ATEN 2-Port USB 3.0 4K DisplayPort Dual-Display KVMP Switch - Manual (Page 27)

Chapter 3. Basic Operation
19
Port ID Numbering
Each KVM port section on the CS1942DP / CS1944DP switch is assigned a
port number. (1 or 2 for the CS1942DP; 1 to 4 for the CS1944DP). The port
numbers are marked on the rear panel of the switch (see page 8 for details).
The Port ID of a computer is derived from the KVM port number it is
connected to. For example, a computer connected to KVM port 2 has a Port ID
of 2.
The Port ID is used to specify which computer gets the KVM, USB peripheral,
and audio focus with the Hotkey port selection method (see page 22 for
details).
Alternative Manual Port Selection Settings
When Hotkey Setting Mode has been activated, pressing [S] will invoke the
alternative front panel pushbutton manual port selection functions, as
explained below:
 Press a port selection pushbutton once to bring only the KVM focus to the
computer attached to its corresponding port.
 Press a port selection pushbutton twice to bring the audio focus to the
computer attached to its corresponding port.
 Press and hold a port selection pushbutton for more than 2 seconds to
bring the KVM, audio and USB focus to the computer attached to its
corresponding port.
 Press and hold port selection pushbuttons 1 and 2 for more than 2 seconds
to start Auto Scan Mode, see page 23 for details.