10.8 JPDS Core 28 V DC Power Distribution
10.8.1 Functional Description
The IS410JPDS power distribution board receives 28 V dc power from chosen supplies and distributes it to system controllers
and branch circuit I/O pack power distribution boards. It has no fuses or switches and can maintain three separate power buses
for R, S, and T controls, or optionally it can be jumpered to provide a single bus with redundant supplies. It is also possible to
wire two adjacent JPDS boards together. JPDS integrates into the PDM system feedback offered through the PPDA I/O pack.
The JPDS power distribution board receives 28 V dc power from chosen supplies and distributes it to system controllers and
branch circuit I/O pack power distribution boards. It is designed for Class I Division 2 applications, so it has no fuses or
switches. It can maintain three separate power buses for R, S, and T controls, or optionally it can be jumpered to provide a
single bus with redundant supplies. It is also possible to wire two adjacent JPDS boards together.
JPDS with PPDA I/O Pack In Use
10.8.1.1 Compatibility
The JPDS board is compatible with the feedback signal P1/P2 connectors on JPDE leading to a PPDA I/O pack. The DC-62
connector on JPDS is compatible with the PPDA I/O pack.
388 GEH-6855_Vol_II GEH-6855_Vol_II Mark VIeS Functional Safety Systems Volume II
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