Dynacord PROMATRIX System Reference Manual page 27

Pin-Assignment Of XLRF-Type Connectors:
The pin-assignment of the MIC/LINE input's XLRF-type connector 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 connection plug.
1 SHIELD
--
3
2 +
MIC/
LINE
IN
figure 5.16
Block diagram:
+24V
1 3
JP1
2 4
MIC/
MIC
LINE
LINE
1 2
IN A
3
NRS 90233
+24V
1 3
JP2
2 4
MIC/
MIC
LINE
LINE
1 2
IN B
3
NRS 90233
figure 5.17
Internal Settings:
1. MIC / LINE switching and sensitivity setting for the MIC / LINE inputs
The MIC / LINE input's internal PAD-switches (IN A: S1, IN B: S2) allow switching the channels' sensitivity
between microphone and line level (30 dB). The two GAIN-controls on the module's front panel are provided
to precisely adjust the input sensitivity (range 40 dB).
In addition, two MIC/LINE jumpers (IN A: JP1, pins 5-6, IN B: JP2, pins 5-6) are located on the printed board
assembly allowing the correct configuration of the inputs. When changing a MIC/LINE switch it is important to
change the related jumper correspondingly (open = LINE, closed = MIC).
When shipped, the factory presets are: switches S1 and S2 set to LINE and jumpers JP1 and JP2 are open.
GAIN setting
Left margin
Center position
Right margin
PROMATRIX System User Handbook 1.1
BALANCED
LO (-)
SOURCE
HI (+)
pin-assignment of the MIC/LINE IN XLRF-type connectors
GAIN A
LIN
JP3
COMP
COMPRESSOR /
LIMITER
PILOT A
PILOT B
GAIN B
LIN
JP4
COMP
COMPRESSOR /
LIMITER
block diagram of the 2-channel MIC/LINE input module
MIC / LINE setting
MIC
LINE
MIC
LINE
MIC
LINE
1
UNBALANCED
3
2
SOURCE
MON A
A
MON B
JP1
MIC / LINE A
5 6
MIC / LINE B
5 6
JP2
MIC / LINE jumper
Closed
Open
Closed
Open
Closed
Open
DEVICE DESCRIPTIONS
1
3
2
+24V
+12V
-12V
+5V
PILOT
INTERNAL MONITOR
MCLK
BCLK
WCLK
D
DIN
BOARD
4
SPI
CONTROL
RES
BOARD
STATUS
& ID
Input level
-14 dBu
+16 dBu
-28 dBu
+2 dBu
-54 dBu
-24 dBu
ANALOG
SUPPLY
DIGITAL
SUPPLY
2 CHANNEL
DIGITAL
AUDIO
5-15