D-Link DKVM-4K Quick Installation Manual page 6

Switching with the DKVM-4K
You can also conveniently command KVM to switch ports through simple key sequences.
Press the Scroll Lock key twice with-in 2 seconds to enter Hot Key switching
mode. A beep confirms that the Hot Key mode is activated.
Scroll Lock + Scroll Lock +
Scroll Lock + Scroll Lock +
Scroll Lock + Scroll Lock +  : Switches to PC 1.
Scroll Lock + Scroll Lock + 2 : Switches to PC 2.
Scroll Lock + Scroll Lock + 3 : Switches to PC 3.
Scroll Lock + Scroll Lock + 4 : Switches to PC 4.
Scroll Lock + Scroll Lock + S : Activates Auto Scan Mode. Each
computer will be scanned every 10 seconds.
Scroll Lock + Scroll Lock + B : Beeper ON /OFF
To get out of Auto Scan Mode, Press any key or SPACE bar.
Hot Key Menu
: Switches Previous Channel.
: Switches Next Channel.
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