Siemens SCALANCE X-200 Operating Instructions Manual page 223

6.3 Configuration using Web Based Management (WBM) and Command Line Interface (CLI)
Note
If DCP is turned off, it may not be possible to configure all switches with the PST tool.
The following settings can be made for the displayed ports:
Symbol
SCALANCE X-200
Operating Instructions, 12/2011, A5E00349864-19
Configuration / diagnostics using remote mechanisms
Meaning
Port sends and receives DCP frames
DCP frames are received but not sent
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