General Electric 817D658-0 Slave Function PCB Board, also listed as 821D534G1, is a GE printed circuit board identified by these part numbers. It is described as a slave function PCB board, indicating its role as part of GE equipment's control or signaling architecture. The pairing of 817D658-0 and 821D534G1 provides the identifiers used for replacement, service documentation, and inventory matching.
