GE T1 Multiplexer - Figure 3: (B)86431-0 X Power Unit Block Diagram

342-86400-431PS
Issue 2.1
March 2013
Page 12
Copyright

GE Multilin Inc. 2001-2013
BLOCK DIAGRAM
POWER UNIT
86431-0X
86431-0X
POWER UNIT
VICOR
CONVERTER
U1
5 9
1 4
J1
A12, C12 A13, C13
F1
L2
L1
A1-4 C1-4
C9 C10 C11
J1
GE Multilin
LOW VOL.
DET.
U2
TO SHELF
POWER BUS
+ 5V GND
TO STATION BATTERY
+ –
P/O 86431-90 P/B
NO C
TO POWER ALARM
CIRCUIT
TB2
2 1
TB1
2 1
P/O 86431-90 P/B
MONITOR
POINT
P3
2 1
ALARM
RELAY
U3
A13A12
ALARM
1) REFER TO UNIT EAS-86431-M1 FOR COMPLETE SCHEMATIC.
2) NORMALLY CLOSED CONTACT (J1 PIN C11) WAS EXPOSED ON
86431-90 PADDLEBOARDS MS ISS 91X AND MS ISS 1.
Figure 3: (B)86431-0X Power Unit Block Diagram