EXFO FTB-635 Wideband Copper and DSL Test Module - Manual (Page 327)

Copper and xDSL Tests 319
21 xDSL Test Results
The xDSL test page displays a line status indicator on the right-side bar
(green round icon above Start/Stop button). Results obtained include
upstream and downstream throughput and noise margin.
Summary
The Summary tab allows you to view the overall pass/fail status and details
of the test results.
When the Line mode is set to ADSL2+ or VDSL2 bonding mode, there will
be 2 sections of results.

Sync Time is a count-up timer that starts counting only when the Line
Status reaches Show Time. In the case of bonding, both lines must
reach Show Time before the counter starts.

Line Status displays the status of the line under test during negotiation
with the DSLAM. The value changes from Idle /Activate /Handshake
/Training /Show Time for ADSL2+ or VDSL2 mode.
Note: When loading firmware into the Broadcom chipset, the Line Status value
displays Loading M:SS, where M:SS is a count down timer.