Only relevant parameters and edition fields are shown in the GUI at any time depending 
on the selected channel coding scheme. 
 
  Clock Toggle buttons 
Data/clock selection toggle buttons for each channel. The Data(D), Clock:2 
(C/2), and Clock:4 (C/4) can be independently assigned to each channel. The 
nominal timing for the 50% level in the rising edge for the clock signals is 
located in the center of the eye for the current symbol. 
  Channel 
Independent checkboxes allow the definition of waveforms for Channel 1, 
Channel 2, Channel 3, or Channel 4. One of the boxes will be always checked. 
When pressing the ‘Send To Instrument’ button, the corresponding waveforms 
are sent to all channels that are checked. 
  Segment Number 
Target segment for each channel can be defined independently. This field is 
configurable only for channels sourced from ‘extended’ memory. The segment 
range is 1 to 16777216. For channels sourced from ‘Internal’ memory, the 
segment is always set to 1, and it displays the text ‘Internal’.