2
Installation Guide
AT-JUNO-451 / AT-JUNO-451-HDBT
HDMI OUT
LAN
OPTICAL
RS-232
RX TX
S
IR IN
DC 5V
AT-JUNO-451-HDBT
INPUT
1
2
3
4
POWER
INPUT
FW
1
2
3
4
INPUT
AT-JUNO-451-HDBT
J
UNO
X
TM
HDMI OUT
LAN
OPTICAL
RS-232
RX TX
S
IR IN
DC 5V
AT-JUNO-451-HDBT
INPUT
1
2
3
4
POWER
INPUT
FW
1
2
3
4
INPUT
AT-JUNO-451-HDBT
J
UNO
X
TM
1
IR Window
Receives IR signals from the included IR
remote. Refer to
RS-232 / IR Connector
(page 3)
for wiring information.
2
Input Indicators
These LED indicators glow solid blue to
indicate the active input.
3
POWER
Press this button to power-on or power-
off the unit.
4
INPUT
Press and release this button to cycle
through each of the inputs.
5
FW
Connect a mini USB cable to this port to
update the firmware.
6
HDBaseT Input
This port is only available on the
AT-
JUNO-451-HDBT
: Connect a transmitter,
such as the AT-UHD-PRO3-44M, to this
port using an Ethernet cable.
The
AT-JUNO-451
replaces this port with
an HDMI input.
7
HDMI Inputs
Connect an HD/UHD source to each of
these HDMI ports.
8
HDMI OUT
Connect an HDMI cable from this port to
a display or other sink device. This output
supports multichannel audio.
9
OPTICAL
Connect an optical audio cable from this
TOSLINK port to an audio output device.
This port is part of the Audio Return
Channel (ARC): audio from the display
is routed upstream, back to the switcher
over HDMI, to this port.
10 RS-232 / IR IN
Connect the included 4-pin captive
screw block to this port. Refer to
RS-232
/ IR Connector (page 3)
for wiring
information.
11 LAN
Connect an Ethernet cable from this port
to a Local Area Network (LAN).
12 DC 5V
Connect the included 5 V DC power
supply to this power receptacle.
Panel Descriptions (AT-JUNO-451-HDBT shown)
1
6
2
7
3
8
4
9
10
11
5
12
