A high availability application includes redundant H1 cards and redundant fieldbus power. In addition, a high availability application includes short circuit protection for the segment.
The application shown in this section uses redundant H1 with Integrated Power cards and a Megablock from Relcom, Inc. The H1 with Integrated Power cards provide redundant fieldbus power for two segments. If an H1 card were used, a power supply would be required. Refer to the Relcom documentation for complete information on the Megablocks.