

www.AFLglobal.com or +1 (800) 321-5298, +1 (603) 528-7780

FLX380 FlexTester

Series

Quick Reference Guide

Advanced Test Equipment Rentals

www.atecorp.com 800-404-ATEC (2832)

Functional Keys

KEY NAME KEY FUNCTION

Power Press and hold (~1 second) to turn the FLX380 on or off.

VFL Visual Fault Locator (red laser):

ON - Press and hold (~1 second) LED will ash.

ON - Press and hold (~2 seconds) LED will be solid.

OFF - Press and hold (~1 second) LED should be OFF.

Menu Press to access the Main Menu.

Left & Right

Tab keys

Press to display the next/previous available Menu Tab or Test View Tab.

Arrow

(Navigation)

keys

The arrow keys provide several functions:

•Main Menu: these keys are used to navigate menus and change setup parameters.

•Trace Page: in the Zoom mode, these keys are used to adjust zoom. In the Move

mode, Left and Right keys are used to move cursors.

Select (A/B) This key provides several functions:

•Main Menu: press to display a submenu (if available).

•Trace Page: press to toggle the active cursor between A and B.

Back Press once to return to the previous page.

Press one or more times, depending on which menu or editor submenu is displayed,

to return to the Main Menu.

Test Press to start or stop a test.

Save Provides several functions: save the currently displayed test results; set current

folder; set current le name; review results.

F1 Soft keys

(under

display)

The label shown in the display above each soft key (F1, F2 or F3) indicates the

current function for that key.

Press to select the indicated function.

Functional Keys

FLX380 FlexTester

Test Modes

OTDR Modes

TEST MODE NETWORK BEING TESTED APPLICATIONS SETUP

FTTx PON OTDR–

Test Customer

Fiber Only (to

splitter)

PON power meter.

Customer ber fault location (ber may be

live or dark).

Auto

FTTx PON OTDR–

Test Through

Splitter

End-to-end length, loss, and ORL.

Splitter loss.

Feeder ber fault location.

Semi-Auto

Full Auto (point-

to-point) Long-haul

Metro

Access

Fault location.

End-to-end length, loss, and ORL.

Connector loss and reection.

Splice loss.

Auto

Real Time Any Short range fault location.

First connector check.

Fusion splice check.

Mechanical splice tuning.

Semi-Auto

Expert Any Advanced point-to-point and FTTx PON.

testing for experienced OTDR users.

Manual or

Semi-auto

PON

OLT

PON

Light Source and Power Meter Mode

TEST MODE APPLICATION

Light Source •Measure end-to-end loss using manually set or Wave ID wavelength.

•Trace bers using tone generation and a NOYES Optical Fiber Identier (OFI).

Power Meter •Measure optical power or ber loss using manually set or automatically detected

(Wave ID) wavelength.

Running OTDR Tests and Viewing Results

Note: After an OTDR test is started, it may take several seconds for the rst results to appear and

depending on setup, tens of seconds or even several minutes for tests to complete.

FLX380 FlexTester

Main Menu Display Features

Main Menu Page (FLX380-303/-304 model shown)

Notes:

•FTTx PON OTDR combines functions of previous FTTx – In Service and FTTx – PON Construction modes.

•FTTx PON Power Meter measures downstream PON power levels in live PONs.

•Full Auto OTDR should only be used for point-to-point testing applications.

To Start a Test, press

Test key.

To Stop a Test

• Press

Test key. If pressed before trace appears, it will stop the test and display the setup menu. If pressed

after trace appears, it will stop the test, generate the event table and show the partially completed trace.

• Pressthe

Back key. OTDR stops the test and displays the setup menu.

Battery charge status icon.

- 100%

- <100%

- < 10%

Time-of-Day.

Page header.

Highlighted tab indicates

the currently displayed

Menu Page.

The currently highlighted

Menu option.

Press [Files] to open saved

les.

Main Menu tabs.

Press [USB] to transfer

saved results and download

software upgrades.

Press to display the last

OTDR trace viewed.

Launch Quality Check

D E F

The FlexTester3 OTDR features an optional launch quality check when an OTDR test is initiated.

To perform the launch quality check:

1. From the Main menu, display the Settings screen A

using keys.

2. Using keys navigate up/down the list to highlight the

Launch Quality Check parameter B.

3. If set to [Disabled], use keys to enable - display

[Enabled].

4. With the lunch quality check option enabled, press the Test

key to start an OTDR test.

5. The FLS380-30 will assess the loss and reectance at the

OTDR’s connection to the launch ring or ber-under-test.

6. If excess loss or reectance is detected, the OTDR reports

results and displays the ‘Poor Launch Quality’ screen C.

7. From the ‘Poor Launch Quality’ screen Cthe user may

chose to perform one of the following:

8. Cancel a test by pressing Cancel Dsoft key or

Back key .

9. Clean connectors and repeat the launch quality check by

pressing Re-check soft key Eor Enter key .

10. Continue testing without checking and cleaning the

connection by pressing Test soft key For Test key.

Test Settings: General OTDR Test Modes

Setup

Parameter

General-Purpose OTDR Test Mode

Full Auto Real Time Expert

Wavelength User selects single or multiple wavelength(s) at which to test.

