Block diagrams – Toa DA-250DH CU User Manual
Page 19
19
Current Limiter
Short Detector
Protection Circuit
OUTPUT 1
relay
CH 1
OUTPUT
CH 2
OUTPUT
+4 dB
-10 dB
CH 1 sensitivity
selection jumper
(+4 dB/-10 dB)
CH 1
input level
control
+4 dB
-10 dB
CH 2 sensitivity
selection jumper
(+4 dB/-10 dB)
CH 2
input level
control
ON
OFF
BRIDGE ON/OFF switch
+
-
BRIDGE
OUTPUT
Current Limiter
Short Detector
Protection Circuit
OUTPUT 2
relay
+
-
PARALLEL
switch
H
H
E
C
C
CH 1 INPUT
E
H
H
E
C
C
CH 2 INPUT
E
14. BLOCK DIAGRAMS
14.1. DA-250D
14.2. DA-250DH
PARALLEL
switch
OFF
ON
CH 2 HPF
ON/OFF jumper
HPF
50 Hz
Current Limiter
Short Detector
Protection Circuit
OUTPUT 1
relay
CH 1
OUTPUT
CH 2
OUTPUT
+4 dB
-10 dB
CH 1 sensitivity
selection jumper
(+4 dB/-10 dB)
CH 1
input level
control
+4 dB
-10 dB
CH 2 sensitivity
selection jumper
(+4 dB/-10 dB)
CH 2
input level
control
ON
OFF
BRIDGE ON/OFF
switch
+
-
BRIDGE
OUTPUT
Current Limiter
Short Detector
Protection Circuit
OUTPUT 2
relay
+
-
OFF
ON
CH 1 HPF
ON/OFF jumper
HPF
50 Hz
H
H
E
C
C
CH 1 INPUT
E
H
H
E
C
C
CH 2 INPUT
E