The IS200JPDHG1A is a PCB component created by General Electric as part of the Mark VI system. The Mark VI was released by GE as part of its Speedtronic line for gas turbine and steam turbine management, which began with the release of the Mark I in the 1960s. The Mark VI is typically powered by a 125Vdc battery system. However, it can be powered from a 120/240VAC supply, using a power converter with an isolation transformer to rectifying the power to 125Vdc. For gas turbines, the ignition transformer requires a separate power supply with short circuit protection of 20A or less.

The IS200JPDHG1A is a high density power distribution card. The board provides a separate protected control power supply for each I/O packet. Multiple IS200JPDHG1A boards can be Daisy chained together using J1 and J1X connectors; However, when doing so, the input current cannot exceed the rating of the first JPDH J1 plug. The IS200JPDHG1A can be used in a number of hazardous locations, including Class 1 Zone 2, Class 1 Zone 2, and ATEX. The user must follow the wiring and maintenance requirements of UL/ATEX HazLoc.

The IS200JPDHG1A has 24 varistors divided into 3 rows of 8 each. It has 24 2-position plugs arranged in three rows of 8 each (JR1-JR8, JS1-JS8, JT1-JT8). The board also has three additional 2-position plugs, labeled JR5, JS5, and JT5. It has two 6-digit plugs labeled J1 and J1X. For more information about the board and its components, see the GE publication GEI-100861.