ABB RELION Series Technical Manual page 785

1MRS758755 A
REC615 and RER615
Technical Manual
GUID-CA481BBF-C1C9-451D-BC18-19EC49B8A3A3 V2 EN
Figure 419: Jumper connections on communication module COM0032
Table 730: X9 Optical ST jumper connectors
Group
X15
X24
Protection relay's physical connections
3
X15
2
1
Jumper connection
1-2
2-3
1-2
2-3
Section 13
3
X24
2
1
Description
Star topology
Loop topology
Idle state = Light on
Idle state = Light off
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