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A.2
Internal interfaces
A.2.1
Pin assignment of the internal interfaces
Interface
Memory
Bus board
Power supply
Backup battery
USB port
M.2 interface
Port for SSD drive bay
A.2.2
USB ports
Pin
1
2
3
4
5
6
7
8
9
10
SIMATIC IPC BX-39A
Operating Instructions, 07/2022, A5E50715883-AA
Position Description
Internal
1 SODIMM socket, 64-bit
Internal
Socket for bus board, assigned with PCIe bus signals
Internal
12-pin connection plug for power supply
Internal
Power supply for backup battery, 2-pin socket
Internal
USB channel, 10-pin header
Internal
M.2 Key B, assigned PCIe bus signals
Internal
Socket for SSD drive bay, assigned PCIe bus signals
Designation
VBUS_USB1
VBUS_USB2
USB1_D-
USB2_D-
USB1_D+
USB2_D+
GND
GND
GND
GND
Hardware description
A.2 Internal interfaces
95
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