Siemens SICAM RTU User Manual page 134

System Components
64 1-pole commands, relay common return on minus pole
DO-2210
A
B
Note
The fused circuit with output relay OR0 must be used before the fused circuit with output relay OR1.
134
C00
C31
A
B
ref:
inverted
OR0
OR1
CA00 0
CB00
CA31
CB31
COM
A
COMB
GRA
GRB
VR
OA0
OA1
OA2
OA3
SICAM RTUs, SICAM AK 3 User Manual
Edition 07.2016, DC2-028-2.03
U
ext-
U ext+