TECHNICAL SPECIFICATIONS
VIDEO
Format HDMI 1.4
Maximum Pixel Clock 300 MHz
Input Interface (4) HDMI 19-pin (female)
Output Interface HDMI 19-pin (female)
Max Resolution 4Kx2K (3840x2160
@30Hz),
1080P @ 60Hz, and 1080P
3D @60Hz
DDC 5 volts p-p (TTL)
Input Equalization Automatic
Input Cable Length Up to 20 ft.
Output Cable Length Up to 20 ft.
Bandwidth Frequency 10.2 Gbps
USB
Signal Type USB 2.0, 1.1, and 1.0 w/
Input Interface (4) USB Type B (female)
Output Interface
internal hub
(2) USB Type A (female) for
keyboard and mouse only
(2) USB Type A (female) for
USB 2.0
OTHER
Power External 100-240 VAC/
Dimensions 1.71” H x 6.34” D x 12.5” W
Weight 3.5 lbs.
Approvals UL, CE, ROHS Compliant
Operating Temp. 32-131 °F (0-55 °C)
Storage Temp. -4-185 °F (-20-85 °C)
Humidity Up to 95%
5VDC4A @20W
WHAT’S IN THE BOX
PART NO. QTY DESCRIPTION
HDN-4Plus-S 1 4-Port 4K Ultra HD HDMI and
USB 2.0 Switch.
Includes: [HDN-4Plus &
(PS5VDC4A)]
User Manual 1
HDNET-4Plus
4-Port HDMI KVM Switch with
4K Ultra HD and USB 2.0 Sharing
Access and Control Four 4K Ultra HD Computers
Using Only One USB Keyboard, USB Mouse and
HDMI Monitor with Full Emulation
CONTROL
Front Panel Tactile Switch
RS-232 Via Control @ 9600 bps
Hotkeys Via Keyboard
Emulation Keyboard and mouse only
Designed and Manufactured in the USA
800.AVI.2131
Tel: (818) 503-6200 Fax: (818) 503-6208
11651 Vanowen St. North Hollywood, CA 91605
SmartAVI.com
USER MANUAL
INTRODUCTION
HDNet-4Plus is a dedicated multi-platform KVM
switch capable of managing up to four different computers through a single HDMI monitor, USB keyboard
& mouse, and USB 2.0 devices. This is the first KVM
switch on the market that features support for 4K
Ultra HD (3840x2160 @30Hz) works stations. The
device also features SmartPreview technology, which
enables simultaneous picture-in-picture monitoring
of the other sources connected to the switch.
In addition, the HDNet-4Plus features USB keyboard
and mouse emulation for faster and reliable switching through the use of hotkey sequence commands.
It is also RS-232 compliant, capable of being controlled remotely via third-party software.
FEATURES
• Switches four Ultra HD sources to one Ultra HD
display
• Supports resolutions up to 4K Ultra HD
(3820x2160 @30Hz), including 1080p (@60Hz)
full HD
• Uses HDMI 1.4 ports
• Supports all USB 2.0 Devices (Flash drives,
Printers, Cameras, Scanners, etc.)
• Supports USB keyboard and mouse emulation
• Offers SmartPreview picture-in-picture technology
• Front panel tactile switch with LED display for lo-
cal control
• S/PDIF digital audio output
• RS-232 control for additional control
• Special Hotkey keyboard sequence to switch inde-
pendent simultaneous device selection: Flexibility
is key to the HDNET-4Plus
CONNECTING THE HDNET-4Plus
1. Ensure that power is disconnected from the
HDNET-4Plus.
2. Connect the HDMI cables and USB cables (male-A
to male-B) from the computers to the respective
ports on the HDNET-4Plus.
3. Optionally connect RS-232 for control functions.
4. Connect the USB keyboard and mouse on the two
USB ports on the right (close to the RS-232 port).
Note:
Note: The two USB ports on the right are dedicated
Note: Note:
for keyboard and mouse emulation only. The two
on the left are for other USB peripherals (flash
drives, printers, etc.)
5. Optionally connect speakers into the S/PDIF port
located to the right of the power connector.
6. Connect the display monitor to the HDMI OUT
connector on the HDNET-4Plus.
7.
Power on the HDNET-4Plus.
APPLICATION DIAGRAM
EDID LEARNING
The HDN-4Plus features plug-and-play EDID, making the
switch easy to implement in virtually any scenario. As soon
as a user plugs in a monitor, the switch automatically learns
and copies the EDID to all of the ports. The plug-and-play
EDID helps make switching hassle free and simple.
CONTROLLING THE HDNET-4Plus
Front Panel Control
To switch ports using the front panel, press the UP button to navigate up and DOWN button for down.
RS-232 Control
Use a male-to-female serial cable to connect a computer to the RS-232 port of the HDNET-4Plus. Use terminal client
software such as the HyperTerminal
mode of 9600 bps, 8, N, 1. This port can also be used for software upgrade. Please refer to online manual for more
details.
Hotkey Commands
The Hotkey command is a keyboard sequence used to trigger an action on the HDNET-4Plus through the use of the
keyboard connected on the USB port of the HDNET-4Plus. To activate the hotkey sequence, press the CTRL key
twice and then enter the desired hotkey commands.
HyperTerminal to connect to the HDNET-4Plus. Make sure to use the standard communication
HyperTerminalHyperTerminal
HDNET-4Plus REAR
USB INPUTS
RS-232
HDMI INPUTS HDMI OUTPUT
KEYBOARD
& MOUSE
COMMANDS HOTKEYS RS-232 CONTROL
Switch all devices (KVM, USB 2.0, and Audio) [CTRL] [CTRL] mmmm [port #] [ENTER] //mmmm[port #]<CR>
Switch KVM only
SmartPreview [CTRL] [CTRL] pppp [ENTER] //pppp
Query N/A //qqqq
only [CTRL] [CTRL] cccc [port #] [ENTER] //cccc[port #]<CR>
onlyonly
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