Installation Guide
AT-UHD-CAT-2
4K/UHD
Two-Output HDMI to HDBaseT™ Distribution Amplier
AT-UHD-CAT-2
The Atlona AT-UHD-CAT-2 is a 4K/UHD HDMI to HDBaseT distribution amplier featuring pass-
through HDMI input connections, two HDBaseT outputs, and display control capability. Each
output transmits AV and control signals up to 230 ft. (70 m) @ 1080p and 130 ft. (40 m) @ 4K/
UHD. Features include 4K/UHD @ 60 Hz with 4:2:0 color subsampling, HDCP 2.2 compliance,
EDID management, and PoE for powering remote receivers. A wide variety of consumer
displays may be controlled by the UHD-CAT-2 using CEC. Designed for commercial distribution
applications, the UHD-CAT-2 is control system-friendly and integrates with any TCP/IP, RS-232,
or IR control system and features a 1U, half-rack width enclosure with external, international
power supply. The UHD-CAT-2 is ideal for use with the AT-UHD-EX-70C-RX HDBaseT receiver,
AT-HDVS-200-RX HDBaseT receiver and HD scaler, or AT-HDVS-SC-RX HDBaseT receiver and
4K/UHD scaler.
Package Contents
1 x AT-UHD-CAT-2
3 x Captive screw connector, 5-pin
1 x Rack ear (short)
1 x Rack ear (long)
2 x Mounting plates
4 x Mounting screws
1 x 48 V DC power supply
1 x Installation Guide
IMPORTANT: Visit http://www.atlona.com/product/AT-UHD-CAT-2 for the latest rmware
updates and User Manual.
1
Installation Guide
21OUTIN
HDMI HDBaseT LOCK
EDIDPOWER
AT-UHD-CAT-2
INT LEARN
AT-UHD-CAT-2
Panel Descriptions
Front
Rear
1 HDMI Indicators
Displays the status of the HDMI IN and
HDMI OUT ports. When connected
to a source or display (sink) device,
respectively, the LED indicator will be
blue.
2 HDBaseT Indicators
Displays the status of the HDBaseT OUT
ports. When connected to an HDBaseT
receiver, the LED indicator will be blue.
3 Lock
This LED will be blue when the unit is
locked.
4 INT
This LED indicator will be blue when the
unit is using an internal EDID.
5 LEARN
This LED indicator will ash when a
downstream EDID is being read into
memory. Refer to the User Manual for
more information.
6 LAN
Connect an Ethernet cable from this port
to the network.
7 HDMI
Connect an HDMI cable from the source
to the IN port. Connect an HDMI cable
from the display (sink) device to the OUT
port.
1 2
HDMI HDBaseT LOCK
21OUTIN
AT-UHD-CAT-2
3 4
6 8 9 11
MASTER
RS-232
IR FW
LAN
TX TXRX RX
IN
OUT
HDMI HDBaseT OUT DC 48V
RS-232 IR
TX TXRX RX
7
21
RS-232 IR
TX TXRX RX
21
10 12
8 RS-232 / IR (MASTER)
Connect a control system or other DTE
device to this port to control the AT-UHDCAT-2.
9 RS-232/IR 1 / 2
Connect a control system or other DTE
device to these ports for pass-through
zone control. Each of these ports uses
the associated HDBaseT OUT port. This
allows RS-232 command data to be sent
to a display (sink) device connected to a
PoE-comptible receiver.
10 HDBaseT OUT
Connect Ethernet cables from these ports
to PoE-compatible receivers.
11 FW
Connect a mini USB-to-USB cable from
this port, to a computer, to update the
rmware of the AT-UHD-CAT-2.
12 DC 48V
Connect the included power supply to this
power receptacle.
5
INT LEARN
EDIDPOWER
2
Installation Guide
RS-232
The AT-UHD-CAT-2 provides three RS-232 ports. The RS-232/IR MASTER port is used to
control the AT-UHD-CAT-2 using a control system or other DTE equipment. RS-232/IR 1 and
RS-232/IR 2 ports are used in conjunction with the HDBaseT OUT 1 and HDBaseT OUT 2
ports. RS-232 data is passed through over the the respective HDBaseT OUT port (zone) to a
sink device connected to a PoE-compatible the receiver. This step is optional.
