4-Port Ultra 4K-60Hz HDMI KVM Switch with USB 2.0 and Audio
6
control
Disable Unused Ports
FRONT PANEL CONTROL
To switch ports using the front panel, press the M1 or M2 button to navigate from computer to
computer. The numbered LED lights will indicate which computer is selected.
The following commands can be used to disable ports 4 and 3 to better suit 2 and 3 port configurations.
HOTKEY COMMANDS
A Hotkey command is a keyboard sequence used to trigger an action on the UHDN-4P through the use
of the keyboard connected on the USB port of the UHDN-4P. To activate the hotkey sequence, press the
CTRL key twice and then enter the desired hotkey commands. Hotkey commands are listed below.
RS-232 CONTROL
RS-232 control allows for remote control of the UHDN-4P. See the section on establishing an RS-232
connection in this manual. Set the connection to 115200 N,8,1, No flow control. RS-232 commands are
listed below.
COMMANDS
HOTKEYS
RS-232 CONTROL
Switch all USB devices, audio and
video
[CTRL] [CTRL] [port #] [ENTER]
*Please note there is no “
m
” for this command
//
m
[port #] [ENTER]
Switch Audio Only
[CTRL] [CTRL]
a
[port #] [ENTER] //
a
[port #] [ENTER]
Switch KVM Only
[CTRL] [CTRL]
c
[port #] [ENTER] //
c
[port #] [ENTER]
Switch USB 2.0 Only
[CTRL] [CTRL]
u
[port #] [ENTER] //
u
[port #] [ENTER]
Learn EDID
[CTRL] [CTRL]
e
[ENTER]
//
e
[ENTER]
Trigger Hotplug
[CTRL] [CTRL]
h
[ENTER]
//
h
[ENTER]
Reset Software
[CTRL] [CTRL]
r
//
r
[ENTER]
Factory Defaults
[CTRL] [CTRL]
f
//
f
[ENTER]
Same as front panel
◄
M1 button
[CTRL] [CTRL]
↑
N/A
Same as front panel M2
►
button
[CTRL] [CTRL]
↓
N/A
Get Port Status
N/A
//??[ENTER]
COMMANDS
HOTKEYS
RS-232 CONTROL
Disable Port 4
[CTRL] [CTRL]
d 4
[ENTER]
//
d 4
[ENTER]
Disable Port 3 and 4
[CTRL] [CTRL]
d 3
[ENTER]
//
d 3
[ENTER]
NOTE:
Factory reset to enable port 3 - 4
