INSTALLATION
Eaton
®
9140 (9910-E82/E83) UPS Installation Guide for IBM
®
Applications S 164201715 Rev 2
www.eaton.com/ibm
31
REPO and ROO Installation
The E82/E83 includes a two-position terminal (see Figure 26) that can be
either left open or configured one of two ways:
S As a remote emergency power-off (REPO) contact that allows power to be
switched off at the UPS output from a customer-supplied switch in a
remote location.
S As a remote on/off (ROO) contact that allows the UPS to be turned on
and off from a customer-supplied switch in a remote location.
Figure 26. REPO/ROO Connection
W A R N I N G
The REPO/ROO circuit is an IEC 60950 safety extra low voltage (SELV) circuit. This circuit
must be separated from any hazardous voltage circuits by reinforced insulation.
C A U T I O N
To ensure the UPS stops supplying power to the load during any mode of operation, the
input power must be disconnected from the UPS when the emergency power-off function is
activated.
NOTE For Europe, the emergency switch requirements are detailed in Harmonized
document 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.
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