6 3U Rack or Tower UPS RT5.0kVA and RT6.0kVA Installation and User's GuideRear panelsFigure 1. 5594-5KXFigure 2. 5594-6KXRS232 communication portUSB communication portDry (relay) contacts communication portConnector for Remote On/Off (ROO) controlConnector for automatic recognition of anadditional battery moduleConnector for remote Power Off (RPO) controlSlot for UPS Network Management CardConnector for additional battery modulesPrimary group: 16A outlets for connection ofcritical equipmentGroup 1: (4) 10A programmable outlets forconnection of equipmentGroup 2: (4) 10A programmable outlets forconnection of equipmentInput/Output terminal blocksInput power cable with L6-30P plugRS232 communication portUSB communication portDry (relay) contacts communication portConnector for Remote On/Off (ROO) controlConnector for automatic recognition of anadditional battery moduleConnector for remote Power Off (RPO) controlSlot for UPS Network Management CardConnector for additional battery modulesPrimary group: 16A outlets for connection ofcritical equipmentGroup 1: (4) 10A programmable outlets forconnection of equipmentGroup 2: (4) 10A programmable outlets forconnection of equipment