
A051447
Fig. 19.-2
REF 542plus standard housing connections plate with mixed analog input
connector
Table 19.-1 summarizes the connectors.
Table 19.-1
Connectors
Connector
Meaning
X10
Base Unit power supply
X20
First BIO, input
X21
First BIO, output
X30
Second BIO, input
X31
Second BIO, output
X40
Third BIO, input
X41
Third BIO, output
X50
4-20 mA analog outputs, 4-20 mA analog inputs
X51
4-20 mA analog input RS 232 service interface
X52
4-20 mA analog CAN service interface
X60
Modbus RS 485, channel 2; COM L-COM I TX; SPABUS RX
X61
Modbus RS 485, channel 1; COM L-COM I RX; SPABUS TX
X62
Modbus optical, RX channel 1
X63
Modbus optical, TX channel 1
X64
Modbus optical, RX channel 2
X65
Modbus optical, TX channel 2
X66
Optical LC connector on the Ethernet module
X67
Optical LC connector on the Ethernet module
X68
Electrical RJ-45 connector on the Ethernet module
X69
Electrical RJ-45 connector on the Ethernet module
X70
Ethernet 10 Mb/s RJ-45
X71
CAN Open ISO11898 connector
74
REF 542plus
REF 542plus
Multifunction Protection and Switchgear Control Unit
Operator's manual
1MRS755869
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