Plug-in card type modular equipment

The invention discloses plug-in card type modular equipment, which comprises a back plate and at least one plug-in card type module, wherein the plug-in card type module comprises a controller, a resistor and a module connector, the module connector comprises an even number of module in-place judgment terminals, and the module in-place judgment terminals are symmetrically arranged along the arrangement direction of the module connector; the back plate comprises a back plate connector matched with each plug-in card type module, and the back plate connector comprises a back plate in-place judgment terminal matched with the module in-place judgment terminal in the matched plug-in card type module; and after the back plate in-place judgment terminal in the back plate is correspondingly connected with the module in-place judgment terminal in the matched plug-in card type module, a series connection path from the power supply end to the grounding end is formed, so that the controller of thematched plug-in card type