EXFO FTB-860, User Manual

Page: 284 / 409

Test Control
272
FTB-860/880
Lpbk Tool Button (Loopback Tool)
Lpbk Tool Button (Loopback Tool)
The Loopback Tool provides the capability of looping back the Ethernet
frames/packets that are received on the port unused by the main test
application.
Pressing the Lpbk Tool button opens the Loopback Tool pop-up and
powers up the port unused by the main test application (it does not start
looping back the frames yet). The Loopback Tool starts looping back the
Ethernet frames/packets that are received when pressing on the
Loopback
button (from the Loopback Tool tab).
Note:
The Lpbk Tool button is available when the main test application is any
Ethernet test application at the exception of Through mode .
Note:
The Loopback Tool is independent from the main test Start/Stop , Reset
and Test Timer .
Note:
Enabling/disabling the Laser control affects both the main test application
and the Loopback Tool when applicable (if both test and tool are using an
optical port).