Siemens ANSI/UL 1066 Application Manual page 86

Breaker Data Adapter (BDA)
WL Circuit Breaker
Figure 4-14
Setting up a data communications connection to the BDA with WindowsXP, part 3:
Once the data communications connection has been successfully set up, WindowsXP establishes a connection with the BDA when you click "Dial."
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WL PROFIBUS Communication and Electronic Accessories • July 2004