In telecommunication, a customer service unit (CSU) is a device that provides an accessing arrangement at a user location to either switched or point-to-point, data-conditioned circuits at a specifically established data signaling rate.
... fought 200.000 Waffen SS soldiers under general Karl Fraum[?] and was defeated with 600 casualties. On June 10 major Otto Dickmann[?]’s troops wiped out the village of ...