Siemens SINAMICS S120 Manual page 330

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9.4 G20, CBC10 Communication Board
Interface overview
Figure 9-2
X451 CAN bus interface
CAN bus interface -X451 features the following socket assignments:
Table 9- 1
Connector
Connector type: 9-pin Sub-D socket
NOTICE
Destruction of the CAN interface due to the wrong connector
If PROFIBUS connectors are connected to CAN bus interfaces during operation, this may
lead to the CAN interfaces being destroyed.
• Do not connect PROFIBUS connectors to CAN bus interfaces.
328
CAN CBC10 Communication Board, interface overview
CAN bus interface X451
Pin Designation
1 Reserved
2 CAN_L
3 CAN_GND
4 Reserved
5 CAN_SHLD
6 GND
7 CAN_H
8 Reserved
9 Reserved
Technical data
CAN signal (dominant low)
CAN ground
Optional shield
CAN ground
CAN signal
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A