
IMPORTANT:
OFF
ON
+42
+36
+30
+24
+18
+12
+6
0
GAIN
CLIP
-
SIG
-
+ 48V
ON
OFF
CONFIG
CONTROL
INPUTS
OUTPUTS
INPUT
1
2
3
4
1
2
3
4
1
2
CLIP -
SIG
-
3
4
AXI 44 AT
OFF
ON
1
2
+42
+36
+30
+24
+18
+12
+6
0
GAIN
CLIP
-
SIG
-
+ 48V
ON
OFF
CONFIG
CONTROL
INPUTS
OUTPUTS
INPUT
1
1
2
2
CLIP -
SIG
-
AXI 22 AT
GAIN LEVEL
GAIN LEVEL
A
C D
E
F G
H I
I
B
A
C D
E
F G
H I
I
B
Rear Panel
Power Receptacle
DC Power Cord
Captive Screw
Connector
Ground
all devices.
External
Power Supply
12 VDC, 1 A max.
– Return
+12 VDC input
Ridged
Smooth
1A MAX
100-240V 50-60Hz
Go to www.extron.com for the complete
user guide, installation instructions, and
AXI 22 AT and AXI 44 AT • Setup Guide
specifications before connecting the
product to the power source.
This guide provides basic instructions for an experienced technician to install the AXI 22 AT and AXI 44 AT Audio Expansion
Interfaces with Dante. For additional information and specications, see the AXI 22 AT and AXI 44 AT product pages
at www.extron.com.
NOTE: In this setup guide, the terms “AXI” and “device” are used to refer to the AXI 22 AT and the AXI 44 AT interchangeably.
Disconnect Power and Mount the AXI
Disconnect power from the AXI and turn off all devices that will be connected to it. The AXI is housed in a quarter rack width,
6inch deep, 1U high metal enclosure that can be rack mounted or sit on a table with the provided rubber feet. Select a suitable
mounting location, then choose an appropriate mounting option. Mounting information can be found in the AXI 22 AT and
AXI 44 AT User Guide at www.extron.com.
Make all external device connections before applying power.
Rear Panel Connections
POWER
12V
0.5A MAX
MIC / LINE INS OUTPUTS
12
12
A B C D E
12 VDC Power Inlet
A
Mic/Line Inputs
B
Line Outputs
C
AT (PoE)
1 2
POWER
12V
R
0.6A MAX
3 4
MIC / LINE INPUTS
A B C D E
AT (PoE) Port
D
Reset Button
E
OUTPUTS
1 2
3 4
AT (PoE)
R
Figure 1. AXI 22 AT and AXI 44 AT Rear Panel Connections
12 VDC Power Inlet — Connect the optional 12 VDC power supply to the rear panel captive screw connector and plug the
A
power cable into the IEC connector on the power supply (see figure 2 below and the attention notices on the next page). The
power LED on the front panel blinks as the unit is powering on and lights steadily when the unit is operational.
As an alternative to the optional external power supply, the AXI can be powered over Ethernet (PoE) using the AT (PoE) port.
Figure 2. Connecting the External Power Supply
1

ATTENTION:
3-pole Audio INPUT Wiring
6-pole Audio INPUT Wiring
• Always use a power supply provided by or specied by Extron. Use of an unauthorized power supply voids all
regulatory compliance certication and may cause damage to the supply and the end product.
• Utilisez toujours une source d’alimentation fournie par Extron. L’utilisation d’une source d’alimentation non autorisée
annule toute conformité réglementaire et peut endommager la source d’alimentation ainsi que l’unité.
• Unless otherwise stated, the AC/DC adapters are not suitable for use in air handling spaces or in wall cavities. The
power supply is to be located within the same vicinity as the Extron AV processing equipment in an ordinary location,
Pollution Degree2, secured to the equipment rack within the dedicated closet, podium, or desk.
• Sauf mention contraire, les adaptateurs AC/DC ne sont pas appropriés pour une utilisation dans les espaces d’aération
ou dans les cavités murales. La source d’alimentation doit être située à proximité de l’équipement de traitement
audiovisuel dans un endroit ordinaire, avec un degré2 de pollution, fixé à un équipement de rack à l’intérieur d’un
placard, d’une estrade, ou d’un bureau.
• The installation must always be in accordance with the applicable provisions of National Electrical Code ANSI/NFPA 70,
article 725 and the Canadian Electrical Code part 1, section 16. The power supply shall not be permanently xed to
building structure or similar structure.
• Cette installation doit toujours être en accord avec les mesures qui s’applique au National Electrical Code
ANSI/NFPA70, article725, et au Canadian Electrical Code, partie1, section16. La source d’alimentation ne devra pas
être fixée de façon permanente à une structure de bâtiment ou à une structure similaire.
