EXFO Photonic Solutions Div. FVA-600: 3 Getting Started with Your FVA-600 Variable Attenuator

3 Getting Started with Your FVA-600 Variable Attenuator: EXFO Photonic Solutions Div. FVA-600

3 Getting Started with Your

FVA-600 Variable

Attenuator

Turning the Unit On and Off

When you turn off the FVA-600, it saves the current attenuation, wavelength,

operation mode, and step size.

IMPORTANT

If you remove batteries (and the AC adapter is unplugged), the unit

will turn off without saving the above values.

If the battery level is low (and the AC adapter is unplugged), the unit

will save the above values and turn off.

To turn on the unit:

Press . The unit displays EXFO for a few seconds.

You may use it immediately under normal conditions unless the unit was not shut

down properly. In this case, the unit will mechanically recalibrate itself.

To turn off the unit:

Hold down a few seconds. The unit saves current settings automatically.

Display Description

Total attenuation in relative or power mode

Step size

Edition value for wavelength, power

Selected wavelength

Indicates a calibrated

wavelength in

wavelength edition

mode

AC adapter

plugged in

Batteries in use

(with level)

Total attenuation in absolute mode (dB)

Auto-off activated

Relative attenuation in relative mode (dB)

or power in power mode (dBm)

FVA-600 5

Getting Started with Your FVA-600 Variable Attenuator 6

Keypad Description

The functions below are obtained by pressing on the corresponding buttons.

Increases value

(attenuation, power,

edition)

Abs/

Rel/

λ

Pwr

Step

Decreases value

Select

Size

(attenuation, power,

edition)

Confirms selection

Secondary Functions Keypad

The functions below are obtained by pressing and holding the button for a few

seconds.

Activating Automatic Shutdown (Auto-Off)

When auto-off is activated, the unit will turn off after

10 minutes of idle time.

To deactivate/reactivate auto-off:

When unit is on, press rapidly.

G

oes

to

next

prese

l

ecte

d

Turns on unit

wavelength

Auto-off mode

Confirms wavelength edition

Esc key

Switches between

measurement modes

Goes to next step size in list

Esc

Turns off unit

Edits selected

wavelength

Switches backlight

Backlight

Edit λ

Increases value rapidly

on or off

Decreases value rapidly

Searches for

Zero

Edit Pwr/Ref

reference positioning

Edits power for power

and reset to

operation mode and takes

attenuation in use

reference for relative

operation mode

Activating the Backlight

When operating the unit in the dark, use the backlight to make data on the display

more visible. The keypad buttons will also light for about 10 seconds.

Note: When the backlight is activated, you must always press a button once to

light the keypad, then press the actual button you want.

To activate/deactivate the backlight:

Abs/

Rel/

From the normal operating mode, hold down for a few seconds.

Pwr

Installing the EXFO Universal Interface (EUI)

The EUIfixed baseplate is available for connectors with angled (APC) or non-angled

(UPC) polishing. A green border around the baseplate indicates that it is for

APC-type connectors.

Green border

Bare metal

indicates APC

(or blue border)

option

indicates UPC option

To install an EUI connector adapter onto the EUI baseplate:

1. Hold the EUI connector adapter so the dust cap opens downwards.

2 3 4

2. Close the dust cap in order to hold the connector adapter more firmly.

3. Insert the connector adapter into the baseplate.

4. While pushing firmly, turn the connector adapter clockwise on the baseplate to

lock it in place.

FVA-600 7

Getting Started with Your FVA-600 Variable Attenuator 8

Cleaning and Connecting Optical Fibers

IMPORTANT

To ensure maximum power and to avoid erroneous readings:

³ Always clean fiber ends as explained below before inserting

them into the port. EXFO is not responsible for damage or errors

caused by bad fiber cleaning or handling.

³ Ensure that your patchcord has appropriate connectors. Joining

mismatched connectors will damage the ferrules.

To connect the fiber-optic cable to the port:

1. Inspect the fiber using a fiber inspection microscope. If the fiber is clean,

proceed to connecting it to the port. If the fiber is dirty, clean it as explained

below.

2. Clean the fiber ends as follows:

2a. Gently wipe the fiber end with a lint-free swab dipped in isopropyl alcohol.

2b. Use compressed air to dry completely.

2c. Visually inspect the fiber end to ensure its cleanliness.

3. Carefully align the connector and port to prevent the fiber end from touching the

outside of the port or rubbing against other surfaces.

If your connector features a key, ensure that it is fully fitted into the port’s

corresponding notch.

4. Push the connector in so that the fiber-optic cable is firmly in place, thus

ensuring adequate contact.

If your connector features a screwsleeve, tighten the connector enough to firmly

maintain the fiber in place. Do not overtighten, as this will damage the fiber and

the port.

Note: If your fiber-optic cable is not properly aligned and/or connected, you

will notice heavy loss and reflection.

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