BLACK BOX HD6224A 4K60 HDMI Dual-Head KVM Switch User Manual
- June 5, 2024
- BLACK BOX
Table of Contents
QUICK START GUIDE AND USER MANUAL
HD6224A
4K60 HDMI DUAL-HEAD KVM SWITCH
24/7 TECHNICAL SUPPORT AT 1.877.877.2269 OR VISIT BLACKBOX.COMC
QUICK START GUIDE
HARDWARE INSTALLATION
- Ensure that power is disconnected from the 4K60 HDMI Dual-Head KVM Switch.
- Connect the HDMI cables and USB cables (male-A to male-B) from the computers to the respective ports on the K3. Optionally connect audio cables from the computers to the respective ports on the KVM Switch.
- Optionally connect RS-232 for control functions.
- Connect the USB keyboard and mouse to the two USB ports with keyboard and mouse symbols.
- Optionally connect speakers to the KVM Switch.
- Optionally connect up to 2 USB peripheral devices such as printers or flash drives.
- Connect the display monitors to the OUTPUT connectors on the KVM Switch.
- Power on the KVM Switch.
FRONT-PANEL CONTROL
To switch ports using the front panel, press the Activity buttons to navigate
between connected computers. EDID learning is also done through the front-
panel buttons by pressing both buttons simultaneously.
COMMANDS
TABLE QS-1. COMMANDS
COMMANDS
| HOTKEYS|
RS-232 CONTROL
---|---|---
Switch all devices (KVM, USB 2.0, and Audio)| [CTRL] [CTRL] m [port #]
[ENTER]| //m [port #] [ENTER]
Switch KVM only| [CTRL] [CTRL] c [port #] [ENTER]| //c [port #] [ENTER]
Switch Audio only| [CTRL] [CTRL] a [port #] [ENTER]| //a [port #] [ENTER]
Switch USB 2.0 only| CTRL] [CTRL] u [port #] [ENTER]| //u [port #] [ENTER]
EDID Learning| [CTRL] [CTRL] e [ENTER]| //e [ENTER]
Same as front panel Activity button| [CTRL] [CTRL] [up-arrow]| n/a
Same as front panel Activity button| [CTRL] [CTRL] [down-arrow]| n/a
Reset| [CTRL] [CTRL] r| //r
Factory Default Reset| [CTRL] [CTRL] f| //f
CHAPTER 1: SPECIFICATIONS
TABLE 1-1. SPECIFICATIONS
Video|
---|---
Link Rate| 5.4 Gbps/lane
Input Interface| (8) HDMI 2.0 female
Output Interface| (2) HDMI 2.0 female
Resolution| 480i to 4K x 2K @ 60 Hz (YUV420)
Input Equalization| Automatic
Video Bandwidth| 300 MHz, 10.2 Gbps
HDCP Compliant| Yes
Input/Output Max. Cable Length| 20 ft. (6.2 m) (depending on cable quality)
Audio|
Input Interface| (4) 3.5-mm stereo audio jack
Output Interface| (1) 3.5-mm stereo audio jack
Frequency Response| 20 Hz to 20 kHz
Common Mode| Rejection @ 60 dB
Nominal Level| 0.0 to 1.0 V
Control|
Front Panel| (4) Computer LEDs. (2) Activity buttons and LEDs
RS-232| DB9 female. 115200 bps. N. 8 1. No flow control
Hotkeys| Via keyboard
Emulation| Keyboard, Video, and Mouse
USB|
Signal Type| USB 2.0.1.1, and 1.0 w/ internal hub
Input Interface| (4)11513 Type B (female)
Device Input Interface| (2) USB 1.1 Type A (female) for keyboard-mouse; (2)
USB 2.0 Type A Transparent
Other|
Operating Temperature| 23 to 95′ F (-5 to +35° C)
Storage Temperature| -4 to 4-185′ F (-20 to 4-85° C)
Humidity| 5 to 90%. noncondensing
Power| External 100-240 VAC/5 VOL 4 A
Dimensions| 2.875 H x 5.75 D x 12.75″ W (7.3 x 14.6 x 32.4 cm)
Weight| 4.1 lb. (1.9 kg)
Approvals| Ut., CE, ROHS Compliant
CHAPTER 2: OVERVIEW
2.1 INTRODUCTION
The 4K60 HDMI Dual-Head KVM Switch – 4-Port is a dedicated multi-platform KVM
switch capable of managing four dual-head 4K computers through a single KVM.
