Dynacord PROMATRIX System Reference Manual page 24

DEVICE DESCRIPTIONS
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 5.12
Block diagram:
L
AUX 1
R
IN A
L
AUX 2
R
+24V
1 3
JP1
2 4
MIC/
MIC
LINE
LINE
1 2
IN B
3
NRS 90233
figure 5.13
Internal Settings:
1. AUX input sensitivity
The input levels can be set in a range of -10 dBu to +12 dBu using trimmers VR2 (AUX 1) and VR3 (AUX 2).
The trim-potentiometers' coarse scales are meant for your convenience, helping you in adjusting the levels.
Potentiometer setting
Left margin
Center position
Right margin
2. MIC / LINE switching and sensitivity setting for the MIC / LINE input
The MIC / LINE input's internal PAD-switch (S1) allows switching the channels' sensitivity between
microphone and line level (30 dB). The GAIN-control on the module's front panel is provided to precisely
adjust the input sensitivity (range 40 dB).
5-12
BALANCED
LO (-)
SOURCE
HI (+)
pin-assignment of the MIC/LINE IN XLRF-type connector
AUX 1
GAIN
AUX 1
AUX 2
GAIN
AUX 2
PILOT A
PILOT B
GAIN
LIN
JP2
COMP
COMPRESSOR /
LIMITER
block diagram MIC/LINE + 2 AUX input module
Input level
+12 dBu
-3 dBu
-10 dBu
1
UNBALANCED
3
2 SOURCE
MON A
A
D
MON B
BOARD
CONTROL
BOARD
STATUS
& ID
JP1
LINE
MIC
5 6
PROMATRIX System User Handbook 1.1
1
3
2
+24V
+12V
ANALOG
SUPPLY
-12V
+5V
DIGITAL
SUPPLY
INTERNAL MONITOR
PILOT
MCLK
2 CHANNEL
BCLK
DIGITAL
WCLK
AUDIO
DIN
4
SPI
RES