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→Power Distribution
[[File:cw308_switch.png|600px]]
The following summarizes the switchesswitch information:{| class="wikitable"!Switch!Function!Location!Notes|-|S1|Switch 5.0V from DC-Power Jack On/Off|Lower Left|Selects if DC 5.0V from DC-Jack is "always on", or gets gated by 3.3V source from 20-pin connector ('auto'). If 'auto' mode selected and no 20-pin cable connected, this is equivalent to turning the main supply to the board on/off. Thus when using the board stand-alone S1 acts as a power switch for the board.|-|S3|Choose 5.0V source to connect to victim board.||Can be used to turn on/off 5.0V to victim board.|-|S3-S7|Selected fixed LDO input source.||Can be used to turn on/off certain LDOs.|-|S8|Select adjustable LDO input source.||Select 5.0V or 3.3V input (3.3V comes from ChipWhisperer).|-|S2|Choose 3.3V source to connect to victim board.||Select 3.3V from 20-pin ChipWhisperer cable, or local LDO.|}
=== External Power Sources ===