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‘Reach’
,
Operator Microphone Gain
16 Position Switch, 3dB/step
Sets preamplifier sensitivity for Normal Microphone input level
‘Reach’ Level Indicator,
Operator Microphone Level
Off, Microphone Off
Green, low input level
Green, flashing to Red, Normal Operation
Speaker Level
Control trimpot, sets the listening level from the Remote Speaker
REAR PANEL CONNECTIONS
O
P
M
IC
(
-)
O
P
M
IC
(
+
)
O
P
S
P
K
R
(
-)
C
O
M
M
O
N
O
P
S
P
K
R
(
+
)
C
H
A
S
S
IS
+
2
4
V
D
C
C
O
M
M
O
N
S
U
T
O
F
F
S
W
C
O
M
M
O
N
A
C
T
IV
A
T
E
S
W
R
E
M
M
IC
(
-)
R
E
M
M
IC
(
+
)
R
E
M
S
P
K
R
(
-)
C
O
M
M
O
N
R
E
M
S
P
K
R
(
+
)
P
T
T
S
W
V
O
X
I
N
H
IB
IT
C
A
L
L
S
W
R
E
M
A
C
T
IV
E
C
O
M
M
O
N
O
P
A
C
T
IV
E
C
A
L
L
P
A
(
-)
P
A
(
+
)
R
E
M
(
+
)
R
E
M
(
-)
IC-52B Rear View
Audio I/O
, Euro Style Barrier Strip
Operator Microphone/Line Input, Configurable
, see Specifications, and Jumper Options
Operator Speaker Output
Remote Microphone/Line Input, Configurable
, see Specifications, and Jumper Options
Remote Speaker Output
Page Output Line Level Output
,
after signal processing, ~0dBm
Remote Microphone Line Level Output,
after signal processing, ~0dBm
PA-BUSS Output, RJ-45 Connector,
signal pairs
:
Power
, 23 Volts, current limited, shared with IND PWR
Line Level Output
,
after signal processing, ~0dBm
ALERT
, indicates attention is requested
