Com0032 Jumper Locations And Connections - ABB RELION Series Technical Manual

Section 13
Protection relay's physical connections
13.4.7.2
778
Table 728: EIA-485 connections for COM0022 and COM0023 (X6)
Pin 2-wire mode
1 -
6 -
7 B/-
8 A/+
Table 729: EIA-485 connections for COM0023 (X5)
Pin 2-wire mode
9 -
8 -
7 A/+
6 B/-
5 AGND (isolated ground)
4 IRIG-B +
3 IRIG-B -
2 -
1 GND (case)

COM0032 jumper locations and connections

The optional communication modules include support for optical ST serial
communication (X9 connector). The fibre-optic ST connection uses the COM1 port.
1MRS758755 A
4-wire mode
Rx/+
Rx/-
Tx/-
Tx/+
4-wire mode
Rx/+
Rx/-
Tx/+
Tx/-
REC615 and RER615
Technical Manual