RSC-HMU Wiring Diagrams Charlie July 21, 2022 21:55 Updated The diagram for the RSC-HMU Card is here. Note page 8 shows the pin connections to the controller. You may also want the wiring diagrams for the MOD48 Generator. pmr-qmts-lte-gpioe-card-xc1a.pdf 300 KB Download Related articles MOD48 Generator Wiring Diagram RSC-HMU Suggested Parts and Tools for Working on the controller Trouble shooting the Fuel Level Sender to he RSC-HMU Controller Changing the fuel sensor calibration on the RSC-HMU Controller. Controllis RSC-HMU Comments 0 comments Please sign in to leave a comment.