Built with ultra-HD-ready HDMI outputs, the KVM Switch offers full 4K
emulation at 60 Hz directly from the device. Until now, HDMI switches lost
emulated pictures when disconnected from monitors, leading to confusion and
disorganization upon reconnecting. With the 4K60 HDMI Dual-Head KVM Switch,
full EDID-assisted HDMI video emulation ensures visual workspaces and screen
resolutions are remembered.
The KVM Switch is HDCP compliant, supporting screen resolutions up to 4K
Ultra-HD (3840 x 2160 @ 60 Hz) with responsive EDID emulation. Additionally,
the KVM Switch is compatible with any USB peripheral.
The KVM Switch is also easy to control with both a simple front-panel
interface, as well as RS-232 or hotkeys.
- Source switching made easy: The KVM Switch offers simplified management between four dual-head HDMI-equipped computers’ USB 2.0 outputs. Keyboards, mice, and other connected USB devices can be switched between with ease. This dynamic KVM switch can be controlled via hotkeys or RS-232 commands, as well as directly through the console’s easy-to-read front panel.
- EDID passthrough and recognition: The KVM Switch features EDID passthrough technology and source recognition, which enable smooth and efficient switching in virtually any scenario. This plug-and-play EDID functionality makes setup hassle-free and simple.
- Full USB keyboard and mouse emulation: The USB keyboard and mouse emulation used by the KVM Switch provides quick source switching via keyboard hotkeys. The KVM Switch simulates the presence of a keyboard and mouse for every attached computer. This essential function simulates keyboard and mouse control for all connected computers, so switching between each is kept seamless and completely uninterrupted.
2.2 FEATURES
- Supports up to Ultra-HD 4K (3840 x 2160) @ 30/50/60 Hz
- Supports 3D
- Supports LPCM, Dolby-AC3, DTS7.1, and DSD/Dolby TrueHD/DTS-HD master audio
- Supports HDMI 1.3, 1.4, and 2.0
- HDMI and HDCP compliant
- Control up to four dual-head computers with a single KVM
- Full EDID HDMI video emulation
- Zero pixel loss with TMDS signal correction
- Supports USB keyboard-mouse emulation
- Supports all USB 2.0 devices
- Uses hotkey commands for quick channel selection
- Independent (asynchronous) switching of KVM and peripheral USB ports. Users can scan a document and save to another computer
- Complete KVM emulation for error-free booting
- Easy switching via front-panel, RS-232, or hotkeys
- Full HDMI support, backward compatibility
2.3 WHAT’S INCLUDED
Before you install this switch, verify that your package contains the
following items:
- (1) 4K60 HDMI Dual-Head KVM Switch – 4-Port
- (1) 5-VDC, 4-A power adapter
If anything is missing or damaged, contact Black Box Technical Support at 877-877-2269 or info@blackbox.com.
2.4 HARDWARE DESCRIPTION
2.4.1 FRONT PANEL
Figure 2-1 shows the front panel of the HD6224A. Table 2-1 describes its components.
NUMBER IN FIGURE 2-1
| COMPONENT|
DESCRIPTION
---|---|---
1| (4) Computer LEDs| Computer 1, 2, 3, 4
2| (1) Activity button and LED| Press the button to navigate between connected
computers.
LED lights when the button is active
3| (1) Activity button and LED| Press the button to navigate between connected
computers.
LED lights when the button is active
2.4.2 BACK PANEL
Figure 2-2 shows the back panel of the HD6224A. Table 2-2 describes its
components.
TABLE 2-2. HD6224A BACK-PANEL COMPONENTS
NUMBER IN FIGURE 2-2
| COMPONENT|
DESCRIPTION
---|---|---
1| (1) DB9 female connector| Used for RS-232 control
2| (1) barrel connector| Links to the 5-V power supply
3| (4) USB Type B connectors| Connects to computer input interfaces
4| (4) Audio IN connectors| Connectors to input audio
5| (4) USB Type-A connectors| Connects to device output interfaces
6| (1) Audio OUT connector| Connects to output audio
7| (2) HDMI 2.0 female connectors| Links to Output A and Output B
8| (8) HDMI 2.0 female connectors| Links to Inputs 1A, 2A, 3A, 4A, 1B, 2B, 3B,
and 4B
CHAPTER 3: HARDWARE INSTALLATION
- Ensure that power is disconnected from the KVM Switch.
- Connect the HDMI cables and USB cables (male-A to male-B) from the computers to the respective ports on the KVM Switch.
- Optionally connect audio cables from the computers to the respective ports on the KVM Switch.
- Optionally connect RS-232 for control functions.
- Connect the USB keyboard and mouse to the two USB ports with keyboard and mouse symbols.
- Optionally connect speakers to the KVM Switch.
- Optionally connect up to two USB peripheral devices such as printers or flash drives.
