EXFO Photonic Solutions Div. FVA-600 – страница 2

Cleaning EUI Connectors

Regular cleaning of EUI connectors will help maintain optimum performance. There

is no need to disassemble the unit.

IMPORTANT

If any damage occurs to internal connectors, the module casing will

have to be opened and a new calibration will be required.

To clean EUI connectors:

1. Remove the EUI from the instrument to expose the connector baseplate and

ferrule.

Turn

Pull

Push

2. Moisten a 2.5 mm cleaning tip with one drop of isopropyl alcohol (alcohol may

leave traces if used abundantly).

3. Slowly insert the cleaning tip into the EUI adapter until it comes out on the other

side (a slow clockwise rotating movement may help).

3

4

5

4. Gently turn the cleaning tip one full turn, then continue to turn as you withdraw

it.

FVA-600 15

Maintenance 16

5. Repeat steps 3 to 4 with a dry cleaning tip.

Note: Make sure you don’t touch the soft end of the cleaning tip.

6. Clean the ferrule in the connector port as follows:

6a. Deposit one drop of isopropyl alcohol on a lint-free wiping cloth.

IMPORTANT

Since isopropyl alcohol is not absolutely pure, it may leave residues

if used abundantly or left to evaporate (about 10 seconds).

Avoid contact between the tip of the bottle and the wiping cloth,

dry the surface quickly, and use a bottle that distributes only a drop

of alcohol at a time.

6b. Gently wipe the connector and ferrule.

6c. With a dry lint-free wiping cloth, gently wipe the same surfaces to ensure

that the connector and ferrule are perfectly dry.

6d. Verify connector surface with a portable fiber-optic microscope (for

example, EXFO’s FOMS) or fiber inspection probe (for example, EXFO’s

FIP).

WARNING

Verifying the surface of the connector WHILE THE UNIT IS ACTIVE

WILL result in permanent eye damage.

7. Put the EUI back onto the instrument (push and turn clockwise).

8. Throw out cleaning tips and wiping cloths after one use.

Recharging the Battery Pack

To recharge the battery pack, connect the AC adapter/charger. A full recharge takes

approximately 5 hours. For maximum efficiency, recharge the battery at room

temperature.

IMPORTANT

o

³ The battery functions and charges properly between 0

C and

o

o

o

45

C (32

F and 113

F). It will not charge if the temperature is

o

o

o

o

below -10

C (14

F) or above 45

C (113

F).

o

o

³ Never store battery at temperatures above 60

C (140

F).

³ Charge only with specified charger.

To recharge the Li-Ion battery:

Connect the unit to a power outlet (or car outlet) using the AC adapter/charger. The

charge cycle will start and end automatically.

Note: While charging, the battery indicator animates continuously. It does not

reflect the actual charge status until charging is complete.

Replacing the Battery

Your unit requires one Li-Ion battery.

To replace the battery:

1. Turn off the unit (if the AC adapter is plugged in,

you may replace the batteries while unit is on).

2. Open the battery compartment door located at the

back of the unit.

3. Replace batteries respecting the polarity.

4. Close the battery compartment door.

WARNING

Do not throw batteries into fire or water and do not short-circuit

the batteries’ electrical contacts. Do not disassemble.

Checking the LCD Display

If you suspect that part of the LCD display is not lighting up properly, you can

perform a test to light up all segments at once.

To check the LCD Display:

Abs/

Rel/

1. When the unit is on, press and hold and simultaneously.

Pwr

2. Press any button to exit the LCD check mode.

Reverting to the Default Settings

You can revert to the default settings for the following parameters in one step:

³ Preselected wavelengths

³ Smallest step size in use

³ Backlight off

³ Use absolute operation mode

To reset the values:

When the unit is on, press and hold and .

λ

Select

FVA-600 17

Maintenance 18

Recycling and Disposal (Applies to European

Union Only)

Recycle or dispose of your product (including electric and electronic

accessories) properly, in accordance with local regulations. Do not

dispose of it in ordinary garbage receptacles.

This equipment was sold after August 13, 2005 (as identified by the

black rectangle).

³ Unless otherwise noted in a separate agreement between EXFO and a

customer, distributor or commercial partner, EXFO will cover costs related to

the collection, treatment, recovery and disposal of end-of-lifecycle waste

generated by electronic equipment introduced after August 13, 2005 to an

European Union member state with legislation regarding Directive 2002/96/EC.

³ Except for reasons of safety or environmental benefit, equipment manufactured

by EXFO, under its brand name, is generally designed to facilitate dismantling

and reclamation.

For complete recycling/disposal procedures and contact information, visit the EXFO

Web site at www.exfo.com/recycle.

6 Troubleshooting

Solutions to Common Problems

The following table presents common problems an their solution.

