INSTALLATIONEaton® 9140 (9910-E82/E83) UPS Installation Guide for IBM® Applications 164201715 Rev 2www.eaton.com/ibm31REPO and ROO InstallationThe E82/E83 includes a two-position terminal (see Figure 26) that can beeither left open or configured one of two ways: As a remote emergency power-off (REPO) contact that allows power to beswitched off at the UPS output from a customer-supplied switch in aremote location. As a remote on/off (ROO) contact that allows the UPS to be turned onand off from a customer-supplied switch in a remote location.Figure 26. REPO/ROO ConnectionW A R N I N GThe REPO/ROO circuit is an IEC 60950 safety extra low voltage (SELV) circuit. This circuitmust be separated from any hazardous voltage circuits by reinforced insulation.C A U T I O NTo ensure the UPS stops supplying power to the load during any mode of operation, theinput power must be disconnected from the UPS when the emergency power-off function isactivated.NOTE For Europe, the emergency switch requirements are detailed in Harmonizeddocument HD-384-48 S1, “Electrical Installation of the Buildings, Part 4: Protection for Safety,Chapter 46: Isolation and Switching.”For more information about how the REPO and ROO features function,see “Remote Emergency Power-off and Remote On/Off” on page 56.
