The Atlona JunoX™ 451 (AT-JUNO-451) is a 4x1 HDMI switcher for high dynamic range (HDR)
formats. It 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. The JunoX 451 is ideal for residential
applications with the latest as well as emerging 4K/UHD and HDR sources and displays. It is
compatible with all video resolutions, audio formats, and color space formats supported in the
HDMI 2.0a specification, plus the ability to pass metadata for HDR content. The JunoX 451 includes
EDID management features and automatic input switching. It also supports the HDMI Audio Return
Channel for receiving digital audio from a television, and includes a TOSLINK digital audio output
for sending this audio to an AV receiver or soundbar. This JunoX Series HDMI switcher can be
controlled via Ethernet, RS-232, and IR. A handheld IR remote control is included.
Package Content
AT-UHD-HDVS-300-TX
• 1 x Unit
• 1 x Female captive screw connector
5 pin: RS-232 and IR IN
• 2 x Mounting plates
• 4 x Rubber feet
• 4 x Screws
• 1 x IR remote control
• 1 x Installation guide
Features
• 4 input, 1 output HDMI switcher
• Passes resolutions up to 4K@60Hz 4:4:4, including HDR
• ARC capable from compatible displays
• Auto switching using both Hot Plug Detect and video detecting technology
• Flexible control options using IR, front panel, RS-232, TCP/IP, webGUI, or AMS
• Easy firmware updating using USB, webGUI, or AMS
• Multiple EDID options using internal, pass through, or learned EDIDs
• HDCP 2.2 compliant
Mounting
The JunoX comes with mounting brackets that can be used to affix the unit to a table, desk, etc.
Larger oval
hole will be
attached to
the wall/table.
Mounting bracket x 2
To affix the mounting brackets to the unit, use the four included screws. The bracket can be
affixed with the oval holes pointing to the bottom (for against the wall - picture A) or the oval holes
facing the top (for under tables - picture B).
A
B
Circular holes
will always be
attached to the
unit.
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Panel Descriptions
INPUTPOWERINPUTFW
1234
JUNOX
TM
342
AT-JUNO-451
10
JUNOX
1
INPUTPOWERINPUTFW
1234
TM
RX TXS
HDMI INHDMI OUTOPTICALRS-232IR INLANDC 5V
3214
57689
1. INPUT LEDs - LED will illuminate to display the currently selected input
2. POWER button - Turns switcher on or places the unit in standby mode
3. INPUT button - Use to switch between inputs
4. FW port: Firmware update port, connect a mini USB to USB A cable to a computer
Firmware is downloadable through http://www.atlona.com/product/AT-JUNO-451/
5. HDMI IN - Connect HDMI sources to these ports
6. HDMI OUT - Connect HDMI display to this port
7. OPTICAL port - Connect audio cable here for output to an AVR
8. RS-232 / IR IN - Connect to 3rd party control system for control
9. LAN port - Connect network switch or router here for Ethernet, TCP/IP, or webGUI control
10. DC 5V port - Connect included 5V power supply
Audio Return Channel (ARC)
ARC enables a source connected to a display to route audio back to the
switcher and send the de-embedded audio out the S/PDIF output.
Steps
1. Check to be sure the display supports ARC
2. Enable ARC on the HDMI output of the switcher through RS-232
(command ARC on), TCP/IP, or webGUI
3. Connect the HDMI output port of the switcher to the ARC labeled
input port on the display
Note: The switcher must be connected to the display’s HDMI ARC inputNote: Works well with audio from ARC enabled smart televisions
4. Connect the source to a non ARC HDMI input port on the display
5. Connect the S/PDIF port to an AVR or Zone Amp
HDMI
Game Console
HDMI
Audio loop-out
Bidirectional HDMI ARC signal
S/PDIF audio loop-out
RX TX S
3214
HDMI INHDMI OUTOPTICAL RS-232 IR INLANDC 5V
AT-JUNO-451
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Captive Screw
IR IN
RS-232
The captive screw connectors allow you to cut cables to a suitable length, reducing cable clutter
while providing a more reliable connection.
