2 INTERFACES
2.1 FRONT SERIAL PORT
Front serial port (SK1)
Use For local connection to laptop for configuration purposes
Standard EIA(RS)232
Designation SK1
Connector 9 pin D-type female connector
Isolation Isolation to ELV level
Protocol Courier
Constraints Maximum cable length 15 m
2.2 DOWNLOAD/MONITOR PORT
Front download port (SK2)
Use For firmware downloads or monitor connection
Standard Compatible with IEEE1284-A
Designation SK2
Connector 25 pin D-type female connector
Isolation Isolation to ELV level
Protocol Proprietary
Constraints Maximum cable length 3 m
2.3 REAR SERIAL PORT 1
Rear serial port 1 (RP1)
Use For SCADA communications (multi-drop)
Standard EIA(RS)485, K-bus
Connector General purpose block, M4 screws (2 wire)
Cable Screened twisted pair (STP)
Supported Protocols * Courier, IEC-60870-5-103, DNP3.0, MODBUS
Isolation Isolation to SELV level
Constraints Maximum cable length 1000 m
* Not all models support all protocols - see ordering options
2.4 FIBRE REAR SERIAL PORT 1
Optional fibre rear serial port (RP1)
Main Use Serial SCADA communications over fibre
Connector IEC 874-10 BFOC 2.5 –(ST®) (1 each for Tx and Rx)
Fibre type Multimode 50/125 µm or 62.5/125 µm
Supported Protocols Courier, IEC870-5-103, DNP 3.0, MODBUS
Wavelength 850 nm
Chapter 16 - Technical Specifications MiCOM P747
386 P747-TM-EN-1
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