EXFO OSA20 Getting Started page 7

To select a parameter, command or function on the screen, touch the corresponding
command with the tip of your finger or the stylus, without tapping it.
The following gestures are available on the multi-touch screen:
Gesture
Touch
Pan
Pinch/Stretch
Long press
USB ports
The
enable you to connect USB devices such as:
Keyboard and mouse if needed (see OSA20 User Guide, Connecting a Mouse and

Keyboard to the OSA20 on page 19)
USB key or hard disk to export your measurement results

An external multi-touch screen

The USB ports are SELV classified; you must only connect them to interfaces of the same
type.
Optical Connectors
The two following optical connectors, protected by a dust cap, are located on the front
panel:
The Calibration Output label identifies the ELED and acetylene source output, used for

user calibration of the wavelength (see OSA20 User Guide, Performing a User
Calibration on page 144).
The
safety instructions for proper use: see OSA20 User Guide, Performing a User Calibration
on page 144.
The Optical Input label identifies the optical input, used to connect a light source.

The two optical connectors are mounted on a plate, which enables you to access the
internal optical connectors for cleaning (see OSA20 User Guide, Cleaning Optical
Connectors on page 143).
OSA20
Gently touch something on the screen with your finger or the stylus to
select it.
Drag your finger or the stylus across the screen.
Pinch two fingers together or move them apart to zoom in or out:
To zoom in, touch two points on the screen and move your fingers

away from each other.
To zoom out, touch two points on the screen and move your fingers

toward each other.
Hold your finger or stylus on the graph until a complete circle appears
around it to automatically activate the rectangle zoom (see OSA20 User
Guide, Adjusting the Scale of the Graph on page 60).
label identifies the two USB 2.0 type-A ports located on the front panel. They
label indicates an injury hazard. The user calibration output requires special
Introducing the OSA20
Description
Product Overview
5