
enabled, the internal USB hub and any devices that are connected to the front USB ports are
automatically mapped to the target that is connected to the user through the local port connection.
When you switch the KVM connection to a different port, the USB pass-through also switches to that port.
The pass-through ports are connected to a target by an on-board hub and a second USB connector.
Each target port on the unit's back panel has two USB cables with connectors. The cable with the black
connector is for theKVMconnection and the cable with the yellow connector is for the USB pass-through
connection. The two front panel pass-through ports are mapped to an internal USB hub and pushed to
the yellow USB cable. When you switch to a port, the keyboard and mouse traffic from the local port routes
through the black connector to the target.
You can enable and disable binding using keystroke commands or the on-screen display. When port
binding is disabled, pass-through port selection is independent of the KVM session selection and you can
switch a USB hub and its connected devices to a port different from what you are connected to. You can
only use keystroke commands to select a target for the pass-through ports. If the target selected for pass-
through is different from the target selected for the KVM session, the green LED on the selected pass-
through port flashes slowly and the green LED for the selected KVM session illuminates.
2.4.1 Pass-through USB port commands
The pass-through USBport commands allow you to select a target PCto control the USBhub ports, move
or disable the ports and enable or disable port binding. When you initiate keystroke port selection, USB
pass-through port binding is automatically disabled.
KEY SEQUENCE VALUE ACTION
Ctrl+Ctrl+U+[nn]+Enter Enter a value between 01 and 16 where nn is the
value format.
Selects the PC target that controls the USB hub
ports.
Ctrl+Ctrl+U+C+Enter N/A Moves USB hub ports to currently selected KVM
session channel.
Ctrl+Ctrl+U+D+Enter N/A Disables USB hub ports. No target connected to
hub.
Ctrl+Ctrl+B++Enter N/A Enables port binding.
Ctrl+Ctrl+B-+Enter N/A Disables port binding.
Table 2.6 Pass-through USB Port Commands
2.5 Operating Scan Mode
The switch supports Scan mode which allows you to scan for newly connected target devices. You can
control Scan mode with keystroke commands or from the on-screen display. You can set a scan to run in
intervals between 2 and 60 seconds. The default scan interval is 30 seconds. The target device must be
connected to a target port and powered on to be detected during Scan mode.
2.5.1 Scan mode commands
The Scan mode commands allow you to determine scan intervals, start or stop a scan and enable or
disable mouse movement. When you initiate interval scanning, USB pass-through port binding is
automatically disabled.
When interval scanning is stopped, USB pass-through port binding is automatically enabled unless you
disable it by keystroke command (Ctrl+Ctrl+B-]+Enter)or through the on-screen display.
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