4 Ports USB 2.0 KVM Switch with HUB and Audio User's Manual
2.2 LED Indicators
Host Selected Indicators (RED)
ON: Indicates which PC is available and selected.
Flash: Indicates which Host PC is selected but is not available
Hub Selected Indicators (GREEN)
Indicates which PC is connecting with USB downstream ports..
Hub auto-switch / Auto-Scan Indicator (GREEN)
ON:
Hub Auto-Switch mode is active. The USB HUB will switch with PC.
OFF: Hub Auto-Switch mode is inactive. The USB HUB is independent from
PC and must be switched by hot key.
Flash: Auto-Scan mode is active.
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