EXFO FTB-800 Series for FTB-1 - Manual (Page 111)

Test Setup - Test Configurator, Timer, and System
NetBlazer 101
BERT
BERT
From the Test menu, tap Setup, Test Configurator, and tap on the BERT
block.
Pattern
The icon next to the Pattern label indicates the status of the received
pattern signal. Refer to Status Bar on page 26 for more information.

Coupled RX to TX check box, when selected (default), allows
coupling both the TX and RX signal with the same test pattern.
For a framed test, the Coupled RX to TX check box is selected and
cannot be cleared.

RX Pattern Analysis check box is available with a framed test. When
selected (default), monitors the received traffic pattern. When not
selected, analyzes the live traffic without test pattern thus squelching
the pattern loss, bit error, and no traffic indications.