Description   
3.5 Design 
  SIMATIC IPC427C 
18  Operating Instructions, 04/2009, A5E02414743-01 
3.5.2  Connection components 
Ports and power supply     
 
Location of connection elements (version with PROFIBUS or CAN) 
 
    
 
 
Pos  Name  Description 
①  24 VDC  Connection for a 24 V DC power supply   
②  DVI/VGA    DVI/VGA connection for CRT or LCD monitor with DVI interface 
③  USB    4 USB 2.0 connections, high-speed / low current 
④  PN/IND. ETHERNET    RJ45 Ethernet connection 1 (exclusive PCI interrupt) for 10/100/1000 Mbps 
⑤  PN/IND. ETHERNET    RJ45 Ethernet connection 2 (shared PCI interrupt) for 10/100/1000 Mbps  
PROFIBUS DP/MPI   ⑥ 
CAN fieldbus 
PROFIBUS DP/MPI interface (RS 485 isolated), 9-pin Cannon socket or CAN fieldbus  
(on request) 
⑦  COM1    Serial port (RS232) 9-pin Cannon connector 
⑧  USB strain-relief 
fastener 
The USB strain relief must be fastened to the device enclosure with an oval-head screw 
(M4 thread). The USB cables can be fastened to the strain-relief assembly with a cable 
tie. 
⑨  PE terminal    The PE terminal (M4 thread) must be connected to the protective ground conductor of the 
plant, in which the device is to be installed. The minimum conductor cross-section may not 
be less than 2,5 mm
2
. 
 
Location of the connection elements (second COM interface) 
 
 
 
Pos  Designation  Description 
①  COM2  Serial port (RS232) 9-pin Cannon connector