Siemens SICAM RTU User Manual page 132

System Components
64 1½-pole commands, relay common return on plus pole with 2-rail system
DO-2210
A B
Note
The fused circuit with output relay OR0 must be used before the fused circuit with output relay OR1.
132
C00
C31
A
B
OR0
OR1
CA00
CB00
CA31
CB31
COM
A
COMB
GRA
GRB
VR
U
ext+
OA0
U ext-
OA1
OA2
OA3
SICAM RTUs, SICAM AK 3 User Manual
Edition 07.2016, DC2-028-2.03