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P/O 86431-90 P/B
B86431-4X
POWER UNIT
STATUS
TB2
NOTE: REFER TO EAS-86431-4X FOR COMPLETE SCHEMATIC.
Figure 4: B86431-4X Power Unit Block Diagram
Copyright GE Multilin Inc. 2001-2013
MONITOR
POINT
2
1
P3
A12
A13
A12, C12
LOW
VOLTAGE
DETECTION
CIRCUITRY
ALARM
RELAY
U7
A1-4
C9
C10
2
1
NO
C
TO POWER ALARM
TO STATION BATTERY
CIRCUIT
342-86400-431PS
Issue 2.1
March 2013
Page 13
TO SHELF
POWER BUS
+ 5V
GND
A13, C13
J1
4
8
GLARY
CONVERTER
PROTECTION
U2
3
2
1
L1
F1
C1-4
J1
2
1
TB1
–
+
GE Multilin
BLOCK DIAGRAM
POWER UNIT
B86431-4X
OVER-
VOLTAGE
CIRCUITRY
P/O 86431-90 P/B
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