Operating instructions

Table Of Contents
Detailed descriptions
16.2 Bus board
SIMATIC IPC627C
144 Operating Instructions, 11/2010, A5E02669068-02
Pin Assignment of the USB 2.0 interface, X42
Pin no. Short description Meaning Input / Output
1 VCC + 5 V, fused Output
2 USB5 USB5_M Input / Output
3 USB5 USB5_P Input / Output
4 GND Ground -
S1 S Shield -
S2 S1 Shield -
Note
For detailed information on the pin assignments of the interfaces, please contact Customer
Support (http://www.siemens.com/automation/service&support
) or the Repair Center.
16.2 Bus board
16.2.1 Layout and principle of operation
The bus board is designed as a link between the motherboard and the expansion modules. It
is secured with five screws.
Two models of the bus board are available:
Variant 1 has two PCI slots (1x short, 1x long). It can host expansion modules conforming to
PCI specification (Rev. 2.2) for 5 V and 3.3 V modules. All PCI slots are master compatible.
The expansion modules are supplied with power via the bus board to motherboard
connection.
12V power supply connection for WinAC module
Slot 2
Slot 1