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Table 746: Optical ST connection (X12)
Group
Jumper connection
Description
X3
1-2
2-3
Star topology
Loop topology
X24
1-2
2-3
Idle state = Light on
Idle state = Light off
Table 747: EIA-232 connections for COM0022 and COM0023 (X6)
Pin
EIA-232
1
DCD
2
RxD
3
TxD
4
DTR
5
AGND
6
-
7
RTS
8
CTS
Table 748: EIA-485 connections for COM0022 and COM0023 (X6)
Pin
2-wire mode
4-wire mode
1
-
Rx/+
6
-
Rx/-
7
B/-
Tx/-
8
A/+
Tx/+
Table 749: EIA-485 connections for COM0023 (X5)
Pin
2-wire mode
4-wire mode
9
-
Rx/+
8
-
Rx/-
7
A/+
Tx/+
6
B/-
Tx/-
Table continues on the next page
Protection relay's physical connections
1MRS758755 C
848
REC615 & RER615
Technical Manual
Содержание Relion REC615
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