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Opto
52b
52b
Isolator
Stub
Opto
SBP
Bus
Isolator
Protection
Opto
Target Reset
Target
Reset
Isolator
IAL
FDOP OUT
IAH
NONDIRECTIONAL
IN
IACD
VACD
FDOP A
IBL
FDOP OUT
IBH
IN
IBCD
VBCD
FDOP B
ICL
FDOP OUT
ICH
IN
ICCD
VCCD
FDOP C
IGL
FDOG OUT
IGH
IN
IGCD
FDOG
LOW LEVEL
SUPERVISION
IAL
IBL
ICL
IGL
P
Primary
Power
Input
N
Supply
Power
1
P
Backup
Power
Input
N
Supply
Power
2
OUT
IPH
IAHT
IN
DIRECTIONAL
OUT
IPH
IBHT
IN
OUT
IPH
ICHT
IN
OUT
IGH
IGHT
IN
IACD
IBCD
ICCD
IGCD
IL
VBCD
Figure L-2: Sheet 2 of 3
PSE
IH
HIGH SET
OVERCURRENT
TRIP
CHANGE DETECTOR
VACD
DV DI
CD
VCCD
DI
(2)
CD
0
CDT
150
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