1. Use wire strippers to remove a portion of the cable jacket.
2. Remove at least 3/16” (5 mm) from the insulation of the RX, TX, and GND wires.
3. Insert the TX, RX, and GND wires into correct terminal using one of the included 5-pin
captive screw connectors.
4. Tighten the captive screws to secure the wires in place. Do not over-tighten or use hightorque devices to prevent damage to the connector block.
NOTE: Typical DB9 connectors use pin 2 for TX, pin 3 for RX, and pin 5 for
ground. On some devices functions of pins 2 and 3 are reversed.
TX
RX
GND
AT-UHD-CAT-2
S
GND
3
Installation Guide
AT-UHD-CAT-2
Installation
1. Connect an HDMI cable from a UHD/HD source to the HDMI IN port.
2. Connect an HDMI cable from the HDMI OUT port to a display (sink) device.
3. Connect up to two Ethernet cables from the HDBaseT OUT ports to compatible PoEcapable receivers.
4. Connect an Ethernet cable from the LAN port to the Local Area Network (LAN). This step
will be required in order to access the built-in web server.
5. Connect the included power supply to the DC 48V connector and connect the power cord
to an available electrical outlet.
Optional
6. Connect an RS-232 or IR cable from the control system or other DTE device to the RS-232/
IR ports:
• MASTER RS-232/IR
Connecting to this port will provide direct control of the AT-UHD-CAT-2. Control can
be performed using either RS-232 or electrical IR.
• RS-232/IR 1 or RS-232/IR 2
Each of these ports is associated to the respective HDBaseT OUT port. This allows
RS-232 pass-through zone control of a display (sink) device that is connected to a
PoE-compatible receiver. Control can be performed using RS-232 or electrical IR.
IP Conguration
By default, the AT-UHD-CAT-2 is set to DHCP mode, allowing a DHCP server (if present) to assign the unit an IP address. If a DHCP server is not found within 15 seconds, then the unit will be
placed in Auto IP mode and use a self-assigned IP address within the range of 169.254.xxx.xxx.
If DHCP or Auto IP mode are not desired, the unit can be placed into static IP mode by using the
POWER button on the front panel.
Switching the IP mode
Press and hold the POWER button for approximately 15 seconds. Once the LOCK LED indicator
begins to ash, release the POWER button. The number of ashes will indicate the currently
selected IP mode:
LED ashes Description
Two DHCP mode
Four Static IP mode IP address: 192.168.1.254
Netmask: 255.255.255.0
Gateway: 192.168.1.1
4
Connection Diagram
Installation Guide
AT-UHD-CAT-2
HDMI
HDMI
Laptop
AT-HDVS-SC-RX
AT-UHD-CAT-2
<
INPUT
1
ENTER
2
PWR
MENU
LINK
AT-HDVS-SC-RX
Display
LAN
Ethernet
INTLEARN
EDIDPOWER
21OUTIN
HDMI HDBaseT LOCK
AT-UHD-CAT-2
4K SCALER
LAN
INPUT
>
HDMI
HDBaseT
HDBaseT
21RL
RS-232
RX
AUDIO
TX
TX
RX
AT-HDVS-200-RX
PW
AT-HDVS-200-RX
LINK
AUTO
MENU
HDMI
Display
Display
5
Installation Guide
AT-UHD-CAT-2
Accessing the web GUI
The AT-UHD-CAT-2 includes a built-in web GUI, which allows easy management and control of
all features. Follow the instructions below to access the web GUI.
1. Make sure that an Ethernet cable is connected between the LAN port on the AT-UHD-CAT-2
and the network.
2. Launch a web browser and enter the IP address of the unit. If the default static IP address
is being used, enter 192.168.1.254.
3. The AT-UHD-CAT-2 Login page will be displayed.
4. Enter the following information on the Login page.
Login: root
Password: Atlona
5. Click the Login button.
6. Refer to User Manual for detailed operation of the web GUI.
AMS 2.0
For easy conguration of Atlona devices, AMS 2.0 is available from https://atlona.com/AMS for
free. Two options can be used for installation: The free Linux-based software download or the
easy-to-install server hardware (AT-AMS-HW).
