DEVICE DESCRIPTIONS
PROMATRIX System User Handbook 1.1
5-24
Pin-Assignment Of XLRM-Type Connectors:
The LINE output XLR-connectors' pin-assignment is as follows: pin 1 = screen, Pin 2 = positive conductor, pin 3 =
negative conductor. In unbalanced configuration the pins 3 (-) and 1 (screen) have to be bridged inside the
connected plug.
figure 5.28 pin-assignment of the OUT XLR-connectors
Block diagram:
A
D
MCLK
BCLK
WCLK
DOUT
OUT A
12
3
R3
R2
0dB
+6dB
JP2.A
ANALOG
SUPPLY
DIGITAL
SUPPLY
BOARD
ID
SPI
INTERNAL
MONITOR
+12V
-12V
+5V
+U24
BOARD
CONTROL
4
OUT B
12
3
R5
R4
0dB+6dB
JP1.B
0dB
JP2.B
+6dB
0dB+6dB
JP1.A
2 CHANNEL
DIGITAL
AUDIO
RES
NRS 90227
NRS 90227
MON A
MON B
MUTE A
MUTE B
figure 5.29 block diagram of the 2-channel LINE output module
Setting Output Levels Via Jumpers:
Each of the two outputs' output level can be set to 0 dB or +6 dB using the jumpers JP1 and JP2. Please make
sure to set both jumpers of an output channel (A / B) to the desired position.
When shipped, the output levels for both output channels are factory pre-set to 0 dB (all jumpers are closed).
Jumper setting
JP1, 2-4 / JP2, 2-4
Output level
channel A
Jumper setting
JP1, 1-3 / JP2, 1-3
Output level
channel B
Open +6 dB Open +6 dB
Closed 0 dB Closed 0 dB
Jumper setting for the output assignment: To be used in network installations.
When used in a network environment, the following jumpers have to be open:
OUT A LK10, LK11 (applies to printed board assemblies starting with index C!)
OUT B LK 8, LK 9
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