The Caen model A128HS is a Communication Controller for the SY127 High Voltage System.
Each module houses a HIGH SPEED CAENET node for the remote control; it allows to link one or more SY127 or SY527 Systems to a H.S. CAENET controller which acts as a System control unit.
Moreover, the Model A128HS allows to configure the SY127 System as a H.S.CAENET Controller itself, in this way it allows the control of a multicrate system from a single video terminal plugged in one of the crates.