Design and Mode of Operation
The bus board is designed as a passive link between the motherboard and the
The bus board has two ISA slots and two PCI slots, as well as a shared
ISA /PCI slot. The expansion modules are powered via the link between the bus
board and the motherboard. An external power supply (+5V and +12V) is provided.
Figure 8-8 Bus Board
It is mounted by means of two screws.
SIMATIC Box PC 620 Manual