Once AMS has been set up:
1. Open a browser on the same network as AMS 2.0 and go to the IP of AMS 2.0. View the
AMS 2.0 installation instructions on how to nd the IP of the software, if necessary.
2. Enter the login information on the AMS 2.0 web page, then click the Login button.
3. View the AT-UHD-CAT-2 manual for routing and conguration.
6
Installation Guide
Mounting Instructions
The AT-UHD-CAT-2 can be mounted in dierent ways, based on the number of units that are
being installed. The AT-UHD-CAT-2 can be mounted in a rack or on/under any at surface.
Single-unit rack installation
1. Attach the included small rack ear to one side of the AT-UHD-CAT-2, using the included
screws.
2. Attach the included longer rack ear to the opposite side of the AT-UHD-CAT-2 using the
included screws.
INT LEARN
AT-UHD-CAT-2
HDBaseT LOCK
HDMI
AT-UHD-CAT-2
EDIDPOWER
21OUTIN
7
Installation Guide
2
OUTIN
HDMI
AT-UHD-CAT-2
21OUTIN
HDMI HDBaseT LOCK
AT-UHD-CAT-2
Dual-unit rack installation
1. Turn both units upside-down on a at surface, next to each other, as shown.
2. Position the included mounting plates over the holes on the bottom of the enclosure.
When attaching mounting plates, the countersink bevels on the mounting plate should face
upward.
Countersink bevel
21
HDBaseT LOCK
EDIDPOWER
AT-UHD-CAT-2
INT LEARN
HDMI
1OUTIN
3. Turn the attached units over and install the rack ears to one side of each enclosure using the
included screws.
INT LEARN
EDIDPOWER
HDBaseT LOCK
21OUTIN
HDMI
INT LEARN
AT-UHD-CAT-2
EDIDPOWER
HDBaseT LOCK
21OUTIN
HDMI
AT-RON-444
AT-UHD-CAT-2
8
Installation Guide
AT-UHD-SW-510W
AT-UHD-CAT-2
USB-C
DP
HDMI 3
HDMI 4
BYOD
AT-UHD-CAT-2
Flat surface
1. Turn the unit upside down on a at surface.
2. Position the included mounting plates over the pre-drilled holes on the bottom of the
enclosure. When attaching mounting plates, the countersink bevels on the mounting plates
should face upward.
Countersink bevel
3. Mount the unit using the circular holes, on each mounting plate. If using a drywall surface,
a #6 drywall screw is recommended. Mounting screws are not included.
INT LEARN
HDBaseT LOCK
21OUTIN
HDMI
EDIDPOWER
NOTE: The unit can also be mounted under a at surface, such as a table, by
turning the unit upside down.
9
Troubleshooting
Problem Solution
Installation Guide
AT-UHD-CAT-2
What is the default static
IP address of the AT-
UHD-CAT-2?
How do I determine the IP
address of the unit?
What does the EDID
button do?
What is the current
version of rmware on the
AT-UHD-CAT-2?
What is the rmware
upgrade procedure?
The front-panel buttons
are not working.
• 192.168.1.254. However, by default the AT-UHD-CAT-2
comes with DHCP enabled. To use the static IP address,
see the instructions on page 6.
• Connect an RS-232 cable from a computer to the RS-232
port and execute the IPCFG command.
• This button is used to switch between internal and
external EDID modes. Refer to the User Manual for more
information.
• To check the rmware version in the web GUI, login and
go to the Info page.
• To check the rmware version using RS-232 or Telnet,
execute the Version command.
• Refer to the User Manual for instructions on upgrading
the rmware.
• Check to make sure that the AT-UHD-CAT-2 is not locked.
If the LOCK LED indicator is blue, then the unit is locked.
• To unlock the unit using the web GUI, login and click the
Lock toggle button to the UNLOCK position.
• To unlock the unit using RS-232 or Telnet, execute the
Unlock command.
10
Notes
Installation Guide
AT-UHD-CAT-2
11
Installation Guide
AT-UHD-CAT-2
Version 1
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