ABB REF 542plus Technical Reference Manual page 61

1MRS755859
Multifunction Protection and Switchbay Control
Unit
Technical Reference Manual
Table 8.1.-1 Meaning of connectors
Connector
X10
X20
X21
X30
X31
X40
X41
X50
X60
X61
X62
X63
X64
X65
X66
X67
X68
X69
X70
X71
X72
X73
X74
X75
X76
X77
X80
X81
X82
X83
X84
X85
X86
X87
X88
Meaning
Base unit power supply
First BIO, inputs
First BIO, outputs
Second BIO, inputs
Second BIO, outputs
Third BIO, inputs
Third BIO, outputs
Analog output 0/4 ... 20 mA or Analog input 4 ... 20 mA
Modbus RS-485, channel 2; COM L-COM I RX; SPABUS TX
Modbus RS-485, channel 1; COM L-COM I TX; SPABUS RX
Optical Modbus, RX channel 1
Optical Modbus, TX channel 1
Optical Modbus, RX channel 2
Optical Modbus, TX channel 2
Optical LC connector on the Ethernet module
Optical LC connector on the Ethernet module
Electrical RJ-45 connector on the Ethernet module
Electrical RJ-45 connector on the Ethernet module
Ethernet interface (RJ-45 on the mainboard)
CAN interface
RS-232 service port (null modem connection)
Connection to HMI
IRIG-B interface for time synchronization
HSTD input
HSTD input
HSTD output
Connector for CTs and VTs
Sensor 1
Sensor 2
Sensor 3
Sensor 4
Sensor 5
Sensor 6
Sensor 7
Sensor 8
REF 542plus REF 542plus
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