Connecting
When connecting the cables to the female captive screw connector it is important that the wires be
terminated correctly. The female captive screw connector has a contact plate at the top and must
have the wires touching it for signal to pass. When wired correctly (see picture A) the signal will pass,
incorrectly (see picture B) no signal will pass.
A
1
RS-232
RX
TX
The captive screw connectors have
B
a contact bar that is adjusted to
compress the wire against the top
contact plate. Use the screws at the
top of the connector to compress
the wire against the contact plate.
A female captive screw connector
is included: RS-232/IR (see picture 1
& 2).
Pin out color will differ per RS-232
cable.
RS-232 pin out will be
determined by the RS-232
cable and will connect as
Rx(receiver), Tx(transmitter),
and (ground). (See picture 2)
The IR IN is connected by a ground and
a signal cable. The recommended use of
this port is with a 3rd part control system.
S
Atlona recommends using a AT-LC-CS-IR2M (sold separately) for easy connection.
Clockwise
Turn the screws clockwise to
raise the contact bar to the
upper contact plate and hold
the wires in place.
2
IR
4 3 2
5
9
8
7
Counter
Clockwise
Turn the screws counter
clockwise to lower the
contact bar to release the
wires.
Note: On/off video, audio, and setup buttons are not
functional for the JUNO-451 switcher
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SW-R1
On
Video 2
Video
All On
Off
Audio
Vol +
Vol
Mute
-
Power
On
1
2
Video 1
On
Input
1
324
5
Off
Off
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Ethernet
For convenience, the JunoX comes with DHCP on. This enables the switcher to be
connected to a network without knowing available IP addresses. If your network does not allow
dynamic IP addresses or if you are using the switcher with a TCP/IP control system, this feature may
be turned off and the IP address set using front panel.
Note: Press and hold the input button on the front panel to switch between static and DHCP IP address.
Two button flashes means the unit is in static mode and four button flashes means the unit is DHCP.
Static IP configuration will be: 192.168.1.254 - 255.255.255.0
AMS & webGUI
Atlona provides two simple solutions for setup and control: a built in webGUI and the free software
AMS (AMS functionality coming soon).
To download AMS, go to http://atlona.com/product/at-sw-ams/
To get to the log in screen of AMS: type localhost:8080 into the web browser on the computer AMS is
running on. It will go straight to the log in for AMS.
GUI IP Address: may be found using an IP scanner software (e.g. Advanced IP Scanner)
*Atlona does not assume responsibility for damage caused by other programs installed into a computer, verify programs before installing*
A login screen will appear (this is the same log in for admin and general users). For the first login to AMS,
the username is “admin” and password is “admin123”. The login for the webGUI will be username
“root” and password “Atlona”.
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Once login is complete, the webGUI will display the JUNO-451 status information
Once logged in, select each page from the bar across the top
Video
Input Selection
Displays current input and allows the input to be selected manually
Auto Switch
Auto Switch: Toggles auto switching on/off
Set the baud rate, databit, parity, and stop bit of the system
The EDID tab enables the EDID settings to be changed or output EDIDs to be saved to memory.
Note: To ensure compatibility, it is best to set the EDID to match the native resolution of the connected display and the
audio format of the connected sound system
0 STD1 1080p 2CH2 1080p MCH 3 1080p DD
4 1080p 3D 2CH 5 1080p 3D MCH6 1080p 3D DD7 720p 2CH
Saves any connected display’s EDID to one of the four EDID memories of the JUNO-451
- Select the memory number to save the current output’s EDID to and press the save button
at the bottom of the page.
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The Users tab/page will allow users and passwords to be added/changed.
