EXFO FTB-800 Series for FTB-1 - Manual (Page 451)

Test Functions
NetBlazer 441
Pointer Adjustment
Pointer Adjustment
From the Test menu, tap Functions, and the Pointer Adjustment tab.
TX Pointer Adjustment
Note: Only available in Coupled topology.
The pointer adjustment supports two modes of operation: Manual and
Sequence. Both modes offer the generation of pointer events even when
the test is not started.
TX Pointer Adjustment - Manual Button
Step

Value
For STS/AU: Select the number of positive (Increment) or negative
(Decrement) pointer adjustments to include into the STS-n (SONET) or
AU-n (SDH): 1 (default) to 1000. For multiple pointer adjustments, the
pointer adjustment rate is 1 adjustment at every 4 frames.
For VT/TU: Select the number of positive (Increment) or negative
(Decrement) pointer adjustment to include into the VTn (SONET) or
TU-n (SDH): 1 (default) to 1000. For multiple pointer adjustments, the
pointer adjustment rate is 1 adjustment at every 4 multiframes.

Increment button sends the positive pointer adjustment defined.

Decrement button sends the negative pointer adjustment defined.

Pointer Value indicates the current pointer value.