User guide

If the pattern has already been saved earlier, the saved file is updated.
Otherwise, the Windows standard Save As dialog box opens, where you can
define the file's path and name.
The available file formats to save the file in are:
• Pattern File (*.ptrn) in binary (8 bits/byte), hex (4 bits/byte), 01 (1 bit/byte), or
symbol format
• ASCII Pattern Files (*.txt)
See “Pattern File Specifications” on page 66 for descriptions of these file types.
If you want to save the pattern file in one of the 12 memory slots, use the file names
from
UPAT1.ptrn through UPAT12.ptrn respectively.
Loading Patterns to the Pattern Generator and Error Detector
The recommended way to load the data patterns to the pattern generator and error
detector is to use the Pattern Select Form dialog box.
1
Click Pattern Select menu item from the Pattern submenu.
The Pattern Select Form dialog box opens.
2
Select one of the following pattern types for the pattern generator, and follow
the next required action as listed below.
Table 6
Pattern Type Next Required Action
User Pattern Browse for the desired pattern file.
Memory User Pattern Select memory slot (1 - 12).
2^n -1 PRBS Select the pattern size.
2^n PRBS Select the pattern size.
Mark Density Select the pattern size and the mark
density ratio.
Zero Sub Select the zero substitution rate.
Setting up Patterns 3
Agilent J-BERT N4903B High-Performance Serial BERT 73