J23: Sleep Switch Connector Enable/Disable; Cn3 Ð Universal Serial Bus Connectors - SOYO 5EA5 User's Manual & Technical Reference

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Hardware Setup

J23: Sleep Switch Connector Enable/Disable

Toggle this jumper to force the system into power saving (Green) mode.
Any hardware IRQ signal makes the system wakeup.
CN3 – Universal Serial Bus Connectors
Attach 9-pin USB cable to these connectors for external USB device.