Connecting A Ups Unit - Sun Microsystems SPARC Enterprise M4000 Installation Manual

3.2.1

Connecting a UPS Unit

An uninterruptible power supply (UPS) unit is used to provide a stable supply of
power to the system in the event of a power failure or an extensive power
interruption. A UPS with an UPC interface can be connected to the UPC ports on the
eXtended System Control facility unit (XSCFU or XSCF Unit) (
emergency shutdown processing can be executed.
When using a single power feed, connect the UPC cable to UPC#0. When using a
dual-power feed, connect the UPC cables to UPC#0 and UPC#1 (
Note – UPC#1 cannot be used when using single power feed. Refer to the SPARC
Enterprise M4000/M5000 Servers Service Manual for the interface specifications of
the UPC port.
FIGURE 3-1
#3 #2
SPARC Enterprise M5000 Server Dual-power Feed UPC Connections
UPC#1
UPC Interface
#1 #0
Cables
UPC#0
UPS#1
Circuit
breaker
UPS#0
Circuit
breaker
Chapter 3 Installing the Server
) so that
FIGURE 3-2
).
FIGURE 3-1
AC#1
AC#0
3-3