Problem Solution

Display is blank

³ Press .

³ Verify and connect AC adapter/charger.

Batteries are low

³ Connect AC adapter/charger.

Questionable attenuation

³ Switch input and output power.

³ Switch to the correct wavelength on all

instruments being used.

³ Perform a zero on the unit.

Error code

³ Restart unit.

³ If problem persists, contact EXFO.

FVA-600 19

Technical Specifications 26

A Technical Specifications

IMPORTANT

The following technical specifications can change without notice.

The information presented in this section is provided as a reference

only. To obtain this product’s most recent technical specifications,

visit the EXFO Web site at www.exfo.com.

BTypical Test

Configurations

Here are some typical connection configurations that you could use with your unit.

BERT and Protocol Analysis

The bit error rate (BER) is the ratio of bits transmitted incorrectly compared to the

total number of bits received in a transmission. The BERT (bit error rate tester) will

measure the BER for a given transmission.

The test setup below shows how the FVA-600 is used to attenuate the signal sent to

the transceiver before being analyzed by the BERT or Protocol tester.

TRX

FVA-600

FTB-500

BERT

Protocol Analysis

Overload and Sensitivity

The FVA-600 can be used to mesure either the overload or sensitivity value of the

connection from the transmitter to the receiver.

Increasing the power value will show the overload limit, and reducing the power to

a given target error rate value will show the sensitivity threshold.

TX

RX

FVA-600

FVA-600 27

Typical Test Configurations 28

OSNR Loading

The Optical Signal to Noise Ratio (OSNR) is an indication of the amount of noise

present in a given transmission signal.

The FVA-600 is used to adjust the relative power of the data carrying signal (from Tx)

and the ASE noise (from FLS) while monitoring that ratio on the OSA until a given

target error rate is obtained at the receiver.

TX

RX

FVA-600

FTB-500

OSA

FLS-2300B

FVA-600

ASE Source

ROADM

You can use the FVA-600 to help you with ROADM testing; by adjusting and

controlling the power level of the incoming power signal from a tunable laser

source sent into the ROADM or system under test.

OSA: Isolation and

cross-talk measurement

FVA-600

Low-loss

through path

FLS-2600B

Blocker

Drop filter

Tunable laser

OSA: Power

ADD

uniformity and

filter

long-term

monitoring

OSA: Insertion

loss and Isolation

NOTICE

抩⛙

CHINESE REGULATION ON RESTRICTION OF HAZARDOUS SUBSTANCES

₼⦌␂ℝ☀⹂䓸德棟Ⓟ䤓屓⸩

NAMES AND CONTENTS OF THE TOXIC OR HAZARDOUS SUBSTANCES OR ELEMENTS

CONTAINED IN THIS EXFO PRODUCT

▔⚺⦷㦻 EXFO ℶ❐₼䤓㦘㹡㦘⹂䓸德㒥⏒侯䤓⚜䱿✛⚺摞

Indicates that this toxic or hazardous substance contained in all of the homogeneous

materials for this part is below the limit requirement in SJ/T11363-2006

O

嫷䯉年㦘㹡㦘⹂䓸德⦷年捷ↅ㓏㦘⧖德㧟㠨₼䤓⚺摞⧖⦷ SJ/T11363-2006 㪖⑕屓⸩䤓棟摞尐

㻑ⅴₚᇭ

Indicates that this toxic or hazardous substance contained in at least one of the

homogeneous materials used for this part is above the limit requirement in SJ/T11363-2006

X

嫷䯉年㦘㹡㦘⹂䓸德咂⺠⦷年捷ↅ䤓㩟₏⧖德㧟㠨₼䤓⚺摞怔⒉ SJ/T11363-2006 㪖⑕屓⸩䤓

棟摞尐㻑ᇭ

Toxic or hazardous Substances and Elements

㦘㹡㦘⹂䓸德✛⏒侯

Part Name

Hexavalent

Pol ybrominated

Polybromi nated

Lead

Mercury

Cadmium

捷ↅ⚜䱿

Chromium

biphenyls

diphenyl ethers

杔

㻭

椣

⏼ↆ杻

⮩䅃勣啾

⮩䅃ℛ啾搩

(Pb)

(Hg)

(Cd)

(Cr VI)

(PBB)

(PBDE)

Enclosure

OO O O O O

⮥⮂

Electronic and

electrical

XO X O X X

sub-assembly

䟄⷟✛䟄⷟兓ↅ

Optical

a

sub-assembly

XO O O O O

a

⏘ⷵ兓ↅ

Mechanical

a

sub-assembly

OO O O O O

a

㧉㬿兓ↅ

a. If applicable.

