The invention relates to a device for loading a patient connector for peritoneal dialysis with a closure plug. Disclosed herein is a DFE design that operates at frequencies above 10 GHz, making it feasible to employ decision feedback equalization in optical transceiver modules. The arm and upright can be pivoted about various axes to allow the light source to be positioned arbitrarily to various positions. The molten salt after chlorination treatment is introduced into an electrolysis chamber 8 and electrolyzed for the formation of Ca and chlorine from CaCl2, and the thus-formed Ca or Ca-containing molten salt is transferred from the electrolysis chamber 8 to the reduction chamber 1.