User guide
Operation 
PRBS Generator 10 Gb/s User Guide    23 
1.
Remove any dust or loose particles using a low-pressure air source.  
2.  Moisten a lint-free swab with isopropyl alcohol. Do not saturate the 
swab. 
3.  Minimize the wicking of the alcohol into the connector structure. 
4.  Clean the mating plane surfaces and threads. 
5.  Allow alcohol to evaporate, and then use a low-pressure air source to 
blow surfaces clean.  
6.  Make sure no particles or residue remains. 
7.  Inspect connector for damage. 
4.2  Configuring Patterns or Mark Density 
To configure the N4970A for the desired patterns (P) or mark space densities 
(D) apply the appropriate jumper to the configuration connector on the back of 
the N4970A. In the example below we are setting the pattern to 2
31
 -
1 and the 
mark space density to ½. 
Figure 6.  N4970A configuration connector 










