4
947189
Figure 4. Star or Daisy Chain Wiring Configurations
STAR WIRING
SHIELDED WIRE
NO SMALLER THAN
24 AWG UP TO 1000 FT.
AMPLIFIER
AMPLIFIER
DAISY CHAIN WIRING
SHIELDED WIRE
NO SMALLER THAN
24 AWG. NO GREATER
THAN 1000 FT. TOTAL
TO LAST MICHROPHONE
Figure 5. Typical Connections to a D-Series AmpliCenter
PAGING IN
G
R
O
UND
C1
RI
N
G
TI
P
+
-
LE
FT
RI
G
H
T
G
R
O
UND
G
R
O
UND
70 V OUT
MUSIC IN
SHIELD
PAGE IN
GR
OU
N
D
C1
RING
TI
P
+
-
LE
FT
RIG
H
T
GR
OU
N
D
GR
OU
N
D
70 V OUT
MUSIC IN
SHIELD
DAISY CHAIN WIRING
MIC 1
MIC 2
MIC 3
MIC 4
C C -
+
BUSY +
BUSY -
GND
C C -
+
BUSY +
BUSY -
GND
C C -
+
BUSY +
BUSY -
GND
C C -
+
BUSY +
BUSY -
GND
TERMINAL BLOCK
R66B
R66B
D SERIES AMPLICENTER
TERMINAL BLOCK
BUSY +
BUSY -
GND
C C -
+
STAR WIRING
(ALL OTHER MICROPHONES ARE ATTACHED
IN A SIMILAR MANNER TO THE TERMINAL BLOCK))
Figure 6. Typical Connections to Paging Controller Unit
PAGING
CONTROLLER
TERMINAL STRIP
DAISY CHAIN WIRING
(REFER TO FIGURE 5 FOR
TYPICAL STAR WIRING
CONFIGURATION)
0dBm
0dBu
N .B .
AA
SHIELD
MIC 4
C C - +
BUSY +
BUSY -
GND
MIC 2
MIC 3
MIC 1
C C - +
BUSY +
BUSY -
GND
C C - +
BUSY +
BUSY -
GND
C C - +
BUSY +
BUSY -
GND
