Diamond Systems Athena III Podręcznik użytkownika - Strona 14
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POWER SECTION
The power section provides the means to bring power to the system. The schematic below indicates the power
routing between the input power connector and the Athena III SBC through the panel I/O board. Power may be
provided in several methods:
1. +5V in from the input power connector directly to the panel I/O board, using either the front panel switch
or a direct connection, and then the Athena III SBC through the SBC's input connector.
2. Vin (8-30VDC) from the input power connector to a connector leading to an internal DC/DC power supply,
whose output is driven directly onto the PC/104 bus using the PC/104 bus connectors on the DC/DC
power supply. The Vin may be routed to the power supply connector either through the front panel switch
or through a direct connection.
3. Same as #2 above, except the +5VDC and optional +12VDC outputs of the DC/DC power supply are
routed back to the panel I/O board and then connected to the Athena III SBC through the SBC power
input connector.
The switch bypass jumpers are 0-ohm ¼ watt T/H resistors. To use the panel power switch, the resistor is cut
away, opening the circuit.
The +12V input option jumper is also a 0-ohm ¼ watt T/H resistor used to route +12V from the Vin pin to the +12V
pin on the Athena III power connector. If the Vin voltage is not +12V then the resistor is cut away to isolate the
+12V pin on the Athena III primary power connector.
PC/104™ is a trademark of the PC/104 Embedded Consortium.
All other trademarks are the property of their respective owners.
Athena III Panel I/O Board User Manual Rev A
www.diamondsystems.com
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