Hardware Information

7.6Bus Board

7.6.1Design and Mode of Operation

The bus board is designed as a passive link between the motherboard and the expansion modules. It is mounted by means of two screws.

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 7-10 Bus Board

SIMATIC Box PC 620 Manual

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A5E00131465-01

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Siemens 620 appendix Bus Board Design and Mode of Operation