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Connection
Ceiling mount (AT8554)
STP cable
(MIC1-MIC3)
RJ45
Breakout cable-A
MIC 1
MIC 2
ATDM series DIGITAL SMARTMIXER
Connect the output terminals of the microphone to a device that has a microphone
input (balanced input) compatible with a phantom power supply.
The output connector is a Euroblock connector with polarity as shown in the figure
below.
Use STP cables to connect from the ceiling mount RJ45 jacks to breakout cables.
Output terminals
STP cable
(MIC4 / LED Control)
RJ45
Breakout cable-B
MIC 3
MIC 4
LED Control
TM
or
3rd-party mixer
The product requires 11V to 52V DC
phantom power for operation.
Wiring Chart
RJ45 connector
pin number
1
2
3
4
OUT A
5
6
7
8
1
2
3
4
OUT B
5
6
7
8
• Output from the microphone is low impedance (Lo-Z) balanced. The signal
appears across the pair of each output Euroblock connectors on the RJ45
breakout cables. Audio ground is the shield connection. Output is phased so
that positive acoustic pressure produces positive voltage on the left side of each
Euroblock connector.
• MIC1 is "O" (omnidirectional), MIC2 is "L" (bidirectional (figure-of-eight))
positioned horizontally at 240°, MIC3 is "R" (bidirectional (figure-of-eight))
positioned horizontally at 120°, and MIC4 is "Z" (bidirectional (figure-of-eight))
positioned vertically.
Pin assignment
MIC 1
MIC 2
MIC 3
MIC 4
LED Control
2
RJ45 breakout cable
Function
MIC2 L(+)
MIC2 L(-)
MIC3 R(+)
MIC1 O(-)
MIC1 O(+)
MIC3 R(-)
GND
GND
BLANK
BLANK
LED GREEN
MIC4 Z(-)
MIC4 Z(+)
LED RED
GND
GND
O +
O -
1
GND
L +
L -
2
GND
R +
R -
3
GND
Z +
Z -
4
GND
LED GREEN
LED RED
LED
GND
wire color
BROWN
ORANGE
GREEN
WHITE
RED
BLUE
BLACK
BLACK
-
-
GREEN
WHITE
RED
BLUE
BLACK
BLACK
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