IOGear GCS1804 - Manual (Page 16)

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Port Numbering
Each CPU port on the KVM is assigned a port number (1, 2 for the GCS1802 and 1,2,3,4 for the
GCS1804). The CPU port numbers are marked on the rear panel of the switch.
The Port ID of a computer is the same as the CPU port number on the KVM. For example, a computer
connected to CPU port 2 has a Port ID of 2. The Port ID is used to specify which computer gets the KVM,
USB hub, and audio focus when using the Hotkey or OSD direct port selection method.
Hot Plugging
The KVM supports USB hot plugging – with no need to shut the unit down, components can be removed
and added to the installation by unplugging or connecting their cables from the USB hub ports.
Before you begin