
1
Installation Guide
AT-HDR-SW-52
4K/HDR
5x2 HDMI Matrix Switcher
AT-HDR-SW-52
The Atlona AT-HDR-SW-52 is a 5×2 HDMI matrix switcher for high dynamic range (HDR) formats.
Part of the comprehensive family of Atlona 4K HDR integration products, it features ve HDMI
inputs and matrixed or mirrored HDMI outputs. The HDR-SW-52 is HDCP 2.2 compliant and
supports 4K/UHD video @ 60 Hz with 4:4:4 chroma sampling, as well as HDMI data rates up to
18 Gbps. It is ideal for the latest as well as emerging 4K/UHD and HDR sources and displays,
and includes EDID management features, and automatic input switching. Additionally, 4K
downscaling to 1080p @ 60, 30, or 24 Hz is available for the HDMI outputs when connected to
an HD display. The HDR-SW-52 can de-embed audio from an HDMI input to S/PDIF or balanced
analog audio outputs. This HDMI switcher can be controlled via Ethernet, RS-232, and IR.
IMPORTANT: Visit https://www.atlona.com/product/at-hdr-sw-52 for the latest
rmware updates and User Manual.
1 x AT-HDR-SW-52
1 x Captive screw connector, 2-pin
1 x Captive screw connector, 3-pin
1 x Captive screw connector, 5-pin
1 x Long rack ear
1 x Short rack ear
2 x Mounting plates
4 x Mounting screws
4 x Rack screws
4 x Feet w/rubber grips
1 x 5 V / 4 A DC power supply
Package Contents

2
Installation Guide
AT-HDR-SW-52
Front Panel Descriptions
S/PDIF OUT
RX TX
RS-232
LAN
FW DC 5V
+
-
1 2 3
4
5 1
HDMI IN HDMI OUT
2
AUDIO
L R
HDMI 1
HDMI 2
HDMI 3
HDMI 4
HDMI 5
VOLUME
AT-HDR-SW-52
POWER INPUT
1 3 42 5
1 HDMI 1 - HDMI 5
These LED indicators display which input
is routed to the HDMI OUT ports. A solid
blue indicator represents the active input
being used
2 VOLUME
Displays the output audio level.
3 POWER
Press this button to toggle between “on”
and “standby” power states. When in
“standby”, A/V is muted. When “on”, A/V
muting will be disabled.
4 Cursor Buttons
Press and release these buttons to
increase or decrease the audio output
volume on the L/R port.
5 INPUT
Press and release this button to cycle
through each of the HDMI inputs.

3
Installation Guide
AT-HDR-SW-52
Rear Panel Descriptions
S/PDIF OUT
RX TX
RS-232
LAN
FW DC 5V
+
-
1 2 3
4
5 1
HDMI IN HDMI OUT
2
AUDIO
L R
HDMI 1
HDMI 2
HDMI 3
HDMI 4
HDMI 5
VOLUME
AT-HDR-SW-52
POWER INPUT
1 3 5 6 8
2 4 7
1 HDMI IN
Connect an HDMI cable from each of
these ports to an HDMI source.
2 L/R
Connect an analog audio output device to
this port using the included captive screw
block. Refer to Audio (page 5) for
information on wiring.
3 HDMI OUT
Connect an HDMI cable from each of
these ports to an HDMI display.
4 S/PDIF OUT
Connect an RCA-type cable from this port
to the S/PDIF audio input port on an A/V
receiver or other audio output device.
5 FW
Connect a USB-to-mini USB cable to
this port from a computer for rmware
updates.
6 LAN
Connect an Ethernet cable from this port
to the Local Area Network (LAN). The
AT-HDR-SW-52 includes a built-in web
server, which can be used to manage and
congure the product.
7 RS-232
Connect the included captive screw block
to an RS-232 controller to control the
AT-HDR-SW-52. Refer to RS-232 (page
4) for more information on wiring.
8 DC 5V
Connect the included 5 V DC power
supply from this power receptacle to an
available AC electrical outlet. Refer to
Power (page 4) for more information
on wiring.

4
Installation Guide
AT-HDR-SW-52
Power
RS-232
S/PDIF OUT
RX TX
RS-232
LAN
FW DC 5V
+
-
1 2 3
4
5
1
HDMI IN
HDMI OUT
2
AUDIO
L R
HDMI 1
HDMI 2
HDMI 3
HDMI 4
HDMI 5
VOLUME
AT-HDR-SW-52
POWER INPUT
S/PDIF OUT
RX TX
RS-232
LAN
FW DC 5V
+
-
1 2 3
4
5
1
HDMI IN
HDMI OUT
2
AUDIO
L R
HDMI 1
HDMI 2
HDMI 3
HDMI 4
HDMI 5
VOLUME
AT-HDR-SW-52
POWER INPUT
POS
White
Black
NEG
Connect the included 2-pin captive screw connector to the DC 5V power receptacle on the rear
of the unit. The captive screw comes pre-wired as shown.
The AT-HDR-SW-52 provides an RS-232 port which can be used to directly control the AT-HDR-
SW-52 using a control system.
1. Use wire strippers to remove a portion of the cable jacket.
2. Remove at least 3/16” (5 mm) of insulation from each of the wires.
3. Insert the wires into correct terminal using the included 5-pin captive screw connector.
4. Attach the 3-pin connector block to the RS-232 port on the AT-HDR-SW-52.
Control System
AT-HDR-SW-52
GND
GND
RxD
TxD
TxD
RxD
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.

