ABB 615 Series - COM0023 Jumper Locations and Connections

13.4.8.2 COM0023 jumper locations and connections
The optional communication module supports EIA-232/EIA-485 serial communication
(X6 connector), EIA-485 serial communication (X5 connector) and optical ST serial
communication (X12 connector).
Two independent communication ports are supported. The two 2-wire ports are called
COM1 and COM2. Alternatively, if only one 4-wire port is configured, the port is called
COM2. The fiber optic ST connection uses the COM1 port.
Table 960: Configuration options of the two independent communication ports
COM1 connector X6 COM2 connector X5 or X12
EIA-232 Optical ST (X12)
EIA-485 2-wire EIA-485 2-wire (X5)
EIA-485 4-wire EIA-485 4-wire (X5)
Section 13 1MAC059074-MB A
Protection relay's physical connections
1154 615 series ANSI
Technical Manual