Network: IP address, netmask, gateway, and telnet port can be set to any settings compatible
with your network. The Netmask and Gateway must match your existing network
settings
IP Mode Static: Set a fixed IP address
Note: For a stable connection when using a control system, it is best to set up a static IP. As you select
an IP address, make certain no other devices on your network are using that IP address
DHCP: Dynamic Host Configuration Protocol will automatically select an IP address
on the network that is not already in use
Telnet Login Mode - Turn on/off - requires a password to adjust settings
Telnet Timeout - Set the auto log-off time between 1 and 3600 seconds
Broadcast - Turn on and off the feedback through all control ports
System:
Power - Turn the switcher on and off
Lock - Locks/unlocks the front panel buttons
Reset to Default - Reset the device to factory settings
Firmware Update - Use this feature to find and load the MCU firmware to the switcher
Note: Firmware can be found and downloaded from http://www.atlona.com/product/AT-JUNO-451/
page under the firmware tab
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RS-232 & TCP/IP
Terminal
To set up the RS-232 terminal the first thing needed is to find the RS-232 communications port
under the computer’s device manager. Once there, right click the port and select “Properties”.
Under the properties menu select the port settings tab and set the menu to the switcher default:
Bits per second: 115200, Data bits: 8, Parity: None, Stop bits: 1 and Flow control: None.
A
B
C
Connection
RS-232 is connected through a 9-pin female D connector. Three pins will have specific functions
associated with them, some are unassigned.
5
432
9876
1
No.PinFunction
1----Not used
2TxTransmit
3RxReceive
4----Not used
5GndGround
6----Not used
7----Not used
8----Not used
9----Not used
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Commands (RS-232 and TCP/IP)
The command codes are case sensitive, do not change capitalization, spacing, or lettering.
CommandFeedbackDescription
PWX
e.g. PWSTA
VersionVersion x.x.xxDisplays the software version
TypeAT-UHD-HDVS-300Displays the model information
MresetMresetReset device to manufacture default
LockLockLocks the front panel buttons
UnlockUnlockUnlocks the front panel buttons
x1AVx1
e.g. x4AVx1
Statusx1x2AVx1Displays what input is connected to the what output
AutoSW XAutoSW onTurns auto switching on/off (X= on, off, sta)
EDIDCopy XEDIDCopy XCopies the EDID of the currently connected display to memory X = 1-8
EDIDMSetX defaultEDIDMSetX defaultSet the EDID of the input to the default EDID
EDIDMSetX saveYEDIDMSetX saveYSet the EDID of an input to the previously saved EDID memory
EDIDMSetX intYEDIDMSetX intYSets the EDID of an input to one of the internal EDIDs
HDMIAud XHDMIAud XEnables/Disables audio on the HDMI output X= on, off, sta
SPDIF XSPDIF XTurns audio output through the S/PDIF port on/off X= on, off, sta
ARC XARC XEnables/disables ARC audio output X= on, off, sta
IR XIR XTurns the IR receiver window on/off X= on, off, sta
PWX
e.g. PWON
x1AVx1
e.g. x4AVx1
Turn the unit on/off X= ON, OFF, STA
e.g. Displays the unit’s power status
Switch inputs
e.g. Switch output 1 to input 4
e.g. EDIDMset3 save1 - sets input 3 to EDID memory 1
e.g. EDIDMSet2 int3 - Sets input 3 to internal EDID 3
Each command or feedback is terminated with a carriage return.
Note: If the command fails or is incorrect the feedback is “Command FAILED”
Y - Internal EDIDs -
0 Display’s EDID1 1080p 2CH2 1080p MCH 3 1080p DD
4 1080p 3D 2CH 5 1080p 3D MCH6 1080p 3D DD7 720p 2CH
Operating 0°C to 40°C 32°F to 104°F
Storage -20°C to 60°C -4°F to 140°F
Humidity 20 to 90% non-condensing
Power
Consumption 6.6 W
Idle 5.9 W
Supply Input: AC100-240V ~ 50/60Hz
Output: DC 5V
Dimension
H x W x D 26 x 219 x 152 (mm) 1.0 x 8.6 x 5.9 (inch)
Rack Size 1/2 Rack 1RU
Weight
Device 0.82 kg 1.8 lbs
Certification
Unit CE, FCC
Power Supply CE, FCC, Level VI, RoHS, cULus, RCM, CCC
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Safety Information
Safeguards
To reduce the risk of electric shock, do not
expose this product to rain or moisture
If the wall plug does not fit into your local
power socket, hire an electrician to replace
your obsolete socket.