5
Installation Guide
AT-HDR-SW-52
Audio
The included 5-pin captive screw block can be wired to support balanced audio using XLR
connectors, or unbalanced audio using RCA connectors.
*The GND signal, from the 5-pin captive screw connector on the
AT-HDR-SW-52, should be tied to pin 1 on both XLR connectors.
*The GND signal, from the captive screw connector on the AT-
HDR-SW-52, should be tied to L- and R- on the captive screw
connector.
GND
+
+
GND
1
2
2
3
3
GND
Balanced Audio (XLR)
Unbalanced Audio (RCA)
Channel Signal (AT-HDR-SW-52) Pin (RCA)
R to GND* --
R + +
-- GND GND
L + +
L to GND* --
Channel Signal (AT-HDR-SW-52) Pin (XLR)
R - 3
R + 2
-- GND* 1
L + 2
L - 3

6
Installation Guide
AT-HDR-SW-52
Installation
1. Connect a source device to each of the HDMI IN (1 - 5) ports.
2. Connect a display device to each of the HDMI OUT (1 - 2) ports.
3. 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.
S/PDIF OUT
RX TX
RS-232
LAN
FW DC 5V
+
-
1 2 3
4
5 1
HDMI IN HDMI OUT
2
AUDIO
L R
HDMI 1
HDMI 2
HDMI 3
HDMI 4
HDMI 5
VOLUME
AT-HDR-SW-52
POWER INPUT
1 2
6
3 7
4 5
IMPORTANT: Stranded or patch cable is not recommended due to
performance issues. Shielded cables are strongly recommended to
minimize signal noise and interference.
4. Connect the included 5-pin captive screw connector to the 5-pin L/R port. Refer to Audio
(page 5) for more information.
5. Connect an RCA-type cable from the S/PDIF OUT port to an audio output device.
6. Connect an RS-232 cable from the control system to the RS-232 port. Refer to RS-232
(page 4) for more information.
7. Connect the included power supply to the DC 5V connector and connect the power cord to
an available electrical outlet.

7
Installation Guide
AT-HDR-SW-52
The AT-HDR-SW-52 is shipped with DHCP enabled. Once connected to a network, the DHCP
server (if available), will automatically assign an IP address to the unit. If the AT-HDR-SW-52
is unable to detect a DHCP server within 15 seconds, then the unit will use a self-assigned IP
address within the range of 169.254.xxx.xxx/16. If this occurs, refer to the AT-HDR-SW-52
User Manual for more information.
Use an IP scanner, along with the MAC address on the bottom of the unit, to identify the unit on
the network. If a static IP address is desired, the unit can be switched to static IP mode.
IP Conguration
Switching the IP mode using the Front Panel
1. Make sure the AT-HDR-SW-52 is powered.
2. Connect an Ethernet cable between the LAN port of the AT-HDR-SW-52 and the Local Area
Network (LAN).
3. Press and hold the POWER button for approximately 15 seconds. Release the POWER
button once all the front-panel LED indicators begin to ash. The number of ashes will
indicate the currently selected IP mode. Refer to the table, below.
POWER button ashes Description Settings
Two Static IP mode IP address: 192.168.1.254
Netmask: 255.255.0.0
Gateway: 192.168.1.1
Four DHCP mode DHCP server assigned
S/PDIF OUT
RX TX
RS-232
LAN
FW DC 5V
+
-
1 2 3
4
5 1
HDMI IN HDMI OUT
2
AUDIO
L R
HDMI 1
HDMI 2
HDMI 3
HDMI 4
HDMI 5
VOLUME
AT-HDR-SW-52
POWER INPUT
POWER button

8
Installation Guide
AT-HDR-SW-52
Accessing the built-in Web Server
The AT-HDR-SW-52 includes a built-in web server, which allows easy management and control
of all features. Follow the instructions below to access the web server.
1. Make sure that an Ethernet cable is connected between the LAN port on the AT-HDR-
SW-52 and the network.
2. Launch a web browser and enter the IP address of the unit.
3. The AT-HDR-SW-52 Register page will be displayed.
4. Create a username and password.
5. Click the Register button.
6. The Login page will be displayed.
7. Enter the username and password that was created during the registration process.
8. Click the Login button.
9. Refer to User Manual for more information on using the built-in web server.

9
Installation Guide
AT-HDR-SW-52
Notes

10
Installation Guide
AT-HDR-SW-52
Notes

11
Installation Guide
AT-HDR-SW-52
Notes

12
Installation Guide
AT-HDR-SW-52
25294-R1
®
The terms HDMI, HDMI High-Denition Multimedia Interface, and the HDMI Logo are trademarks or
registered trademarks of HDMI licensing Administrator, Inc.
© 2023 Atlona Inc. All rights reserved. “Atlona” and the Atlona logo are registered trademarks of Atlona Inc. All other brand names and trademarks or registered
trademarks are the property of their respective owners. Pricing, specications and availability subject to change without notice. Actual products, product images, and
online product images may vary from images shown here.
English Declaration of Conformity
The English version can be found under the resources tab at:
https://atlona.com/product/at-hdr-sw-52/.
Warranty
Chinese Declaration of Conformity 中国RoHS合格声明
To view the product warranty, use the following link or QR code:
https://atlona.com/warranty/.
由SKU列出於:
https://atlona.com/about-us/china-rohs/.
US International
atlona.com • 408.962.0515 • 41.43.508.4321
