Advantech MIC-3043 3.5.1 AC/DC Power Connector CN3, CN17, Power Switch, 5 V I/O voltage selection

3.5.1AC/DC Power Connector (CN3, CN17)

These connectors accept the separate AC/DC power input.

Note: The power connector CN17 is not compatible with ATX pin assignment. Do not use an ATX power supply instead of DC power supply.

3.5.2 Power Switch

This connector provides power control over the plug-in power module. If the CompactPCI chassis provides a 2-pin power switch cord, connect this cord to the CN15 connector to control the power by the power switch.

3.5.3 V I/O Voltage Selection

This jumper is used to select the V I/O voltage. The backplane allows

V I/O to be set to either 5 V or 3.3 V. Since the default is configured for use with 5V CompactPCI boards (blue-keyed connectors), once the jumper is set to 3.3 V, the CompactPCI keys must be changed to 3.3 V at the same time (as yellow-keyed connectors).

Figure 3.5: V I/O voltage selection

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