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PCI and CAN Direct Slots
The PCI slots on the SIB accommodate a variety of special function cards, including I/O boards
or an ANCB board. Four PCI slots are equipped in the SYSCON2.1; however, typically only
three slots are available for use in the standard configuration, because one SYSCON slot is
used for serial/debug port hardware.
In addition to PCI type cards, the card slots can also accommodate Maxum CAN I/O cards.
The small green connector in line with the PCI slot allows CAN I/O cards to be installed in the
slot. When a CAN card is installed, the green connector provides the power and CAN signals
for the card. The PCI slot connector has no electrical connection for CAN cards.
Only use cards specified and sold by Siemens for the SYSCON2.1. Installation of a card that
is not approved by Siemens into a SYSCON2.1 PCI slot, may damage both the card and the
Network Expansion Slot
The Ethernet Switch Board (or Ethernet Switch Board with Fiber) plugs into this connector,
located on the far right side of the SYSCON2.1. The connector slot provides power to the
Ethernet Switch, but no communication. All communication between the Ethernet Switch and
the SYSCON2.1 is through a short CAT5 Ethernet Cable that connects from the CAC3 to the
Ethernet Switch.
Maxum II Reference Manual
Manual, 7/2017, 2000596-001
Electronic Compartment Component Descriptions and Maintenance Procedures
2.3 System Controller Version 2.1 (SYSCON2.1)


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