1 CHAPTER OVERVIEW
This product supports Substation Automation System (SAS), and Supervisory Control and Data Acquisition (SCADA)
communication. The support embraces the evolution of communications technologies that have taken place since
microprocessor technologies were introduced into protection, control, and monitoring devices which are now
ubiquitously known as Intelligent Electronic Devices for the substation (IEDs).
As standard, all products support rugged serial communications for SCADA and SAS applications. By option, any
product can support Ethernet communications for more advanced SCADA and SAS applications.
This chapter contains the following sections:
Chapter Overview 505
Communication Interfaces 506
Serial Communication 507
Standard Ethernet Communication 510
Redundant Ethernet Communication 511
Simple Network Management Protocol (SNMP) 533
Data Protocols 540
Read Only Mode 569
Time Synchronisation 571
P446SV Chapter 21 - Communications
P446SV-TM-EN-1 505
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