Hardware description
A.3 Bus board
SIMATIC IPC BX-39A
Operating Instructions, 07/2022, A5E50715883-AA
97
Variant 2 (2 slots)
①
Slot X110 PCI Express x4 (mechanical x8)
②
Slot X111 PCI Express x1 (mechanical x4)
③
Power supply connection; see Pin assignment power supply connection for expansion cards
(Page 97)
A.3.2
Pin assignment power supply connection for expansion cards
Pin
Name
Meaning
Input/Output
1
GND
Ground
-
2
+12 V
1
12 V voltage
Output
3
GND
Ground
-
4
+5 V
1
5 V voltage
Output
5
GND
Ground
-
6
+ 3.3 V
1
3.3 V voltage
Output
1
max. permitted current: 1 A; with this power requirement, the total power requirement of
the PCI slots must not be exceeded.