Auto Setup N/A

(not applicable)

[Off]: User sets all parameters manually.

[By Range]: User sets [Range] & [Resolution], [Pulse width] &

[Averaging] selected automatically.

Range N/A: automatic User sets OTDR scan range.

Pulse width N/A: automatic,

based on auto-

detected range

Automatic if [Auto Setup] parameter is set to [By Range] option.

User-set if [Auto Setup] parameter is set to option [Off].

Averaging N/A: 1 second

updates

Automatic if [Auto Setup] is set to [By Range].

User-set if [Auto Setup] is set to [Off].

Resolution N/A: automatic User-set [High] or [Normal].

Range: When setting manually, select [Range],

which is at least 20% longer than the ber under

test.

Pulse width [Pulse]: Select wider pulse widths to

obtain cleaner traces (less noisy). Select narrower

pulse widths to detect events which are close

together (better resolution).

Averaging Time [Averaging]: Longer averaging

times produce cleaner traces.

Resolution: [High] resolution provides close data

spacing for more precise event location and better

detection of closely spaced events. [Normal]

resolution uses more ltering to provide a cleaner

trace, but with lower resolution.

Parameter FTTx PON OTDR Test Mode

Wavelength User selects single or multiple wavelength(s) at which to test.

Range Auto: Range, pulse width, resolution, averaging are automatically determined.

Distance settings: User manually selects setting in range 250 m to 240 km.

Test If set to [Customer Fiber Only], tests only to the splitter using automatically determined

Range setting.

If set to [Through Splitter], tests through splitter including customer and feeder bers using

selected automatic or manual range setting.

PON Not present if [Test] parameter is set to [Customer Fiber Only] option. If [Test] is set to

[Through Splitter], user sets PON split ratio (1x8, 1x16, x132, 1x64, or 1x128).

Test Settings: FTTx PON OTDR Test Mode

Range: When setting manually, select [Range],

which is at least 20% longer than the ber under

test.

Pulse width [Pulse]: If testing through splitter,

pulse width is set automatically based on [Range]

and [PON] split ratio. If testing customer drop ber

only (In Service), automatically set based on range

to splitter.

When testing through a splitter, user can force

a wider pulse width to improve trace quality by

selecting a longer [Range] or higher [PON] split

ratio.

Averaging Time: Also set automatically.

Resolution: Since PONs are usually short, resolution

is typically set to High (close data spacing) for more

precise event location.

OTDR Mode: Trace Page Features

Soft key labels

(see next page for details)

Event Table displays OTDR

event measurements.

Information Page

displays OTDR setup

parameters, launch and

receive cable data, and

event thresholds.

Summary Page displays

end-to-end link

measurements.

A and B cursors.

Trace graph

(RED is current).

Receive cable

(if present).

File name (cable name + ber number), or “New

Trace” if le has not been saved.

Test Wavelengths (RED

is current).

Grid units display

dB/div on vertical axis

and distance/div on

horizontal axis.

Trace Page displays OTDR trace, A/B cursors,

Loss, Distance, and max reectance between A

and B cursors.

Launch cable

(if present).

Fiber under test.

OTDR Mode: Trace Page Features

Navigation Keys

Zoom mode Move mode

Note: Zoom expands/shrinks the trace around the

currently active cursor.

2-point Loss between A

and B cursor.

B cursor location (active

cursor is highlighted).

Distance between A

and B cursor.

For multi-wavelength

tests, press to toggle

active trace.

A cursor location.

Maximum Reectance

between A and B cursor.

Press to toggle Zoom and Move mode. In

Move mode, the key label will be displayed

as [ Zoom]. In Zoom mode, the key label

will be displayed as [ xZoom].

Press to Unzoom or

Rezoom.

Left

Move active

cursor

Right

Move active

cursor

A/B cursor

select

Vertical Zoom ( )

Horizontal

Zoom ( )

Horizontal

Zoom ( )

A/B cursor

select

OTDR Mode: Event Table Page Features

Event Table is automatically generated when the [Events] are set to [Auto] in the OTDR Event settings display.

Event Table displays:

[Number] of each event, event [Location] in

user selected units, event [Type], [Reectance]

and [Loss] in (dB) and loss/distance (dB/km).

Trace Graph.

For multiple-wavelength tests, press to toggle

the wavelength and display event table for

that wavelength.

Event Types

ICON EVENT TYPE DESCRIPTION

Start The start of the ber under test.

End The end of the ber under test.

Non-

reective

Loss Event

An event with measurable loss but very small or unmeasurable reectance, typically

caused by a fusion splice, ber break, or macrobend (with macrobend detection

disabled).

Non-

reective

Gainer Event

An event with ‘negative loss,’ which can occur in OTDR traces where two bers with

very different backscatter coefcients are spliced or connected. A gainer will be seen

as a normal (positive loss) event when tested from the other end of the ber. The true

loss of the event is approximately equal to the average of its loss measured from each

end of the ber under test.

Reective

Event

An event with measurable loss and reectance, typically caused by a connection or

mechanical splice.

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