Mic/Line Inputs — Use 3-pole 3.5mm captive screw connectors to connect two balanced or unbalanced microphone or
B
mono line level sources (AXI 22 AT) or four balanced or unbalanced microphone or mono line level sources (AXI 44 AT) (see
3-pole Audio Input Wiring in figure 3 below). Phantom power is available on all mic/line inputs.
Balanced or unbalanced stereo sources can also be connected using 6-pole captive screw connectors (see 6-pole Audio
Input Wiring in figure 3 below).
Tip
Sleeve
Jumper
Tip
Sleeve
Jumper
Tip
Ring
e
Balanced Input
Tip
Ring
16
Tip
Sleeve
Jumper
Unbalanced Input
ve
Tip
Ring
ve
Balanced Input Unbalanced Input
Figure 3. Audio Input Wiring
NOTES:
• Balanced or unbalanced stereo sources can be connected with 6-pole connectors.
• When using the 5-pole CSR adapter, connect it so the far left plug is inserted into the far left jack of the 6-pole
input (see gure 4 below).
POWER
12V
0.5A MAX
MIC / LINE INPUTS
1 2
OUTPUTS
1 2
5-pole CSR
DO NOT
Connect Here
AT (PoE)
R
Figure 4. 5-pole CSR Input Adapter
2

Line Outputs — Use 6-pole 3.5 mm captive screw connectors to connect two balanced or unbalanced mono line level
6-pole Audio OUTPUT Wiring
3-pole Audio OUTPUT Wiring
C
devices (AXI 22 AT) or four balanced or unbalanced mono line level devices (AXI 44 AT) (see 3-pole Audio Output Wiring in
figure 5 below).
Balanced or unbalanced stereo devices can also be connected using 6-pole captive screw connectors (see 6-pole Audio
Output Wiring in figure 5 below).
Tip
Ring
ve
Tip
Ring
ve
Balanced Output Unbalanced Output
Tip
NO Ground Here
Sleeve
Tip
NO Ground Here
Sleeve
Ring
e
Balanced Output
NO Ground Here
Sleeve
Unbalanced Output
Figure 5. Audio Output Wiring
ATTENTION: For unbalanced audio outputs, connect the sleeves to the ground contact. DO NOT connect the sleeves to
the negative (-) contacts.
ATTENTION : Pour l’audio asymétrique, connectez les manchons au contact au sol. Ne PAS connecter les manchons
aux contacts négatifs (–).
AT (PoE) Port — Insert an Ethernet cable to this RJ-45 port to connect the AXI to a Dante network. This port supports power
D
over Ethernet (PoE), communication with DSP Configurator for configuration, digital audio transport (AT), and communication
with the Dante network for configuration via Dante Controller.
Reset Button — The Reset button returns the AXI to different tiers of default states. When using the reset function, the LED
E
blinks to indicate the different reset modes. When not using the reset function, the LED operates as a power indicator and
matches the front panel power LED (see the Reset Modes topic in the AXI 22 AT and AXI 44 AT User Guide).
Front Panel Controls
E
CONTROL
GAIN LEVEL
+42
INPUT
+36
+30
1
+24
+18
2
C D
+12
+6
0
CONFIG
A
B
Power Indicator LED
A
USB Config Port
B
Input Selector Button
C
Input Indicator LEDs
D
Input Level and Gain LED Stack
E
Figure 6. AXI 22 AT and AXI 44 AT Front Panel Controls
Power Indicator LED — Blinks during boot up and lights steadily when the AXI is operational.
A
USB Config Port — One USB Mini-B port is used for configuration. This port can also be used for firmware updates.
B
Input Selector Button — Press this button to cycle through the AXI inputs. Select an input to adjust gain, set phantom
C
power, and view input levels for that input.
Input Indicator LEDs — These LEDs light to indicate which input is currently selected. Gain and phantom power
D
adjustments only affect the currently selected input.
GAIN
F G
H I
+ 48V
1
ON
ON
2
OFF
OFF
INPUTS
CLIP
-
-
SIG
CLIP -
-
SIG
OUTPUTS
AXI 22 AT
1
2
I
E
CONTROL
GAIN LEVEL
+42
INPUT
1
+36
+30
2
+24
+18
3
CONFIG
A
B
Gain Rotary Encoder
F
Phantom Power Switch
G
Phantom Power Indicator LEDs
H
Input and Output Signal and Clip LEDs
I
4
C D
+12
+6
0
GAIN
F G
+ 48V
1
2
ON
ON
3
4
OFF
OFF
H I
CLIP
-
-
SIG
CLIP -
-
SIG
AXI 44 AT
INPUTS
1
OUTPUTS
I
3
2
4
3