- Connect the display monitors to the OUTPUT connectors on the KVM Switch.
- Power on the KVM Switch.
CHAPTER 4: FRONT-PANEL CONTROL
To switch ports using the front panel, press the Activity buttons to navigate
between connected computers.
EDID learning is also done through the front panel buttons by pressing both
buttons simultaneously.
CHAPTER 5: HOTKEY COMMANDS
A hotkey command is a keyboard sequence used to trigger an action on the KVM Switch through the use of the keyboard connected to the USB port of the KVM Switch. To activate the hotkey sequence, press the CTRL key twice and then enter the desired hotkey commands. See Table 5-1.
TABLE 5-1. COMMANDS
COMMANDS
| HOTKEYS|
RS-232 CONTROL
---|---|---
Switch all devices (KVM, USB 2.0, and Audio)| [CTRL] [CTRL] [port #] [ENTER]|
//m [port #] [ENTER]
Switch KVM only| [CTRL] [CTRL] c [port #] [ENTER]| //c [port #] [ENTER]
Switch Audio only| [CTRL] [CTRL] a [port #] [ENTER]| //a [port #] [ENTER]
Switch USB 2.0 only| CTRL] [CTRL] u [port #] [ENTER]| //u [port #] [ENTER]
EDID Learning| [CTRL] [CTRL] e [ENTER]| //e [ENTER]
Same as front panel Activity button| [CTRL] [CTRL] [up-arrow]| n/a
Same as front panel Activity button| [CTRL] [CTRL] [down-arrow]| n/a
Reset| [CTRL] [CTRL] r| //r
Factory Default Reset| [CTRL] [CTRL] f| //f
CHAPTER 6: RS-232 CONTROL
Controlling the KVM Switch via RS-232 requires an RS-232 card installed on your computer or a USB to RS-232 adapter. Check the KVM Switch and your computer to determine if you need a male-to-male or a male-to-female cable and how long it needs to be. The KVM Switch requires a straight-through cable. You can use a null-modem adapter to convert a crossed cable to a straight-through cable. An example of a straight-through cable pinout is shown in Figure 6-1. The standard maximum length for an RS-232 cable is 50 feet (15.2 meters). Contact Black Box Technical Support at 877-877-2269 or info@blackbox.com if you require more information.
You will need to identify the COM port number used. On a Windows PC:
- Click on the start button.
- Click on Control Panel.
- Click on Device Manager.
- Click on the arrow next to Ports (COM & LPT).
You should see the COM port number in use.
Run the terminal client of your choices such as HyperTerminal or PuTTY. Select
the correct COM port on the computer. Use the following connection settings:
115200, N, 8, 1, no flow control.
Cycling power on your unit will display a bootup message in your terminal
software if the connection is correct.
NOTE: Your terminal software may not default to or display all of the
settings above. If you attempt to connect and the settings above are not set
correctly, after you set them correctly you may need to cycle power on your
unit for communication to be established.
See Table 5-1 for a list of RS‐232 commands.
APPENDIX A: REGULATORY INFORMATION
A.1 FCC CLASS A STATEMENT
This equipment generates, uses, and can radiate radio-frequency energy, and if
not installed and used properly, that is, in strict accordance with the
manufacturer’s instructions, may cause interference to radio communication. It
has been tested and found to comply with the limits for a Class A computing
device in accordance with the specifications in Subpart B of Part 15 of FCC
rules, which are designed to provide reasonable protection against such
interference when the equipment is operated in a commercial environment.
Operation of this equipment in a residential area is likely to cause
interference, in which case the user at his own expense will be required to
take whatever measures may be necessary to correct the interference.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This digital apparatus does not exceed the Class A limits for radio noise
emission from digital apparatus set out in the Radio Interference Regulation
of Industry Canada.
A.2 NOM STATEMENT
APPENDIX B: DISCLAIMER/TRADEMARKS
B.1 DISCLAIMER
Black Box Corporation shall not be liable for damages of any kind, including,
but not limited to, punitive, consequential, or cost of cover damages,
resulting from any errors in the product information or specifications set
forth in this document, and Black Box Corporation may revise this document at
any time without notice.
B.2 TRADEMARKS USED IN THIS MANUAL
Black Box and the Black Box logotype and mark are registered trademarks of
Black Box Corporation.
Any other trademarks mentioned in this manual are acknowledged to be the
property of the trademark owners.
NEED HELP?
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LIVE 24/7 TECHNICAL SUPPORT
1.877.877.2269
© COPYRIGHT 2021. BLACK BOX CORPORATION. ALL RIGHTS RESERVED.
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BLACK BOX HD6224A 4K60 HDMI Dual-Head KVM
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