Test Functions
Power Blazer 623
200/400G Advanced - Pre-Emphasis/RX EQ
200/400G Advanced - Pre-Emphasis/RX EQ
Note: Only available when using OSFP/QSFP56/QSFP56-DD transceiver on
FTBx-88460 module.
From the Test menu, tap Functions, 200/400G Advanced, and the
Pre-Emphasis/RX EQ tab.
TX
PAM-4 Lane indicates the lane numbers.
Pre Cursor is configurable from -1000 to 1000.
Main Cursor is configurable from -1000 to 1000.
Post Cursor is configurable from -1000 to 1000.
Lower Eye is configurable from 500 to 1500.
Upper Eye is configurable from 1500 to 2500.
Swing is configurable from 60% to 120% in step of 10%.
Restore TX Defaults: Reverts the TX pre-emphasis to their default
values.
RX
CTLE allows selecting the continuous time linear equalization:
0 to 9.0 dB (64 possible values).
DSP Mode allows selecting the digital signal processor mode:
DSP Mode Description
FFE+SLC Feed-Forward Equalizer +
PAM-4 Slicer
FFE+DFE Feed-Forward Equalizer +
Decision Feedback Equalizer