2. Installation and ConnectionExpress5800/R310e-E4, R320e-E4, R320e-M4, R310f-E4, R320f-E4, R320f-M4 User's Guide62Chapter 2 Preparations When the device is not Plug and Play device, turn off the server and devices to be connected beforeconnecting. Fix the power cord or interface cable with cable ties. Make sure that no pressure is applied on the plug of power cord.2.4.1 Connecting to a uninterruptible power supply (UPS)To connect the power cord of the server to the uninterruptible power supply (UPS), use the connector output onthe rear of the UPS. For details, refer to the manual supplied with the UPS.If you want to control the power of server with the output of UPS, change the following BIOS settings.[Server]- [Power Control Configuration]-[AC-LINK]Select Power On to perform automatic operations by using the UPS.See the following for details.Chapter 3 (2. BIOS Setup Utility (SETUP)).Chapter 3 (1. System BIOS) in Maintenance Guide (Windows)Chapter 3 (1. System BIOS) in Maintenance Guide (Linux)Chapter 3 (1. System BIOS) in Maintenance Guide (VMware)Option slot Overload protectionreset button Connector outputsInput connector(NEMA5-15P)Voltage sensitivity setting buttonComputer interface port (COM)TVSS device connectorExample Universal Serial Bus (USB) port