Ⱁ㨫抑䞷ᇭ

MARKING REQUIREMENTS

㪖㽷尐㻑

Product

Environmental protection use period (years)

Logo

ℶ❐

䘾⬒≬㔳∎䞷㦮棟 ( ㄃ )

㪖㉦

This Exfo product

10

㦻 EXFO ℶ❐

a

Battery

5

a

䟄㻯

a. If applicable.

Ⱁ㨫抑䞷ᇭ

Guide d’utilisation

FVA-600

Atténuateur variable

ii

Copyright © 2010 EXFO Inc. Tous droits réservés. La reproduction, le stockage

dans un système d’extraction ou la transmission de tout ou partie de la présente

publication, que ce soit par voie électronique, mécanique ou tout autre moyen,

notamment par photocopie, enregistrement ou autre, sans l’autorisation écrite

préalable de EXFO Inc. (EXFO), sont formellement interdits.

Les informations fournies par EXFO sont considérées comme étant exactes et

fiables. Cependant, EXFO ne saurait être tenu pour responsable de l’utilisation

de ces informations ou de la violation de brevets ou de tout autre droit de tiers

pouvant en découler. Aucune licence, implicite ou autre, n’est concédée selon

les termes du brevet d’EXFO.

Le code CAGE (code d’identification pour les entreprises et organismes

gouvernementaux américains) d’EXFO, en vertu de l’Organisation du Traité

de l’Atlantique Nord (OTAN), est le 0L8C3.

Les informations contenues dans la présente publication sont sujettes à

modification sans avis préalable.

Marques commerciales

Les marques commerciales d’EXFO sont identifiées comme telles. Cependant,

la présence ou l’absence d’une telle identification n’affecte aucunement le statut

légal des marques commerciales.

Unités de mesure

Les unités de mesure mentionnées dans la présente publication sont conformes

aux normes et aux pratiques SI.

Brevets

L’interface universelle d’EXFO est protégée par le brevet américain n° 6 612 750.

Version : 1.0.0

Contents

Informations relatives à la certification ............................................................. v

1 Présentation de l’Atténuateur Variable FVA-600 ..................... 1

Caractéristiques principales .............................................................................. 1

Sources d’alimentation ..................................................................................... 2

Applications courantes ..................................................................................... 2

Conventions ...................................................................................................... 3

2 Informations relatives à la sécurité ......................................... 4

Informations générales ..................................................................................... 4

Informations sur la sécurité électrique .............................................................. 4

3 Initiation à votre Atténuateur Variable FVA-600 ..................... 5

Mise sous et hors tension de l’unité ................................................................. 5

Description des indications affichées à l’écran .................................................. 6

Description du clavier ....................................................................................... 6

Fonctions secondaires ....................................................................................... 7

Activation de l’arrêt automatique ..................................................................... 7

Activation du rétroéclairage .............................................................................. 7

Installation de l’interface universelle EXFO (EUI) ............................................... 8

Nettoyage et connexion des fibres optiques ..................................................... 9

4 Utilisation de l’Atténuateur Variable FVA-600 ....................... 10

Sélection des longueurs d’onde ...................................................................... 10

Modification de l’atténuation ......................................................................... 10

Sélection du mode de fonctionnement ........................................................... 10

Modification de la taille de pas de l’atténuation ............................................. 13

Modification de la taille de pas de la puissance .............................................. 13

Modification de la longueur d’onde ............................................................... 13

Réinitialisation de l’appareil ............................................................................ 14

Utilisation du port USB ................................................................................... 14

5 Entretien .................................................................................. 15

Nettoyage des connecteurs de l’interface universelle EXFO (EUI) .................... 16

Rechargement des piles .................................................................................. 18

Remplacement des piles ................................................................................. 18

Vérification de l’atténuation de l’écran ........................................................... 19

Rétablir les paramètres par défaut .................................................................. 19

Recyclage et mise au rebut (Union européenne uniquement) ......................... 20

6 Dépannage .............................................................................. 21

Résolution des problèmes courants ................................................................ 21

Contacter l’équipe d’assistance technique ...................................................... 22

Transport ........................................................................................................ 23

7 Garantie ................................................................................... 24

Informations générales ................................................................................... 24

Responsabilité ................................................................................................. 25

Exclusions ....................................................................................................... 25

Certification .................................................................................................... 25

Entretien et réparation ................................................................................... 26

EXFO Centres de service dans le monde .......................................................... 27

FVA-600 iii

Contents iv

A Caractéristiques techniques ................................................... 28

B Configurations de test classiques .......................................... 29

BERT et analyse de protocole .......................................................................... 29

Surcharge et sensibilité ................................................................................... 29

Calcul du S/B ................................................................................................... 30

ROADM ........................................................................................................... 30