Do not modify the wall plug. Doing so will
void the warranty and safety features.
This equipment should be installed near
the socket outlet and the device should
be easily accessible in the case it requires
disconnection.
Precautions
FCC regulations state that any unauthorized changes or modifications to this equipment, not
expressly approved by the manufacturer, could void the user’s authority to operate this equipment.
Operate this product using only the included external power supply. Use of other power supplies
could impair performance, damage the product, or cause fires.
In the event of an electrostatic discharge this device may automatically turn off. If this occurs,
unplug the device and plug it back in.
Protect and route power cords so they will not be stepped on or pinched by anything placed on or
against them. Be especially careful of plug-ins or cord exit points from this product.
Avoid excessive humidity, sudden temperature changes or temperature extremes.
Keep this product away from wet locations such as bathtubs, sinks, laundries, wet basements, fish
tanks, and swimming pools.
Use only accessories recommended by Atlona to avoid fire, shock, or other hazards.
Unplug the product before cleaning. Use a damp cloth for cleaning and not cleaning fluid or
aerosols. Such products could enter the unit and cause damage, fire, or electric shock. Some
substances may also mar the finish of the product.
Never open, remove unit panels, or make any adjustments not described in this manual.
Attempting to do so could expose you to dangerous electrical shock or other hazards. It may also
cause damage to your product. Opening the product will void the warranty.
Do not attempt to service the unit. Disconnect the product and contact your authorized Atlona
reseller or contact Atlona directly.
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Atlona, Inc. (“Atlona”) Limited Product Warranty Policy
Coverage
Atlona warrants its products will substantially perform to their published specifications and will be free from defects in
materials and workmanship under normal use, conditions and service.
Under its Limited Product Warranty, Atlona, at its sole discretion, will either:
A) repair or facilitate the repair of defective products within a reasonable period of time, restore products to their
proper operating condition and return defective products free of any charge for necessary parts, labor and shipping
B) replace and return, free of charge, any defective products with direct replacement or with similar products deemed
by Atlona to perform substantially the same function as the original products
C) refund the pro-rated value based on the remaining term of the warranty period, not to exceed MSRP, in cases
where products are beyond repair and/or no direct or substantially similar replacement products exist.
Repair, replacement or refund of Atlona’s products is the purchaser’s exclusive remedy and Atlona’s liability does not
extend to any other damages, incidental, consequential or otherwise.
This Limited Product Warranty extends to the original end-user purchaser of Atlona’s products and is non-transferrable to
any subsequent purchaser(s) or owner(s) of these products.
Coverage Periods
Atlona’s Limited Product Warranty Period begins on the date of purchase by the end-purchaser. The date contained on
the end-purchaser‘s sales or delivery receipt is the proof purchase date.
Limited Product Warranty Terms – New Products
• 10 years from proof of purchase date for hardware/electronics products purchased on or after June 1, 2013
• 3 years from proof of purchase date for hardware/electronics products purchased before June 1, 2013
• Lifetime Limited Product Warranty for all cable products
• 3 years from proof of purchase date for all Refurbished (B-Stock) hardware and electronic products purchased on or
after June 1, 2013
Remedy
Atlona recommends that end-purchasers contact their authorized Atlona dealer or reseller from whom they purchased
their products. Atlona can also be contacted directly. Visit www.atlona.com for Atlona’s contact information and hours
of operation. Atlona requires that a dated sales or delivery receipt from an authorized dealer, reseller or end-purchaser is
provided before Atlona extends its warranty services. Additionally, a return merchandise authorization (RMA) and/or case
number, is required to be obtained from Atlona in advance of returns.
