133.2 Package contentAfter opening the packaging, it is first necessary to check the contents.The package must contain:3.3 Connection3.3.1 Installation requirementsWarning:Installation must be performed by qualified personnel. The firstconnection to perform is the protective conductor (earth cable),which must be connected to the screw marketed .The UPS, when inserted in an installation, does not alter the existingneutral (system earthing) arrangements.UPS USB cable RS232 cableJumper(15/20kVA models only) User manual Software CD