Bus Board - Siemens SIMATIC Box PC 840 Manual

Hardware Information
7.6

Bus Board

7.6.1 Design and Mode of Operation
The bus board is designed as a passive link between the motherboard and the
expansion modules
The bus board has two PCI slots (1x short, 1x long), two long shared ISA/PCI and
a long ISA slot. Expansion modules corresponding to ISA specifications (Rev. 3.1)
and PCI specification (Rev. 2.0) can be inserted. All PCI slots are master capable.
The expansion modules are powered via the link between the bus board and the
motherboard.
Figure 7-10 Bus Board
7-30
It is mounted by means of a screw.
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SIMATIC Box PC 840 Manual
A5E00085984-04