ALLEN & HEATH PA Series - System Block Diagram; Connector Types

PA-CP User Guide 33
System Block Diagram
Connector Types
XLR connector : Pin 2 = hot (+) Pin 3 = cold (-) Pin 1 = GND
TRS input and output connectors : Tip = hot (+) Ring = cold (-) Sleeve = GND
Input Connections Type Impedance Sensitivity
Mono MIC IN Balanced XLR female 2k ohm -63 to +5dBu
Mono LINE IN Balanced TRS jack >30k ohm -25 to +10dBu
ST1,3 LINE IN L,R Unbalanced RCA phono >10k ohm -10dBu max
ST2,4 LINE IN L,R Unbalanced TRS jack >10k ohm -10dBu max
2-TRK IN L,R Unbalanced RCA phono >10k ohm 0dBu
EXT FX IN L,R Unbalanced TRS jack >10k ohm 0dBu
AMP IN Unbalanced TRS jack >10k ohm 0dBu
Output Connections Type Impedance Level
L, R, MONO, Impedance balanced TRS jack <75 ohm 0dBu
A, B SLAVE OUT Impedance balanced TRS jack <75 ohm 0dBu
FB1, FB2, AUX, FX OUT Impedance balanced TRS jack <75 ohm 0dBu
2TRK OUT Unbalanced RCA phono <75 ohm 0dBu
2TRK OUT (SPDIF) RCA phono 75 ohm coax digital
HEADPHONES Tip = L Ring = R 30 to 600 ohm, 100 ohms recommended
SPEAKER A, B Speakon pin1+ = speaker positive, pin1- = speaker negative
Minimum 4 ohms. Do not bridge or common the pins
Insert Connections Type Level
Channel, LR Unbalanced TRS tip = send, ring = return 0dBu
+
SUM
METERS
SEL
+
-
GAIN
LM HM HF
4 BAND EQUALISER
MONO CHANNEL
100Hz
MIC IN
SUM
+
SUM
EXT FX IN
R
L
GAIN
+
SUM
FADER
PFL
PEAK
FB2
FB1
MUTE
+
SUM
+
SUM
FX MUTE FOOTSWITCH
FX CHANNEL
INTERNAL FX
SELECT 1-16 / OFF
L INSERT
R INSERT
FADER
+
SUM
MUTE
L
R
R
L
2TRK IN
PRE POST
R
L
ANALOG
ADC
2TRK OUT
SPDIF DIGITAL
A
B
A
B
LEV
LEV
TEMP
PROTECT
SIGNAL
LIMITER
PROTECT
SIGNAL
LIMITER
STANDBY
SPK A SPK B
AMP A
AMP B
RELAY
SLAVE OUT
AMP IN
PFL FX AUX FB2 FB1 R L
PHONES
R
L
HEADPHONES
LR / 2TRK
PFL/AFL
MONITOR
CHAN
PFL
MAIN OUT
8 OHM4 OHM
2TRK TO LR
BGM
+
SUM
MONO OUT
MAIN LR
2TRK
MONO
LEV
HPF
100Hz
SUB
FADER
MUTE
AFL
FB1 OUT
FB1
FADER
MUTE
AFL
FB2 OUT
FB2
AUX
AUX OUT
FX
FX OUT
FB2R+L R
FB1LFB1
SOURCE SELECT
LM HM HFLF
LM HM HF
4 BAND EQUALISER
LF
PP
FADER
PFL
PEAK
STEREO CHANNEL
FX
AUX
FB2
FB1
LF
ST2/4
R
L
R
L
GAIN
ST1/3
+
+
-
LINE IN
+48V
INSERT
MUTE
PAN
DIR OUT
GAIN
LR
SUM
HF
2 BAND EQUALISER
LF
FADER
PFL
PEAK
FX
AUX
FB2
FB1
MUTE
BAL