
SSBP-3000C
Page 14
Figure 2: SSPB Block Diagram
HPA ASSEMBLY
W/G ARM ASSEMBLY
TEMP
SENSOR
+12V,
-9V
+12V,
-9V
OUTPUT
POWER
DETECTOR
40 dB
CIRCULATOR
LNA
CONTROLLER
&
POWER CONDITIONER BOARD
BPF
ISOLATOR
+12 V
FW_PWR
J1
RF IN
+ 12 V
RF_OUT
MON
MAIN CONTROLLER BOARD
MUTE_PA
RS-485_UC
ALM_PA
REDUND
REDUND
RS-485
RELAY
RS-485
RELAY
RS-232
RS-232
MAIN
POWER
SUPPLY
J5
AC LINE
- 9 V
COOLING
FANS
(4)
CURRENT
SENSOR
CS
+12 V
+12 V
RV_PWR
REFLECTED
POWER
DETECTOR
30 dB
o
C
THERMISTOR
DIGITAL POWER
MONITOR
+12 V
RS-485_PM
HPA
L
G
N
L N
L
N
GND
- 9 V
RS-485_PA
TH
+12 V
SECONDARY
POWER
SUPPLY
VARIFAN
POWER
SUPPLY
TH
48 V (0 ... 64 V)
+12 V
+12 V
+5V
GND
UP
DOWN
LEFT
RIGHT
ENTER
CLEAR
FRONT PANEL BUTTONS
FRONT PANEL PCB
FRONT PANEL DISPLAY
10 MHz REFERENCE
OSCILLATOR
10 MHz
SPLITTER
+12 V
GND
L-BAND TO C-BAND UP-CONVERTER
AMP
BPF
RS-485_UC
ALARM_UC
+12 V
VVA
MIXER
PLL
LO
CONTROLLER
AMP
GND
GND
-9 V
REF
10 MHz
OUT
50
50
50
ALARM_UC
CIRCUIT
BREAKER
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