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Installation
Audio Connector
Connect to an audio DSP, amplifier, or other audio distribution or player devices. Either balanced or unbalanced connections may be used.
1. Use wire strippers to remove a portion of the cable jacket.
2. Remove at least 3/16” (5 mm) from the insulation of each wire.
3. Insert the wires into the correct terminal on the included Phoenix connector, as shown below.
4. Tighten the screws to secure the wires. Do not use high-torque devices as this may damage the screws and/or connector block.
+ + -
LINE/MIC IN
LINE/MIC IN
Balanced Unbalanced
Connection Instructions
1. Connect an Ethernet cable from the network switch to one of the Ethernet ports.
2. Connect included DC 24V power supply into the unit and the wall/power management switcher.
3. *Optional* Connect an Ethernet cable from the remaining Ethernet port to one of the Ethernet ports of another AT-
OMNI-238 for cascading without the need to connect each individual OMNI 238 directly to a network switch.
IMPORTANT:
Do not connect both Ethernet interfaces to the same network switch. By default, the
Network Interface Controller (NIC) operates in switched mode.
4. Connect captive screw connectors from the outputs to audio players/distribution devices.
AT-OMNI-238 10
Installation
Mounting Instructions
1. Remove the AT-OMNI-238 from the box.
2. Install the OMNI-238 into a rack, using four rack screws.
NOTE:
Increase the air flow as needed to maintain the recommended temperature inside the rack.
NOTE:
Do not exceed the maximum weight loads for the rack. Install heaver equipment in the lower part of the rack for stability.
1
2
ETHERNET
1
2
4
6
5
+
+
7
9
+
+
11
13
12
14
8
10
!
, ensure
no exposed wires touch
+ gative (-), and Ground ( )
15
!
To preve
Balance d:
Connect a udio wires as: P
Unba udio wires as: Positive
Conne ct a
(+) a nd Ground ( )
+
16
DC 24V
AT-OMNI-23
8
O MNI
S TREAM
OG AUDIO BRIDGE
IP TO ANAL
AT-OMNI-238 11
Cascading Instructions
1. Install the units into a rack, following the mounting instructions.
2. Run an Ethernet cable from the unit connected to the network switch into the next OMNI-238.
3. Repeat the process for up to 8 units.
NOTE:
For signal stability, it is recommended not to exceed 8 units in a cascade chain.
Installation
AT-OMNI-238
O MNI
S TREAM
O MNI
S TREAM
O MNI
S TREAM
IP TO ANALOG AUDIO BRIDGE
IP TO ANALOG AUDIO BRIDGE
IP TO ANALOG AUDIO BRIDGE
1
2
ETHERNET
1
2
ETHERNET
1
2
ETHERNET
1
2
1
2
1
2
+ 11
13
+ 7
9
+
5
+
12
14
4
6
5
+
8
10
9
+
+ 7
+
11
13
4
6
5
+
12
14
8
10
+
7
9
+
+ 11
13
12
14
8
10
4
6
!
+
15
!
To prevent shorts or damage, ensure no exposed wires touch
Balanced: +
Connect audio wires as: Positive (+), Negative (-), and Ground ( )
!
Unbalanced:
Connect audio wires as: Positive (+) and Ground ( )
16
+
15
!
To prevent shorts or damage, ensure no exposed wires touch
Balanced: +
Connect audio wires as: Positive (+), Negative (-), and Ground ( )
!
Unbalanced:
Connect audio wires as: Positive (+) and Ground ( )
16
+
15
!
To prevent shorts or damage, ensure no exposed wires touch
Balanced:
+
Unbalanced:
Connect audio wires as: Positive (+) and Ground ( )
16
DC 24V
AT-OMNI-238
DC 24V
AT-OMNI-238
DC 24V
AT-OMNI-238
12
AT-OMNI-238
Connection Diagram
A / V tv
SET
-TOP
BOX
OK
224
A / V
A / V
OmniS tream Encoders
LINK
DISPLA
INPUT
LUM
VO
ID
HD MI
PW
OMN
ISTREA
M
PW
OMNI
STR
EAM
HD MI
LINK
DISPLA
INP UT
VOL
UM
ID
Ethernet
PW
OMN
ISTRE
AM
HD
MI
LINK
DISP LAY
INP
UT
VO
LUM
ID
Ethernet
Ethernet
AV LAN
Ethernet
DEV ICE:
AUD
IO S
TUS
OUR
CE
PRESE
STA
TUS:
OK
SET
PWR
POWE
Audio
Dante Audio Source
Audio
HDMI IN
OUTPUT 1
OUTPUT 2
OUTP
UT 3
OUTPUT 4
AT-HDR-H2H-
44M
LAN
FW
RS-232
IR IN
RX
TX
DC 24
Ethernet
Audio
IP TO AN
ALOG AUDIO BRIDGE
AT-OMNI-238
OMNI
STREAM
Audio
8-Channel
Professional Amplifer
CH
CH
CH
PO WE
CH
CH
CH
CH
CH
Zone
Ampliļ¬er
Installation
Zone n + 1
Zone 1
13
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