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Dell K789N, K788N Connect the internal battery connector see Figure, Replace the UPS front cover

Models: J716N 500W H965N H900N J715N K788N K806N H914N K789N

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NOTE: A small amount of arcing may occur when connecting the batteries. This is normal and does not damage the unit or present any safety concern.

4Connect the internal battery connector (see Figure 12).

Figure 12. Connecting the Internal Battery Connector

5Replace the metal battery cover. Torque the screw to 0.7 Nm (6.2 lb in).

6Replace the UPS front cover.

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Dell K789N, K788N, K806N, 500W Connect the internal battery connector see Figure, Replace the UPS front cover, Installation

Contents

Users Guide Dellt Tower UPS 500W, 1000W, and 1920/1500Ww w w . d e l l . c o m s u p p o r t . d e l l . c o m Notes and Warnings Information in this document is subject to change without noticeE 2009 Dell Inc. All rights reserved Installation Table of ContentsSafety Warnings Introduction5 Additional UPS Features RS-232 and USB Communication PortsNetwork Transient Protector Dell UPS Management Software Troubleshooting UPS MaintenanceSpecifications Testing BatteriesIntroduction S Two standard communication ports USB and DB-9 serial port Dell Warranty and Support Information Finding InformationSafety, Environmental, and Regulatory Information found at support.dell.comSafety Warnings IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONSSafety Warnings Installation Inspecting the EquipmentUnpacking the System This section shows the rear panels of the Dell Tower UPS models Identifying the UPS Rear PanelsInstallation Figure 3. 500W, 100/120V Rear Panel14 Installation Figure 5. 1000W, 120V Rear PanelFigure 6. 1000W, 230V Rear Panel Figure 8. 1920W, 230V Rear Panel InstallationFigure 7. 1920W/120V, 1500W/100V Rear Panel On/Off ButtonIdentifying the UPS Front Panel 16 InstallationFigure 9. The Dell Tower UPS Connecting the UPS Internal Battery 18 Installation 4 Connect the internal battery connector see FigureFigure 12. Connecting the Internal Battery Connector 6 Replace the UPS front coverExternal Battery Module Installation 3 Plug the EBM cable into the UPS battery connector see Figure Installing the UPS UPS Initial Startup Table 2. Power Cord Ratings continued InstallationRating Table 2. Power Cord Ratings continued 24 InstallationRating 5 Plug the UPS power cord into a power outlet If there are no active alarms, a “No Active Alarms” message appears Operation UPS Startup and ShutdownStarting the UPS Starting the UPS on Battery UPS ShutdownControl Panel Functions Changing the Language Display FunctionsStartup Screen Screen Locked UPS StatusUPS General Alarms Active Battery ModeBad Battery Detected or Battery Disconnected Battery Test Statusequipment Event Log MeasurementsTable 6. Control Screens Control ScreensTable 6 describes the available control screens Control ScreensTable 7. Settings SettingsIdentification Available SettingsDefault Setting Table 7. Settings continuedAvailable Settings DescriptionDefault Setting Table 7. Settings continuedAvailable Settings DescriptionDefault Setting Table 7. Settings continuedAvailable Settings DescriptionRetrieving the Event Log Behavior on OverloadConfiguring Load Segments Controlling Load Segments Through the DisplayConfiguring Automatic Start Delay Configuring Automatic on Battery Shutdown Configuring Battery Settings Configuring the UPS for an EBMConfiguring Automatic Restart Running Automatic Battery TestsConfiguring Automatic Battery Tests Additional UPS Features RS-232 and USB Communication PortsAdditional UPS Features Table 9. RS-232 Communication Port Pin AssignmentDell Network Management Card Optional Network Transient Protector Dell UPS Management SoftwareUPS Maintenance UPS and Battery CareTransporting the UPS Figure 24. Removing the UPS Front CoverFigure 26. Disconnecting the Internal Battery Connector 4 Disconnect the internal battery connector see FigureFigure 25. Removing the Battery Cover UPS MaintenanceWhen to Replace Batteries Testing BatteriesStoring the UPS and Batteries Updating the UPS Firmware UPS MaintenanceTable 11. Dimensions and Weights SpecificationsExternal Battery Module DimensionsNominal Voltage Power LevelsTable 12. Electrical Input Voltage RangeTemperature Table 14. Environmental and SafetyOperating Temperature Safety ConformanceBattery Runtimes Table 15. BatteryConfiguration Figure 27. Line-Interactive UPS Block DiagramTroubleshooting Accessing Alarms and ConditionsUPS Status Menu Typical Alarms and Conditions Event Log MenuPossible Cause Table 16. Typical Alarms and Conditions continuedAlarm or Condition ActionTroubleshooting Table 16. Typical Alarms and Conditions continuedAlarm or Condition Possible CauseAlarm or Condition Silencing the AlarmTable 16. Typical Alarms and Conditions continued Possible Cause