The RPW600 modem has a built-in 5 kVAC (RMS, 1 min) level insulation
against ground potential in the pilot wire connection.
13.4.6
Optical ST serial rear connection
Serial communication can be used optionally through an optical connection either in loop
or star topology. The connection idle state is light on or light off.
Using ST loop mode requires an ST serial converter that supports
detecting and removing of duplicate request after transmission trough full
circle.
13.4.7
Communication interfaces and protocols
The communication protocols supported depend on the optional rear communication
module.
Table 950:
Supported station communication interfaces and protocols
Interfaces/Protocols
Ethernet
Serial
100BASE-TX RJ-45
100BASE-FX LC
EIA-232/EIA-485
Fiber optic ST
IEC 61850-8-1
●
●
-
-
IEC 61850-9-2 LE
●
1)
●
-
-
MODBUS RTU/
ASCII
-
-
●
●
MODBUS TCP/IP
●
●
-
-
DNP3 (serial)
-
-
●
●
DNP3 TCP/IP
●
●
-
-
IEC 60870-5-103
-
-
●
●
● = Supported
1) Not available for RED615 line differential communication connection
1MAC059074-MB A
Section 13
Protection relay's physical connections
615 series ANSI
1145
Technical Manual
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