GE IS400JGPAG1ACD Ground and Power Terminal Board (JGPAG)

Product Description: The IS400JGPAG1ACD is a GE Speedtronic Mark VIe grounding and power terminal board, matched with IS230PCAA analog core I/O pack. It supplies filtered clean 24VDC field power for 4-20mA transmitters and thermocouple sensors, and centralizes cable shield grounding for analog loops. It acts as a passive wiring termination base, organizing field instrument wiring, suppressing common-mode noise and preventing signal drift for high-precision temperature, pressure and flow measurement in turbine control cabinets.

Features:

• Designed exclusively for GE Mark VIe / Mark VIeS turbine control rack, compatible with simplex, duplex and TMR triple redundant architectures
• Filtered 24VDC distribution for field analog instruments, reduces power ripple interference
• Centralized shield grounding terminal block, unified single-point grounding for analog signal cables
• Partitioned screw terminal layout for thermocouple and 4-20mA signal wiring, convenient for maintenance and troubleshooting
• Passive termination board without signal processing chip; works together with IS230PCAA analog acquisition pack
• Eurocard plug-in design, installed on Mark VIe backplane
• ACD suffix represents hardware revision and component BOM variant
• Wide temperature design for continuous operation in power plant EMC harsh cabinet environment

Applications:

• Combined cycle power plant gas turbine Mark VIe analog signal cabinet
• Steam turbine bearing temperature, casing temperature and process pressure monitoring loop
• EX2100e generator excitation system instrument wiring termination
• Oil & gas compressor turbine control system spare replacement
• Legacy Mark VIe system retrofit and maintenance project

FAQ:

Q: What does JGPAG stand for?
A: JGPAG = Ground and Power terminal board, it provides instrument power distribution and shield grounding collection for analog I/O packs.

Q: Can it be used alone without IS230PCAA?
A: No, it is only the supporting terminal base. It must pair with IS230PCAA analog I/O pack to realize signal acquisition.

Q: What is the difference between different suffix revisions of JGPAG?
A: Suffix codes such as ACD define hardware revision. Confirm the ControlST firmware version before replacement; different revisions may not be plug-and-play.

Q: Is IS400JGPAG1ACD still in production?
A: Mark VIe series turbine hardware is legacy product. Available supply is NOS surplus or fully tested refurbished boards.