Atlona requires that products returned are properly packed, preferably in the original carton, for shipping. Cartons not
bearing a return authorization or case number will be refused. Atlona, at its sole discretion, reserves the right to reject
any products received without advanced authorization. Authorizations can be requested by calling 1-877-536-3976 (US
toll free) or 1-408- 962-0515 (US/international) or via Atlona’s website at www.atlona.com.
Exclusions
This Limited Product Warranty excludes:
• Damage, deterioration or malfunction caused by any alteration, modification, improper use, neglect, improper
packing or shipping (such claims must be presented to the carrier), lightning, power surges, or other acts of nature.
• Damage, deterioration or malfunction resulting from the installation or removal of this product from any installation,
any unauthorized tampering with this product, any repairs attempted by anyone unauthorized by Atlona to make
such repairs, or any other cause which does not relate directly to a defect in materials and/or workmanship of this
product.
• Equipment enclosures, cables, power supplies, batteries, LCD displays, and any accessories used in conjunction with
the product(s).
• Products purchased from unauthorized distributors, dealers, resellers, auction websites and similar unauthorized
channels of distribution.
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Disclaimers
This Limited Product Warranty does not imply that the electronic components contained within Atlona’s products will
not become obsolete nor does it imply Atlona products or their electronic components will remain compatible with any
other current product, technology or any future products or technologies in which Atlona’s products may be used in
conjunction with. Atlona, at its sole discretion, reserves the right not to extend its warranty offering in instances arising
outside its normal course of business including, but not limited to, damage inflicted to its products from acts of god.
Limitation on Liability
The maximum liability of Atlona under this limited product warranty shall not exceed the original Atlona MSRP for
its products. To the maximum extent permitted by law, Atlona is not responsible for the direct, special, incidental or
consequential damages resulting from any breach of warranty or condition, or under any other legal theory. Some
countries, districts or states do not allow the exclusion or limitation of relief, special, incidental, consequential or indirect
damages, or the limitation of liability to specified amounts, so the above limitations or exclusions may not apply to you.
Exclusive Remedy
To the maximum extent permitted by law, this limited product warranty and the remedies set forth above are exclusive
and in lieu of all other warranties, remedies and conditions, whether oral or written, express or implied. To the maximum
extent permitted by law, Atlona specifically disclaims all implied warranties, including, without limitation, warranties
of merchantability and fitness for a particular purpose. If Atlona cannot lawfully disclaim or exclude implied warranties
under applicable law, then all implied warranties covering its products including warranties of merchantability and fitness
for a particular purpose, shall provide to its products under applicable law. If any product to which this limited warranty
applies is a “Consumer Product” under the Magnuson-Moss Warranty Act (15 U.S.C.A. §2301, ET SEQ.) or other
applicable law, the foregoing disclaimer of implied warranties shall not apply, and all implied warranties on its products,
including warranties of merchantability and fitness for the particular purpose, shall apply as provided under applicable
law.
Other Conditions
Atlona’s Limited Product Warranty offering gives legal rights, and other rights may apply and vary from country to
country or state to state. This limited warranty is void if (i) the label bearing the serial number of products have been
removed or defaced, (ii) products are not purchased from an authorized Atlona dealer or reseller. A comprehensive list of
Atlona’s authorized distributors, dealers and resellers can be found at www.atlona.com.
Atlona Product Registration
Thank you for purchasing this Atlona product. - We hope you enjoy it and will take an extra few moments to
register your new purchase.
Registration creates an ownership record if your product is lost or stolen and helps ensure you’ll receive
notification of performance issues and firmware updates.
At Atlona, we respect and protect your privacy, assuring you that your registration information is completely
secure. Atlona product registration is completely voluntary and failure to register will not diminish your limited
warranty rights.
To register go to: http://www.atlona.com/registration
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