GE D90 Plus - Page 17

CHAPTER 2: PRODUCT DESCRIPTION PRODUCT DESCRIPTION
D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 7
Figure 2: D90
Plus
block diagram
Figure 3: D90
Plus
hardware overview
An option of the D90
Plus
is support for the Parallel Redundancy Protocol (PRP) of IEC 62439-
3 (clause 4, 2012). The PRP allows high availability in substation automation networks. It
applies to networks based on Ethernet technology (ISO/IEC 8802-3).
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